CN208546164U - Unpowered automatic drain metering device - Google Patents
Unpowered automatic drain metering device Download PDFInfo
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- CN208546164U CN208546164U CN201820877533.1U CN201820877533U CN208546164U CN 208546164 U CN208546164 U CN 208546164U CN 201820877533 U CN201820877533 U CN 201820877533U CN 208546164 U CN208546164 U CN 208546164U
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Abstract
The utility model relates to oil field ground Produced Liquid field of measuring techniques, are a kind of unpowered automatic drain metering device, including vertical metering separator and control module.The utility model meets the requirement under different working conditions to extraction gas-liquid metering, the defeated more significant advantage of metering sum aggregates low especially for gas-oil ratio, under the serious bad working environments of associated gas slug；It maintains pressure difference certain in vertical metering separator by control differential pressure control valve, and the liquid phase after guaranteeing metering is normally discharged；And utilize well head pressure energy, realize unpowered automatic drain gathering and transportation technology, the utility model cancels the design of positive displacement pump simultaneously, energy consumption is saved, cost of equipment is saved simultaneously, thus avoid bringing using positive displacement pump drain pump start and stop frequently, high failure rate, the problem of field maintenance heavy workload, work for production metering of oil wells in oilfield surface engineering and better service be provided.
Description
Technical field
The utility model relates to oil field ground Produced Liquid field of measuring techniques, are a kind of unpowered automatic drain metering dresses
It sets.
Background technique
Currently, mostly using split type metering device, dual-volume storage metering sledge etc., these metering devices tool in oilfield surface engineering
For function, strong, the higher advantage of the degree of automation, improves productivity and management level.But it is transported in practical certain unstable periods
In row, equipment application effect is not that very well, especially in the oil well production later period, the performance of metering device drain difficult problem is obvious.
Seperated metering device cardinal principle: using separation, metering split-type design.Oil well come gas-liquid be introduced into separating barrel into
Row separation, isolated associated gas enter device flow line after measuring by flowmeter.Oil, water after separation mix liquid and enter metering
Bucket is measured.When liquid level reaches gauge height, tapping valve height opens low pass setting, realizes interval volume measurement technique.Liquid out
When gas phase switch valve close, to provide certain pressure, interlocking is opened pump and is transferred when insufficient pressure.
Dual-volume storage measures sledge cardinal principle: using separation, metering integrated design.Oil well carrys out gas-liquid and is introduced into metering separation
Device carries out gas-liquid separation, the associated gas isolated measured by flowmeter after into device flowline, the liquid isolated according to
By accumulation of the liquid measure in certain time in container, so that medium in liquidometer is raised to setting value (tapping valve height opens low pass), pass through
Volume variation carries out interval mass metrology technique.Gas phase switch valve is closed when liquid out, to provide certain pressure, when insufficient pressure
Interlocking is opened pump and is transferred.
Above-mentioned apparatus practical application effect:
Under the operating condition that individual well gas liquid ratio is high, association tolerance is stable, device is whole for seperated metering device, dual-volume storage metering sledge
Performance is stablized, and measuring accuracy is higher.But individual well gas liquid ratio is low, associated gas slug serious operating condition when, often there is pressure not
It is enough short of power, cannot achieve automatic drain；To guarantee that Produced Liquid can be discharged from metering device, the drain equipped with auxiliary
Pump, the start and stop of pump are controlled according to the liquid level of metering device, cause pump start and stop frequently, high failure rate, live maintenance mans
Work amount is big, influences the normal production run in oil field.
Summary of the invention
The utility model provides a kind of unpowered automatic drain metering device, overcomes the defects of the prior art,
It can effectively solve, associated gas slug serious operating condition low for gas liquid ratio, the positive displacement pump that existing Produced Liquid metering device uses,
Since start and stop are frequent, the problem of leading to positive displacement pump high failure rate.
The technical solution of the utility model is realized by following measures: a kind of unpowered automatic drain metering dress
Set, including vertical metering separator and control module, be provided on the top of vertical metering separator and carry out liquid import, come liquid into
Mouth is communicated with individual well and carrys out gas-liquid pipeline, and the lower part of vertical metering separator is provided with Produced Liquid outlet, exports and connects in Produced Liquid
It is connected with outlet tube line, is provided with extraction port on carrying out the vertical metering separator above liquid import, in extraction port and liquid out
It is communicated with extraction gas pipeline between pipeline, is sequentially serially connected with gas phase flow rate on extraction gas pipeline of the extraction port to outlet tube line
Meter and differential pressure control valve, are provided with differential pressure pressure transmitter on the extraction gas pipeline at differential pressure control valve both ends, go out in Produced Liquid
It is sequentially serially connected with mass flowmenter and fluid level control valve on outlet tube line between mouth and extraction gas pipeline, is separated in vertical metering
Far transmission level meter is provided on device, the signal output end of far transmission level meter is electrically connected with the first signal input part of control module,
First signal output end of control module is electrically connected with the signal input part of fluid level control valve, and the signal of differential pressure pressure transmitter is defeated
Outlet is electrically connected with the second signal input terminal of control module, the second signal output end of control module and the letter of differential pressure control valve
The electrical connection of number input terminal.
Here is the further optimization and/or improvements to invention technology described above scheme:
Above-mentioned control module uses remote-terminal unit.
Above-mentioned individual well carrys out between gas-liquid pipeline and outlet tube line to be communicated with feed liquor bypass line, goes here and there on feed liquor bypass line
It is connected to valve, comes on gas-liquid pipeline to be serially connected with valve in individual well.
Be serially connected with extraction air valve on the extraction gas pipeline of above-mentioned extraction port and gas phase flow rate meter, extraction air valve with
Safety vent pipeline is communicated on extraction gas pipeline between extraction port.
Above-mentioned gas phase flow rate meter uses vortex-shedding meter.
Unpowered automatic drain metering device described in the utility model meets under different working conditions to extraction gas-liquid metering
Requirement, metering sum aggregates low especially for gas-oil ratio, under the serious bad working environments of associated gas slug it is defeated more significant advantage；
It maintains pressure difference certain in vertical metering separator by control differential pressure control valve, and the liquid phase after guaranteeing metering is normally arranged
Out；And well head pressure energy is utilized, realize unpowered automatic drain gathering and transportation technology, while the utility model cancels setting for positive displacement pump
Meter, has saved energy consumption, while saving cost of equipment, thus avoid bringing using positive displacement pump drain pump start and stop frequently, failure rate
The problem of height, field maintenance heavy workload, provides better service for production metering of oil wells work in oilfield surface engineering；Separately
Outside, the utility model can measure crude oil water content in the high-precision measuring for individual well Produced Liquid, gas, can be used for single seat well
In, it can also be used to which measuring station selects well to measure, and the utility model method is applicable not only to oil-gas ratio stabilization, the stable oil well of yield
The metering of Produced Liquid, gas, be applied equally to output fluctuation range is big, oil-gas ratio variation greatly, the extremely unstable oil well of operating condition is adopted
Out liquid, gas metering, it can be achieved that Produced Liquid continuous metering and volume intermittent dosing switching.
Detailed description of the invention
Attached drawing 1 is the process flow chart of the best embodiment of the utility model.
Coding in attached drawing is respectively as follows: 1 for vertical metering separator, and 2 carry out gas-liquid pipeline for individual well, and 3 be outlet tube line, and 4
To produce gas pipeline, 5 be gas phase flow rate meter, and 6 be differential pressure control valve, and 7 be differential pressure pressure transmitter, and 8 be mass flowmenter, and 9 are
Fluid level control valve, 10 be far transmission level meter, and 11 be feed liquor bypass line, and 12 be valve, and 13 put for extraction air valve, 14 for safety
Blank pipe line, 15 be control module.
Specific embodiment
The utility model is not limited by following embodiments, can technical solution according to the present utility model and actual conditions
Determine specific embodiment.In the utility model, equipment, the instrument used is respectively equipment and instrument in existing well-known technique
Table.
In the present invention, for ease of description, the description of the relative positional relationship of each component is according to specification
The Butut mode of attached drawing 1 is described, such as: front, rear, top, and bottom, left and right positional relationship be according to Figure of description 1
Butut direction determine.
The utility model is further described below with reference to embodiment:
As shown in Fig. 1, the unpowered automatic drain metering device, including vertical metering separator 1 and control module 15,
It is provided on the top of vertical metering separator 1 and carrys out liquid import, there is individual well to carry out gas-liquid pipeline 2 carrying out liquid inlet communication, vertical
The lower part of metering separator 1 is provided with Produced Liquid outlet, has outlet tube line 3 in Produced Liquid outlet, is coming above liquid import
Vertical metering separator 1 on be provided with extraction port, extraction port and outlet tube line 3 between be communicated with extraction gas pipeline 4,
It is sequentially serially connected with gas phase flow rate meter 5 and differential pressure control valve 6 on extraction gas pipeline 4 of the extraction port to outlet tube line 3, in differential pressure
It is provided with differential pressure pressure transmitter 7 on the extraction gas pipeline 4 at 6 both ends of control valve, exported in Produced Liquid and is produced between gas pipeline 4
Outlet tube line 3 on be sequentially serially connected with mass flowmenter 8 and fluid level control valve 9, be provided with teletransmission on vertical metering separator 1
Liquidometer 10, the signal output end of far transmission level meter 10 are electrically connected with the first signal input part of control module 15, control module
15 the first signal output end is electrically connected with the signal input part of fluid level control valve 9, the signal output end of differential pressure pressure transmitter 7
It is electrically connected with the second signal input terminal of control module 15, second signal output end and the differential pressure control valve 6 of control module 15
Signal input part electrical connection.
The present apparatus is by combining vertical metering separator 1, control module 15, gas phase flow rate meter 5, differential pressure control valve 6, differential pressure
Pressure transmitter 7, mass flowmenter 8, fluid level control valve 9 and far transmission level meter 10, can meet under different working conditions to extraction
The requirement of gas-liquid metering, it is strong to various adaptability for working condition, it is defeated more significant especially for the metering sum aggregate under bad working environments
Advantage；Such as carry out the situation that gas-liquid is stable, gas-oil ratio is high, by the pressure difference before control 6 valve of differential pressure control valve and after valve, maintain
Certain pressure difference in vertical metering separator 1, the liquid phase after guaranteeing metering are normally discharged；For another example gas-oil ratio is low, associated gas (gas
Phase) the case where being easy slug, by controlling differential pressure control valve 6, differential pressure control valve 6 is closed when necessary, and vertical metering is maintained to separate
Certain pressure difference in device 1, the liquid phase after guaranteeing metering are normally discharged；Under bad working environments, by controlling differential pressure control valve 6,
Guarantee that there is enough drain power in vertical metering separator 1, and utilize well head pressure energy, realizes unpowered automatic drain collection
Defeated technique, while the utility model cancels the design of positive displacement pump, has saved energy consumption, while saving cost of equipment, has thus avoided
Using positive displacement pump drain bring pump start and stop frequently, high failure rate, the problem of field maintenance heavy workload, since the utility model is transported
Equipment that row is unpowered, therefore the maintenance work of the utility model metering device is reduced, reduce maintenance work and expense, for oil
Production metering of oil wells work provides better service in the ground surface works of field.
In addition, the measuring accuracy of the utility model metering device is higher.
Here is the further optimization and/or improvements to above-mentioned unpowered automatic drain metering device:
As needed, control module 15 uses remote-terminal unit.
Remote-terminal unit (Remote Terminal Unit, RTU) is a kind of longer and industrial for communication distance
With modular construction, the special computer measurement and control unit that site environment is severe and designs, it by end point detection instrument and
Executing agency and the master computer at remote control and regulation center connect, and have remote data acquisition, control and communication function, can connect
The operational order for receiving master computer controls executing agency's movement of end.
As shown in Fig. 1, individual well carrys out between gas-liquid pipeline 2 and outlet tube line 3 to be communicated with feed liquor bypass line 11, in feed liquor
It is serially connected with valve 12 on bypass line 11, carrys out on gas-liquid pipeline 2 to be serially connected with valve 12 in individual well.
As shown in Fig. 1, extraction air valve 13 is serially connected on the extraction gas pipeline 4 of extraction port and gas phase flow rate meter 5,
Safety vent pipeline 14 is communicated on extraction gas pipeline 4 between extraction air valve 13 and extraction port.
As needed, gas phase flow rate meter 5 uses vortex-shedding meter.
The characteristics of vortex-shedding meter is that the pressure loss is small, and range ability is big, and precision is high, several in Test Cycle volume flow
It is not influenced by parameters such as fluid density, pressure, temperature, viscosity.
The metering method of this is unpowered automatic drain metering device, carry out as follows: individual well carrys out gas-liquid and passes through individual well
Carry out gas-liquid pipeline 2 and enter vertical 1 gas-liquid separation of metering separator, the gas phase isolated enters extraction gas pipeline 4, into extraction gas
The gas phase of pipeline 4 is measured by gas phase flow rate meter 5, and the gas phase after metering enters outlet tube line 3 after differential pressure control valve 6, point
The liquid phase separated out enters outlet tube line 3, and the liquid phase into outlet tube line 3 is measured by mass flowmenter 8；Wherein, pass through differential pressure
Pressure transmitter 7 acquires the differential pressure data before 6 valve of differential pressure control valve and after valve, and differential pressure pressure transmitter 7 is by collected differential pressure
Value is sent to control module 15, and control module 15 sends the signal of controlling opening of valve to differential pressure control valve 6 according to differential pressure value,
Moment guarantees to maintain certain pressure difference (poor when differential pressure value reaches differential pressure lower bound setting value before 6 valve of differential pressure control valve and after valve
Pressure control valve 6 is closed), meet the pressure requirements for normally exporting liquid phase in vertical metering separator 1；Far transmission level meter 10 will be adopted
The liquid level data collected is sent to control module 15, and control module 15 sends regulating valve to fluid level control valve 9 according to liquid level data
The signal of door switch.
This metering method by combine vertical metering separator 1, control module 15, gas phase flow rate meter 5, differential pressure control valve 6,
Differential pressure pressure transmitter 7, mass flowmenter 8, fluid level control valve 9 and far transmission level meter 10 meet under different working conditions to adopting
The requirement of gas-liquid metering out, it is strong to various adaptability for working condition, it is defeated more aobvious especially for the metering sum aggregate under bad working environments
The advantage of work；Such as carry out the situation that gas-liquid is stable, gas-oil ratio is high, pass through the pressure difference before control 6 valve of differential pressure control valve and after valve, dimension
Pressure difference certain in vertical metering separator 1 is held, the liquid phase after guaranteeing metering is normally discharged；For another example gas-oil ratio is low, associated gas
(gas phase) is easy the case where slug, by controlling differential pressure control valve 6, closes differential pressure control valve 6 when necessary, maintains vertical metering point
From pressure difference certain in device 1, the liquid phase after guaranteeing metering is normally discharged；Under bad working environments, by controlling differential pressure control valve
6, guarantee that there is enough drain power in vertical metering separator 1.
The metering method of the present apparatus for individual well Produced Liquid, the high-precision measuring of gas, while can measure crude oil water content,
It can be used in single seat well site, it can also be used to which measuring station selects well to measure, and the utility model method is applicable not only to oil-gas ratio stabilization, produces
The metering for measuring stable oil well produced liquid, gas, be applied equally to output fluctuation range is big, oil-gas ratio variation greatly, operating condition pole is not
The metering of stable oil well produced liquid, gas is, it can be achieved that Produced Liquid continuous metering requires.
When Liquid output is not able to satisfy the defeated operating condition of continuum, the gas phase isolated passes through gas phase flow rate meter 5 and measures, differential pressure pressure
Power transmitter 7 acquires the differential pressure data before 6 valve of differential pressure control valve and after valve, and differential pressure pressure transmitter 7 is by collected differential pressure value
It is sent to control module 15, control module 15 sends the signal of controlling opening of valve to differential pressure control valve 6 according to differential pressure value, when
It carves before guaranteeing 6 valve of differential pressure control valve and maintains certain pressure difference after valve, meet hydrops in vertical metering separator 1 is normally defeated
Pressure requirements out；The liquid phase isolated saves bit by bit liquid level in vertical metering separator 1, when the collected liquid of far transmission level meter 10
When position data are no more than the bottom level limit that control module 15 is arranged, control module 15 sends to fluid level control valve 9 and closes valve
Signal, when the collected liquid level data of far transmission level meter 10 not less than control module 15 be arranged liquid level upper limit value when, control
Module 15 sends the signal for opening valve to fluid level control valve 9, is closed according to fluid level control valve 9 to the liquid level in the time opened and is become
Change, calculates Liquid output, meanwhile, out when liquid, mass flowmenter 8 can also calculate yield and proofread calibration and usage each other.
The defeated operating condition of continuum it is not able to satisfy for Liquid output, the present embodiment 3 uses volume intermittent dosing mode.Intermittent dosing
Technique is the preferred forms under the small operating condition of Liquid output.
When Liquid output meets under the defeated operating condition of continuum, the gas phase isolated is measured by gas phase flow rate meter 5, differential pressure pressure
Differential pressure data before acquisition 6 valve of differential pressure control valve of transmitter 7 and after valve, differential pressure pressure transmitter 7 send out collected differential pressure value
Control module 15 is given, control module 15 sends the signal of controlling opening of valve, moment to differential pressure control valve 6 according to differential pressure value
Certain pressure difference is maintained before guarantee 6 valve of differential pressure control valve and after valve, it is ensured that enough power when vertical 1 drain of metering separator
It is required that；After the liquid phase isolated rises to liquid level upper limit value in vertical metering separator 1, fluid level control valve 9 is opened, through quality stream
Meter 8 measures, and realizes that Produced Liquid continuous metering exports metering device, completes entire measurement flow.Using the metering of continuous metering
Mode.Continuous metering technique is the preferred forms under the big operating condition of Liquid output, and continuous metering precision is higher, more to production monitoring
Favorably.
It is found that the utility model can be suitable for, Liquid output fluctuation is excessive, liquid measure increases and measuring container holds from the above mentioned
The operating condition that product cannot not enough measure meets normal metering gathering and transporting requirement using the mass flowmenter 8 on outlet tube line 3；This
The switching of utility model realization volume intermittent dosing and flowmeter continuous metering technique.
In conclusion unpowered automatic drain metering device described in the utility model, meet under different working conditions to adopting
The requirement of gas-liquid metering out, metering sum aggregates low especially for gas-oil ratio, under the serious bad working environments of associated gas slug are defeated more
Significant advantage；It maintains pressure difference certain in vertical metering separator 1 by control differential pressure control valve 6, after guaranteeing metering
Liquid phase be normally discharged；And well head pressure energy is utilized, realize unpowered automatic drain gathering and transportation technology, while the utility model is cancelled
The design of positive displacement pump has saved energy consumption, while having saved cost of equipment, thus avoids bringing pump start and stop frequency using positive displacement pump drain
The problem of numerous, high failure rate, field maintenance heavy workload, provides more high-quality for production metering of oil wells work in oilfield surface engineering
Service；In addition, unpowered automatic drain metering device described in the utility model, in the high-precision for individual well Produced Liquid, gas
When metering, crude oil water content can be measured, can be used in single seat well site, it can also be used to which measuring station selects well to measure, the utility model side
Method is applicable not only to the metering of oil-gas ratio stabilization, yield stable oil well produced liquid, gas, is applied equally to output fluctuation range
Greatly, greatly, the metering of the extremely unstable oil well produced liquid of operating condition, gas is, it can be achieved that Produced Liquid continuous metering and volume for oil-gas ratio variation
The switching of intermittent dosing.
The above technical characteristic constitutes the embodiments of the present invention, can with stronger adaptability and implementation result
Increase and decrease non-essential technical characteristic, according to actual needs to meet the needs of different situations.
Claims (9)
1. a kind of unpowered automatic drain metering device, it is characterised in that including vertical metering separator and control module, vertical
The top of formula metering separator, which is provided with, carrys out liquid import, has individual well to carry out gas-liquid pipeline carrying out liquid inlet communication, in vertical metering point
Lower part from device is provided with Produced Liquid outlet, has outlet tube line in Produced Liquid outlet, is carrying out the vertical meter above liquid import
It is provided with extraction port on amount separator, is communicated with extraction gas pipeline between extraction port and outlet tube line, in extraction port
It is sequentially serially connected with gas phase flow rate meter and differential pressure control valve on to the extraction gas pipeline of outlet tube line, in adopting for differential pressure control valve both ends
It is provided with differential pressure pressure transmitter on outlet line, exports and produces on the outlet tube line between gas pipeline in Produced Liquid and sequentially go here and there
It is connected to mass flowmenter and fluid level control valve, far transmission level meter, the letter of far transmission level meter are provided on vertical metering separator
Number output end is electrically connected with the first signal input part of control module, the first signal output end and fluid level control valve of control module
Signal input part electrical connection, the signal output end of differential pressure pressure transmitter and the second signal input terminal of control module are electrically connected
It connects, the second signal output end of control module is electrically connected with the signal input part of differential pressure control valve.
2. unpowered automatic drain metering device according to claim 1, it is characterised in that control module is using long-range whole
End unit.
3. unpowered automatic drain metering device according to claim 1 or 2, it is characterised in that individual well come gas-liquid pipeline with
It is communicated with feed liquor bypass line between outlet tube line, is serially connected with valve on feed liquor bypass line, comes on gas-liquid pipeline in individual well
It is serially connected with valve.
4. unpowered automatic drain metering device according to claim 1 or 2, it is characterised in that extraction port and gas phase stream
It is serially connected with extraction air valve on the extraction gas pipeline of meter, is connected on the extraction gas pipeline between extraction air valve and extraction port
It is connected with safety vent pipeline.
5. unpowered automatic drain metering device according to claim 3, it is characterised in that extraction port and gas phase flow rate
It is serially connected with extraction air valve on the extraction gas pipeline of meter, is connected on the extraction gas pipeline between extraction air valve and extraction port
There is safety vent pipeline.
6. unpowered automatic drain metering device according to claim 1 or 2, it is characterised in that gas phase flow rate meter uses whirlpool
Street flowmeter.
7. unpowered automatic drain metering device according to claim 3, it is characterised in that gas phase flow rate meter uses vortex street
Flowmeter.
8. unpowered automatic drain metering device according to claim 4, it is characterised in that gas phase flow rate meter uses vortex street
Flowmeter.
9. unpowered automatic drain metering device according to claim 5, it is characterised in that gas phase flow rate meter uses vortex street
Flowmeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820877533.1U CN208546164U (en) | 2018-06-07 | 2018-06-07 | Unpowered automatic drain metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820877533.1U CN208546164U (en) | 2018-06-07 | 2018-06-07 | Unpowered automatic drain metering device |
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| Publication Number | Publication Date |
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| CN208546164U true CN208546164U (en) | 2019-02-26 |
Family
ID=65420877
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820877533.1U Active CN208546164U (en) | 2018-06-07 | 2018-06-07 | Unpowered automatic drain metering device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625848A (en) * | 2018-06-07 | 2018-10-09 | 中国石油天然气集团公司 | Unpowered automatic drain metering device and its metering method |
| CN114622894A (en) * | 2022-04-14 | 2022-06-14 | 东营同博石油电子仪器有限公司 | Unpowered automatic liquid discharge metering device |
-
2018
- 2018-06-07 CN CN201820877533.1U patent/CN208546164U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108625848A (en) * | 2018-06-07 | 2018-10-09 | 中国石油天然气集团公司 | Unpowered automatic drain metering device and its metering method |
| CN108625848B (en) * | 2018-06-07 | 2024-03-01 | 中国石油天然气集团公司 | Unpowered automatic liquid discharge metering device and metering method thereof |
| CN114622894A (en) * | 2022-04-14 | 2022-06-14 | 东营同博石油电子仪器有限公司 | Unpowered automatic liquid discharge metering device |
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