CN112348948B - Method, device and storage medium for constructing three-dimensional geological model - Google Patents
Method, device and storage medium for constructing three-dimensional geological model Download PDFInfo
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Abstract
The application discloses a method and a device for constructing a three-dimensional geological model and a storage medium, and belongs to the technical field of oil and gas exploitation. The method comprises the following steps: and reading physical property parameters of the three-dimensional visual modeling software for a plurality of first position points determined by a reservoir to be mined in the oil and gas well. And carrying out densification processing on the coordinates of the plurality of first position points to obtain the coordinates of the plurality of second position points. The physical property parameters of the plurality of second location points are determined by the physical property parameters of the plurality of first location points and the raw data of the oil and gas well based on the coordinates of the plurality of first location points and the coordinates of the plurality of second location points. And constructing a three-dimensional geological model of the oil-gas well based on the physical parameters of the plurality of second position points. According to the method for constructing the three-dimensional geological model, the three-dimensional geological model of the oil and gas well can be constructed according to the physical parameters of the plurality of second position points, so that the three-dimensional geological model has higher precision, and the precision requirement of acid pressure yield increase transformation simulation of a reservoir to be mined in the oil and gas well can be met.
Description
Technical Field
The application relates to the technical field of oil and gas exploitation, in particular to a method and a device for constructing a three-dimensional geological model and a storage medium.
Background
At present, in the exploitation process of an oil gas well, acid fracturing yield improvement is usually carried out on the oil gas well in order to improve the productivity of the oil gas well, and in order to determine the effect of acid fracturing yield improvement, acid fracturing yield improvement simulation is needed to be carried out on a reservoir to be exploited in the oil gas well in advance. The three-dimensional geological model of the oil-gas well is constructed as a basis for acid fracturing yield increasing transformation simulation.
Petrel is used as a set of three-dimensional visual modeling software, and is a tool for constructing a three-dimensional geological model widely used in the current oil and gas field. However, because the grid scale of the three-dimensional geologic model constructed by using Petrel is large, the constructed three-dimensional geologic model of the oil and gas well is difficult to realize acid pressure yield increase reconstruction simulation of a reservoir to be mined in the oil and gas well. Therefore, a method for constructing a three-dimensional geologic model is needed to solve the above-mentioned problems.
Disclosure of Invention
The application provides a method, a device and a storage medium for constructing a three-dimensional geological model, which can solve the problem that the simulation of acid fracturing yield increase transformation is difficult to realize. The technical scheme is as follows:
in one aspect, a method for constructing a three-dimensional geologic model is provided, the method comprising:
Reading physical property parameters of three-dimensional visual modeling software for a plurality of first position points determined by a reservoir to be mined in an oil-gas well, wherein the physical property parameters comprise one or more of pore permeability parameters, rock-mineral parameters and fracture parameters of the reservoir to be mined;
Performing densification processing on the coordinates of the plurality of first position points to obtain coordinates of a plurality of second position points, wherein the number of the plurality of second position points is larger than that of the plurality of first position points;
Determining physical property parameters of the plurality of second location points through the physical property parameters of the plurality of first location points and the original data of the oil and gas well based on the coordinates of the plurality of first location points and the coordinates of the plurality of second location points, wherein the original data comprises the physical property parameters of the plurality of location points determined when logging the reservoir to be produced;
and constructing a three-dimensional geological model of the oil-gas well based on the physical parameters of the plurality of second position points.
Optionally, the determining, based on the coordinates of the first location points and the coordinates of the second location points, the physical property parameters of the second location points through the physical property parameters of the first location points and the raw data of the oil and gas well includes:
Performing differential processing on physical property parameters of a plurality of position points included in the original data to obtain physical property parameters of a plurality of third position points;
Searching a first target position point with the same coordinates as each second position point from the plurality of first position points and/or searching a second target position point with the same coordinates as each second position point from the plurality of third position points;
And determining physical property parameters of the first target position point and/or the second target position point, which are the same as the coordinates of the second position point, as physical property parameters of the corresponding second position point.
Optionally, before determining the physical property parameters of the plurality of second location points by the physical property parameters of the plurality of first location points and the raw data of the oil-gas well based on the coordinates of the plurality of first location points and the coordinates of the plurality of second location points, the method further includes:
performing verification processing on physical property parameters of each first position point in the plurality of first position points;
and deleting the physical property parameters which do not pass the verification among the physical property parameters of the plurality of first position points.
Optionally, the reading physical property parameters of the three-dimensional visual modeling software for a plurality of first position points determined by a reservoir to be mined in an oil-gas well comprises:
acquiring well position data of the oil-gas well;
determining location information of the reservoir to be produced based on the well location data;
and based on the position information, reading physical parameters of the three-dimensional visual modeling software for a plurality of first position points determined by the reservoir to be mined in the oil-gas well.
Optionally, the constructing the three-dimensional geological model of the oil-gas well based on the physical parameters of the plurality of second location points includes:
Constructing a three-dimensional grid model based on the plurality of second position points, wherein the three-dimensional grid model comprises a plurality of grid nodes which are in one-to-one correspondence with the plurality of second position points;
And determining the physical property parameters of each second position point as the physical property parameters of the corresponding grid node to obtain the three-dimensional geological model of the oil and gas well.
In another aspect, a device for constructing a three-dimensional geological model is provided, the device comprising:
The reading module is used for reading physical property parameters of a plurality of first position points determined by three-dimensional visual modeling software for a reservoir to be mined in an oil-gas well, wherein the physical property parameters comprise one or more of pore permeability parameters, rock-mineral parameters and crack parameters of the reservoir to be mined;
The processing module is used for carrying out densification processing on the coordinates of the plurality of first position points to obtain coordinates of a plurality of second position points, and the number of the plurality of second position points is larger than that of the plurality of first position points;
the determining module is used for determining physical property parameters of the plurality of second position points through the physical property parameters of the plurality of first position points and the original data of the oil-gas well based on the coordinates of the plurality of first position points and the coordinates of the plurality of second position points, wherein the original data comprise the physical property parameters of the plurality of position points determined when logging is performed on the reservoir to be mined;
And the construction module is used for constructing a three-dimensional geological model of the oil-gas well based on the physical parameters of the plurality of second position points.
Optionally, the determining module includes:
the processing unit is used for carrying out differential processing on physical property parameters of a plurality of position points included in the original data to obtain physical property parameters of a plurality of third position points;
a searching unit, configured to search for a first target position point with the same coordinates as each second position point from the plurality of first position points, and/or search for a second target position point with the same coordinates as each second position point from the plurality of third position points;
and the first determining unit is used for determining physical property parameters of the first target position point and/or the second target position point, which are the same as the coordinates of the second position point, as physical property parameters of the corresponding second position point.
Optionally, the apparatus further comprises:
the verification module is used for verifying physical property parameters of each first position point in the plurality of first position points;
And the deleting module is used for deleting the physical property parameters which do not pass the verification among the physical property parameters of the plurality of first position points.
Optionally, the reading module includes:
The acquisition unit is used for acquiring well position data of the oil-gas well;
A second determining unit for determining location information of the reservoir to be produced based on the well location data;
and the reading unit is used for reading physical property parameters of the three-dimensional visual modeling software for a plurality of first position points determined by the reservoir to be mined in the oil-gas well based on the position information.
Optionally, the building module includes:
A building unit, configured to build a three-dimensional grid model based on the plurality of second location points, where the three-dimensional grid model includes a plurality of grid nodes corresponding to the plurality of second location points one-to-one;
And the third determining unit is used for determining the physical property parameters of each second position point as the physical property parameters of the corresponding grid nodes to obtain the three-dimensional geological model of the oil and gas well.
In another aspect, a device for constructing a three-dimensional geological model is provided, the device comprising:
A processor;
A memory for storing processor-executable instructions;
wherein the processor is configured to perform any of the steps of the method of constructing a three-dimensional geologic model provided above.
In another aspect, a computer readable storage medium is provided, in which a computer program is stored, which when executed by a processor, implements any of the steps of the method for constructing a three-dimensional geologic model provided above.
In another aspect, a computer program product is provided comprising instructions which, when run on a computer, cause the computer to perform any of the steps of the method of constructing a three-dimensional geologic model provided above.
The technical scheme provided by the embodiment of the application has the beneficial effects that at least the following steps are included:
in the embodiment of the application, the physical parameters of a plurality of first position points determined by three-dimensional visual modeling software aiming at a reservoir to be mined in an oil-gas well can be read. And then carrying out densification processing on the coordinates of the plurality of first position points to obtain the coordinates of a plurality of second position points, wherein obviously, the number of the plurality of second position points is larger than that of the plurality of first position points. And then, determining the physical parameters of the plurality of second position points through the physical parameters of the plurality of first position points and the original data of the oil-gas well based on the coordinates of the plurality of first position points and the coordinates of the plurality of second position points, namely, matching the physical parameters of the plurality of first position points and the plurality of physical parameters included in the original data onto the plurality of second position points, wherein obviously, the physical parameters of the plurality of second position points are richer than the physical parameters of the plurality of first position points, so that a three-dimensional geological model of the oil-gas well constructed based on the physical parameters of the plurality of second position points comprises more physical parameters, the physical parameters of the reservoir to be mined can be accurately represented, and further, the accuracy requirement of the reservoir to be mined on the acid pressure increase transformation simulation can be met.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for constructing a three-dimensional geologic model according to an embodiment of the application;
FIG. 2 is a flow chart of another method of constructing a three-dimensional geologic model provided by an embodiment of the application;
FIG. 3 is a schematic structural diagram of a first three-dimensional geologic model construction device according to an embodiment of the application;
FIG. 4 is a schematic structural diagram of a second three-dimensional geologic model construction device according to an embodiment of the application;
fig. 5 is a schematic structural diagram of a third three-dimensional geologic model construction device according to an embodiment of the application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail with reference to the accompanying drawings.
Before explaining the embodiment of the present application in detail, an explanation is made on an application scenario related to the embodiment of the present application.
At present, in the exploitation process of an oil gas well, acid fracturing yield improvement is usually carried out on the oil gas well in order to improve the productivity of the oil gas well, and in order to determine the effect of acid fracturing yield improvement, acid fracturing yield improvement simulation is needed to be carried out on a reservoir to be exploited in the oil gas well in advance. The three-dimensional geological model of the oil-gas well is constructed as a basis for acid fracturing yield increasing transformation simulation. Petrel is used as a set of three-dimensional visual modeling software, and is a tool for constructing a three-dimensional geological model widely used in the current oil and gas field. However, because the grid scale of the three-dimensional geologic model constructed by using Petrel is large, generally 10m level, the precision of the three-dimensional geologic model of the constructed oil and gas well is poor, and therefore, the requirement of acid pressure yield increasing transformation simulation on the precision of the three-dimensional geologic model is difficult to meet. Based on the scene, the application provides a construction method of a three-dimensional geological model capable of meeting the simulation precision requirement of acid fracturing yield improvement.
FIG. 1 is a flow chart of a method for constructing a three-dimensional geologic model according to an embodiment of the application. The method is applied to a three-dimensional geologic model construction device, and the three-dimensional geologic model construction device can be a computer device. Referring to fig. 1, the method includes:
Step 101: and reading physical property parameters of the three-dimensional visual modeling software for a plurality of first position points determined by a reservoir to be mined in the oil-gas well, wherein the physical property parameters comprise one or more of pore permeability parameters, rock-mineral parameters and fracture parameters of the reservoir to be mined.
Step 102: and carrying out densification processing on the coordinates of the plurality of first position points to obtain the coordinates of a plurality of second position points, wherein the number of the plurality of second position points is larger than that of the plurality of first position points.
Step 103: and determining physical property parameters of the plurality of second position points through the physical property parameters of the plurality of first position points and the original data of the oil-gas well based on the coordinates of the plurality of first position points and the coordinates of the plurality of second position points, wherein the original data comprises the physical property parameters of the plurality of position points determined when logging the reservoir to be produced.
Step 104: and constructing a three-dimensional geological model of the oil-gas well based on the physical parameters of the plurality of second position points.
In the embodiment of the application, the physical parameters of a plurality of first position points determined by three-dimensional visual modeling software aiming at a reservoir to be mined in an oil-gas well can be read. And then carrying out densification processing on the coordinates of the plurality of first position points to obtain the coordinates of a plurality of second position points, wherein obviously, the number of the plurality of second position points is larger than that of the plurality of first position points. And then, determining the physical parameters of the plurality of second position points through the physical parameters of the plurality of first position points and the original data of the oil-gas well based on the coordinates of the plurality of first position points and the coordinates of the plurality of second position points, namely, matching the physical parameters of the plurality of first position points and the plurality of physical parameters included in the original data onto the plurality of second position points, wherein obviously, the physical parameters of the plurality of second position points are richer than the physical parameters of the plurality of first position points, so that a three-dimensional geological model of the oil-gas well constructed based on the physical parameters of the plurality of second position points comprises more physical parameters, the physical parameters of the reservoir to be mined can be accurately represented, and further, the accuracy requirement of the reservoir to be mined on the acid pressure increase transformation simulation can be met.
Optionally, determining the physical property parameters of the plurality of second location points from the physical property parameters of the plurality of first location points and the raw data of the oil and gas well based on the coordinates of the plurality of first location points and the coordinates of the plurality of second location points includes:
Performing differential processing on physical property parameters of a plurality of position points included in the original data to obtain physical property parameters of a plurality of third position points;
searching a first target position point with the same coordinates as each second position point from a plurality of first position points and/or searching a second target position point with the same coordinates as each second position point from a plurality of third position points;
And determining physical property parameters of the first target position point and/or the second target position point, which are the same as the coordinates of the second position point, as physical property parameters of the corresponding second position point.
Optionally, before determining the physical property parameters of the plurality of second location points by the physical property parameters of the plurality of first location points and the raw data of the oil and gas well based on the coordinates of the plurality of first location points and the coordinates of the plurality of second location points, further includes:
Verifying physical property parameters of each first position point in the plurality of first position points;
And deleting the physical property parameters which do not pass the verification among the physical property parameters of the plurality of first position points.
Optionally, reading physical property parameters of three-dimensional visual modeling software for a plurality of first position points determined by a reservoir to be mined in an oil and gas well, including:
acquiring well position data of an oil-gas well;
determining location information for a reservoir to be produced based on the well location data;
Based on the position information, physical property parameters of a plurality of first position points determined by three-dimensional visual modeling software aiming at a reservoir to be mined in the oil-gas well are read.
Optionally, constructing a three-dimensional geologic model of the oil and gas well based on the physical parameters of the plurality of second location points, comprising:
Constructing a three-dimensional grid model based on the plurality of second position points, wherein the three-dimensional grid model comprises a plurality of grid nodes corresponding to the plurality of second position points one by one;
And determining the physical property parameters of each second position point as the physical property parameters of the corresponding grid node to obtain the three-dimensional geological model of the oil-gas well.
All the above optional technical solutions may be combined according to any choice to form an optional embodiment of the present invention, and the embodiments of the present invention will not be described in detail.
Fig. 2 is a flowchart of a method for constructing a three-dimensional geologic model according to an embodiment of the application. The method is applied to a three-dimensional geologic model construction device, and the three-dimensional geologic model construction device can be a computer device. Referring to fig. 2, the method includes:
step 201: and reading physical property parameters of the three-dimensional visual modeling software for a plurality of first position points determined by a reservoir to be mined in the oil-gas well, wherein the physical property parameters comprise one or more of pore permeability parameters, rock-mineral parameters and fracture parameters of the reservoir to be mined.
In some embodiments, the process of reading physical parameters of the three-dimensional visual modeling software for a plurality of first location points determined by a reservoir to be mined in an oil and gas well may be implemented by the following steps (1) -step (3):
Step (1): well position data of an oil and gas well is obtained.
In some embodiments, the correspondence between the identification of the oil and gas well and the well location data may be pre-stored in the computer device, and in particular, the computer device may pre-receive a plurality of first set of parameter values input by the user, where each first set of parameter values includes an identification of the oil and gas well and the well location data. The computer device may then generate and store a correspondence between the identification of the oil and gas well and the well location data based on the plurality of first set of parameter values.
Because the corresponding relation between the identification of the oil and gas well and the well position data is stored in the computer equipment, when the identification of the oil and gas well is received, the well position data corresponding to the identification of the oil and gas well can be obtained from the corresponding relation.
In other embodiments, the user may directly input well location data for the hydrocarbon well, and accordingly, the computer device may obtain the well location data for the hydrocarbon well entered by the user.
It should be noted that, the well position data of the oil and gas well may be the coordinates of the central point of the wellhead of the oil and gas well, and of course, the well position data of the oil and gas well may also be other data that can uniquely represent the position of the oil and gas well, such as the coordinates of the central point of the bottom of the well of the oil and gas well, which is not limited in particular in the embodiment of the present application.
Step (2): position information for the reservoir to be produced is determined based on the well location data.
It should be noted that the location information of the reservoir to be exploited is the area range where the reservoir to be exploited is located.
In some embodiments, the correspondence between the well location data and the location information of the reservoir to be produced may be pre-stored in the computer device, in particular, the computer device may pre-receive a plurality of second sets of parameter values input by the user, each second set of parameter values including one well location data and the location information of the reservoir to be produced. The computer device may then generate and store a correspondence of well position data and location information of the reservoir to be produced based on the second plurality of parameter values.
Because the corresponding relation between the well position data and the position information of the to-be-produced reservoir is stored in the computer equipment, when the well position data is received, the position information of the to-be-produced reservoir corresponding to the well position data can be obtained from the corresponding relation.
In other embodiments, the location information of the to-be-produced reservoir may be determined based on well location data, a user-entered radius of the hydrocarbon well, and a user-entered thickness of the to-be-produced reservoir.
Illustratively, assuming that the well location data is (0, 0), the radius of the hydrocarbon well is 10m, and the thickness of the reservoir to be produced is 100m, it is obvious that the location information of the reservoir to be produced is the area where the cylinder with (0, 0) as the origin of coordinates, 10m as the radius, and 100m as the height is located.
It should be noted that, in the above exemplary embodiment, the well position data is the coordinates of the center point of the bottom hole of the oil and gas well, and the thickness of the reservoir to be produced is the vertical distance of the bottom hole of the oil and gas well in the first direction, where the first direction refers to the direction toward the surface. It should be further noted that, well position data related to the following exemplary embodiments of the present application are coordinates of a center point of a bottom hole of an oil and gas well, and thicknesses of reservoirs to be mined are vertical distances of the bottom hole of the oil and gas well in a first direction, which will not be described in detail.
Step (3): based on the position information, physical property parameters of a plurality of first position points determined by three-dimensional visual modeling software aiming at a reservoir to be mined in the oil-gas well are read.
The user may input physical property parameters of the plurality of first location points determined by the three-dimensional visualization modeling software for the first reservoir into the computer device, and accordingly, the computer device may store the physical property parameters of the plurality of first location points determined for the first reservoir input by the user. Of course, the computer device may also directly obtain, from the three-dimensional visualization modeling software, the physical property parameters of the plurality of first location points determined by the three-dimensional visualization modeling software for the first reservoir, and then store the physical property parameters of the plurality of first location points determined for the first reservoir in the computer device.
Thereafter, since the physical property parameters of the plurality of first location points determined for the first reservoir are stored in the computer device, the physical property parameters of the plurality of first location points determined for the reservoir to be mined may be read from the physical property parameters of the plurality of first location points determined for the first reservoir based on the location information. Obviously, the physical parameters of the first position points determined for the reservoir to be exploited are physical parameters of the first position points in the area range of the reservoir to be exploited.
It is noted that the first reservoir refers to a reservoir range that is greater than the reservoir range to which the reservoir is to be produced and the first reservoir comprises the reservoir to be produced. For ease of understanding, the first reservoir may be understood as the reservoir to be produced within the field being produced by the target hydrocarbon well.
As an example, continuing with the above embodiment, assuming that the position information of the reservoir to be mined is the area range where the cylinder is located with O (0, 0) as the origin of coordinates, 10m as the radius, and 100m as the height, a coordinate system with the point O as the origin of coordinates, two mutually perpendicular straight lines on the bottom surface of the cylinder as the X-axis and the Y-axis, and the height direction of the cylinder as the Z-axis is established, and assuming that the coordinates of the point a among the plurality of first position points are (0, 9, 101), it is known that the point a is not in the area range where the cylinder is located, and therefore, the coordinates of the point a and the physical parameters of the point a cannot be read. Assuming that the coordinates of the B point out of the plurality of first position points are (0, 1), it is known that the B point is within the area where the cylinder is located, and therefore, the coordinates of the B point and the physical property parameters of the B point can be read. The method for reading the physical parameters of the other first position points is similar to the method for reading the physical parameters of the B point, and the embodiment of the present application will not be described in detail.
It should be noted that the physical parameters may include one or more of pore permeability parameters, rock-mineral parameters and fracture parameters of the reservoir to be mined, and of course, may also include other physical parameters of the reservoir to be mined, where the physical parameters are not specifically limited in the embodiments of the present application. It should also be noted that the pore permeation parameters include porosity parameters and permeability parameters.
It should be noted that the three-dimensional visual modeling software may be Petrel modeling software, and of course, the three-dimensional visual modeling software may also be other software, which is not limited in detail in the embodiment of the present application.
Step 202: and verifying the physical property parameters of each first position point in the plurality of first position points.
In some embodiments, each of the physical property parameters may correspond to a threshold range, and a correspondence relationship between each of the physical property parameters and the threshold range may be stored in the computer in advance, so when the physical property parameters of each of the plurality of first location points are acquired by the computer, the physical property parameters of each of the first location points may be checked based on the threshold range.
Illustratively, assuming that the porosity parameter corresponds to a threshold range of 1% -30%, the porosity of the a-site point of the plurality of first site points is 0.1%, and the porosity of the B-site point is 1.5%, then the porosity of the a-site point and the porosity of the B-site point may be verified from the threshold range of 1% -30%, respectively, by 0.1%.
Step 203: and deleting the physical property parameters which do not pass the verification among the physical property parameters of the plurality of first position points.
When the physical property parameter corresponding to any one of the plurality of first position points does not meet the threshold range corresponding to the physical property parameter, namely, the physical property parameter which does not pass the verification among the physical property parameters of any one of the position points, the physical property parameter corresponding to any one of the position points is deleted.
In other words, if the physical property parameter of the first position point is within the threshold range corresponding to the physical property parameter, the physical property parameter of the first position point may be retained, and if the physical property parameter of the first position point is not within the threshold range corresponding to the physical property parameter, the physical property parameter of the first position point may be deleted.
Continuing with the above embodiment, since the porosity of the a site is 0.1%, the porosity of the B site is 1.5%, and the threshold range corresponding to the porosity parameter is 1% -30%, it is obvious that the porosity parameter corresponding to the a site does not satisfy the threshold range corresponding to the porosity parameter, and thus the porosity parameter corresponding to the a site, that is, the physical property parameter that fails verification, may be deleted.
Step 204: and carrying out densification processing on the coordinates of the plurality of first position points to obtain the coordinates of a plurality of second position points, wherein the number of the plurality of second position points is larger than that of the plurality of first position points.
In some embodiments, in order to make the number of location points greater, the first coordinates corresponding to the first location points may be densified to obtain second coordinates, where the second coordinates correspond to a plurality of location points, and obviously, the first location points are a subset of the second location points, so that the number of the second location points is greater than the number of the first location points.
Continuing with the above embodiment, assuming that the coordinates of the O-position point in the plurality of first position points are (0, 0) and the coordinates of the B-position point are (0, 1), in some embodiments, the C-position point may be set at the midpoint between the a-position and the B-position point, and then the coordinates corresponding to the C-position point may be (0, 0.5), that is, after the encryption processing is performed on the a-position point and the B-position point, the O-position point, the B-position point, and the C-position point are obtained. Obviously, the O-position point, the B-position point and the C-position point are obtained after the O-position point and the B-position point are subjected to densification treatment.
Step 205: and determining physical property parameters of the plurality of second position points through the physical property parameters of the plurality of first position points and the original data of the oil-gas well based on the coordinates of the plurality of first position points and the coordinates of the plurality of second position points, wherein the original data comprises the physical property parameters of the plurality of position points determined when logging the reservoir to be produced.
Wherein, based on the coordinates of the plurality of first location points and the coordinates of the plurality of second location points, the implementation process of determining the physical property parameters of the plurality of second location points through the physical property parameters of the plurality of first location points and the raw data of the oil-gas well can be implemented through the following steps (a) - (c):
step a: and carrying out differential processing on physical property parameters of a plurality of position points included in the original data to obtain physical property parameters of a plurality of third position points.
Since the number of the plurality of location points included in the raw data is often very limited, and thus the number of each physical property parameter of the plurality of location points is also very limited, in some embodiments, the difference processing may be performed on each physical property parameter of the plurality of location points to obtain the physical property parameter of the plurality of third location points. The difference processing is performed by fitting each physical property parameter of a plurality of position points, and assigning values to any position point to obtain each physical property parameter of any position point, so that the number of physical property parameters of a plurality of third position points obtained can be larger than the number of physical property parameters of a plurality of position points included in the original data.
The values are noted because the raw data includes physical parameters for a plurality of location points determined when logging the reservoir to be produced. In addition, since the physical parameters include one or more of pore permeability parameters, rock and mineral parameters, and fracture parameters of the reservoir to be mined, the pore permeability parameters include porosity parameters and permeability parameters. Next, a detailed description will be given of an example of differential processing of porosity parameters of a plurality of position points.
In some embodiments, the porosity parameters of the plurality of location points included in the raw data are subjected to differential processing, fitting is performed to obtain a first formula as described below, then assignment of any location point is performed to the first formula as described below, and the porosity parameters of the plurality of third location points are determined.
A first formula:
where phi (x) refers to the porosity parameter and x refers to the vertical coordinate of the location point.
In addition, since the porosity parameter is any physical parameter included in the original data, the determination method of other physical parameters of the plurality of third location points is similar to the determination method of the porosity parameter of the plurality of third location points, and the embodiment of the present application will not be described in detail.
Step b: searching for a first target position point with the same coordinates as each second position point from a plurality of first position points and/or searching for a second target position point with the same coordinates as each second position point from a plurality of third position points.
Since the coordinates of the second position points are obtained by performing densification processing by the coordinates of the plurality of first position points, there are the same position points among the plurality of second position points as the coordinates of the plurality of first position points, and in some embodiments, the same position points may be determined as the first target position points. Obviously, the first target position point is the position point which has the same coordinate as the first position point in the second position point. Further, the physical property parameters of the plurality of third position points are obtained by performing the difference processing on the physical property parameters of the plurality of position points included in the original data, that is, the physical property parameters of the plurality of position points included in the original data are obtained by performing the difference processing on the physical property parameters of the plurality of position points. Thus, the second target position point having the same coordinates as each of the second position points can be found from the plurality of third position points.
Continuing with the above embodiment, assuming that the coordinates of the O-position points in the plurality of first position points are (0, 0), the coordinates of the B-position points are (0, 1), the coordinates of the O-position points in the plurality of second position points are (0, if the coordinates of the B position point are (0, 1) and the coordinates of the C position point are (0, 0.5), it is obvious that the first target position point is O (0, 0), and B (0, 1).
Similarly, assuming that the coordinates corresponding to the D position point in the third position point are (0, 0.5), and the coordinates corresponding to the E position point are (0,0,0.4), it is obvious that the second target position point is D (0, 0.5).
Step c: and determining physical property parameters of the first target position point and/or the second target position point, which are the same as the coordinates of the second position point, as physical property parameters of the corresponding second position point.
Because each first target position point corresponds to one physical property parameter, and each second target position point corresponds to one physical property parameter, and because the coordinates of the first target position point and/or the second target position point are the same as those of the second position point, the physical property parameters corresponding to the first target position point and the second target position point can be determined as the physical property parameters of the corresponding second position point. That is, the physical properties of the first target position point and the second target position point are matched to the corresponding second position point, and obviously, the number of the second position points is larger than that of the first position points, and the number of the physical properties of the second position points is also larger than that of the first position points.
Step 206: and constructing a three-dimensional geological model of the oil-gas well based on the physical parameters of the plurality of second position points.
In some embodiments, constructing a three-dimensional geologic model of an oil and gas well based on physical properties parameters of a plurality of second location points may be: a three-dimensional grid model is constructed based on the plurality of second location points, the three-dimensional grid model including a plurality of grid nodes in one-to-one correspondence with the plurality of second location points. And determining the physical property parameters of each second position point as the physical property parameters of the corresponding grid node to obtain the three-dimensional geological model of the oil-gas well.
Specifically, since any one of the plurality of second location points includes a coordinate, the coordinate may correspond to one grid node, and similarly, the coordinates of other plurality of second location points may also correspond to a plurality of grid nodes, respectively, so that the three-dimensional grid model may be constructed from the plurality of grid nodes. Further, since the coordinates of each second location point also correspond to the physical property parameters, each grid node also corresponds to the physical property parameters, and thus the model formed by the grid node and the physical property parameters corresponding thereto can be determined as the three-dimensional geological model of the oil and gas well.
In the embodiment of the application, the physical parameters of a plurality of first position points determined by three-dimensional visual modeling software aiming at a reservoir to be mined in an oil-gas well can be read. And then carrying out densification processing on the coordinates of the plurality of first position points to obtain the coordinates of a plurality of second position points, wherein obviously, the number of the plurality of second position points is larger than that of the plurality of first position points. And then, determining the physical parameters of the plurality of second position points through the physical parameters of the plurality of first position points and the original data of the oil-gas well based on the coordinates of the plurality of first position points and the coordinates of the plurality of second position points, namely, matching the physical parameters of the plurality of first position points and the plurality of physical parameters included in the original data onto the plurality of second position points, wherein obviously, the physical parameters of the plurality of second position points are richer than the physical parameters of the plurality of first position points, so that a three-dimensional geological model of the oil-gas well constructed based on the physical parameters of the plurality of second position points comprises more physical parameters, the physical parameters of the reservoir to be mined can be accurately represented, and further, the accuracy requirement of the reservoir to be mined on the acid pressure increase transformation simulation can be met.
Referring to fig. 3, an embodiment of the present application provides a device for constructing a three-dimensional geological model, which includes a reading module 301, a processing module 302, a determining module 303, and a constructing module 304.
The reading module 301 is configured to read physical property parameters of a plurality of first location points determined by three-dimensional visual modeling software for a reservoir to be mined in an oil-gas well, where the physical property parameters include one or more of a pore-penetration parameter, a rock-mineral parameter and a fracture parameter of the reservoir to be mined;
The processing module 302 is configured to perform densification processing on the coordinates of the plurality of first location points to obtain coordinates of a plurality of second location points, where the number of the plurality of second location points is greater than the number of the plurality of first location points;
A determining module 303, configured to determine physical property parameters of a plurality of second location points based on coordinates of the plurality of first location points and coordinates of a plurality of second location points, through physical property parameters of the plurality of first location points and raw data of an oil and gas well, where the raw data includes physical property parameters of the plurality of location points determined when logging a reservoir to be produced;
a construction module 304 is configured to construct a three-dimensional geologic model of the hydrocarbon well based on the physical parameters of the plurality of second location points.
Optionally, the determining module 303 includes:
The processing unit is used for carrying out differential processing on physical property parameters of a plurality of position points included in the original data to obtain physical property parameters of a plurality of third position points;
A searching unit, configured to search for a first target position point with the same coordinates as each second position point from a plurality of first position points, and/or search for a second target position point with the same coordinates as each second position point from a plurality of third position points;
and the first determining unit is used for determining physical property parameters of the first target position point and/or the second target position point, which are the same as the coordinates of the second position point, as physical property parameters of the corresponding second position point.
Optionally, referring to fig. 4, the apparatus further includes:
A verification module 305, configured to perform verification processing on physical property parameters of each of the plurality of first location points;
And a deleting module 306, configured to delete physical property parameters that do not pass the verification among the physical property parameters of the plurality of first location points.
Optionally, the reading module 301 includes:
The acquisition unit is used for acquiring well position data of the oil-gas well;
A second determining unit for determining location information of the reservoir to be produced based on the well location data;
And the reading unit is used for reading physical property parameters of a plurality of first position points determined by the three-dimensional visual modeling software aiming at the reservoir to be mined in the oil and gas well based on the position information.
Optionally, the building block 304 includes:
a construction unit, configured to construct a three-dimensional mesh model based on the plurality of second location points, where the three-dimensional mesh model includes a plurality of mesh nodes corresponding to the plurality of second location points one-to-one;
And the third determining unit is used for determining the physical property parameters of each second position point as the physical property parameters of the corresponding grid nodes to obtain the three-dimensional geological model of the oil-gas well.
In summary, in the embodiment of the present application, the physical parameters of the three-dimensional visual modeling software for determining the plurality of first location points of the reservoir to be mined in the oil-gas well may be read. And then carrying out densification processing on the coordinates of the plurality of first position points to obtain the coordinates of a plurality of second position points, wherein obviously, the number of the plurality of second position points is larger than that of the plurality of first position points. And then, determining the physical parameters of the plurality of second position points through the physical parameters of the plurality of first position points and the original data of the oil-gas well based on the coordinates of the plurality of first position points and the coordinates of the plurality of second position points, namely, matching the physical parameters of the plurality of first position points and the plurality of physical parameters included in the original data onto the plurality of second position points, wherein obviously, the physical parameters of the plurality of second position points are richer than the physical parameters of the plurality of first position points, so that a three-dimensional geological model of the oil-gas well constructed based on the physical parameters of the plurality of second position points comprises more physical parameters, the physical parameters of the reservoir to be mined can be accurately represented, and further, the accuracy requirement of the reservoir to be mined on the acid pressure increase transformation simulation can be met.
It should be noted that: in the device for constructing a three-dimensional geological model according to the above embodiment, only the division of the functional modules is used for illustration, and in practical application, the above functional allocation may be performed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules, so as to perform all or part of the functions described above. In addition, the device for constructing the three-dimensional geological model provided in the above embodiment belongs to the same concept as the method embodiment for constructing the three-dimensional geological model, and detailed implementation processes of the device are shown in the method embodiment, and are not repeated here.
Fig. 5 is a schematic structural diagram of a three-dimensional geologic model construction device according to an embodiment of the application, where the three-dimensional geologic model construction device 500 may have a relatively large difference due to different configurations or performances, and may include one or more processors (central processing units, CPU) 501 and one or more memories 502, where at least one instruction is stored in the memories 502, and at least one instruction is loaded and executed by the processor 501. Of course, the three-dimensional geologic model building apparatus 500 may further have a wired or wireless network interface, a keyboard, an input/output interface, and other components for implementing functions of the device, which are not described herein.
In an exemplary embodiment, a computer readable storage medium, such as a memory, including instructions executable by a processor in the above-described computer device to perform the method of determining a karst slope position in a karst paleo-landform in the above-described embodiment is also provided. For example, the computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program for instructing relevant hardware, where the program may be stored in a computer readable storage medium, and the storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The foregoing description of the preferred embodiments of the present application is not intended to limit the application, but rather, the application is to be construed as limited to the appended claims.
Claims (3)
1. A method of constructing a three-dimensional geologic model, the method comprising:
acquiring well position data of an oil-gas well;
Determining location information for a reservoir to be produced based on the well location data;
Based on the position information, reading physical property parameters of three-dimensional visual modeling software for a plurality of first position points determined by the reservoir to be mined in the oil-gas well, wherein the physical property parameters comprise one or more of pore-penetration parameters, rock-mineral parameters and crack parameters of the reservoir to be mined;
performing verification processing on physical property parameters of each first position point in the plurality of first position points; deleting physical property parameters which do not pass verification from the physical property parameters of the plurality of first position points;
Performing densification processing on the coordinates of the plurality of first position points subjected to verification processing to obtain coordinates of a plurality of second position points, wherein the number of the plurality of second position points is greater than that of the plurality of first position points;
Performing differential processing on a plurality of position points included in the original data to obtain a plurality of third position points, wherein the plurality of position points are obtained by determining when logging is performed on the reservoir to be produced;
Fitting each physical property parameter of the plurality of position points, and assigning values to physical property parameters of the plurality of third position points based on the fitted result to obtain physical property parameters corresponding to the plurality of third position points respectively, wherein the number of the physical property parameters of the plurality of third position points is larger than that of the physical property parameters of the plurality of position points included in the original data;
Under the condition that the physical property parameters are porosity parameters, fitting the porosity parameters of the plurality of position points to obtain a first formula; determining a porosity parameter of the plurality of third location points by the first formula; the first formula is ; Wherein/>The porosity parameter is referred to as x, the vertical coordinates of the position points are referred to as x, and b and c are preset values;
Searching a first target position point with the same coordinates as each second position point from the plurality of first position points, and/or searching a second target position point with the same coordinates as each second position point from the plurality of third position points, wherein the first target position point and the second target position point are respectively in one-to-one correspondence with the plurality of second position points;
Determining physical property parameters of the first target position point and/or the second target position point as physical property parameters of the corresponding second position point;
Constructing a three-dimensional grid model based on the plurality of second position points, wherein the three-dimensional grid model comprises a plurality of grid nodes which are in one-to-one correspondence with the plurality of second position points; and determining the physical property parameters of each second position point as the physical property parameters of the corresponding grid node to obtain the three-dimensional geological model of the oil and gas well.
2. A device for constructing a three-dimensional geologic model, the device comprising:
The acquisition unit is used for acquiring well position data of the oil-gas well;
A second determining unit for determining location information of a reservoir to be produced based on the well location data;
The reading module is used for reading physical property parameters of three-dimensional visual modeling software for a plurality of first position points determined by the reservoir to be mined in the oil-gas well based on the position information, wherein the physical property parameters comprise one or more of pore-penetration parameters, rock-mineral parameters and fracture parameters of the reservoir to be mined;
the verification module is used for verifying physical property parameters of each first position point in the plurality of first position points;
The deleting module is used for deleting physical property parameters which do not pass verification from the physical property parameters of the plurality of first position points;
The processing module is used for carrying out densification processing on the coordinates of the plurality of first position points which are subjected to verification processing to obtain coordinates of a plurality of second position points, and the number of the plurality of second position points is larger than that of the plurality of first position points;
The processing unit is used for carrying out differential processing on a plurality of position points included in the original data to obtain a plurality of third position points, and the plurality of position points are obtained by determining when logging is carried out on the reservoir to be mined; fitting each physical property parameter of the plurality of position points, and assigning values to physical property parameters of the plurality of third position points based on the fitted result to obtain physical property parameters corresponding to the plurality of third position points respectively, wherein the number of the physical property parameters of the plurality of third position points is larger than that of the physical property parameters of the plurality of position points included in the original data; under the condition that the physical property parameters are porosity parameters, fitting the porosity parameters of the plurality of position points to obtain a first formula; determining a porosity parameter of the plurality of third location points by the first formula; the first formula is ; Wherein/>The porosity parameter is referred to as x, the vertical coordinates of the position points are referred to as x, and b and c are preset values;
A searching unit, configured to search for a first target position point with the same coordinates as each second position point from the plurality of first position points, and/or search for a second target position point with the same coordinates as each second position point from the plurality of third position points, where the first target position point and the second target position point are respectively in one-to-one correspondence with the plurality of second position points;
a first determining unit, configured to determine physical property parameters of the first target location point and/or the second target location point as physical property parameters of the corresponding second location point;
A building unit, configured to build a three-dimensional grid model based on the plurality of second location points, where the three-dimensional grid model includes a plurality of grid nodes corresponding to the plurality of second location points one-to-one;
And the third determining unit is used for determining the physical property parameters of each second position point as the physical property parameters of the corresponding grid nodes to obtain the three-dimensional geological model of the oil and gas well.
3. A computer readable storage medium, characterized in that the storage medium has stored therein a computer program which, when executed by a processor, implements the method of claim 1.
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