CN219327531U - Improved single well yield measuring device - Google Patents
Improved single well yield measuring device Download PDFInfo
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- CN219327531U CN219327531U CN202320296392.5U CN202320296392U CN219327531U CN 219327531 U CN219327531 U CN 219327531U CN 202320296392 U CN202320296392 U CN 202320296392U CN 219327531 U CN219327531 U CN 219327531U
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Abstract
The utility model relates to the field of single well yield measurement, in particular to an improved single well yield measurement device which comprises two measuring cylinders vertically arranged in an oil storage tank, one ends of the measuring cylinders extend out of the oil storage tank, one ends of the measuring cylinders extending into the oil storage tank are fixedly connected with the bottom of the oil storage tank, and communication holes communicated with the inner area of the oil storage tank are formed in the peripheral surface of one end of each measuring cylinder fixedly connected with the oil storage tank; a stratum water floater which is arranged on the stratum water level in a floating way and is used for measuring the stratum water level height is arranged in one measuring cylinder in a matching way; the utility model has simple structure and convenient use, the crude oil floats and the stratum water floats respectively arranged in the two measuring cylinders are respectively connected with the slide rheostat, and the numerical values displayed by the voltmeter can be intuitively read to obtain the corresponding crude oil liquid level height and stratum water height, so that the measurement is accurate, convenient, time-saving and labor-saving.
Description
Technical Field
The utility model relates to the field of single well yield measurement, in particular to an improved single well yield measurement device.
Background
The conventional single well yield measuring device for the oil field is prolonged, generally a cuboid oil storage tank is used for storing produced liquid, crude oil and stratum water are mainly contained in the produced liquid of the oil well, and oil-water separation is realized by adopting a heating rod or a tank bottom heating mode; the depth of liquid in the tube was measured manually with a long rod, and the readout was measured with a steel ruler, based on the tank bottom area (typically 13.5m 2 ) Calculating the volume by combining the liquid depth; when the produced liquid enters the tank, a small amount of liquid sample is taken, and the volumetric water content f is measured by heating the beaker w . Based on the volume V of the liquid, the water content f is calculated w Calculating the volume of crude oil and formation water in the produced fluid;
volume of crude oil: v (V) o =V*(1-f w )
Formation water volume: v (V) w =V*f w
Wherein:
v: liquid volume in tank, m 3 ；
V o : volume of crude oil in storage tank, m 3 ；
V w : formation water volume in storage tank, m 3 ；
f w : the volume measured contains water, decimal;
the problems are that: 1. the liquid depth in the storage tank is measured manually, so that the error is large, and time and labor are wasted; 2. the water content is measured and calculated by heating the sampling beaker at the tank inlet, the sampling randomness is large, the water content condition of the liquid produced all day can not be represented, and the error is large.
Disclosure of Invention
In order to solve the problems, the utility model provides an improved single well yield measuring device which reflects the liquid level position through different readings of a voltmeter, can directly mark the height value on the voltmeter relative to different voltage values, and is visual and accurate.
The utility model relates to an improved single-well yield measuring device which comprises two measuring cylinders which are vertically arranged in an oil storage tank, one ends of the measuring cylinders extend out of the oil storage tank, one ends of the measuring cylinders extending into the oil storage tank are fixedly connected with the bottom of the oil storage tank, and communication holes communicated with the inner area of the oil storage tank are formed in the peripheral surface of one end of each measuring cylinder fixedly connected with the oil storage tank;
one measuring cylinder is internally provided with a formation water floater which is arranged on the formation water liquid surface in a floating way and is used for measuring the formation water surface height, the other measuring cylinder is internally provided with a crude oil floater which is arranged on the crude oil liquid surface in a floating way and is used for measuring the crude oil liquid surface height, the crude oil floater is connected with a crude oil liquid surface height display device through a first connecting rod, and the formation water floater is connected with the formation water liquid surface height display device through a second connecting rod;
the crude oil liquid level display device and the stratum water liquid level display device comprise sliding varistors connected with a first connecting rod or a second connecting rod, the first connecting rod and the second connecting rod are connected with sliding sheets on the sliding varistors, a switch, an ammeter, a fixed value resistor and a power supply are sequentially connected in series on the sliding varistors to form a loop, and the voltmeter is connected in parallel at two ends of the sliding varistors to measure the voltage change of the sliding varistors.
When the crude oil floater or the stratum water floater is positioned at the bottom of the oil storage tank, the liquid level of the crude oil or the stratum water is 0 m, and all the sliding varistors connected with the crude oil floater or the stratum water floater are connected into a circuit;
when the crude oil floater or the stratum water floater is positioned at the top of the oil storage tank, the crude oil liquid level or the stratum water liquid level is the maximum height inside the oil storage tank, and a sliding rheostat connected with the crude oil floater or the stratum water floater is not connected with an electric circuit.
Preferably, the crude oil float has a density of 0.3g/cm 3 -0.7 g/cm 3 。
Preferably, the formation water float has a density of 0.92g/cm 3 -0.98g/cm 3 。
Preferably, both the crude oil float and the formation water float are disc-shaped.
Preferably, the sliding rheostat has a resistance value variation range of 0-300 omega, a resistance value of a fixed-value resistor of 60 omega, a measuring range of an ammeter of 0-0.6A and a measuring range of a voltmeter of 0-36V.
Preferably, the measuring cylinders are stainless steel round pipes with the inner diameter of 10cm, and the wall thickness of the measuring cylinders is 2.5-3.5mm.
Preferably, the switch, the ammeter, the voltmeter, the power supply and the constant resistor are fixedly arranged on the outer surface of the oil storage tank.
Preferably, the distance between the communication hole and the bottom of the oil storage tank is 5mm.
The utility model has simple structure and convenient use, the crude oil floats and the stratum water floats respectively arranged in the two measuring cylinders are respectively connected with the slide rheostat, and the numerical values displayed by the voltmeter can be intuitively read to obtain the corresponding crude oil liquid level height and stratum water height, so that the measurement is accurate, convenient, time-saving and labor-saving.
After the data of the utility model is transmitted to the corresponding processing software of the microcomputer, parameters such as crude oil volume, crude oil mass, stratum water volume, stratum water mass, volume water content, weight water content and the like in the oil storage tank can be directly displayed through a screen.
Drawings
FIG. 1 is a schematic diagram of the connection between a formation water level display and a formation water float.
FIG. 2 is a schematic diagram of the connection between a crude oil level display device and a crude oil float.
Detailed Description
The utility model relates to an improved single-well yield measuring device which comprises two measuring cylinders which are vertically arranged in an oil storage tank, one ends of the measuring cylinders extend out of the oil storage tank, one ends of the measuring cylinders extending into the oil storage tank are fixedly connected with the bottom of the oil storage tank, and communication holes communicated with the inner area of the oil storage tank are formed in the peripheral surface of one end of each measuring cylinder fixedly connected with the oil storage tank;
one measuring cylinder is internally provided with a formation water floater which is arranged on the formation water liquid surface in a floating way and is used for measuring the formation water surface height, the other measuring cylinder is internally provided with a crude oil floater which is arranged on the crude oil liquid surface in a floating way and is used for measuring the crude oil liquid surface height, the crude oil floater is connected with a crude oil liquid surface height display device through a first connecting rod, and the formation water floater is connected with the formation water liquid surface height display device through a second connecting rod;
the crude oil liquid level display device and the stratum water liquid level display device both comprise sliding varistors connected with a first connecting rod or a second connecting rod, the first connecting rod and the second connecting rod are both connected with sliding sheets on the sliding varistors, a switch, an ammeter, a fixed value resistor and a power supply are sequentially connected in series on the sliding varistors to form a loop, and the voltmeter is connected in parallel at two ends of the sliding varistors to measure the voltage change of the sliding varistors;
when the crude oil floater or the stratum water floater is positioned at the bottom of the oil storage tank, the liquid level of the crude oil or the stratum water is 0 m, and all the sliding varistors connected with the crude oil floater or the stratum water floater are connected into a circuit;
when the crude oil floater or the stratum water floater is positioned at the top of the oil storage tank, the crude oil liquid level or the stratum water liquid level is the maximum height inside the oil storage tank, and a sliding rheostat connected with the crude oil floater or the stratum water floater is not connected with an electric circuit.
The density of the crude oil float was 0.3g/cm 3 -0.7 g/cm 3 。
The density of the stratum water floater is 0.92g/cm 3 -0.98g/cm 3 。
Both the crude oil floater and the stratum water floater are disc-shaped.
The range of the resistance change of the sliding rheostat is 0-300 omega, the resistance of the fixed-value resistor is 60 omega, the range of the ammeter is 0-0.6A, and the range of the voltmeter is 0-36V.
The measuring cylinders are stainless steel round pipes with the inner diameter of 10cm, and the wall thickness of the measuring cylinders is 2.5-3.5mm.
The switch, the ammeter, the voltmeter, the power supply and the constant value resistor are all fixedly arranged on the outer surface of the oil storage tank.
The distance between the communicating hole and the bottom of the oil storage tank is 5mm.
According to the principle of a U-shaped tube, two stainless steel round tubes with the inner diameter of 10cm are additionally arranged in an oil storage tank to serve as measuring cylinders, the inner surfaces are required to be smooth and burr-free, the wall thickness of the measuring cylinders is 2.5-3.5mm, the measuring error caused by the built-in round tubes is reduced, a communication hole for communicating the oil storage tank is formed in the bottom of each measuring cylinder, a circular cover is additionally arranged at one end of each measuring cylinder extending out of the oil storage tank, a small opening is formed in each measuring cylinder, and the diameter of each small opening is matched with that of a first connecting rod or a second connecting rod; one measuring tube is used for monitoring the water level of the stratum in the storage tank, and one measuring tube is used for monitoring the liquid level of crude oil in the storage tank.
Prolonging the crude oil density of the oil field to be 0.81 g/cm 3 To 0.87. 0.87 g/cm 3 Between them, a density of 0.3g/cm is adopted 3 To 0.7. 0.7 g/cm 3 The material is made into a disc-shaped crude oil floater, for example, the disc-shaped crude oil floater is made of foamed plastics and fir wood, and is used for monitoring the liquid level of crude oil, and the liquid level comprises the level of the water of the lower stratum.
Prolonging the water density of the oil field stratum to be 1.01g/cm 3 To 1.1g/cm 3 Between them, the density is 0.92g/cm 3 To 0.98g/cm 3 The material in between is made into a disc-shaped float, for example, the disc-shaped float is made of pure rubber and high-density polyethylene, so that the disc-shaped float can float on the surface in formation water, and can sink in crude oil, and is used for monitoring the height of the formation water surface.
The crude oil floater and the stratum water floater are respectively connected with a slide sheet P of the slide rheostat, as shown in fig. 1 and 2, the power supply voltage is 36V, R is the slide rheostat, the resistance value change range is 0-300 omega, R 0 The resistance is 60 omega, the measuring range of the ammeter is 0-0.6A, and the measuring range of the voltmeter is 0-36V. The water level of the stratum in the measuring cylinder and the liquid level of the crude oil are respectively reflected by the indication numbers of the voltmeter of the corresponding connected circuit, when the liquid level is 0 m, the stratum water floater or the crude oil floater is at the bottommost part, the sliding vane P is at the uppermost end, the sliding rheostat is connected in all, and the numerical value of the voltmeter is the maximum value and is 30V; when the stratum water floater or the crude oil floater is at the maximum height, the maximum height in the on-site common oil storage tank is 2.5m, the sliding vane P is at the bottommost end, the sliding rheostat is not connected at the moment, and the voltage of the measuring wire of the voltmeter is 0V. The crude oil floater or the stratum water floater is at different liquid levels, the sliding sheet P is at different positions of the sliding rheostat, and the voltmeter shows different readings. The two circuits are integrally arranged on the outer wall of the oil storage tank.
The microcomputer is directly arranged on the outer side of the tank body, the data line is used for reflecting the water level of the stratum and the liquid level of the crude oil, the liquid level of the crude oil comprises the reading of the water level of the stratum at the lower layer, the reading is transmitted to the built-in software, the parameters such as the inner bottom area of the storage tank, the density of the crude oil, the density of the stratum and the like are preset through the corresponding software, and the parameters such as the volume of the crude oil, the mass of the crude oil, the volume of the stratum water, the mass of the stratum water, the volume water content, the weight water content and the like in the oil storage tank are directly displayed through the screen.
The system can also respectively reflect the stratum water surface height and the crude oil liquid surface height through remote connection, wherein the crude oil liquid surface height comprises readings of the lower stratum water height and is transmitted to a computer of a well site duty room, and can also be transmitted to a computer of a production operation duty room of an oil extraction factory, parameters such as the bottom area in a storage tank, the crude oil density, the stratum water density and the like are preset through corresponding software, and parameters such as the crude oil volume, the crude oil quality, the stratum water volume, the stratum water quality, the volume water content, the weight water content and the like in an oil storage tank are directly displayed through software. One computer can receive the data transmission of a plurality of oil storage tanks, thereby realizing the purpose of mastering the actual production condition without going home
Description of measurement process: the circuit for measuring the water level of the stratum and the position of the stratum water floater and the position of the sliding vane are shown in the figure 1, at the moment, the sliding vane P is positioned at the middle position of the sliding rheostat, at the moment, the resistance value of the sliding rheostat connected into the circuit is 150 omega, the current in the circuit is 36V divided by 210 omega, the current representing number is 0.171A, the voltage representing number is 25.714V, and the corresponding water level of the stratum is 1.25m;
the liquid level of the crude oil, the position of the crude oil floater and the position of the sliding vane P are measured as shown in figure 2, at the moment, the sliding vane P is positioned at the position which is 1/8 of the distance from the bottommost end, at the moment, the resistance value of the sliding rheostat connected to the circuit is 37.5 omega, the current indicating number is 0.369A, the voltage indicating number is 13.846V, and the liquid level of the crude oil corresponds to the liquid level of the crude oil, wherein the liquid level of the crude oil comprises 1.964m of the liquid level of the formation water in the next step; assume that the bottom area of the storage tank is preset to be 13.5m in microcomputer software 2 Crude oil density of 0.85 g/cm 3 The density of the stratum water is 1.05 g/cm 3 At this time, the microcomputer screen displays: the volume of the formation water is 16.875 square, and the mass of the formation water is 17.719 tons; the volume of the crude oil is 9.639 square, and the mass of the crude oil is 8.193 tons; the volume water content is 63.646%,the water content by weight was 68.381%.
Claims (8)
1. An improved single-well yield measuring device comprises two measuring cylinders which are vertically arranged in an oil storage tank and one ends of which extend out of the oil storage tank, and is characterized in that one ends of the measuring cylinders extending into the oil storage tank are fixedly connected with the bottom of the oil storage tank, and communication holes communicated with the inner area of the oil storage tank are formed in the peripheral surface of one end of each measuring cylinder fixedly connected with the oil storage tank;
one measuring cylinder is internally provided with a formation water floater which is arranged on the formation water liquid surface in a floating way and is used for measuring the formation water surface height, the other measuring cylinder is internally provided with a crude oil floater which is arranged on the crude oil liquid surface in a floating way and is used for measuring the crude oil liquid surface height, the crude oil floater is connected with a crude oil liquid surface height display device through a first connecting rod, and the formation water floater is connected with the formation water liquid surface height display device through a second connecting rod;
the crude oil liquid level display device and the stratum water liquid level display device both comprise slide varistors connected with a first connecting rod or a second connecting rod, the first connecting rod and the second connecting rod are both connected with sliding sheets on the slide varistors, a switch, an ammeter, a fixed value resistor and a power supply form a loop in sequence on the slide varistors, and the voltmeter is connected in parallel at two ends of the slide varistors to measure the voltage change of the slide varistors;
when the crude oil floater or the stratum water floater is positioned at the bottom of the oil storage tank, the liquid level of the crude oil or the stratum water is 0 m, and all the sliding varistors connected with the crude oil floater or the stratum water floater are connected into a circuit;
when the crude oil floater or the stratum water floater is positioned at the top of the oil storage tank, the crude oil liquid level or the stratum water liquid level is the maximum height inside the oil storage tank, and a sliding rheostat connected with the crude oil floater or the stratum water floater is not connected with an electric circuit.
2. An improved single well production measurement device as described in claim 1 wherein said crude oil float has a density of 0.3g/cm 3 -0.7 g/cm 3 。
3. An improved single well production measurement device as described in claim 2 wherein said formation water float has a density of 0.92g/cm 3 -0.98g/cm 3 。
4. An improved single well production measurement device as described in claim 3 wherein said crude oil float and formation water float are both disc-shaped.
5. The improved single well production measuring device of claim 4, wherein the sliding rheostat has a resistance value ranging from 0 to 300 Ω, a fixed resistor has a resistance value of 60 Ω, an ammeter has a range of 0 to 0.6A, and a voltmeter has a range of 0 to 36V.
6. An improved single well production measurement device as described in claim 5 wherein said cartridges are all 10cm inside diameter stainless steel tubes with wall thicknesses of 2.5-3.5mm.
7. The improved single well production measurement device of claim 6 wherein the switch, ammeter, voltmeter, power supply and fixed resistor are fixedly disposed on the exterior surface of the tank.
8. An improved single well production measurement device as described in claim 7 wherein said communication hole is located 5mm from the bottom of the tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320296392.5U CN219327531U (en) | 2023-02-23 | 2023-02-23 | Improved single well yield measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320296392.5U CN219327531U (en) | 2023-02-23 | 2023-02-23 | Improved single well yield measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN219327531U true CN219327531U (en) | 2023-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320296392.5U Active CN219327531U (en) | 2023-02-23 | 2023-02-23 | Improved single well yield measuring device |
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