CN106908842B - Method and device for determining single-well sedimentary microphase curve - Google Patents
Method and device for determining single-well sedimentary microphase curve Download PDFInfo
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Abstract
The embodiment of the application discloses a method and a device for determining a single-well sedimentary microphase curve. The method comprises the following steps: obtaining a logging curve of each oil and gas well in a target work area, and determining sedimentary microfacies plane data of each layer in the target work area according to the logging curve characteristics of the sedimentary microfacies of preset types and the logging curve of the oil and gas wells; acquiring well deviation data of the oil-gas well, and determining a three-dimensional sedimentary microfacies data volume of the target work area based on the sedimentary microfacies plane data and the well deviation data; and determining a sedimentary microfacies curve of each oil and gas well in the target work area according to the three-dimensional sedimentary microfacies data volume of the target work area. The efficiency of determining single well sedimentary microphase curves may be improved.
Description
Technical Field
The application relates to the technical field of petroleum exploration and development, in particular to a method and a device for determining a single-well sedimentary microphase curve.
Background
With the development of computer technology, three-dimensional geological modeling technology is more and more emphasized by the academia and becomes a hot spot of geological visualization technology. The three-dimensional geological modeling technology is a technology for combining tools such as spatial information management, geological interpretation, spatial analysis and prediction, geoscience statistics, entity content analysis, graphic visualization and the like in a three-dimensional environment by using a computer technology and is used for geological research. The implementation process of the three-dimensional geological modeling mainly comprises the following steps: well data loading, structural modeling, sedimentary microfacies modeling, physical modeling, reserve calculation and digital-analog grid design and output. Wherein the precondition of sedimentary microphase modeling is to determine a single-well sedimentary microphase curve. The sedimentary microfacies curve refers to the curve formed by sedimentary microfacies of the type at each sampling point location in the well. The depositional microphase type may be reflected by a log.
At present, the work of determining the single-well sedimentary microphase curve is mainly carried out manually by geological personnel. Specifically, a log of each oil and gas well in the target work area is obtained, for example: resistivity curves, natural potential curves, and the like; sampling is carried out on each well section in an oil and gas well at a sampling interval of one sampling point every 0.125 m, according to a logging curve of the oil and gas well, logging curve information of the position of each sampling point in the oil and gas well is obtained, according to the logging curve information of the position of each sampling point, a geologist manually identifies the sedimentary microfacies type of the position of each sampling point, and therefore the sedimentary microfacies curve of the oil and gas well is obtained. Because sampling points of one oil and gas well are more, the workload of manual identification of geological personnel is larger, and time and labor are wasted. Therefore, determining the efficiency of single well sedimentary microphase curves is highly desirable.
Disclosure of Invention
An object of the embodiments of the present application is to provide a method and an apparatus for determining a single-well sedimentary microphase curve, so as to improve the efficiency of determining the single-well sedimentary microphase curve.
To solve the above technical problems, embodiments of the present application provide a method and an apparatus for determining a single-well sedimentary microphase curve, which are implemented as follows:
a method of determining a single well depositional microphase curve, comprising:
obtaining a logging curve of each oil and gas well in a target work area, and determining sedimentary microfacies plane data of each layer in the target work area according to the logging curve characteristics of the sedimentary microfacies of preset types and the logging curve of the oil and gas wells;
acquiring well deviation data of the oil-gas well, and determining a three-dimensional sedimentary microfacies data volume of the target work area based on the sedimentary microfacies plane data and the well deviation data;
and determining a sedimentary microfacies curve of each oil and gas well in the target work area according to the three-dimensional sedimentary microfacies data volume of the target work area.
In a preferred embodiment, the determining sedimentary microfacies plane data of each horizon in the target work area according to the logging curve characteristics of the sedimentary microfacies of the preset type and the logging curve of the oil and gas well comprises:
determining logging curve information of each region of a first layer in the target work area according to the logging curve of the oil-gas well; the logging curve information of each region of the first layer in the target work area comprises: logging curve information of a drilling area of a first layer in the target work area and logging curve information of an un-drilling area of the first layer in the target work area;
determining sedimentary microfacies plane data of a first layer in the target work area according to the logging curve characteristics of the preset types of sedimentary microfacies and the logging curve information of each area of the first layer in the target work area; the deposition microphase plane data of the first horizon in the target work area comprises: and depositing micro types in each area of the first layer in the target work area.
In the preferred scheme, according to the logging curve of the oil and gas well, the logging curve information of each region of the first layer position in the target work area is determined, and the method comprises the following steps:
determining logging curve information of a drilling area of a first layer in the target work area according to the logging curve of the oil-gas well;
and determining the logging curve information of the non-drilling area of the first layer in the target work area based on the logging curve information of the drilling area of the first layer in the target work area.
In a preferred embodiment, the determining the logging curve information of the non-drilled region of the first horizon in the target work area based on the logging curve information of the drilled region of the first horizon in the target work area includes: and obtaining the logging curve information of the non-drilling area of the first layer position by adopting a reverse distance weighting mode based on the logging curve information of the drilling area of the first layer position in the target work area.
In a preferred embodiment, the determining sedimentary microfacies plane data of a first layer in a target work area according to logging curve characteristics of a preset type of sedimentary microfacies and logging curve information of each region of the first layer in the target work area includes: when the similarity between the logging curve feature in the logging curve information of the first area of the first horizon and the logging curve feature of one type of sedimentary microfacies type in the preset type of sedimentary microfacies reaches a preset similarity threshold, taking the type of sedimentary microfacies type in the preset type of sedimentary microfacies as the sedimentary microfacies type of the first area; the first region is any region of the first horizon.
In a preferred embodiment, the determining sedimentary microfacies plane data of a first layer in a target work area according to logging curve characteristics of a preset type of sedimentary microfacies and logging curve information of each region of the first layer in the target work area includes:
determining the sedimentary microfacies type of the well drilling area of the first layer in the target work area according to the well logging curve characteristics of the sedimentary microfacies of the preset type and the well logging curve information of the well drilling area of the first layer in the target work area;
and determining the sedimentary microfacies type of the non-drilled area of the first layer in the target work area according to the logging curve characteristics of the sedimentary microfacies of the preset type and the logging curve information of the non-drilled area of the first layer in the target work area.
In a preferred embodiment, the well-logging information includes: a log characteristic, and a parameter value of the log.
In a preferred embodiment, the well log comprises at least one of the following: natural potential curve, resistivity curve, natural gamma curve, time difference curve, density curve, acoustic curve, well diameter curve, neutron curve.
In a preferred embodiment, the determining a three-dimensional depositional microphase data volume of the target work area based on depositional microphase plane data and well deviation data includes:
calculating the thickness of the stratum between two adjacent layers in the multiple layers of the target work area according to the well deviation data;
and determining a three-dimensional sedimentary microfacies data volume of the target work area based on the stratum thickness and the sedimentary microfacies plane data.
In a preferred embodiment, the determining the three-dimensional depositional microphase data volume of the target work area based on the formation thickness and the depositional microphase plane data includes:
performing numerical processing on the deposition microphase plane data to obtain a two-dimensional deposition microphase data volume of each layer in the target work area;
determining sedimentary microphase data at a stratum position between two adjacent layers in the target work area according to the two-dimensional sedimentary microphase data volume of each layer and the stratum thickness;
and obtaining the three-dimensional sedimentary microfacies data volume of the target work area according to the two-dimensional sedimentary microfacies data volume of each layer and sedimentary microfacies data at the stratum position between the two adjacent layers.
In a preferred embodiment, the determining a sedimentary microphase curve of each oil and gas well in the target work area according to the three-dimensional sedimentary microphase data volume of the target work area includes:
carrying out gridding treatment on the target work area;
acquiring deposition microphase data of a grid through which a first oil-gas well in the target work area passes after the gridding treatment according to the three-dimensional deposition microphase data volume of the target work area;
and taking the sedimentary microphase data of the grid penetrated by the first oil and gas well as a sedimentary microphase curve of the first oil and gas well.
In a preferred embodiment, the predetermined deposition micro-phase includes at least one of the following: the method comprises the following steps of underwater flow distribution of main river channel microphase, underwater flow distribution of main river channel side edge microphase, sand dam microphase, flow distribution bay microphase, flow distribution chamber and front source thin layer sand microphase.
In a preferred embodiment, the well deviation data comprises: the inclination, azimuth and depth of each well section in the oil and gas well.
An apparatus for determining a single well depositional microphase curve, the apparatus comprising: the device comprises a deposition microphase plane data determining module, a three-dimensional deposition microphase data volume determining module and a deposition microphase curve determining module; wherein,
the sedimentary microfacies plane data determining module is used for acquiring a logging curve of each oil and gas well in a target work area and determining sedimentary microfacies plane data of each layer in the target work area according to the logging curve characteristics of the sedimentary microfacies of preset types and the logging curve of the oil and gas wells;
the three-dimensional sedimentary microfacies data volume determining module is used for acquiring well deviation data of the oil and gas well and determining a three-dimensional sedimentary microfacies data volume of the target work area based on the sedimentary microfacies plane data and the well deviation data;
and the sedimentary microfacies curve determining module is used for determining the sedimentary microfacies curve of each oil and gas well in the target work area according to the three-dimensional sedimentary microfacies data volume of the target work area.
In a preferred embodiment, the module for determining deposition microphase plane data includes: the device comprises a logging curve information determining module and a first horizon deposition microphase determining module; wherein,
the logging curve information determining module is used for determining logging curve information of each region of a first layer in the target work area according to the logging curve of the oil-gas well; the logging curve information of each region of the first layer in the target work area comprises: logging curve information of a drilling area of a first layer in the target work area and logging curve information of an un-drilling area of the first layer in the target work area;
the first horizon sedimentary microfacies determining module is used for determining sedimentary microfacies plane data of a first horizon in the target work area according to the logging curve characteristics of the preset types of sedimentary microfacies and the logging curve information of each area of the first horizon in the target work area; the deposition microphase plane data of the first horizon in the target work area comprises: and depositing micro types in each area of the first layer in the target work area.
The embodiment of the application provides a method for determining a single-well sedimentary microfacies curve, according to the logging curve information of each oil and gas well in a target work area, sedimentary microfacies plane data of each layer position in the target work area can be determined, and therefore sedimentary microfacies curves of each oil and gas well in the target work area can be determined. For each well section in an oil and gas well, the sampling interval of the method is that a sampling point is generally selected at about 30-40 meters for the stratum thickness between two adjacent layers in a target work area, the sampling point is less, the workload of manual identification of geology personnel can be effectively reduced, and therefore the efficiency of determining the single-well sedimentary microfacies curve can be improved.
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In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without any creative effort.
FIG. 1 is a flow chart of an embodiment of a method of determining a single well depositional microphase curve of the present application;
FIG. 2 is a schematic vertical sectional view of a target work area division in an embodiment of the present application;
FIG. 3 is a schematic illustration of a comparison of depositional microphase curves for a interval in an oil or gas well, determined using the prior art and the method of the present application, respectively, in an example of the present application;
FIG. 4 is a block diagram illustrating the composition of an embodiment of the apparatus for determining a single well depositional microphase curve according to the present application;
FIG. 5 is a block diagram of the sedimentary microphase plane data determination module according to an embodiment of the present invention.
Detailed Description
The embodiment of the application provides a method and a device for determining a single-well sedimentary microphase curve.
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
FIG. 1 is a flow chart of an embodiment of a method of determining a single well depositional microphase curve of the present application. As shown in FIG. 1, the method for determining the single-well sedimentary microphase curve comprises the following steps.
Step S101: and obtaining a logging curve of each oil and gas well in the target work area, and determining sedimentary microfacies plane data of each layer in the target work area according to the logging curve characteristics of the sedimentary microfacies of the preset type and the logging curve of the oil and gas well.
The well log may include at least one of: natural potential curve, resistivity curve, natural gamma curve, time difference curve, density curve, acoustic curve, well diameter curve, neutron curve. Wherein the natural potential curve and the resistivity curve are two well logs most commonly used in daily exploration and development of an oil field.
The predetermined kind of deposited micro-phases may include at least one of: the method comprises the following steps of underwater flow distribution of main river channel microphase, underwater flow distribution of main river channel side edge microphase, sand dam microphase, flow distribution bay microphase, flow distribution chamber and front source thin layer sand microphase.
The destination work area may be divided into a plurality of horizons in a direction perpendicular to the ground surface. And a certain stratum thickness exists between two adjacent layers in the target work area. For example, fig. 2 is a schematic vertical cross-sectional view of a target work area division in the embodiment of the present application. As shown in fig. 2, the destination work area may be divided into level 1, level 2, level 3, and level 4 in a direction perpendicular to the ground surface. Wherein, a certain stratum thickness exists between two adjacent layers, for example, a thickness d exists between a layer 1 and a layer 2.
Through the mode of geophysical logging, can acquire the log curve of every oil gas well in the purpose workplace. And according to the logging curve of the oil-gas well, the logging curve information of the drilling area of the first layer position in the target work area can be determined. The well logging information of each region of the first layer in the target work area may include: and the well logging curve information of the well drilling area of the first layer in the target work area and the well logging curve information of the non-well drilling area of the first layer in the target work area. The undrilled region of the first horizon may represent a region of the first horizon that does not contain hydrocarbon wells. The drilling area of the first horizon may represent an area of the first horizon containing hydrocarbon wells. The first horizon may be any one of a plurality of horizons in the destination work area. The well log information may include: a log characteristic and a parameter value of the log. The log features may represent a profile of the log. And determining sedimentary microfacies plane data of the first layer in the target work area according to the logging curve characteristics of the preset types of sedimentary microfacies and the logging curve information of each area of the first layer in the target work area. The sedimentary microphase plane data of the first horizon in the target work area may include: and depositing microphase types in each area of the first layer in the target work area.
And determining the logging curve information of each region of the first layer in the target work area according to the logging curve of the oil-gas well. Specifically, according to the logging curve of the oil-gas well, the logging curve information of the drilling area of the first layer position in the target work area can be determined. Based on the log information of the well drilling region of the first horizon in the target work area, the log information of the non-well drilling region of the first horizon in the target work area can be determined.
Further, the determining the log information of the non-drilled region of the first horizon in the target work area based on the log information of the drilled region of the first horizon in the target work area may include: based on the logging curve information of the well drilling area of the first layer position in the target work area, the logging curve information of the non-well drilling area of the first layer position can be obtained in an inverse distance weighting mode.
In an embodiment, the sedimentary microfacies plane data of the first horizon in the target work area is determined according to the logging curve characteristics of the sedimentary microfacies of the preset type and the logging curve information of each region of the first horizon in the target work area. Specifically, when the similarity between the logging curve feature in the logging curve information of the first region of the first horizon and the logging curve feature of one type of depositional microfacies type in the preset types of depositional microfacies reaches a preset similarity threshold, the type of depositional microfacies in the preset types of depositional microfacies may be used as the depositional microfacies type of the first region. Wherein the first region may be any region of the first horizon. The preset similarity threshold may be 80% to 100%.
In another embodiment, the sedimentary microfacies plane data of the first horizon in the target work area is determined according to the logging curve characteristics of the sedimentary microfacies of the preset type and the logging curve information of each area of the first horizon in the target work area. Specifically, the sedimentary microfacies type of the well drilling area of the first layer in the target work area can be determined according to the well logging curve characteristics of the sedimentary microfacies of the preset type and the well logging curve information of the well drilling area of the first layer in the target work area. And determining the sedimentary microfacies type of the non-drilled area of the first layer in the target work area according to the logging curve characteristics of the sedimentary microfacies of the preset type and the logging curve information of the non-drilled area of the first layer in the target work area.
Step S102: and acquiring well deviation data of the oil and gas well, and determining the three-dimensional sedimentary microfacies data volume of the target work area based on the sedimentary microfacies plane data and the well deviation data.
The three-dimensional sedimentary microphase data volume can be a data volume formed by sedimentary microphase plane data with certain stratum thickness. Well deviation data may be acquired for the oil and gas well. The well deviation data may include: the inclination, azimuth and depth of each well section in the oil and gas well. And calculating the thickness of the stratum between two adjacent layers in the multiple layers of the target work area according to the well deviation data. Based on the formation thickness and the depositional microphase plane data, a three-dimensional depositional microphase data volume of the target work area may be determined.
And further, calculating the thickness of the stratum between two adjacent layers in the multiple layers of the target work area according to the well deviation data. Specifically, the vertical depth of each well section in the oil and gas well can be calculated according to the well deviation angle, the azimuth angle and the depth of each well section in the well deviation data. The vertical depth of the drilling position of each horizon in the oil and gas well can be determined according to the vertical depth of each well section in the oil and gas well. And subtracting vertical depths of drilling positions of two adjacent layers in the oil-gas well to obtain the thickness of the stratum between the two adjacent layers in the multiple layers of the target work area.
Further, the three-dimensional sedimentary microphase data volume of the target work area is determined based on the formation thickness and sedimentary microphase plane data, and specifically, the sedimentary microphase plane data may be subjected to numerical processing to obtain a two-dimensional sedimentary microphase data volume of each horizon in the target work area. Further, the numerical processing may be to replace the sedimentary microfacies type of a region in the sedimentary microfacies plane data with a corresponding numerical value. Different deposited microphase types may correspond to different values. For example, if the sedimentary microfacies type of an area in the sedimentary microfacies plane data is the underwater diversion main channel microfacies, the sedimentary microfacies data of the area can be represented by a value of 1. Similarly, if the sedimentary microphase type of the region is the lateral microphase of the underwater diversion main channel, the sedimentary microphase data of the region can be represented by a value 2. If the sedimentary microphase type of the region is the dam microphase, the sedimentary microphase data of the region may be represented by a value of 3. If the sedimentary microphase type of the region is the split bay microphase, the sedimentary microphase data for the region may be represented by a value of 4. If the sedimentary microphase type of the region is the interblow and front source thin layer sand microphase, the sedimentary microphase data of the region can be represented by a value of 5. And determining sedimentary microphase data at the position of the stratum between two adjacent layers in the target work area according to the two-dimensional sedimentary microphase data volume of each layer and the thickness of the stratum. And obtaining the three-dimensional sedimentary microfacies data volume of the target work area according to the two-dimensional sedimentary microfacies data volume of each layer and sedimentary microfacies data at the stratum position between the two adjacent layers.
Further, according to the two-dimensional sedimentary microphase data volume of each layer and the thickness of the stratum, sedimentary microphase data at a stratum position between two adjacent layers in the target work area are determined, and specifically, the second layer and the third layer are two adjacent layers in the target work area. According to the two-dimensional sedimentary microphase data volume of the second layer, the sedimentary microphase data volume of the third layer and the thickness of the stratum between the second layer and the third layer, the sedimentary microphase data of the second layer can be used as sedimentary microphase data at the position of the stratum between the second layer and the third layer. Or, after the sedimentary microphase data of the second horizon is used as the sedimentary microphase data at the stratum position between the second horizon and the third horizon, performing correction processing on the sedimentary microphase data at the stratum position between the second horizon and the third horizon according to the parameter value of the log of the drilling area between the second horizon and the third horizon. Therefore, sedimentary microphase data at the position of the stratum between the second horizon and the third horizon can be more consistent with the real situation of the stratum. For example, when the resistivity value of the drilling zone between the second horizon and the third horizon is less than 15 and the moveout value is greater than 280, the depositional microphase data for the zone may be corrected to 5.
Step 103: and determining a sedimentary microfacies curve of each oil and gas well in the target work area according to the three-dimensional sedimentary microfacies data volume of the target work area.
Specifically, the target work area may be subjected to gridding processing. The target work area after the gridding treatment may include: main survey line direction, tie survey line direction and vertical direction. The three directions are perpendicular two by two. The main survey line direction and the contact survey line direction are both parallel to the earth surface, and the vertical direction is perpendicular to the earth surface. The target work area after the gridding treatment is formed by three-dimensional grids with the same size in three directions. And determining the deposition microphase data of each grid corresponding to the target work area according to the three-dimensional deposition microphase data volume of the target work area. And according to the three-dimensional sedimentary microfacies data volume of the target work area, sedimentary microfacies data of grids passed by the first oil-gas well in the target work area after the gridding treatment can be obtained. The sedimentary microphase data of the grid through which the first hydrocarbon well passes may be taken as the sedimentary microphase curve of the first hydrocarbon well. The first oil and gas well can be any oil and gas well in the target work area.
For example, FIG. 3 is a schematic illustration of a comparison of depositional microphase curves for a certain interval in a certain hydrocarbon well, determined using the prior art and the method of the present application, respectively, in an example of the present application. The abscissa in fig. 3 represents the depth of a well section in an oil and gas well in the work area of interest in meters, and the ordinate in fig. 3 represents depositional microphase data at the depth position of the well section. As shown in fig. 3, the deposited microphase curves determined using the method of the present application are relatively close to those determined using the prior art, indicating that the accuracy of the deposited microphase curves determined using the method of the present application is not degraded.
According to the embodiment of the method for determining the single-well sedimentary microfacies curve, sedimentary microfacies plane data of each layer position in the target work area can be determined according to logging curve information of each oil and gas well in the target work area, so that the sedimentary microfacies curve of each oil and gas well in the target work area can be determined. For each well section in an oil and gas well, the sampling interval of the method is that a sampling point is generally selected at about 30-40 meters for the stratum thickness between two adjacent layers in a target work area, the sampling point is less, the workload of manual identification of geology personnel can be effectively reduced, and therefore the efficiency of determining the single-well sedimentary microfacies curve can be improved.
FIG. 4 is a block diagram of the components of an embodiment of the apparatus for determining a single well depositional microphase curve according to the present application. As shown in fig. 4, the apparatus for determining a single-well sedimentary microphase curve may include: a sedimentary microphase plane data determination module 100, a three-dimensional sedimentary microphase data volume determination module 200, and a sedimentary microphase curve determination module 300.
The sedimentary microfacies plane data determining module 100 can be used for obtaining a logging curve of each oil and gas well in a target work area, and can determine sedimentary microfacies plane data of each layer in the target work area according to the logging curve characteristics of the sedimentary microfacies of preset types and the logging curve of the oil and gas wells.
The three-dimensional sedimentary microfacies data volume determination module 200 may be configured to obtain well deviation data of the oil and gas well, and may determine a three-dimensional sedimentary microfacies data volume of the target work area based on the sedimentary microfacies planar data and the well deviation data.
The sedimentary microfacies curve determining module 300 may be configured to determine a sedimentary microfacies curve of each of the oil and gas wells in the target work area according to the three-dimensional sedimentary microfacies data volume of the target work area.
FIG. 5 is a block diagram of the sedimentary microphase plane data determination module according to an embodiment of the present invention. As shown in fig. 5, the deposition microphase plane data determination module 100 in fig. 4 includes: a log information determination module 110 and a first horizon depositional microfacies determination module 120.
The logging curve information determining module 110 may be configured to determine, according to the logging curve of the oil and gas well, logging curve information of each region of the first layer in the target work area. The logging curve information of each region of the first layer in the target work area comprises: and the well logging curve information of the well drilling area of the first layer in the target work area and the well logging curve information of the non-well drilling area of the first layer in the target work area.
The first horizon sedimentary microfacies determining module 120 may be configured to determine sedimentary microfacies plane data of a first horizon in the target work area according to the logging curve characteristics of the preset types of sedimentary microfacies and the logging curve information of each region of the first horizon in the target work area. The deposition microphase plane data of the first horizon in the target work area comprises: and depositing micro types in each area of the first layer in the target work area.
The embodiment of the device for determining the single-well sedimentary microfacies curve corresponds to the method for determining the single-well sedimentary microfacies curve, so that the embodiment of the method can be realized, and the technical effect of the embodiment of the method can be obtained.
In the 90 s of the 20 th century, improvements in a technology could clearly distinguish between improvements in hardware (e.g., improvements in circuit structures such as diodes, transistors, switches, etc.) and improvements in software (improvements in process flow). However, as technology advances, many of today's process flow improvements have been seen as direct improvements in hardware circuit architecture. Designers almost always obtain the corresponding hardware circuit structure by programming an improved method flow into the hardware circuit. Thus, it cannot be said that an improvement in the process flow cannot be realized by hardware physical modules. For example, a Programmable Logic Device (PLD), such as a Field Programmable Gate Array (FPGA), is an integrated circuit whose Logic functions are determined by programming the Device by a user. A digital system is "integrated" on a PLD by the designer's own programming without requiring the chip manufacturer to design and fabricate a dedicated integrated circuit chip 2. Furthermore, nowadays, instead of manually making an integrated Circuit chip, such Programming is often implemented by "logic compiler" software, which is similar to a software compiler used in program development and writing, but the original code before compiling is also written by a specific Programming Language, which is called Hardware Description Language (HDL), and HDL is not only one but many, such as abel (advanced Boolean Expression Language), ahdl (alternate Language Description Language), traffic, pl (core unified Programming Language), HDCal, JHDL (Java Hardware Description Language), langue, Lola, HDL, laspam, hardsradware (Hardware Description Language), vhjhd (Hardware Description Language), and vhigh-Language, which are currently used in most popular applications. It will also be apparent to those skilled in the art that hardware circuitry that implements the logical method flows can be readily obtained by merely slightly programming the method flows into an integrated circuit using the hardware description languages described above.
The controller may be implemented in any suitable manner, for example, the controller may take the form of, for example, a microprocessor or processor and a computer-readable medium storing computer-readable program code (e.g., software or firmware) executable by the (micro) processor, logic gates, switches, an Application Specific Integrated Circuit (ASIC), a programmable logic controller, and an embedded microcontroller, examples of which include, but are not limited to, the following microcontrollers: ARC 625D, Atmel AT91SAM, Microchip PIC18F26K20, and Silicone Labs C8051F320, the memory controller may also be implemented as part of the control logic for the memory.
Those skilled in the art will also appreciate that, in addition to implementing the controller as pure computer readable program code, the same functionality can be implemented by logically programming method steps such that the controller is in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers and the like. Such a controller may thus be considered a hardware component, and the means included therein for performing the various functions may also be considered as a structure within the hardware component. Or even means for performing the functions may be regarded as being both a software module for performing the method and a structure within a hardware component.
The systems, devices, modules or units illustrated in the above embodiments may be implemented by a computer chip or an entity, or by a product with certain functions.
For convenience of description, the above devices are described as being divided into various units by function, and are described separately. Of course, the functionality of the units may be implemented in one or more software and/or hardware when implementing the present application.
From the above description of the embodiments, it is clear to those skilled in the art that the present application can be implemented by software plus necessary general hardware platform. With this understanding in mind, the present solution, or portions thereof that contribute to the prior art, may be embodied in the form of a software product, which in a typical configuration includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory. The computer software product may include instructions for causing a computing device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in the various embodiments or portions of embodiments of the present application. The computer software product may be stored in a memory, which may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium. Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include transitory computer readable media (transient media), such as modulated data signals and carrier waves.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The application is operational with numerous general purpose or special purpose computing system environments or configurations. For example: personal computers, server computers, hand-held or portable devices, tablet-type devices, multiprocessor systems, microprocessor-based systems, set top boxes, programmable consumer electronics, network PCs, minicomputers, mainframe computers, distributed computing environments that include any of the above systems or devices, and the like.
The application may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. The application may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote computer storage media including memory storage devices.
While the present application has been described with examples, those of ordinary skill in the art will appreciate that there are numerous variations and permutations of the present application without departing from the spirit of the application, and it is intended that the appended claims encompass such variations and permutations without departing from the spirit of the application.
Claims (13)
1. A method of determining a single-well depositional microphase curve, comprising:
obtaining a logging curve of each oil and gas well in a target work area, and determining sedimentary microfacies plane data of each layer in the target work area according to the logging curve characteristics of the sedimentary microfacies of preset types and the logging curve of the oil and gas wells;
acquiring well deviation data of the oil and gas well, and calculating the stratum thickness between two adjacent layers in the multiple layers of the target work area according to the well deviation data; performing numerical processing on the deposition microphase plane data to obtain a two-dimensional deposition microphase data volume of each layer in the target work area; determining sedimentary microphase data at a stratum position between two adjacent layers in the target work area according to the two-dimensional sedimentary microphase data volume of each layer and the stratum thickness; obtaining a three-dimensional sedimentary microfacies data volume of the target work area according to the two-dimensional sedimentary microfacies data volume of each layer and sedimentary microfacies data at the stratum position between the two adjacent layers;
and determining a sedimentary microfacies curve of each oil and gas well in the target work area according to the three-dimensional sedimentary microfacies data volume of the target work area.
2. The method for determining the sedimentary microfacies curve of the single well as the claim 1, wherein the determining the sedimentary microfacies plane data of each horizon in the target work area according to the log characteristics of the sedimentary microfacies of the preset category and the log of the oil and gas well comprises:
determining logging curve information of each region of a first layer in the target work area according to the logging curve of the oil-gas well; the logging curve information of each region of the first layer in the target work area comprises: logging curve information of a drilling area of a first layer in the target work area and logging curve information of an un-drilling area of the first layer in the target work area;
determining sedimentary microfacies plane data of a first layer in the target work area according to the logging curve characteristics of the preset types of sedimentary microfacies and the logging curve information of each area of the first layer in the target work area; the deposition microphase plane data of the first horizon in the target work area comprises: and depositing micro types in each area of the first layer in the target work area.
3. The method for determining the single-well sedimentary microphase curve according to claim 2, wherein the determining the well log information of each area of the first horizon in the target work area according to the well log of the oil and gas well comprises:
determining logging curve information of a drilling area of a first layer in the target work area according to the logging curve of the oil-gas well;
and determining the logging curve information of the non-drilling area of the first layer in the target work area based on the logging curve information of the drilling area of the first layer in the target work area.
4. The method of claim 3, wherein determining log information for an undrilled region of the first horizon in the work area of interest based on the log information for the drilled region of the first horizon in the work area of interest comprises: and obtaining the logging curve information of the non-drilling area of the first layer position by adopting a reverse distance weighting mode based on the logging curve information of the drilling area of the first layer position in the target work area.
5. The method for determining the single-well sedimentary microfacies curve according to claim 2, wherein the determining the sedimentary microfacies plane data of the first horizon in the target work area according to the log curve characteristics of the sedimentary microfacies of the preset type and the log curve information of each area of the first horizon in the target work area comprises: when the similarity between the logging curve feature in the logging curve information of the first area of the first horizon and the logging curve feature of one type of sedimentary microfacies type in the preset type of sedimentary microfacies reaches a preset similarity threshold, taking the type of sedimentary microfacies type in the preset type of sedimentary microfacies as the sedimentary microfacies type of the first area; the first region is any region of the first horizon.
6. The method for determining the single-well sedimentary microfacies curve according to claim 2, wherein the determining the sedimentary microfacies plane data of the first horizon in the target work area according to the log curve characteristics of the sedimentary microfacies of the preset type and the log curve information of each area of the first horizon in the target work area comprises:
determining the sedimentary microfacies type of the well drilling area of the first layer in the target work area according to the well logging curve characteristics of the sedimentary microfacies of the preset type and the well logging curve information of the well drilling area of the first layer in the target work area;
and determining the sedimentary microfacies type of the non-drilled area of the first layer in the target work area according to the logging curve characteristics of the sedimentary microfacies of the preset type and the logging curve information of the non-drilled area of the first layer in the target work area.
7. The method of claim 2, wherein the well log information comprises: a log characteristic and a parameter value of the log.
8. The method of claim 1, wherein the log comprises at least one of: natural potential curve, resistivity curve, natural gamma curve, time difference curve, density curve, acoustic curve, well diameter curve, neutron curve.
9. The method for determining the sedimentary microphase curve of the single well according to the claim 1, wherein the determining the sedimentary microphase curve of each oil and gas well in the objective work area according to the three-dimensional sedimentary microphase data body of the objective work area comprises:
carrying out gridding treatment on the target work area;
acquiring deposition microphase data of a grid through which a first oil-gas well in the target work area passes after the gridding treatment according to the three-dimensional deposition microphase data volume of the target work area;
and taking the sedimentary microphase data of the grid penetrated by the first oil and gas well as a sedimentary microphase curve of the first oil and gas well.
10. The method of claim 1, wherein the predetermined depositional microphases comprise at least one of: the method comprises the following steps of underwater flow distribution of main river channel microphase, underwater flow distribution of main river channel side edge microphase, sand dam microphase, flow distribution bay microphase, flow distribution chamber and front source thin layer sand microphase.
11. The method of determining a single well depositional microphase curve of claim 1, wherein the well deviation data comprises: the inclination, azimuth and depth of each well section in the oil and gas well.
12. An apparatus for determining a single well depositional microphase curve, the apparatus comprising: the device comprises a deposition microphase plane data determining module, a three-dimensional deposition microphase data volume determining module and a deposition microphase curve determining module; wherein,
the sedimentary microfacies plane data determining module is used for acquiring a logging curve of each oil and gas well in a target work area and determining sedimentary microfacies plane data of each layer in the target work area according to the logging curve characteristics of the sedimentary microfacies of preset types and the logging curve of the oil and gas wells;
the three-dimensional sedimentary microfacies data volume determining module is used for acquiring well deviation data of the oil and gas well and determining a three-dimensional sedimentary microfacies data volume of the target work area based on the sedimentary microfacies plane data and the well deviation data; the three-dimensional sedimentary microfacies data volume determining module is used for calculating the thickness of the stratum between two adjacent layers in a plurality of layers of the target work area according to the well deviation data, carrying out numerical processing on sedimentary microfacies plane data to obtain a two-dimensional sedimentary microfacies data volume of each layer in the target work area, determining sedimentary microfacies data at the position of the stratum between two adjacent layers in the target work area according to the two-dimensional sedimentary microfacies data volume of each layer and the thickness of the stratum, and obtaining the three-dimensional sedimentary microfacies data volume of the target work area according to the two-dimensional sedimentary microfacies data volume of each layer and the sedimentary microfacies data at the position of the stratum between two adjacent layers;
and the sedimentary microfacies curve determining module is used for determining the sedimentary microfacies curve of each oil and gas well in the target work area according to the three-dimensional sedimentary microfacies data volume of the target work area.
13. The apparatus of claim 12, wherein the sedimentary microphase plane data determination module comprises: the device comprises a logging curve information determining module and a first horizon deposition microphase determining module; wherein,
the logging curve information determining module is used for determining logging curve information of each region of a first layer in the target work area according to the logging curve of the oil-gas well; the logging curve information of each region of the first layer in the target work area comprises: logging curve information of a drilling area of a first layer in the target work area and logging curve information of an un-drilling area of the first layer in the target work area;
the first horizon sedimentary microfacies determining module is used for determining sedimentary microfacies plane data of a first horizon in the target work area according to the logging curve characteristics of the preset types of sedimentary microfacies and the logging curve information of each area of the first horizon in the target work area; the deposition microphase plane data of the first horizon in the target work area comprises: and depositing micro types in each area of the first layer in the target work area.
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