CN108316912A - A kind of oil field individual well metering device and metering method - Google Patents
A kind of oil field individual well metering device and metering method Download PDFInfo
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- CN108316912A CN108316912A CN201711324340.XA CN201711324340A CN108316912A CN 108316912 A CN108316912 A CN 108316912A CN 201711324340 A CN201711324340 A CN 201711324340A CN 108316912 A CN108316912 A CN 108316912A
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 165
- 238000004140 cleaning Methods 0.000 claims abstract description 75
- 238000004146 energy storage Methods 0.000 claims abstract description 56
- 238000005303 weighing Methods 0.000 claims abstract description 33
- 239000007789 gas Substances 0.000 claims description 104
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 21
- 239000003345 natural gas Substances 0.000 claims description 11
- 238000003860 storage Methods 0.000 claims description 10
- 239000003921 oil Substances 0.000 description 64
- 239000000243 solution Substances 0.000 description 28
- 238000004519 manufacturing process Methods 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 230000008859 change Effects 0.000 description 7
- 238000005259 measurement Methods 0.000 description 7
- 239000003129 oil well Substances 0.000 description 6
- 239000010779 crude oil Substances 0.000 description 5
- 230000005484 gravity Effects 0.000 description 5
- 238000001556 precipitation Methods 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 241001269238 Data Species 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000006210 lotion Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
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- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Cleaning In General (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
A kind of oil field individual well metering device of the application offer and metering method.Described device includes：Interconnected measuring tank and energy storage tank, the gas of preset pressure is stored in the energy storage tank, the measuring tank is equipped with inlet pipe, liquid level gauge, outlet tube road, Weighing module, and the inlet pipe is equipped with inlet valve, and the outlet tube road is equipped with control of export valve；The piston for cleaning the measuring tank is additionally provided with inside the measuring tank, the metering pot bottom is connected with cleaning device, and the cleaning device into the measuring tank for injecting cleaning solution.It is simple in structure using each embodiment in the application, it is easy to operate, oil field individual well metering is realized in the case of not needing additionaling power, improves the accuracy of one-well metering result.
Description
Technical field
The application belongs to oilfield exploitation technical field more particularly to a kind of oil field individual well metering device and metering method.
Background technology
The liquid outlet quantity of individual well is the basic data of oil field development, be development plan design, ground engineering construction it is important according to
According to.With the rolling development in oil field, oil well measurement difficulty is increasing, the need of the explication de texte and cost efficiency that produce in addition
It wants, the requirement to one-well metering technology is also improving.Traditional metering method has not adapted to each individual well in oilfield process
Liquid output, gas production change production requirement greatly, and are difficult to realize the requirement of accurate measurement in wider measures range.
In the prior art, the one-well metering method that oil field uses mainly has glass tube oil gauge, individual well elevated tank amount oil, tipping bucket
Oil, build-up of fluid method, power graph method etc. are measured, but since respective technical principle is more or less by the shadow of certain factors and condition
It rings, the measuring accuracy of oil product cannot ensure, be difficult to effectively solve particularly with the accurate measurement problem of viscous crude.Glass tube oil gauge by
It is low in viscous crude oil-gas ratio, gas production is few, hydraulic fluid face is relatively difficult, and tank strapper is caused to be difficult to carry out.Individual well elevated tank strapping
Since viscous crude is also easy to produce foam during heating, the liquid level in elevated tank, which is affected by temperature, to be changed greatly, and measurement error is larger.
Tipping bucket amount oil is due to viscosity of thickened oil height, and wall built-up is serious, and measuring accuracy is affected.When build-up of fluid method and the power graph method amount of progress oil
It needs a large amount of oil well production data, the operating mode of oil well to be in continually changing state, and more by underground working influence factor, makes
It is larger at measurement error.
Therefore, there is an urgent need for a kind of technical solutions that can improve one-well metering precision in the industry.
Invention content
The application is designed to provide a kind of oil field individual well metering device and metering method, utilizes measuring tank, energy storage tank etc.
Structure, without additionaling power in the case of realize oil field individual well metering, improve oil field individual well metering precision.
On the one hand, this application provides a kind of oil field individual well metering devices, including：
Interconnected measuring tank and energy storage tank stores the gas of preset pressure, the measuring tank in the energy storage tank
It is equipped with inlet pipe, liquid level gauge, outlet tube road, Weighing module, the inlet pipe is equipped with inlet valve, the outlet tube
Road is equipped with control of export valve；
The piston for cleaning the measuring tank is additionally provided with inside the measuring tank, the metering pot bottom is connected with cleaning
Device, the cleaning device into the measuring tank for injecting cleaning solution；
The liquid level gauge is used to measure the volume of liquid in the measuring tank, and the Weighing module is for measuring the metering
The weight of liquid in tank, the inlet valve flow into the measuring tank for controlling liquid, and the control of export valve is used for
It controls liquid and flows out the measuring tank；
The energy storage tank is used at the end of metering, injects gas into the measuring tank so that the metering is discharged in liquid
Tank.
Further, in another embodiment of the oil field individual well metering device, the measuring tank is also associated with gas
Metering device.
Further, in another embodiment of the oil field individual well metering device, the gas-metering device includes edge
The constant pressure valve and gas flow meter that gas stream is set gradually through direction.
Further, in another embodiment of the oil field individual well metering device, the Weighing module is arranged described
The bottom of measuring tank, is additionally provided with unicom pipeline on the measuring tank, the liquid storage space of measuring tank described in the unicom pipeline unicom
With space of weighing, the liquid storage space is the corresponding measuring tank space in upper end of the piston under metering state, the sky of weighing
Between for the piston under metering state the corresponding measuring tank space in lower end.
Further, in another embodiment of the oil field individual well metering device, the cross over pipe road is equipped with unicom
Valve.
Further, in another embodiment of the oil field individual well metering device, the cleaning device includes cleaning pump
With clear tank valve.
Further, in another embodiment of the oil field individual well metering device, the metering pot bottom is connected with useless
Liquid collecting.
Further, in another embodiment of the oil field individual well metering device, pressure is additionally provided on the energy storage tank
Table.
On the other hand, this application provides a kind of individual well petroleum metering methods using oil field individual well metering device, including：
Inlet valve is opened, control of export valve is closed, the volume for flowing into the liquid in measuring tank is measured using liquid level gauge；
When the liquid level that the liquid level gauge measures the liquid in the measuring tank reaches preset height, mould of weighing is utilized
Block metering flows into the weight of the metering pot liquid；
After metering, the control of export valve is opened, the natural gas stored in energy storage tank flows into the measuring tank, will
Liquid discharge in the measuring tank；
After liquid discharge in the measuring tank, the inlet valve and the control of export valve are closed, using clear
Cleaning device injects cleaning solution into the measuring tank, and the piston in the measuring tank is pushed to clean the inner wall of the measuring tank.
Further, in another embodiment of the oil field individual well metering method, the oil field individual well metering device packet
Gas-metering device is included, the gas-metering device includes the constant pressure valve and gas flow set gradually through direction along gas stream
Meter, the method includes：
When the pressure for flowing into the gas being precipitated in the liquid in the measuring tank increases so that the pressure at the constant pressure valve both ends
When difference reaches preset pressure value, the constant pressure valve is opened；
The gas being precipitated in liquid in the measuring tank passes through the gas-metering device, the gas flowmeter metering
The volume of the gas flowed through.
Oil field individual well metering device provided by the present application and metering method, the storage by measuring tank and with measuring tank unicom
Energy tank without other additionaling powers, realizes individual well real time measure using the pressure of the gas stored in energy storage tank
And automatic drain.And the liquid in measuring tank can be completely exhausted out by measuring tank by the gas pressure in energy storage tank, avoided
It is measured caused by liquid remains inaccurate.Meanwhile piston is set in measuring tank, it is injected into measuring tank by cleaning device
Cleaning solution pushes piston to clean measuring tank, and metric results are inaccurate caused by avoiding metering pot liquid wall built-up.It is simple in structure,
It is easy to operate, oil field individual well metering is realized in the case of not needing additionaling power, improves the accuracy of one-well metering result.
Description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments described in application, for those of ordinary skill in the art, in the premise of not making the creative labor property
Under, other drawings may also be obtained based on these drawings.
Fig. 1 is a kind of structural schematic diagram of oil field individual well metering device provided by the present application；
Fig. 2 is the flow signal for carrying out the method for one-well metering in the embodiment of the present application using oil field individual well metering device
Figure.
Specific implementation mode
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality
The attached drawing in example is applied, technical solutions in the embodiments of the present application is clearly and completely described, it is clear that described implementation
Example is merely a part but not all of the embodiments of the present application.Based on the embodiment in the application, this field is common
The every other embodiment that technical staff is obtained without creative efforts should all belong to the application protection
Range.
During oil exploitation, it usually needs counted to extraction liquid measure, oil pump capacity and the water yield etc. of individual well
Amount, to analyze oil development situation, determines the recovery scheme of next step, ground engineering construction etc..Usually carrying out
When one-well metering, single well metering device can be set at producing well, the liquid produced flows into single well metering device, individual well meter
Amount device can detect the volume for measuring the liquid flowed through, weight etc..In conjunction with the density of crude oil and the density of water, can obtain
The crude output of individual well and the yield of water are obtained, moisture content is further obtained.
Meanwhile can be with gas such as natural gas etc. in the liquid generally produced, when liquid is plucked out of, gas can be from liquid
It is precipitated, single well metering device can also measure the content of natural gas in the liquid of extraction.
Fig. 1 is a kind of structural schematic diagram of oil field individual well metering device provided by the present application, each reference numeral in Fig. 1
It can be expressed as meaning：
1- inlet valves, 2- constant pressure valves, 3- natural gas flowmeters, 4- liquid level gauges, 5- pressure gauges, 6- energy storage tanks, the outlets 7-
Control valve, 8- pistons, 9- Weighing modules, 10- measuring tanks, 11- unicom valves, the clear tank valves of 12-, 13- cleaning pumps, 14- into
Liquid pipeline, 15- outlet tubes road, 16- cleaning devices, 17- unicom pipelines, 18- waste collection pipelines.
As shown in Figure 1, oil field individual well metering device provided by the present application includes：
Interconnected measuring tank 10 and energy storage tank 6 stores the gas of preset pressure, the meter in the energy storage tank 6
Measuring tank 10 is equipped with inlet pipe 14, liquid level gauge 4, outlet tube road 15, Weighing module 9, and the inlet pipe 14 is equipped with entrance
Valve 1, the outlet tube road 15 are equipped with control of export valve 7；
The piston 8 for cleaning the measuring tank, the connection of 10 bottom of the measuring tank are additionally provided with inside the measuring tank 10
There is cleaning device 16, the cleaning device 16 into the measuring tank for injecting cleaning solution；
The liquid level gauge 4 is used to measure the volume of liquid in the measuring tank 10, and the Weighing module 9 is described for measuring
The weight of liquid in measuring tank 10, the inlet valve 1 flow into the measuring tank 10, the control of export for controlling liquid
Valve 7 flows out the measuring tank 10 for controlling liquid；
The energy storage tank 6 is used at the end of metering, injects gas into the measuring tank 10 so that described in liquid discharge
Measuring tank 10.
It is used to connect inlet pipe 14 as shown in Figure 1, a through-hole can be opened up on the top of measuring tank 10, it is oil well produced
Liquid pass through inlet pipe 14 flow into measuring tank 10 in.Certainly, can also be arranged on the side wall of measuring tank as needed logical
For connecting inlet pipe 14, specific location the application that inlet pipe 14 is connect with measuring tank 10 is not especially limited in hole.Meter
It is additionally provided with liquid level gauge 4 in measuring tank 10 for measuring the liquid level for flowing into liquid in measuring tank 10, is gone out according to the level sensing of liquid
The volume of liquid.The type of liquid level gauge 4 may be used tuning fork vibrating type, maglev type, pressure type, ultrasonic wave, sonar wave, magnetic and turn over
Plate, radar etc., liquid level gauge 4 can be arranged on the outer wall of measuring tank 10, and the type of the liquid level gauge 4 selected certainly is different, liquid level
Counting 4 specific installation sites can be configured as needed, and the application is not especially limited.
Piston 8 can be arranged in the inside of measuring tank 10, may be implemented clearly by the moving up and down in measuring tank 10 of piston 8
The function of washing measuring tank avoids occurring the phenomenon that liquid wall built-up on the inner wall of measuring tank 10.It is transversal that piston 8 is parallel to measuring tank 10
The sectional area in face direction can be identical with the cross-sectional area of measuring tank 10, to ensure that piston 8 can be good at and measuring tank 10
Inner wall comes into full contact with, and realizes the function of the inner wall of cleaning measuring tank 10.Oil well produced liquid can also be avoided to flow into simultaneously to live
In the space for filling in 8 measuring tanks 10 below, the work of the Weighing module 9 of 8 lower section of piston is influenced, or when cleaning measuring tank with clear
Washing lotion flows out, and causes to waste.The specific material of piston 8 can be selected as needed, can select certain frictional force, band
There is the material of certain elasticity so that piston 8 can be good at cleaning the inner wall of measuring tank 10.
It is additionally provided with Weighing module 9 in measuring tank 10, can be specifically weighing sensor, can also select other that can claim
The device of weight.Weighing module can be arranged in the bottom of measuring tank 10, it certainly, can according to the type of the Weighing module 9 of selection
To select suitable installation site, the application to be not especially limited.
The bottom of measuring tank 10 is connected with cleaning device 16, and cleaning device 16 can inject cleaning solution such as into measuring tank 10
Hot water or other abstergent liquid of tool.The cleaning solution that cleaning device 16 injects can push piston 8 to measuring tank 10
Top is moved, and realizes the effect of cleaning measuring tank 10.
Measuring tank 10 is also associated with energy storage tank 6, and the gas of preset pressure is stored in energy storage tank 6 such as：Natural gas.Energy storage tank
6 can be connect by pipeline with measuring tank 10, and when liquid level gauge 4 measures the volume of the liquid in measuring tank 10, Weighing module 9 is counted
Measure the quality of the liquid in measuring tank 10, it, can be by outlet tube road 15 by the liquid in measuring tank 10 after completing primary metering
Body is discharged.The control of export valve 7 in outlet tube road 15 is opened, liquid is flowed out from outlet tube road 15, the liquid level in measuring tank 10
It reduces, the gas compartment increases, and the pressure in measuring tank 10 reduces.The natural gas stored in energy storage tank 6 flows into measuring tank 10, increases
The liquid in measuring tank 10 is discharged using the effect of gas pressure for pressure in big measuring tank 10.It avoids in measuring tank 10
Liquid difficulty is discharged or is not clean, and leads to the phenomenon that metric results are inaccurate.
Gas main function in energy storage tank 6 is that the liquid in measuring tank 10 is discharged, the gas stored in energy storage tank 6
Pressure value can be obtained by testing.Experiment or analogue simulation etc. can be first passed through in advance to obtain the liquid discharge in measuring tank 10
The pressure value needed, then the corresponding natural gas of the pressure value is injected into energy storage tank 6.Such as：It can be by the gas in energy storage tank 6
Pressure is controlled in 0.4-0.5Mpa.According to the needs used, can be able to be by the gas injected in energy storage tank 6 natural gas or its
His gas, the application are not especially limited.Pressure gauge 5 can be set in the application one embodiment in energy storage tank 6, realized real
When monitoring energy storage tank 6 in gas pressure value, if be decreased to cannot will be in measuring tank 10 for the pressure value for monitoring in energy storage tank 6
It, can the make-up gas into energy storage tank 6 in time when liquid is discharged.If monitor that gas pressure value in energy storage tank 6 is excessively high, shadow
The gage work for ringing measuring tank 10, then extra gas can be discharged by maintenance and inspection, ensure the normal work of device.It can be with
By the way that venthole and/or air admission hole are arranged on the outer wall of energy storage tank 6, facilitate and gas is injected and be discharged into energy storage tank 6.
Using oil field individual well metering device provided by the embodiments of the present application, two kinds of one-well metering methods may be implemented：
(1) volume of changing value the Δ G and liquid of the weight of liquid in T1 measuring tanks 10 in metering cycle can be measured
Changing value Δ V.By the variation of the volume and weight of the liquid in measuring tank in metering cycle 10, it can calculate and find out metering week
The yield data of phase T1.Intraday T2, T3 are found out successively,,, the yield data of Tn.If it is small that metering cycle is set as 1
When, then whole day can obtain 24 stage rate data, then average daily production data are shown to 24 groups of data average computations.
(2) metering tank level can be measured full of required time t1, weight change G1, volume change V1, pass through meter
The yield data that can be found out in metering cycle t1 is calculated, then all metering cycle yield datas formed in 24 hours are put down
It calculates, obtains average daily production data.
Certainly, in the embodiment of the present application and the entire infrastructure of not completely shown oil field individual well metering device, according to actually making
Needs can also add other structures, such as the sealing dress of measuring tank 10 and energy storage tank 6 in oil field individual well metering device
It sets, the sealing devices such as sealing ring can be set with exterior line junction in measuring tank 10 and energy storage tank 6, it is ensured that measuring tank 10
With 6 leakproofness of energy storage tank, the accuracy of metric results is improved.Can also waterproof case be set in the external of Weighing module 9, avoid
The liquid that cleaning device 16 injects in measuring tank 10 influences the work of Weighing module 9.Certainly, may be used also in oil field individual well metering device
To include that other are fixed or support device, the embodiment of the present application are not especially limited.
Oil field individual well metering device provided by the present application, the energy storage tank by measuring tank and with measuring tank unicom utilize
The pressure of the gas stored in energy storage tank realizes individual well real time measure without other additionaling powers.And pass through
Liquid in measuring tank can be completely exhausted out measuring tank by the gas pressure in energy storage tank, avoid measuring caused by liquid remains
It is inaccurate.Meanwhile piston is set in measuring tank, cleaning solution is injected into measuring tank by cleaning device, pushes piston cleaning
Measuring tank avoids metering pot liquid wall built-up from causing metric results inaccurate.The one-well metering work that can also be used for viscous crude, is applicable in
Range is wide, simple in structure, and oil field individual well metering is realized in the case of not needing additionaling power, improves one-well metering result
Accuracy.
Gas-metering device, gas-metering device can also be arranged in oil field individual well metering device in the application one embodiment
It can be connect with measuring tank 10, after flowing into measuring tank 10 from oil field produced liquid, with the liquid level of liquid in measuring tank 10
Rising, in gravity and under the action of pressure, the liquid in measuring tank 10 can bubbing such as natural gas.The gas of precipitation is logical
The gas-metering device being connected with measuring tank 10 is crossed, gas-metering device can measure the volume and/or matter of the gas flowed through
Amount.In order to avoid the possible inflow gas metering device of gas in energy storage tank 6, can be set between energy storage tank 6 and measuring tank 10
Valve is set, closes valve in metering process, needs again to open valve when drain.Simultaneously can gas-metering device with
Valve can also be arranged in 10 junction of measuring tank, close the valve of gas-metering device in drain, avoid in energy storage tank 6
Gas flows into gas-metering device.
As shown in Figure 1, in the application one embodiment, gas-metering device can be fixed with 2 and gas flow meter 3 of constant pressure valve
2 and gas flow meter 3 of pressure valve can be successively set on along pipeline of the gas stream through direction.When the gas being precipitated in measuring tank 10
Increase, pressure increases in measuring tank 10, and when the pressure difference at 2 both ends of constant pressure valve reaches scheduled pressure value, constant pressure valve 2 is opened, meter
For gas in measuring tank 10 by 2 gas coming through flowmeter 3 of constant pressure valve, gas flowmeter 3 can be with the body for the gas that Metrology Division flows through
Product, the gas flowmeter 3 selected as needed certainly can also the quality of gas that flow through of Metrology Division.The tool of gas flowmeter 3
Body type can be selected as needed, and the application is not especially limited.
The pressure difference of constant pressure valve 2 can be obtained by testing, or different pressure differences is set as needed, if such as level pressure
It is 0.2Mpa that volume pressure difference, which is arranged, in valve 2, then when the pressure difference at 2 both ends of constant pressure valve is more than 0.2Mpa, constant pressure valve 2 will be opened, meter
Gas in measuring tank 10 can realize the gage work of gas by 2 gas coming through flowmeter 3 of constant pressure valve.
As shown in Figure 1, the gas being precipitated in measuring tank 10 passes through 2 and gas flow meter of constant pressure valve in gas-metering device
After 3, outlet tube road 15 can be flowed into together with the liquid in measuring tank 10 by pipeline and enter mixed transporting tube line, flow into specified dress
So as to subsequent processing in setting.
It can make the gas pressure in measuring tank 10 and energy storage tank 6 by the way that constant pressure valve 2 is arranged in gas-metering device
It is maintained at a more stable value, it is ensured that influence of the gas to the metering of gas flow in energy storage tank 6 is little.Energy storage tank 6
It can be not provided with valve between measuring tank 10, while valve can not also be set between gas-metering device and measuring tank 10,
So that oil field individual well metering device structure is simpler, operation is more convenient.Certainly, in order to improve the accurate of metric results
Degree can also avoid the gas in energy storage tank 6 from flowing into gas flowmeter 3 by the way that valve is arranged.
Using the effect of liquid gravity, it can make the gas evolution in the liquid in measuring tank 10.By being set to meter
The connected gas flow meter of measuring tank 10, the gas of precipitation can be by 2 and gas flow meter 3 of constant pressure valve, by gas flowmeter 3
The volume and/or quality of the gas of precipitation are measured, realizes the accurate metering of oil field individual well gas.
As shown in Figure 1, measuring tank 10 is divided by piston 8 for upper and lower two spaces, when being in metering state, piston 8 is located at meter
The top of the weighing device 9 of 10 bottom of measuring tank.The measuring tank space of 8 or more piston at this time can be known as liquid storage space, will lived
It fills in 8 measuring tank spaces below and is known as space of weighing.Unicom pipeline 17 can also be set on measuring tank 10, the two of unicom pipeline 17
A port is separately connected the liquid storage space of measuring tank 10 and space of weighing.It in this way can be to avoid gas in liquid storage space and space of weighing
The result of the weight for the liquid that weighing device 9 measures caused by body pressure difference is inaccurate, improves oil field individual well metering dress
The accuracy for the metric results set.
As shown in Figure 1, in the application one embodiment, unicom valve 11 can be set in unicom pipeline 17, work as device
When in metering state, unicom valve 11 is opened, it is ensured that the liquid storage space of measuring tank 10 and the gas pressure weighed in space
It is identical.When metering terminates, and needs to clean measuring tank 10, unicom valve 11 can be closed, avoid the injection meter of cleaning device 16
Cleaning solution in measuring tank 10 flows into liquid storage space by unicom pipeline 17, and interference piston 8 cleans measuring tank, while can be to avoid clear
Washing lotion flows into mixed transporting tube line by outlet tube road 15, influences the quality of the liquid of output.
As shown in Figure 1, cleaning device 16 may include cleaning pump 13 and clear tank valve 12 in the application one embodiment, when
After liquid meter in measuring tank 10, clear tank valve 12 can be opened, inlet valve 1 and control of export valve 7 is closed, opens
Dynamic cleaning pump 13 injects cleaning solution such as hot water into measuring tank 10.Cleaning solution in injection measuring tank 10 pushes piston 8 to moving up
It is dynamic, the greasy dirt etc. for being attached to 10 inner wall of measuring tank is cleaned out using piston 8.The attachment of 10 inner wall of measuring tank can be stone
Wax, is a kind of ingredient of easy solidification deposition in crude oil, and paraffin is attached to 10 inner wall of measuring tank, can influence the appearance of measuring tank
Product, leads to measurement error.It pushes piston 8 to move up by injecting cleaning solution into measuring tank 10, can specifically be moved to meter
At the gauge height of measuring tank 10, realization cleans up the attachment being attached on 10 inner wall of measuring tank.Gauge height can be
The one third of 10 height of measuring tank, can be arranged the gauge height of measuring tank 10 as needed certainly.It can be in cleaning process
Control of export valve 7 is closed, it is ensured that cleaning solution is injected into measuring tank 10.
Can close cleaning pump 13 after cleaning, piston 8 in gravity and energy storage tank 6 under the action of gas pressure to
Lower movement, is reset to initial position.Cleaning solution in measuring tank 10 can be flowed out by the pipeline of cleaning device, liquid row to be cleaned
Clear tank valve 12 is turned off after removing.
In the application one embodiment, waste collection pipeline 18, measuring tank 10 can also be connected in the bottom of measuring tank 10
After cleaning, clear tank valve 12 can be closed, cleaning solution is expelled to by the waste collection pipeline 18 of 10 bottom of measuring tank
It is collected in specified containers, avoids contaminated cleaning solution environment, outlet tube road etc..
Oil field individual well metering device provided by the present application, the energy storage tank by measuring tank and with measuring tank unicom utilize
The pressure of the gas stored in energy storage tank realizes the real time measure of individual well without other additionaling powers.And lead to
Liquid in measuring tank can be completely exhausted out measuring tank by the gas pressure crossed in energy storage tank, avoid counting caused by liquid remains
Amount is inaccurate.Meanwhile piston is set in measuring tank, cleaning solution is injected into measuring tank by cleaning device, pushes piston clear
Measuring tank is washed, avoids metering pot liquid wall built-up from causing metric results inaccurate, improves the accuracy of one-well metering result.Together
When, can also by the gas-metering device that is connected with measuring tank, using in measuring tank liquid level gauge and Weighing module can be real
The metering of existing crude oil and water, it is comprehensive to realize oil, gas and water three phase metering, it may also be used for the metering of viscous crude, it is applied widely.And
And gas phase, oil product liquid level and quality synchronous measurement are completed, improve measuring accuracy.
Fig. 2 is the flow signal for carrying out the method for one-well metering in the embodiment of the present application using oil field individual well metering device
Figure, as shown in Fig. 2, the method that the oil field individual well metering device in the various embodiments described above used herein carries out one-well metering can
To include the following steps：
S1, inlet valve is opened, closes control of export valve, the body for flowing into the liquid in measuring tank is measured using liquid level gauge
Product.
Specifically, when carrying out oil field individual well metering, inlet valve 1 is opened, control of export valve 7 is closed, is adopted from oil field
The liquid gone out is flowed by inlet pipe 14 in measuring tank 10, and the liquid level in measuring tank 10 is gradually increasing.Measuring tank can be utilized
The metering of liquid level gauge 4 in 10 flows into the liquid level of the liquid in measuring tank 10, further obtains the volume of liquid in measuring tank 10.
S2, when the liquid level that the liquid level gauge measures the liquid in the measuring tank reaches preset height, utilize title
The metering of molality block flows into the weight of the metering pot liquid.
Specifically, the Weighing module 9 in liquid level gauge 4 and measuring tank 10 can each preset time be surveyed once for such as 30 seconds respectively
The liquid level and weight of liquid in measuring tank 10.When the liquid level that liquid level gauge 4 measures liquid in measuring tank 10 reaches preset height,
The weight of the liquid in measuring tank 10 at this time can be measured using Weighing module 9 and is recorded.The liquid of liquid in measuring tank 10
Upper limit value, that is, preset height of position can be obtained by testing, and preset height is rationally arranged, and be overflow to avoid liquid in measuring tank 10
Go out.
After S3, metering, the control of export valve is opened, the natural gas stored in energy storage tank flows into the metering
Liquid in the measuring tank is discharged tank.
Specifically, when liquid level gauge 4 detect the liquid in measuring tank 10 liquid level reach preset height, Weighing module 9 with
And after liquid level gauge 4 is respectively recorded the liquid level (i.e. volume) and weight of the liquid in measuring tank 10 at this time, complete this
Gage work.At this moment, control of export valve 7 can be opened the liquid in measuring tank 10 is discharged by outlet tube road 15.With
The outflow of liquid in measuring tank 10, the gas compartment in measuring tank 10 increase, and pressure reduces, and the gas in energy storage tank 6 can be with
It flows into measuring tank 10, increases the pressure of the gas in measuring tank 10, using the effect of gas pressure by the liquid in measuring tank 10
Body is discharged.The liquid of discharge can flow into the output of mixed transporting tube line from outlet tube road 15.
S4, when in the measuring tank liquid discharge after, close the inlet valve and the control of export valve, utilize
Cleaning device injects cleaning solution into the measuring tank, and the piston in the measuring tank is pushed to clean the inner wall of the measuring tank.
It specifically,, can be by inlet valve 1 before carrying out gage work next time after the liquid discharge in measuring tank 10
It is closed with control of export valve 7, injects cleaning solution such as hot water etc. into measuring tank 10 using cleaning device 16.Cleaning can be filled
The clear tank valve 12 set in 16 is opened, and cleaning solution is pumped into measuring tank 10 using cleaning pump.Cleaning solution passes through measuring tank 10
Measuring tank 10 is injected in bottom, and the piston 8 in measuring tank 10 is pushed to move up.Piston 8 can will be counted during moving up
The attachment adhered on 10 inner wall of measuring tank is cleaned out, and as cleaning solution is discharged.It can be by unicom pipeline 17 during clear tank
In unicom valve 11 close, avoid cleaning solution from flowing into cross over pipe road.After clear tank, cleaning pump 13 can be closed, piston 8
It is moved down under the action of gas pressure in gravity and energy storage tank 6, by the cleaning solution and measuring tank 10 in measuring tank 10
The attachment of inner wall is discharged from waste collection pipeline 18, and cleaning solution and attachment can also be discharged into the pipeline of cleaning device
In, the method specifically cleaned can refer to the introduction of above-described embodiment.After clear tank, piston 8 restores to metering state, can be with
Inlet valve 1 is opened, gage work next time is carried out.
In the application one embodiment, a kind of gas dosing method is additionally provided, it can be in oil field individual well metering device
Gas-metering device is set, and the gas-metering device includes the constant pressure valve 2 set gradually through direction along gas stream and gas stream
Gauge 3.
When flow into measuring tank 10 in liquid under the action of gravity and air pressure, gradual bubbing, with the gas of precipitation
The pressure of body increases so that when the pressure difference at 2 both ends of constant pressure valve reaches preset pressure value, constant pressure valve 2 is opened.Liquid in measuring tank 10
The gas of middle precipitation flows to gas flowmeter 3 by constant pressure valve 2, and gas flowmeter 3 is by the volume and/or matter of the gas flowed through
Amount is measured and is recorded, and the gage work of oil field individual well gas is completed.
The embodiment of the present application can further be counted by the liquid of multiple instantaneous Metrology Divisions and/or the metric results of gas
Calculate individual well hourly average yield and per day yield, specifically can profit with the following method：
The volume change of changing value the Δ G and liquid of the weight of liquid in T1 measuring tanks 10 in metering cycle can be measured
It is worth Δ V.By the variation of the volume and weight of the liquid in measuring tank in metering cycle 10, it can calculate and find out metering cycle T1
Yield data.Intraday T2, T3 are found out successively,,, the yield data of Tn.If metering cycle is set as 1 hour, that
Whole day can obtain 24 stage rate data, then obtain average daily production data to 24 groups of data average computations.Likewise,
It can measure in metering cycle；The volume for the gas being precipitated in liquid and/quality, obtain the per day production of the gas of individual well
Amount.
Metering tank level can also be measured full of required time t1, weight change G1, volume change V1, pass through calculating
The yield data in metering cycle t1 can be found out, then is averaged to all metering cycle yield datas formed in 24 hours
It calculates, obtains average daily production data.Average daily production data may include daily fluid production rate, daily oil production, moisture content etc..It is aqueous
Calculating for rate can be according to the volume and weight of the liquid measured, and the density of the crude oil of oil well, the density of water are a opposite
Stable parameter, in conjunction with the density of crude oil and the density of water, can calculate the volume of water in the liquid produced in oil field with
And quality, obtain the moisture content of the liquid produced in oil field.
Oil may be implemented using the measuring tank in oil field individual well metering device in oil field individual well metering method provided by the present application
The liquid meter of field individual well, and smoothly the liquid in measuring tank can be discharged using the pressure of gas in energy storage tank, it avoids
The precision of liquid remaining influence liquid meter result.It can utilize cleaning device that will measure residual liquid in top tank structure simultaneously clear
Wash clean improves the accuracy of one-well metering result.Method is simple, easy to operate, improves the accurate of one-well metering result
Property.
It should be noted that the application method that oil field individual well metering device arrives in the application, it is single to be referred to above-mentioned oil field
The embodiment of the structure of well metering device carries out, and details are not described herein again.
Each embodiment in this specification is described in a progressive manner, identical similar portion between each embodiment
Point just to refer each other, and each embodiment focuses on the differences from other embodiments.In retouching for this specification
In stating, the description of reference term " one embodiment ", " some embodiments ", " example ", " specific example " or " some examples " etc.
Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least the one of this specification
In a embodiment or example.In the present specification, schematic expression of the above terms are necessarily directed to identical implementation
Example or example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiments or example
In can be combined in any suitable manner.In addition, without conflicting with each other, those skilled in the art can will be in this specification
The different embodiments or examples of description and the feature of different embodiments or examples are combined.Present specification is attached
Figure is only merely schematic diagram, does not represent the practical structures of all parts.
The foregoing is merely the embodiments of this specification one or more embodiment, are not limited to book explanation
Book one or more embodiment.To those skilled in the art, this specification one or more embodiment can have various
Change and variation.All any modification, equivalent replacement, improvement and so within spirit herein and principle should all include
Within right.
Claims (10)
1. a kind of oil field individual well metering device, which is characterized in that including：
Interconnected measuring tank and energy storage tank stores the gas of preset pressure in the energy storage tank, is set on the measuring tank
There are inlet pipe, liquid level gauge, outlet tube road, Weighing module, the inlet pipe to be equipped with inlet valve, the outlet tube road
Equipped with control of export valve；
The piston for cleaning the measuring tank is additionally provided with inside the measuring tank, the metering pot bottom is connected with cleaning dress
It sets, the cleaning device into the measuring tank for injecting cleaning solution；
The liquid level gauge is used to measure the volume of liquid in the measuring tank, and the Weighing module is for measuring in the measuring tank
Liquid weight, the inlet valve flows into the measuring tank for controlling liquid, and the control of export valve is for controlling
Liquid flows out the measuring tank；
The energy storage tank is used at the end of metering, injects gas into the measuring tank so that the measuring tank is discharged in liquid.
2. a kind of oil field individual well metering device as described in claim 1, which is characterized in that the measuring tank is also associated with gas
Metering device.
3. a kind of oil field individual well metering device as claimed in claim 2, which is characterized in that the gas-metering device includes edge
The constant pressure valve and gas flow meter that gas stream is set gradually through direction.
4. a kind of oil field individual well metering device as described in claim 1, which is characterized in that the Weighing module is arranged described
The bottom of measuring tank, is additionally provided with unicom pipeline on the measuring tank, the liquid storage space of measuring tank described in the unicom pipeline unicom
With space of weighing, the liquid storage space is the corresponding measuring tank space in upper end of the piston under metering state, the sky of weighing
Between for the piston under metering state the corresponding measuring tank space in lower end.
5. a kind of oil field individual well metering device as claimed in claim 4, which is characterized in that the cross over pipe road is equipped with unicom
Valve.
6. a kind of oil field individual well metering device as described in claim 1, which is characterized in that the cleaning device includes cleaning pump
With clear tank valve.
7. a kind of oil field individual well metering device as described in claim 1, which is characterized in that the metering pot bottom is connected with useless
Liquid collecting.
8. a kind of oil field individual well metering device as claimed in claim 7, which is characterized in that be additionally provided with pressure on the energy storage tank
Table.
9. a kind of method carrying out one-well metering using any one of the claim 1-8 oil field individual well metering devices, feature
It is, including：
Inlet valve is opened, control of export valve is closed, the volume for flowing into the liquid in measuring tank is measured using liquid level gauge；
When the liquid level that the liquid level gauge measures the liquid in the measuring tank reaches preset height, Weighing module meter is utilized
Amount flows into the weight of the metering pot liquid；
After metering, the control of export valve is opened, the natural gas stored in energy storage tank flows into the measuring tank, will be described
Liquid discharge in measuring tank；
After the liquid in the measuring tank is discharged, the inlet valve and the control of export valve are closed, cleaning is utilized to fill
It sets and injects cleaning solution into the measuring tank, the piston in the measuring tank is pushed to clean the inner wall of the measuring tank.
10. a kind of method of oil field individual well metering as claimed in claim 9, the oil field individual well metering device includes aerometer
Device is measured, the gas-metering device includes the constant pressure valve and gas flow meter set gradually through direction along gas stream, feature
It is, the method includes：
When the pressure for flowing into the gas being precipitated in the liquid in the measuring tank increases so that the pressure difference at the constant pressure valve both ends arrives
When up to preset pressure value, the constant pressure valve is opened；
The gas being precipitated in liquid in the measuring tank is flowed through by the gas-metering device, the gas flowmeter metering
Gas volume.
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| CN201711324340.XA CN108316912B (en) | 2017-12-13 | 2017-12-13 | Oil field single well metering device and metering method |
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| CN201711324340.XA CN108316912B (en) | 2017-12-13 | 2017-12-13 | Oil field single well metering device and metering method |
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| CN109115653A (en) * | 2018-09-26 | 2019-01-01 | 重庆科技学院 | A kind of tuning fork resonance crude oil water content measuring device and its measurement method |
| CN109403951A (en) * | 2018-12-06 | 2019-03-01 | 克拉玛依市尚正石油科技有限公司 | Oil well three-phase metering integrated apparatus |
| CN109444382A (en) * | 2018-10-11 | 2019-03-08 | 江苏华尔威科技集团有限公司 | A kind of crude oil single well metering system with transporting function |
| CN110424946A (en) * | 2019-08-23 | 2019-11-08 | 董向军 | Single well metering device, individual well and one-well metering method |
| CN110965986A (en) * | 2019-11-01 | 2020-04-07 | 南京瑞路通达信息技术有限公司 | Device and method for measuring three-phase flow of oil field production well produced liquid |
| CN110965985A (en) * | 2019-11-01 | 2020-04-07 | 南京瑞路通达信息技术有限公司 | Automatic measuring device and method for mass flow of produced liquid of oil field production well |
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| CN112012717A (en) * | 2020-08-31 | 2020-12-01 | 青州市春晖科技发展有限公司 | Double-piston type liquid production metering device for oil well and metering method thereof |
| CN113638733A (en) * | 2020-04-28 | 2021-11-12 | 中国石油天然气股份有限公司 | Metering device and method for measuring liquid production amount and stage water content of oil well |
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| CN111206918A (en) * | 2020-03-25 | 2020-05-29 | 新疆金牛能源物联网科技股份有限公司 | Oil well metering equipment |
| CN113638733A (en) * | 2020-04-28 | 2021-11-12 | 中国石油天然气股份有限公司 | Metering device and method for measuring liquid production amount and stage water content of oil well |
| CN112012717B (en) * | 2020-08-31 | 2021-05-18 | 青州市春晖科技发展有限公司 | Double-piston type liquid production metering device for oil well and metering method thereof |
| CN112012717A (en) * | 2020-08-31 | 2020-12-01 | 青州市春晖科技发展有限公司 | Double-piston type liquid production metering device for oil well and metering method thereof |
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