CN105840169A - Pried type oil-gas-separation single-well metering device and metering method thereof - Google Patents
Pried type oil-gas-separation single-well metering device and metering method thereof Download PDFInfo
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- CN105840169A CN105840169A CN201610366714.3A CN201610366714A CN105840169A CN 105840169 A CN105840169 A CN 105840169A CN 201610366714 A CN201610366714 A CN 201610366714A CN 105840169 A CN105840169 A CN 105840169A
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/34—Arrangements for separating materials produced by the well
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
Abstract
The invention relates to single-well metering of an oil well, in particular to a pried type oil-gas-separation single-well metering device and a metering method thereof. The pried type oil-gas-separation single-well metering device comprises a gas phase and liquid phase separating part, a gas phase and liquid phase controlling system part and a crude oil associated gas metering part. Oil (multiphase flow) from the oil well enters a rotational-flow divider to enable gas phase and liquid phasefluids to be respectively exhausted from the top and the bottom of a separator, gas phase and liquid phase can be fully separated, and the gas phase and the liquid phase which are separated are metered through a single-phase-flow mass flowmeter. The pried type oil-gas-separation single-well metering device achieves single-well continuous metering and queueteam continuous metering, solves the problems of discontinuity and inaccuracy of a traditional metering method, overcomes the technical blank that existing multiphase flowmeterscan't measure small flow, meets the requirement that the single-well oil-gas-water meter accuracy is +/-10%, improves anoil well produced water multiphase-flow oil mixed-phase conveying technique, solves the problem that a remote oil well can't be metered, meets the requirement of oil well development and is simple in metering method and reliable in performance.
Description
Technical field
The present invention relates to oil well one-well metering, be specifically related to a kind of skid-mounted type Oil-gas Separation single well metering device and metering method thereof.
Background technology
Along with the increase of Changqing oilfields exploitation dynamics, current oil well one-well metering technology cannot meet the requirement of Changqing oilfields development, be primarily present following problems:
1, automatic continuous measuring technical matters is compact, and working place is narrow, is unfavorable for daily production and the maintenance of workman；Mass flowmenter precision is easily bullied, and to cause error big for visionary hope pilot；Owing to the scale problems with miserable water, hot washing process flow process can affect the accuracy of metering, the second order error that watering flow meter measures can be caused simultaneously.
2, rod-pumped well using effect is undesirable has much room for improvement technically for Pumping with gushing, oil pipe leakage etc. for well head merit figure gauging technology.
3, opposite sex increase-volume tipping bucket gauging technology, tipping bucket long-term work may cause bolt looseness or bearing wear, the phenomenon that metering is forbidden, tipping bucket does not turns over occurs；In tipping bucket edge wax deposition, volume and the position of centre of gravity of tipping bucket is changed than relatively low winter, crude oil in temperature.
4, Weighing car gauging technology is only applicable to low production fluid individual well, it is impossible to long-time gauging continuously, and cannot measure gas production.This device another uses the balance that manual type controls measuring tank and well head pressure, it is impossible to realize accurately controlling.
In sum, a kind of new oil well one-well metering technology is needed badly to meet the requirement of Changqing oilfields development.
Summary of the invention
It is an object of the invention to overcome current oil well one-well metering technology, along with the increase of Changqing oilfields exploitation dynamics, the problem that cannot meet the requirement of Changqing oilfields development.
For this, the invention provides a kind of skid-mounted type Oil-gas Separation single well metering device, including filter, gas phase and liquid phase flash trapping stage device, gas phase and liquid phase secondary separation device, surge tank, mass-flow gas meter, liquid crude mass flowmenter, control device and dual volume separator, oil and gas import connects filter by first stop valve, filter outlet is communicated to gas phase and liquid phase flash trapping stage device, gas phase connects surge tank with the gas outlet of liquid phase flash trapping stage device, the liquid outlet of gas phase and liquid phase flash trapping stage device is communicated to gas phase and liquid phase secondary separation device, the liquid outlet of gas phase and liquid phase secondary separation device is communicated to dual volume separator, dual volume separator lower end sets sewage globe valve；
The gas outlet of the outlet of described surge tank, gas phase and the gas outlet of liquid phase secondary separation device and dual volume separator is all communicated to be provided with the pipeline of mass-flow gas meter by control device；The liquid outlet of described dual volume separator is communicated to be provided with the pipeline of liquid crude mass flowmenter by controlling device；
The described pipeline being provided with mass-flow gas meter and be provided with the pipeline of liquid crude mass flowmenter after its end converges, passes sequentially through a check valve and second stop valve, eventually serves as oil gas vent and enter mixed transporting tube line.
Described control device is the purely mechanic connecting move control system of buoyancy control, and including pneumatic operated valve and the hydraulic operated valve of bottom on top, pneumatic operated valve and hydraulic operated valve float interlock coupled structure；
The gas outlet of the outlet of described surge tank, gas phase and the gas outlet of liquid phase secondary separation device and dual volume separator is all communicated to be provided with the pipeline of mass-flow gas meter by the pneumatic operated valve of control device；The liquid outlet of described dual volume separator is communicated to be provided with the pipeline of liquid crude mass flowmenter by controlling the hydraulic operated valve of device.
The pipeline between pipeline, oil gas vent and the second stop valve between described oil and gas import and the first stop valve is connected by a branch pipe(tube), and this branch pipe(tube) arranges the 3rd stop valve.
Supporting on pipeline at described oil and gas import it is provided with water-jacket typ heat exchanger.
Described gas phase and liquid phase flash trapping stage device, gas phase and liquid phase secondary separation device are eddy flow diverter.
Described mass-flow gas meter and liquid crude mass flow are calculated as coriolis mass flowmeters, are respectively the CMF gas phase mass flow meter measuring gas phase and the CMF liquid mass flow meter measuring liquid phase.
Described skid-mounted type Oil-gas Separation single well metering device entirety is fixedly mounted on sled.
The metering method of a kind of described skid-mounted type Oil-gas Separation single well metering device, controls and crude oil measurement including gas phase liquid phase separation, gas phase and liquid phase；
1), gas phase liquid phase separation part: oil well come oily passed sequentially through gas phase and liquid phase flash trapping stage device (4), gas phase and liquid phase secondary separation device and dual volume separator by oil and gas import after be divided into gas phase portion and liquid phase part；
2), gas phase and liquid phase control system part: after oil gas is kept completely separate, all entering and control device, gas is upwardly into control device Pneumatic valve part, and liquid is downwardly into control device pilot operated valve device part；When liquid measure is big, liquid level raises, float due to buoyancy effect with on move, cause pilot operated valve device to open Pneumatic valve and close, liquid phase flows out, and enters and is provided with the pipeline of liquid crude mass flowmenter；Declining when gas flow increases liquid level when liquid measure reduces, float buoyancy reduces decline therewith, and pilot operated valve device is closed, and gas trap is opened, and gas is discharged, and enters the pipeline being provided with mass-flow gas meter；
3), crude oil measurement part: gas phase is measured by mass-flow gas meter, and liquid phase is measured by liquid crude mass flowmenter；Measure rear gas phase and liquid phase has been converged, passed sequentially through check valve and the second stop valve, enter mixed transporting tube line.
Beneficial effects of the present invention: this skid-mounted type Oil-gas Separation single well metering device of present invention offer and metering method thereof, achieve individual well continuous metering and unit's continuous metering, solve the discontinuity of conventional metered dose method and inaccurate, compensate for current multinomial flowmeter amount and cannot measure the technological gap of low discharge, reach the requirement of individual well oil-gas-water metering accuracy ± 10%, the perfect Technology of oil well produced liquid multinomial stream MIXED PHASE TRANSPORTATION IN, metering method is simple, dependable performance, solve remote oil well cannot measure, it is achieved and the demand of the oil field development that coincide.
Accompanying drawing explanation
Below with reference to accompanying drawing, the present invention is described in further details.
Fig. 1 is the Structural assignments schematic diagram of the present invention.
Description of reference numerals: 1, the first stop valve；2, the 3rd stop valve；3, filter；4, gas phase and liquid phase flash trapping stage device；5, gas phase and liquid phase secondary separation device；6, surge tank；7, gas phase mass flow meter；8, liquid crude mass flowmenter；9, device is controlled；10, dual volume separator；11, check valve；12, the second stop valve；13, sewage globe valve；14, stop valve is separated.
Detailed description of the invention
Embodiment 1:
The present embodiment provides a kind of skid-mounted type Oil-gas Separation single well metering device, as shown in Figure 1, including filter 3, gas phase and liquid phase flash trapping stage device 4, gas phase and liquid phase secondary separation device 5, surge tank 6, mass-flow gas meter 7, liquid crude mass flowmenter 8, control device 9 and dual volume separator 10, oil and gas import connects filter 3 by first stop valve 1, filter 3 outlet is to gas phase and liquid phase flash trapping stage device 4, gas phase connects surge tank 6 with the gas outlet of liquid phase flash trapping stage device 4, the liquid outlet of gas phase and liquid phase flash trapping stage device 4 is communicated to gas phase and liquid phase secondary separation device 5, the liquid outlet of gas phase and liquid phase secondary separation device 5 is communicated to dual volume separator 10, dual volume separator 10 lower end sets sewage globe valve 13；
The gas outlet of the outlet of surge tank 6, gas phase and the gas outlet of liquid phase secondary separation device 5 and dual volume separator 10 is all communicated to be provided with the pipeline of mass-flow gas meter 7 by control device 9；The liquid outlet of described dual volume separator 10 is communicated to be provided with the pipeline of liquid crude mass flowmenter 8 by controlling device 9；
The pipeline being provided with mass-flow gas meter 7 and the pipeline being provided with liquid crude mass flowmenter 8, after its end converges, pass sequentially through a check valve 11 and second stop valve 12, eventually serve as oil gas vent and enter mixed transporting tube line.
In the case of single-well crude oil normally measures, close the 3rd stop valve 2 and sewage draining exit stop valve 13, open the first stop valve 1, second stop valve 12 and separation stop valve 14, the oil gas come in from individual well is after filter 3, wax stone in crude oil and sand filtration are fallen, oil gas enters gas phase and liquid phase flash trapping stage device 4, at centrifugal force, a turbination vortex field is formed under the effect of gravity and buoyancy, the oil-water fluid that density the is big vertical tube tube wall that hands down flows to separator bottom, the little gas phase of density rises to separator top along the central authorities of whirlpool, final gas phase enters surge tank 6 from separator top, liquid phase fluid is discharged into gas phase and liquid phase secondary separation device 5 from bottom.Gas phase in surge tank 6 after buffering, by controlling to enter after device 9 mass-flow gas meter 7.Contain a small amount of gas from gas phase and liquid phase flash trapping stage device 4 out liquid phase crude oil, affect the accuracy of crude oil measurement, it is necessary to carry out secondary separation.After entering gas phase and liquid phase secondary separation device 5, carry out secondary separation, same one turbination vortex field of formation under the effect of centrifugal force, gravity and buoyancy, the oil-water fluid that density the is big vertical tube tube wall that hands down flows to separator bottom, the little gas phase of density rises to separator top along the central authorities of whirlpool, final gas phase is from separator top by entering mass-flow gas meter 7 after controlling device 9, and liquid phase fluid enters dual volume separator 10 from bottom.After the further Oil-gas Separation in room on dual volume separator 10, gas is by entering mass-flow gas meter 7 after controlling device 9, liquid enters 10 times rooms of dual volume separator by separating stop valve 14, through a certain amount of storage by entering liquid crude mass flowmenter 8 after controlling device 9.
Gas phase enters mass-flow gas meter 7 by pipeline, utilize Coriolis to measure system and extrapolate associated gas in crude oil, liquid phase crude oil is calculated by liquid mass flow meter 8, utilizes the oil water mixture of section's Leo multi-phase measurement system actual measurement to draw water content and oil content in liquid by corresponding reckoning.From gas phase mass flow meter 7 gas out and the crude oil entrance mixing line after check valve 11 mixes from liquid phase quality effusion meter 8 measurement, the purpose of check valve 11 is that after mixing, oil gas can not reversely flow into, and after mixing, oil gas exits into mixed transporting tube line through the second stop valve 12 from outlet.
Embodiment 2:
The present embodiment is further illustrated controlling device 9, controls the purely mechanic connecting move control system that device 9 is buoyancy control, and including pneumatic operated valve and the hydraulic operated valve of bottom on top, pneumatic operated valve and hydraulic operated valve float interlock coupled structure；
The gas outlet of the outlet of surge tank 6, gas phase and the gas outlet of liquid phase secondary separation device 5 and dual volume separator 10 is all communicated to be provided with the pipeline of mass-flow gas meter 7 by the pneumatic operated valve of control device 9；The liquid outlet of described dual volume separator 10 is communicated to be provided with the pipeline of liquid crude mass flowmenter 8 by controlling the hydraulic operated valve of device 9.
Described gas phase is that gas-liquid controls device 9 Pneumatic valve part because its characteristic gas is upwardly into after oil gas is separated by separator with the effect of liquid phase control part, and liquid is downwardly into control device 9 pilot operated valve device part.Due to vapour-liquid valve use float interlock Coupling Design principle, therefore when liquid measure is big liquid level raise, float due to buoyancy effect with on move, cause pilot operated valve device open Pneumatic valve close, crude oil flow out, carry out crude oil measurement by liquid phase quality effusion meter.Declining when gas phase amount increases liquid level when liquid measure reduces, float buoyancy reduces decline therewith, and pilot operated valve device is closed, and gas trap is opened, and gas is discharged.
Embodiment 3:
The present embodiment is further illustrated on the basis of embodiment 1 and embodiment 2, in the present embodiment, the pipeline between pipeline, oil gas vent and the second stop valve 12 between oil and gas import and the first stop valve 1 is connected by a branch pipe(tube), and this branch pipe(tube) arranges the 3rd stop valve 2.
In the case of single-well crude oil does not measures, closing stop valve 1 and stop valve 12, open stop valve 2, the oil gas come from well head is directly entered mixed transporting tube line through single well pipeline.
Skid-mounted type Oil-gas Separation single well metering device entirety is fixedly mounted on sled.Skid-mounted type Oil-gas Separation metering device can also vehicle-mounted after stop valve 1 and stop valve 12 are laid down can move.
Skid-mounted type Oil-gas Separation metering device both can be installed indoor and outdoor, it is also possible to vehicle-mounted mobile, it is desirable to interior net storey height is at least up to 3 meters, ground is xoncrete structure.It is firm, then by measured oil pipeline correct access device interface that device installation is fixed with buried bolt after putting in place: import master control valve and outlet master control valve.Gas and liquid mass flow meter sensor accurately accessed installing port simultaneously and carries out connection with corresponding mass flowmenter transmitter, and inspection guarantees that wiring is errorless repeatedly, after installation, checking that each flange bolt ensures all locking.Data network teletransmission can be realized by gas phase and liquid phase quality flowmeter transmitters, it is easy to remotely monitor, on far-end main control computer, computer is used to be analyzed instrument measurement parameter processing, automatically generate liquid, gas and water metering curve and production report, provide science to ensure for realizing oil field fine-grained management.
Further, difference according to using environment needs corresponding auxiliary facility, in the case of ambient temperature is low, at import department's supporting water-jacket typ heat exchanger, oil-feed is heated, equipment is carried out heat tracing mode, in case crude oil solidifies to cause in measurement chamber and is again started up difficulty after stopping well, it is ensured that the normal use of equipment.
If the environment that this equipment uses is less than 5 DEG C, and the oil temperature of access arrangement is relatively low, can heat oil-feed at import department's supporting water-jacket typ heat exchanger,
If the environment that this equipment uses is less than 0 DEG C, and the oil temperature of access arrangement is relatively low, at import department's supporting water-jacket typ heat exchanger, oil-feed can be heated, equipment is carried out heat tracing mode, in case crude oil solidifies to cause in measurement chamber and is again started up difficulty after stopping well, it is ensured that the normal use of equipment.
In the present invention, gas phase and liquid phase flash trapping stage device 4, gas phase and liquid phase secondary separation device 5 are eddy flow diverter, through design, Main Function is that oil well oily (multiphase flow) enters eddy flow diverter, a turbination vortex field is formed under the effect of centrifugal force, gravity and buoyancy, the oil-water fluid that density the is big vertical tube tube wall that hands down flows to separator bottom, the little gas phase of density rises to separator top along the central authorities of whirlpool, and final gas phase and liquid phase fluid are discharged from separator top and bottom respectively.Purpose is without gas with less containing gas in crude oil.
Embodiment 4:
The present embodiment is on the basis of above three embodiment, mass-flow gas meter 7 and liquid crude mass flowmenter 8 are described in detail, mass-flow gas meter 7 and liquid crude mass flowmenter 8 are coriolis mass flowmeters, are respectively the CMF mass-flow gas meter measuring gas and the CMF liquid mass flow meter measuring liquid phase.
Described mass-flow gas meter 7 and liquid crude mass flowmenter 8 effect are that fluid is after separator, it is divided into gas phase and liquid phase two states, gas phase is measured by CMF gas phase mass flow meter, can the measuring of gas flow depend on whether to reach the mass flow value of regulation, owing to the density of gas is low, it is necessary to can be only achieved under the highest pressure and the highest flow velocity.Liquid phase is measured by CMF liquid mass flow meter, CMF is made up of double-tube type flow transducer and transducer (or flow computer) two parts, double-tube type can reduce the impact in the sensitivity of extraneous vibration interference and crude oil containing a small amount of associated gas, easily realize the measurement of phase contrast, CMF directly measures mass flow, has the highest measuring accuracy, and CMF main measurement parameter is mass flow, second measurement parameter is fluid density, the most additional measurement fluid temperature (F.T.).Also can be derived by mass flow and fluid density and measure the concentration of solute in two-constituent solution.The oil water mixture i.e. utilizing section's Leo multi-phase measurement system actual measurement draws water content and oil content in liquid by corresponding accurately reckoning.Make it have long service life during mounting design as far as possible, for removing premature abrasion and producing the solid content of measurement error and entrained gas, swim fixed filter on a sensor with pipeline condition by fluid or gas such as separates at the protection device.
The detailed description of CMF coriolis mass flowmeters: AMF type Coriolis mass flowmeter is a kind of novel instrument directly critically measuring liquid mass flow, it it is the intelligent precise mass flowmeter of a kind of advanced person, it has the more unexistent advantages of other effusion meter, and certainty of measurement is only relevant with detection time difference signal about sensor.Main structure body uses two U-tube side by side, allows the bent back portion split-phase of two pipes vibrate to slight, then the straight tube of both sides can and then vibrate, and i.e. they can be drawn close simultaneously or open simultaneously, i.e. the vibration of two pipes is to synchronize, symmetrical.This effusion meter can be used directly to the parameter such as the mass flow of measurement pipeline medium and two kinds of respective concentration of liquid of total amount, volume flow and total amount, the density of medium, temperature, the concentration of solution and more uniform mixing.Even if the performance of excellence also can be shown under severe working environment.There is no movable part inside it, be not required to the installation of complexity, working condition is not had the requirement of harshness yet.Having capacity of resisting disturbance strong, certainty of measurement is high, range ratio is big, stable and reliable in work, low to installation requirement, convection cell conditions dictate is low, the advantages such as the pressure loss is little, and easy cleaning, possesses from air emptying function；It is applicable to real-time online measuring and real time and on line monitoring.Its basic technical indicator is reached advanced world standards, has boundless development and application prospect.
CMF coriolis mass flowmeters Main Feature:
1, directly measuring the mass flow of fluids within pipes, accuracy of measurement is high, reproducible, can directly measure liquid mass flow in the range of relatively large journey.
2, the degree of accuracy of metering is high: certainty of measurement is 0.15；0.2；0.5；1.0 level.Repeatability error is generally the 1/4～2/3 of elementary error；Range of flow degree major part is between (10:1)～(50:1).
3, stable and reliable in work: the internal clear of fluid measurement pipe and movable part, thus reliability is high, the life-span is long.Zero point unstability is between ± (0.01～0.04) %FS.
4, the fluid media (medium) face width adapted to: in addition to the homogeneous (uniform) fluid of general viscosity, also can measure high viscosity fluid；It is possible not only to measure the fluid parameter of single solution, it is also possible to measure multiphase flow；No matter medium is laminar flow or turbulent flow, does not affects its certainty of measurement.
5, liquid crystal display: instantaneous delivery, integrated flux, temperature, density.
6, output signal: 4-20mA, pulse exports, RS485 communication.
7, gas flow can measure the mass flow value depending on whether to reach regulation, owing to the density of gas is low, it is necessary to can be only achieved under the highest pressure and the highest flow velocity.When measuring low-pressure gas, measurement error is less than 2%.
8, complete machine uses explosion-proof, corrosion protection design, adapts to various work condition environment, especially explosion-proof environment Exd (ia) IICT6Gb.
Embodiment 5:
The present embodiment provides the metering method of a kind of described skid-mounted type Oil-gas Separation single well metering device, controls and crude oil measurement including gas phase liquid phase separation, gas phase and liquid phase；
1), gas phase liquid phase separation part: oil well come oily passed sequentially through gas phase liquid phase flash trapping stage device 4, gas phase liquid phase secondary separation device 5 and dual volume separator 10 by oil and gas import after be divided into gas phase portion and liquid phase part.
Oil well comes oily (multiphase flow) and enters gas phase liquid phase flash trapping stage device 4, gas phase liquid phase secondary separation device 5 and dual volume separator 10, a turbination vortex field is formed under the effect of centrifugal force, gravity and buoyancy, the oil-water fluid that density the is big vertical tube tube wall that hands down flows to separator bottom, the little gas phase of density rises to separator top along the central authorities of whirlpool, and final gas phase and liquid phase fluid are discharged from separator top and bottom respectively.Separator liquid level, gas phase and liquid phase flow, pressure reduction have self-operated type gas-liquid separator controller to carry out the most reliable control, it is ensured that the steady operation of separator, it is achieved gas-liquid two is sufficiently separated, gas phase and liquid phase after separation are measured by single-phase flow mass flowmenter.
2), gas phase and liquid phase control system part: after oil gas is kept completely separate, all entering and control device 9, gas is upwardly into control device 9 Pneumatic valve part, and liquid is downwardly into control device 9 pilot operated valve device part；When liquid measure is big, liquid level raises, float due to buoyancy effect with on move, cause pilot operated valve device to open Pneumatic valve and close, liquid phase flows out, and enters and is provided with the pipeline of liquid crude mass flowmenter 8；Declining when tolerance increases liquid level when liquid measure reduces, float buoyancy reduces decline therewith, and pilot operated valve device is closed, and gas trap is opened, and gas is discharged, and enters the pipeline being provided with mass-flow gas meter 7.
3), crude oil measurement part: gas phase is measured by mass-flow gas meter 7, and liquid phase is measured by liquid crude mass flowmenter 8；Measure rear gas phase and liquid phase has been converged, passed sequentially through check valve 11 and the second stop valve 12, enter mixed transporting tube line.
This method of the present embodiment, moreover it is possible to add some equipment automatically controlling transmission on device, is connected mass-flow gas meter 7 with the computer of remote port by adding flow transmitter with liquid crude mass flowmenter 8, it is achieved remotely monitoring and judgement.
1, measuring accuracy is high；
2, range ability is wide, is adapted to the metering of single-well crude oil, it is also possible to measure the measurement of multiphase flow under other various media；
3, automaticity is high, it is not necessary to manually participate in；
4, safe and reliable, use pipe design to remove positive displacement separator, regulation valve equal pressure device；
5, rational in infrastructure, floor space is little；Computer can be used to be analyzed instrument measurement parameter processing, automatically generate liquid, gas and water metering curve and production report, provide science to ensure for realizing oil field fine-grained management；
6, safety is high, instead of conventional volume formula separator, reduces safety hazards in station；
7, the suitability of Mobile metering device is wide, convenient and swift to the one-well metering of remote well；
8, device can realize data network teletransmission, it is simple to remotely monitors.
In sum, present configuration is novel, achieve individual well continuous metering and unit's continuous metering, solve the discontinuity of conventional metered dose method and inaccurate, compensate for current multinomial flowmeter amount and cannot measure the technological gap of low discharge, reached the requirement of individual well oil-gas-water metering accuracy ± 10%, the perfect Technology of oil well produced liquid multinomial stream MIXED PHASE TRANSPORTATION IN, metering method is simple, dependable performance, and solving remote oil well cannot measure, it is achieved and the demand of the oil field development that coincide.
Exemplified as above is only the illustration to the present invention, is not intended that the restriction to protection scope of the present invention, within the every and same or analogous design of the present invention belongs to protection scope of the present invention.
Claims (8)
- null1. a skid-mounted type Oil-gas Separation single well metering device，Including filter (3)、Gas phase and liquid phase flash trapping stage device (4)、Gas phase and liquid phase secondary separation device (5)、Surge tank (6)、Mass-flow gas meter (7)、Liquid crude mass flowmenter (8)、Control device (9) and dual volume separator (10)，It is characterized in that: oil and gas import connects filter (3) by first stop valve (1)，Filter (3) outlet is to gas phase and liquid phase flash trapping stage device (4)，Gas phase connects surge tank (6) with the gas outlet of liquid phase flash trapping stage device (4)，The liquid outlet of gas phase and liquid phase flash trapping stage device (4) is communicated to gas phase and liquid phase secondary separation device (5)，The liquid outlet of gas phase and liquid phase secondary separation device (5) is communicated to dual volume separator (10)，Dual volume separator (10) lower end sets sewage globe valve (13)；The gas outlet of the described gas outlet of surge tank (6), gas phase and the gas outlet of liquid phase secondary separation device (5) and dual volume separator (10) is all communicated to be provided with the pipeline of mass-flow gas meter (7) by control device (9)；The liquid outlet of described dual volume separator (10) is communicated to be provided with the pipeline of liquid crude mass flowmenter (8) by controlling device (9)；The described pipeline being provided with mass-flow gas meter (7) and be provided with the pipeline of liquid crude mass flowmenter (8) after its end converges, pass sequentially through a check valve (11) and second stop valve (12), eventually serve as oil gas vent and enter mixed transporting tube line.
- 2. skid-mounted type Oil-gas Separation single well metering device as claimed in claim 1, it is characterized in that: described control device (9) is the purely mechanic connecting move control system of buoyancy control, including pneumatic operated valve and the hydraulic operated valve of bottom on top, pneumatic operated valve and hydraulic operated valve float interlock coupled structure；The gas outlet of the described outlet of surge tank (6), gas phase and the gas outlet of liquid phase secondary separation device (5) and dual volume separator (10) is all communicated to be provided with the pipeline of mass-flow gas meter (7) by the pneumatic operated valve of control device (9)；The liquid outlet of described dual volume separator (10) is communicated to be provided with the pipeline of liquid crude mass flowmenter (8) by controlling the hydraulic operated valve of device (9).
- 3. skid-mounted type Oil-gas Separation single well metering device as claimed in claim 1 or 2, it is characterized in that: the pipeline between pipeline, oil gas vent and the second stop valve (12) between described oil and gas import and the first stop valve (1) is connected by a branch pipe(tube), and this branch pipe(tube) arranges the 3rd stop valve (2).
- 4. skid-mounted type Oil-gas Separation single well metering device as claimed in claim 3, it is characterised in that: supporting on pipeline at described oil and gas import it is provided with water-jacket typ heat exchanger.
- 5. skid-mounted type Oil-gas Separation single well metering device as claimed in claim 1, it is characterised in that: described gas phase and liquid phase flash trapping stage device (4), gas phase and liquid phase secondary separation device (5) are eddy flow diverter.
- 6. skid-mounted type Oil-gas Separation single well metering device as claimed in claim 1, it is characterized in that: described mass-flow gas meter (7) and liquid crude mass flowmenter (8) are coriolis mass flowmeters, be respectively the CMF mass-flow gas meter measuring gas and the CMF liquid mass flow meter measuring liquid.
- 7. skid-mounted type Oil-gas Separation single well metering device as claimed in claim 1, it is characterised in that: described skid-mounted type Oil-gas Separation single well metering device entirety is fixedly mounted on sled.
- 8. the metering method of the skid-mounted type Oil-gas Separation single well metering device as described in any one in claim 1-7, it is characterised in that: include that gas phase liquid phase separation, gas phase and liquid phase control and crude oil multiphase flow metering；1), gas phase liquid phase separation part: oil well come oily passed sequentially through gas phase and liquid phase flash trapping stage device (4), gas phase and liquid phase secondary separation device (5) and dual volume separator (10) by oil and gas import after be divided into gas phase portion and liquid phase part；2), gas phase and liquid phase control system part: after oil gas is kept completely separate, all entering and control device (9), gas phase is upwardly into control device (9) Pneumatic valve part, and liquid phase is downwardly into control device (9) pilot operated valve device part；When liquid measure is big, liquid level raises, float due to buoyancy effect with on move, cause pilot operated valve device to open Pneumatic valve and close, liquid phase flows out, and enters and is provided with the pipeline of liquid crude mass flowmenter (8)；Declining when gas flow increases liquid level when liquid measure reduces, float buoyancy reduces decline therewith, and pilot operated valve device is closed, and gas trap is opened, and gas is discharged, and enters the pipeline being provided with mass-flow gas meter (7)；3), crude oil measurement part: gas phase is measured by mass-flow gas meter (7), and liquid phase is measured by liquid crude mass flowmenter (8)；Measure rear gas phase and liquid phase has been converged, passed sequentially through check valve (11) and the second stop valve (12), enter mixed transporting tube line.
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| CN201610366714.3A CN105840169A (en) | 2016-05-30 | 2016-05-30 | Pried type oil-gas-separation single-well metering device and metering method thereof |
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| CN201610366714.3A CN105840169A (en) | 2016-05-30 | 2016-05-30 | Pried type oil-gas-separation single-well metering device and metering method thereof |
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| CN106593413A (en) * | 2017-02-24 | 2017-04-26 | 北京华远众科科技有限公司 | Cluster well type single well metering device and method for calculating well yield |
| CN107503736A (en) * | 2017-09-30 | 2017-12-22 | 陈勇 | A kind of multistage separating single well metering device |
| CN108339326A (en) * | 2017-01-23 | 2018-07-31 | 蒋京 | Small-sized gas-liquid separator |
| CN108547608A (en) * | 2018-02-13 | 2018-09-18 | 中国石油天然气集团公司 | High-precision CO2Drive high gas-liquid ratio frothy crude oil metering device and metering method |
| CN109882154A (en) * | 2019-04-19 | 2019-06-14 | 新疆成和天利能源科技股份有限公司 | A kind of single well metering device |
| CN110242279A (en) * | 2019-07-05 | 2019-09-17 | 荆州市明德科技有限公司 | Single-well crude oil three-phase flow metering device and its method |
| CN110541694A (en) * | 2019-10-12 | 2019-12-06 | 克拉玛依胜利高原机械有限公司 | Wellhead skid-mounted process assembly |
| CN110553148A (en) * | 2019-08-02 | 2019-12-10 | 西安长庆科技工程有限责任公司 | Electromagnetic heating oil-gas mixed transportation method |
| CN110566179A (en) * | 2019-09-16 | 2019-12-13 | 华油惠博普科技股份有限公司 | Intelligent integrated metering device |
| CN112832739A (en) * | 2021-01-06 | 2021-05-25 | 中国石油天然气股份有限公司 | Gas-liquid non-separation online metering device and method for low-permeability gas-permeable well |
| CN113550730A (en) * | 2021-09-18 | 2021-10-26 | 胜利油田胜机石油装备有限公司 | Multiphase metering mixed transportation method and multiphase metering mixed transportation system |
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| CN108339326A (en) * | 2017-01-23 | 2018-07-31 | 蒋京 | Small-sized gas-liquid separator |
| CN106593413A (en) * | 2017-02-24 | 2017-04-26 | 北京华远众科科技有限公司 | Cluster well type single well metering device and method for calculating well yield |
| CN107503736A (en) * | 2017-09-30 | 2017-12-22 | 陈勇 | A kind of multistage separating single well metering device |
| CN108547608B (en) * | 2018-02-13 | 2023-09-29 | 中国石油天然气集团公司 | High precision CO 2 Device and method for metering foam crude oil with high gas-liquid ratio in driving mode |
| CN108547608A (en) * | 2018-02-13 | 2018-09-18 | 中国石油天然气集团公司 | High-precision CO2Drive high gas-liquid ratio frothy crude oil metering device and metering method |
| CN109882154A (en) * | 2019-04-19 | 2019-06-14 | 新疆成和天利能源科技股份有限公司 | A kind of single well metering device |
| CN109882154B (en) * | 2019-04-19 | 2023-11-14 | 新疆成和天利能源科技股份有限公司 | Single well metering device |
| CN110242279A (en) * | 2019-07-05 | 2019-09-17 | 荆州市明德科技有限公司 | Single-well crude oil three-phase flow metering device and its method |
| CN110553148A (en) * | 2019-08-02 | 2019-12-10 | 西安长庆科技工程有限责任公司 | Electromagnetic heating oil-gas mixed transportation method |
| CN110566179A (en) * | 2019-09-16 | 2019-12-13 | 华油惠博普科技股份有限公司 | Intelligent integrated metering device |
| CN110541694A (en) * | 2019-10-12 | 2019-12-06 | 克拉玛依胜利高原机械有限公司 | Wellhead skid-mounted process assembly |
| CN112832739A (en) * | 2021-01-06 | 2021-05-25 | 中国石油天然气股份有限公司 | Gas-liquid non-separation online metering device and method for low-permeability gas-permeable well |
| CN113550730B (en) * | 2021-09-18 | 2021-12-17 | 胜利油田胜机石油装备有限公司 | Multiphase metering mixed transportation system and multiphase metering mixed transportation method |
| CN113550730A (en) * | 2021-09-18 | 2021-10-26 | 胜利油田胜机石油装备有限公司 | Multiphase metering mixed transportation method and multiphase metering mixed transportation system |
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