CN206246115U - A kind of High water cut low yield gas oil well liquid-producing three-phase metering mechanism - Google Patents
A kind of High water cut low yield gas oil well liquid-producing three-phase metering mechanism Download PDFInfo
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- CN206246115U CN206246115U CN201621092038.7U CN201621092038U CN206246115U CN 206246115 U CN206246115 U CN 206246115U CN 201621092038 U CN201621092038 U CN 201621092038U CN 206246115 U CN206246115 U CN 206246115U
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Abstract
The utility model provides a kind of High water cut low yield gas oil well liquid-producing three-phase metering mechanism, wherein device includes the one-level swirl-flow devices, gas core probe tube, two grades of swirl-flow devices, steam trap, spiral-flow type oil water separator, the filter net type oil expeller that blocks water, drainage orifice plate, the oily surge tanks of separation that are sequentially connected from bottom to top, and gas-liquid cyclone separator is set in the gas core probe tube.The utility model utilizes Multi-stage spiral device, using the means of eddy flow forced flow, increased oilfield produced fluid and separates the scope of application, is applicable not only to stratified flow, wavy stratified flow patterns under low flow velocity, applies also for annular flow and slug flow under high flow rate.Also include isolating gas temperature sensor and pressure sensor, the temperature and pressure sensor of main pipeline profit, to obtain temperature value and pressure value, density, volume parameter to oil gas water three phase fluid are verified.
Description
Technical field
The utility model is related to oil field three-phase flow measurement technology, especially a kind of High water cut low yield gas oil well liquid-producing three-phase meter
Amount device.
Background technology
In oilfield process, oil well produced liquid mainly contains crude oil, associated gas, water etc., and production fluid is in downhole oil
In pipe and surface duct in flow process, the measurement of its flow and phase content belongs to typical multiphase flow metering problem.Due to many
The complexity for mutually flowing, the development of oil gas water multiphase gauge has larger difficulty, presently, there are grinding for various multi-phase flowmeters
Technology path processed.
In two-phase flow measurement technology, partition method is to be applied to multiphase flow method of testing earliest, but because its separation is tired
Difficult, volume is big, and it is big that difficulty is promoted at scene.As Chinese patent ZL200710046862.8, ZL200810112558.3 etc. are adopted
With tun as oil gas water three phase piece-rate system, then in the method using single-phase measurement.Because this method is many
After oil gas water three phase fluid is separated into single phase gas and oil and water in phase fluid, then respectively mutually flowed with single-phase flow flowmeter measurement respectively
Amount, thus avoid influence of the factors such as variations in flow patterns and flowing instability to measuring.But in actual multiphase fluid measurements, a lot
Fluid cannot accomplish sometimes it is cost-effective be kept completely separate, this multiphase measurement brings many troubles.On this basis
Many other forms being kept completely separate are generated, United States Patent (USP) US5390547 and US7311001 disclose one kind and utilize multiphase flow
Body pipeline constitutes a kind of piece-rate system measuring system in itself, and the system abandons traditional separator, but using external rotation
Wind separate mode, therefore substantially it and the not tangible difference of traditional partition method.On this basis, researcher uses
Split-phase isolation technics, such as Chinese patent ZL98113068.2 reduce separator size, but be not by whole using the method that is partially separated
Three-phase flow is completely separated into single-phase flow, have impact on measuring accuracy.United States Patent (USP) US6128962 also uses a kind of similar shunting
Split-phase type measuring method, but when flow very little (low air void or the high-moisture percentage) of the liquid phase in two phase flow or gas phase, warp
Shunting is crossed, the gas phase or oil phase flow from separator outflow are just smaller, it is impossible to represent entirety, cause error in dipping big.In recent years,
With correlative study work progress, multiphase detection new technology continuously emerge, with use radioactive on-line testing mode for
Main, also have carries out on-line measurement by the way of electric or magnetic, but due to radioactive reason, price is high, Maintenance Difficulty, and scene pushes away
Extensively it is restricted.Therefore, method is kept completely separate at present remains most reliable and precision highest multiphase flow on-line testing technique.
The content of the invention
The purpose of this utility model is to provide a kind of High water cut low yield gas oil well liquid-producing three-phase metering mechanism, is revolved using multistage
Stream device, using the means of eddy flow forced flow, increased oilfield produced fluid and separates the scope of application, be applicable not only under low flow velocity
Stratified flow, wavy stratified flow patterns, apply also for the annular flow and slug flow under high flow rate.Also include isolating gas temperature sensing
Device and pressure sensor, the temperature and pressure sensor of main pipeline profit, to obtain temperature value and pressure value, to oil gas water three phase
The density of fluid, volume parameter are verified.
The purpose of this utility model can be achieved by the following technical measures：
The High water cut low yield gas oil well liquid-producing three-phase metering mechanism include be sequentially connected from bottom to top one-level swirl-flow devices,
Gas core probe tube, two grades of swirl-flow devices, steam trap, spiral-flow type oil water separator, the filter net type oil expeller that blocks water, drainage orifice plate, point
From oily surge tank, gas-liquid cyclone separator is set in the gas core probe tube.
The purpose of this utility model can also be achieved by the following technical measures：
The gas-liquid cyclone separator lower end connects profit discharge pipe, upper end connection gas phase discharge pipe, the gas phase discharge
Pipe is reconnected and is blending ttom of pipe end；The steam trap lower port is oily core sample tap, and the steam trap side openings simultaneously pass through
Separation water outlet pipe connection mixing outlet pipe middle part；Separate oily surge tank top and connection mixing outlet pipe is exported by oil phase.
Gas phase drag part, air water resistance piece are set in the mixing outlet pipe, and the gas phase drag part is higher than gas phase discharge pipe
With the connector of mixing outlet pipe, less than separation water outlet pipe and the connector of mixing outlet pipe, the air water resistance piece is higher than separation water
The connector of outlet pipe and mixing outlet pipe, exports and mixes the connector of outlet pipe less than oil phase.
It is profit temperature and pressure measuring section between the gas core probe tube and two grades of swirl-flow devices, profit temperature and pressure measuring section sets temperature
Degree sensor and pressure sensor；Gas phase flow rate meter, gas phase temperature meter, gaseous pressure meter are set on the gas phase discharge pipe；Institute
State setting aqueous phase stream gauge in separation water outlet pipe；Oil phase flowmeter is set in the oil phase outlet.
The temperature sensor, pressure sensor, gas phase flow rate meter, gas phase temperature meter, gaseous pressure meter, aqueous phase stream amount
Meter, oil phase flowmeter are connected with data acquisition and metering system.
Oil mixing with water resistance piece is set between the gas-liquid cyclone separator and two grades of swirl-flow devices.
The gas-liquid cyclone separator supporting plate one is supported, and the steam trap supporting plate two is supported.
The utility model has the advantages that：
The utility model utilizes Multi-stage spiral device, using the means of eddy flow forced flow, increased oilfield produced fluid point
From the scope of application, stratified flow, wavy stratified flow patterns under low flow velocity are applicable not only to, apply also for annular flow and bullet under high flow rate
Shape stream.
The complicated oil gas water production fluid branch of flow pattern is organized into by desired annular flow by Multi-stage spiral device, while adopting
Gas phase, water phase and oil phase are separated in pipeline with unconventional hydraulic cyclone method, separator is reduced, it is ensured that the essence of test
Degree.
Also include isolating gas temperature sensor and pressure sensor, the temperature and pressure sensor of main pipeline profit,
To obtain temperature value and pressure value, density, volume parameter to oil gas water three phase fluid are verified.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment；
Fig. 2 is swirl-flow devices schematic diagram；
Fig. 3 is the flow pattern after swirl-flow devices eddy flow；
Fig. 3-1 is the A-A profiles of Fig. 3；
Fig. 3-2 is the B-B profiles of Fig. 3；
Fig. 4 is the C-C profiles of Fig. 1；
Fig. 5 is steam trap structure chart.
In figure：1st, liquid entrance is produced；2nd, one-level swirl-flow devices；3rd, gas core probe tube；4th, gas-liquid cyclone separator；5th, support
Plate one；6th, profit discharge pipe；7th, gas phase discharge pipe；8th, gas phase temperature and pressure measuring section；9th, gas phase flow rate meter；10th, profit temperature and pressure measurement
Section；11st, oil mixing with water resistance piece；12nd, separation water outlet pipe；13rd, two grades of swirl-flow devices；14th, oily core sample tap；15th, aqueous phase stream amount
Meter；16th, supporting plate two；17th, separation water outlet pipe；18th, steam trap；19th, spiral-flow type oil water separator；20th, block water filter net type oil removing
Device；21st, drainage orifice plate；22nd, oily surge tank is separated；23rd, oil phase flowmeter；24th, oil phase outlet；25th, data acquisition and metering system
System；26th, gas phase drag part；27th, air water resistance piece；28th, outlet pipe is mixed；61st, the common flow pattern of production fluid；62nd, swirl-flow devices；63、
Ring-type flow pattern.
Specific embodiment
Relevant detailed description of the present utility model and technology contents, coordinate brief description of the drawings as follows, but accompanying drawing only provides ginseng
Examine and purposes of discussion, not for being any limitation as to the utility model.
According to Fig. 1-Fig. 5, wherein Fig. 3 passes through rotating dress to represent oilfield produced fluid different flow patterns in vertical circular pipe
Put the flow pattern schematic diagram of the annular flow that gas-liquid or profit are converted into after 4；Fig. 3-1 illustrates to represent the stratified flow that pipeline section shows
Figure, the ring-type flow diagram that Fig. 3-2 shows for expression pipeline section.
High water cut low yield gas oil well liquid-producing three-phase metering mechanism, including be sequentially connected from bottom to top one-level swirl-flow devices 2,
3, two grades of swirl-flow devices 13 of gas core probe tube, steam trap 18, spiral-flow type oil water separator 19, the filter net type oil expeller 20 that blocks water, filter
Water hole plate 21, the oily surge tank 22 of separation, set gas-liquid cyclone separator 4 in the gas core probe tube 3.
The gas-liquid cyclone separator lower end connection profit discharge pipe 6, upper end connection gas phase discharge pipe, the gas phase discharge
Pipe 7 is reconnected in mixing outlet pipe 28 bottom；The steam trap lower port is oily core sample tap 14, and the steam trap side openings are simultaneously
Mixing outlet pipe middle part is connected by separation water outlet pipe 17；The oily top of surge tank 22 is separated to be blended by the connection of oil phase outlet 24
Pipe.
Gas phase drag part 26, air water resistance piece 27 is set in the mixing outlet pipe, and the gas phase drag part is arranged higher than gas phase
Outlet pipe and the connector for mixing outlet pipe, less than separation water outlet pipe and the connector of mixing outlet pipe, the air water resistance piece is higher than to divide
From water outlet pipe and the connector of mixing outlet pipe, the connector of outlet pipe is exported and mixed less than oil phase.
It is profit temperature and pressure measuring section 10 between the gas core probe tube and two grades of swirl-flow devices, profit temperature and pressure measuring section is set
Temperature sensor and pressure sensor；Gas phase flow rate meter 9, gas phase temperature meter, gaseous pressure meter are set on the gas phase discharge pipe,
The position on gas phase discharge pipe wherein residing for gas phase temperature meter, gaseous pressure meter is gas phase temperature and pressure measuring section 8；The separation water
Aqueous phase stream gauge 15 is set in outlet pipe 7；Oil phase flowmeter 23 is set in the oil phase outlet 24.
The temperature sensor, pressure sensor, gas phase flow rate meter, gas phase temperature meter, gaseous pressure meter, aqueous phase stream amount
Meter, oil phase flowmeter are connected with data acquisition and metering system 25.
Oil mixing with water resistance piece 11 is set between the gas-liquid cyclone separator and two grades of swirl-flow devices.
The gas-liquid cyclone separator is supported with supporting plate 1, and the steam trap is supported with supporting plate 2 16.
Data acquisition and metering system：Mature technology, principle and processing can be used for reference, and data acquisition circuit can use for reference Shengli Oil
Win company, model in Tiandong County：XDY, it is also possible to use for reference, article：The research of SXL -1 type oil-gas-water three phase flow quantity gauge, magazine,
Pipe technology and equipment, 1996；
Gas-liquid cyclone separator：Mature technology, principle and processing can be used for reference, and concrete structure can be used for reference
CN200820026737.0, manufacturer, plum section valve industry, model QF；
Spiral-flow type oil water separator：Mature technology, principle and processing can be used for reference, and concrete structure can be used for reference
CN201210110617.X, prosperous seawater power cyclone, model XCIIF150；
Block water filter net type oil expeller：Mature technology, principle and processing can be used for reference, and manufacturer is Rui Makebao, model
R150914。
The oil gas water three phase of the produced liquid in oil well of High water cut low yield gas is separated and metering system, and its core is to use multiple valve
The oil gas water three phase production fluid of High water cut is rectified into inward eddy device the gas core of standard and the flow pattern of oil mixing with water pendular ring, then
The gas phase of production fluid and profit liquid phase are separated using the compact gas-liquid hydrocyclone in pipeline, is isolated
Gas is drawn by special pipeline, and carries out gas exact volume or mass metrology using differential pressure or thermal mass flow meter etc..
The oil mixing with water liquid isolated from gas phase is after the outlet of separator bottom backs into main pipeline internal resistance part, then use
The strength rotation that the oil water mixture that two grades of swirl-flow devices of optimization design there will be density contrast is carried out in pipeline, by density contrast
Profit between 0.1-0.2 carries out eddy flow separation, forms that inner ring is oily core and outer shroud is the standard ring-type flow of water ring, utilizes
The principle of kinetic energy probe tube is sampled to oily core therein, wherein inevitably contain small part water in the oily core for taking out,
At this moment carry the oil stream of some aqueous phase by small-sized piece-rate system in pipe, coordinated using eddy flow principle, Gravity Separation principle and
Block water screen pack and filter opening separates a small amount of water, and gone out by the moisture that steam trap will be isolated and mix with the water in supervisor
And flowed out by separation water outlet pipe, wherein carry out online water equipped with single-phase pressure difference or electromagnetic flowmeter mutually measuring.And upper part
The crude oil for separating out is exported by oil phase and flowed out, wherein equipped with single-phase differential pressure flowmeter, can measure the volume flow of sing-phase crude oil
Amount.The flow that gas, water and oil after single-phase measurement are installed from top to bottom passes sequentially through resistance piece and is mixed, it is ensured that each phase point
Fluid mixing after has no effect in original supervisor and waits kinetic energy theory.
Embodiment 1：
It is automatic that produced liquid in oil well flows into oil well oil-gas water three-phase of the present utility model by vertically-mounted product liquid entrance 1
In metering system, after production fluid flow crosses swirl-flow devices 2, carry out stream and be rectified into the adherent fluid of the outer shroud of gas core and oil water mixture,
Gas core therein is positioned in pipeline center and is taken out by the gas core probe tube 3 for waiting kinetic energy theory to sample, wherein also including a small amount of
Profit fluid, now whole gas cores and partially liq are tangential by the double wall space of gas core probe tube 3 and gas-liquid cyclone separator 4
Entrance, then rotates at a high speed the centrifugal force and gravity produced by rotation in gas-liquid cyclone separator 4 and realizes having for gas-liquid
Effect is separated.Gas-liquid cyclone separator 4 is supported by supporting plate 1, and the profit isolated is flowed again by profit discharge pipe 6
Enter in main pipeline fluid, the outlet that the gas phase isolated passes through the top of gas-liquid cyclone separator 4 passes main pipeline by gas
Phase discharge pipe 7 and by special gas phase volume flow rate meter 9 and temperature, 8 pairs of temperature of the gas isolated of pressure sensor, pressure
Power and volume flow are accurately measured and carry out physical property computing and obtain mass flow and integrated flow etc..After removing gas
Oil water mixture continues on main pipeline flowing after flowing through gas-liquid cyclone separator 4, and flows through the temperature in main pipeline
With pressure sensor 10, the temperature and pressure data of the oil water mixture in collection supervisor, for follow-up Calculation of Physical Properties provides real
When data.Then by after resistance piece 11, being gone out by separation water after mixing with the oil water mixture that gas-liquid cyclone separator is separated
Pipe 12 flows out, and the fluid of outflow is by after breeze way, by two grades of swirl-flow devices 13 of optimization design, there will be the oil of density contrast
Aqueous mixtures carry out the strength rotation in pipeline, and the profit between density contrast 0.1-0.2 is carried out into eddy flow separation, and forming inner ring is
Oily core and outer shroud are the standard ring-type flow of water ring, using the principle of isokinetic sampling pipe to oily core therein in oily core sample tap
14 are sampled, and a small amount of water therein is carried out cyclonic separation by the oily core with water by spiral-flow type oil water separator 19, wherein main
To coordinate and block water screen pack 20 and drainage orifice plate 21 to separate a small amount of water using eddy flow principle, Gravity Separation principle, and
The moisture that will be isolated by steam trap 18 is gone out and is flowed out with the mixed merga pass separation water outlet pipe 17 of water in supervisor, wherein equipped with list
The pressure difference or electromagnetic flowmeter of phase carry out online aqueous phase stream gauge 15 and measure.The separation oil that the crude oil that top is isolated passes through top
Surge tank 22 and oil phase outlet 24 are flowed out, wherein being measured equipped with single-phase differential oil phase flowmeter 23.By with data
Line will collect gas phase flow rate, gas phase temperature and pressure, and the temperature and pressure of supervisor, the flow of water and the flow electric signal of oil are passed
It is defeated to carry out computing, display to data acquisition and metering system 25 and store.Gas, water after single-phase measurement and oil install from it is lower to
On flow pass sequentially through the gentle water resistance part 27 of gas phase drag part 26 after mixed, the effect of resistance piece is and supervisor is formed
Supporting pressure system, it is ensured that the fluid mixing after each phase separation has no effect in original supervisor and waits kinetic energy theory, so that complete
Into the three-phase automatic gauge of oil well liquid-producing.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the scope of the claims of the present utility model, its
He all should all belong to the scope of the claims of the present utility model with the equivalence changes of patent spirit of the present utility model.
Claims (7)
1. a kind of High water cut low yield gas oil well liquid-producing three-phase metering mechanism, it is characterised in that including what is be sequentially connected from bottom to top
One-level swirl-flow devices, gas core probe tube, two grades of swirl-flow devices, steam trap, spiral-flow type oil water separator, block water filter net type oil removing
Device, drainage orifice plate, the oily surge tank of separation, gas-liquid cyclone separator is set in the gas core probe tube.
2. a kind of High water cut low yield gas oil well liquid-producing three-phase metering mechanism according to claim 1, it is characterised in that described
Gas-liquid cyclone separator lower end connects profit discharge pipe, and upper end connection gas phase discharge pipe, the gas phase discharge pipe is reconnected mixed
Close outlet pipe bottom；The steam trap lower port is oily core sample tap, and the steam trap side openings are simultaneously connected by separation water outlet pipe
Connect mixing outlet pipe middle part；Separate oily surge tank top and connection mixing outlet pipe is exported by oil phase.
3. a kind of High water cut low yield gas oil well liquid-producing three-phase metering mechanism according to claim 2, it is characterised in that described
Gas phase drag part, air water resistance piece are set in mixing outlet pipe, and the gas phase drag part is higher than gas phase discharge pipe and mixes outlet pipe
Connector, less than separation water outlet pipe and the connector of mixing outlet pipe, the air water resistance piece is higher than separation water outlet pipe and blends
The connector of pipe, exports and mixes the connector of outlet pipe less than oil phase.
4. a kind of High water cut low yield gas oil well liquid-producing three-phase metering mechanism according to claim 2, it is characterised in that described
It is profit temperature and pressure measuring section between gas core probe tube and two grades of swirl-flow devices, profit temperature and pressure measuring section sets temperature sensor and pressure
Force snesor；Gas phase flow rate meter, gas phase temperature meter, gaseous pressure meter are set on the gas phase discharge pipe；The separation water outlet pipe
Upper setting aqueous phase stream gauge；Oil phase flowmeter is set in the oil phase outlet.
5. a kind of High water cut low yield gas oil well liquid-producing three-phase metering mechanism according to claim 4, it is characterised in that described
Temperature sensor, pressure sensor, gas phase flow rate meter, gas phase temperature meter, gaseous pressure meter, aqueous phase stream gauge, oil phase flowmeter
It is connected with data acquisition and metering system.
6. a kind of High water cut low yield gas oil well liquid-producing three-phase metering mechanism according to claim 2, it is characterised in that described
Oil mixing with water resistance piece is set between gas-liquid cyclone separator and two grades of swirl-flow devices.
7. a kind of High water cut low yield gas oil well liquid-producing three-phase metering mechanism according to claim 1, it is characterised in that described
Gas-liquid cyclone separator supporting plate one is supported, and the steam trap supporting plate two is supported.
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| CN201621092038.7U CN206246115U (en) | 2016-09-29 | 2016-09-29 | A kind of High water cut low yield gas oil well liquid-producing three-phase metering mechanism |
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| CN201621092038.7U CN206246115U (en) | 2016-09-29 | 2016-09-29 | A kind of High water cut low yield gas oil well liquid-producing three-phase metering mechanism |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882546A (en) * | 2016-09-29 | 2018-04-06 | 中国石油化工股份有限公司 | High water cut low yield gas oil well liquid-producing three-phase metering mechanism and method |
| CN108518202A (en) * | 2018-03-13 | 2018-09-11 | 西南石油大学 | A kind of pit shaft Multifunction pipe-type lubricating element |
| CN110398267A (en) * | 2019-07-23 | 2019-11-01 | 上海一诺仪表有限公司 | A kind of three-phase measuring system that realizing logic control and metering method |
-
2016
- 2016-09-29 CN CN201621092038.7U patent/CN206246115U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882546A (en) * | 2016-09-29 | 2018-04-06 | 中国石油化工股份有限公司 | High water cut low yield gas oil well liquid-producing three-phase metering mechanism and method |
| CN108518202A (en) * | 2018-03-13 | 2018-09-11 | 西南石油大学 | A kind of pit shaft Multifunction pipe-type lubricating element |
| CN110398267A (en) * | 2019-07-23 | 2019-11-01 | 上海一诺仪表有限公司 | A kind of three-phase measuring system that realizing logic control and metering method |
| CN110398267B (en) * | 2019-07-23 | 2021-05-11 | 上海一诺仪表有限公司 | Oil-water-gas three-phase metering system and metering method for realizing logic control |
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