CN201588624U - Movable single well metering device for oil well - Google Patents
Movable single well metering device for oil well Download PDFInfo
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- CN201588624U CN201588624U CN2009202780055U CN200920278005U CN201588624U CN 201588624 U CN201588624 U CN 201588624U CN 2009202780055 U CN2009202780055 U CN 2009202780055U CN 200920278005 U CN200920278005 U CN 200920278005U CN 201588624 U CN201588624 U CN 201588624U
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Abstract
The utility model relates to a movable single well metering device used for an oil well. A buffer tank and a flow meter are respectively fixed at the upper part of a traveling car, and an outlet of the buffer tank is connected with the inlet of the flow meter through a pipeline; a check valve and a valve are respectively connected at the inlet of the buffer tank, and an inlet pipeline is connected to the valve at the inlet of the buffer tank; a valve is connected at the outlet end of the flow meter and connected with an outlet pipeline; and the flow meter is connected with a flow meter data display control instrument. The utility model has the benefits that oil pipelines at the wellhead of the oil well are rapidly connected, the mass flow of oil-gas-water three-phase mixed fluid is directly metered, and since the check valve and the gas-liquid buffer tank are respectively and additionally arranged at the inlet end of the flow meter, the fluid is prevented from reversely flowing in down stroke of the rod-pumped well, and the flow quantity of the fluid and the pressure fluctuation are both reduced, so as to ensure accurate metering; and the complete set metering device has the advantages of small size, light weight and wide measuring range, and is convenient to move after being skid-mounted on a lightweight jinrikisha or an electric tricycle.
Description
Technical field
The utility model relates to oil recovery technique field, oil field, and particularly a kind of oil well single well metering device is a kind of oil-gas-water three-phase mass flow metering device of transportable low gas content gauging well.
Background technology
Oil well well yield metering can for grasp oil well dynamically and science formulation production measure foundation is provided.Conventional production metering of oil wells has mainly adopted four kinds of methods: two-phase separation of glasses pipe gauging, two-phase are separated instrument gauging, three phase separation instrument gauging or oil gas water and are not separated metering.Glass tube oil gauge is the conventional metered dose method that generally adopts.Simple, the small investment of its equipment; Can't realize continuous gauging, systematic error is big; Two-phase is separated metering instrument and has been realized continuous gauging; The influence of factors such as deficiency is that mass flowmenter is installed, wax deposition and gas content, the measuring accuracy instability; Three Phase Separating-Metering Device is suitable for the oil well measurement of high water-cut stage and ultra-high water cut stage, and equipment needed thereby and instrument are many, flow process is complicated, operation easier is big, maintenance cost is high; It is little that oil gas water does not separate the metering floor space, but single phase certainty of measurement and the compliance reliability be difficult to reach and produce the requirement of using.
After each oil field ground system was transformed, oil well had adopted multiple flow process form: as: 1. mix the defeated cold defeated flow process of being with; 2. cold defeated band is mixed defeated flow process; 3. big ring is mixed defeated cold the failing of being with; 4. little ring is mixed defeated cold the failing of being with; 5. little ring is mixed defeated; The cold defeated flow process of 6. little string; 7. prop up well serial flows more than seven kinds such as the cold defeated flow process of shape.The complexity of flow process is given accurately, and metering individual well dynamic data brings difficulty; Divide to produce, investigate out the producing well that merit do not exert oneself to individual well and bring very big difficulty; Finishing conventional gage work also needs part to stop well metering investigation, rate and crude oil production when having a strong impact on the oil well ordinary production.
In the oil well one-well metering, have three factors to have a strong impact on the degree of accuracy of oil well measurement:
The firstth, the influence of gas: most metering devices are with metering respectively after the gas-liquid separation, the equipment that adopts has gas-liquid separator, gas flowmeter and fluid flowmeter, equipment investment height not only, equipment needed thereby and instrument are many, flow process is complicated, the bookkeeping difficulty is big, the maintenance cost height, and it is bulky, being not suitable as mobile device uses, and this gas-liquid separation has changed the actual fluidised form of fluid, can cause the variation of oil well output, therefore can there be certain deviation in the data of metering with true output.
The secondth, oil well flow and pressure oscillation are bigger, cause the flow meter metering inaccurate: in the most wells manufacturing process, there are oil well flowed fluctuation and pressure oscillation problem, rod-pumped well particularly, this phenomenon is fairly obvious, along with the up-down stroke of oil pumper, output all becomes the wave state with pressure, particularly the low well of oil well pump coefficient of fullness is irregular wave state, and this causes very mistake to metering.Most flow meters, particularly mass flowmenter require pressure and flow to be stable state.It is big more to fluctuate, and error is high more.
The 3rd is the fluid backward flow problem: in the down stroke of rod-pumped well, because the packing of sucker rod weares and teares because of friction in use for some time, sealing descends, and the fluid that causes entering wellhead assembly produces refluence with the sucker rod down stroke, causes metering distortion as a result.
The utility model content
The purpose of this utility model is: a kind of portable oil well single well metering device is provided, realizes directly measuring individual well output liquid fluid mass, do not influence the ordinary production of the oil well on the defeated ring of same collection, satisfy the oil well measurement standard to the measuring accuracy requirement; Tested oil well production data can directly show, and possess storability; The field is stable, safe and reliable, environmental protection, satisfies managemet of the developmet of oilfeild demand.
The technical solution adopted in the utility model is: portable individual well metering device, mainly form by flap valve, surge tank, pressure meter, flow meter, flow meter data demonstration controller, travelling car, valve and pipeline, bottom at surge tank is fixed with sewage draining valve, is fixed with valve and pressure meter at the top of surge tank.It is characterized in that: be fixed with surge tank and flow meter on the top of travelling car, between the inlet of surge tank outlet and flow meter, have pipeline to be connected.The inlet of surge tank is connected with flap valve and valve, and suction line connects the inlet valve of surge tank.The extraction liquid of individual well can enter in the surge tank by suction line, flap valve and valve.The port of export at flow meter is connected with valve, and flow meter port of export valve is connected with outlet line.Flow meter is connected with flow meter data and shows controller.Extraction liquid in the surge tank can flow into flow meter, and carries out detection record individual well flow by flow meter.
Device is before every mouthful of well measurements, all need in flow meter, be full of under the inactive state of liquid and return to zero, therefore between suction line and outlet line, be connected with bypass line, close the valve on suction line and the outlet line during device zeroing, and the valve of unlatching bypass line, oil well fluid by-passing pipeline.
The needs of Fast Installation for convenience are connected with snap joint at the other end of suction line; The other end at outlet line is connected with snap joint.Adopt snap joint to be connected the saving set-up time fast with supporting hot insulated line.
Air compressor is arranged on travelling car, after each individual well measurement finishes, the flow meter inner fluid can be purged totally,, influence next certainty of measurement in device in order to avoid fluid solidifies, wax deposition.
The utility model as the metering main body, at flow meter upstream configuration ball-and-seat and surge tank, is used to prevent that the oil well fluid from flowing backwards and restrain the fluctuation of fluid pressure with the flow meter of accurate metering oil gas water fluid-mixing quality; This device is made up of primary instrument and secondary meter two parts.Primary instrument is mainly by ball-and-seat, and surge tank and flow meter are formed; Secondary meter mainly is made up of signal transmitting device and intelligent meter, intelligent meter comprises 430 single-chip microcomputers, the band Intelligent treatment software of adjustment function automatically, customization LCD, clock and memory, function button, buzzer, TM deck, battery, explosion-resistant enclosure etc.; The signal transmitting device is converted to the signal of telecommunication with the instantaneous value of the fluid mass of flow meter test and is transported to secondary meter, is finished calculating, demonstration and the functions such as storage and playback of the instantaneous value and the aggregate-value of flow by secondary meter.Primary instrument and secondary meter respectively are contained in the casing, and are fixed on a sledge and load onto; The device entrance end adopts snap joint, connects fast with supporting hot insulated line.Device is equipped with air compressor machine, after each individual well measurement finishes, the flow meter inner fluid can be purged totally, in order to avoid fluid solidifies in device, wax deposition, use and certainty of measurement the next time that influences device.A whole set of skid-mounted unit is installed in the small-sized battery truck, makes device be convenient to move, if the scope of required measurement oil well is bigger, skid-mounted unit can be installed on the light car, moves more flexible.
The beneficial effects of the utility model:
1, primary instrument adopts the meter fluid quality, do not need oil and gas and water from, easy to use, device volume is little.2, be not subjected to the influence of temperature, pressure, viscosity and density in the metering process, accurate measurement, precision height.3, the power-supply system of primary instrument adopts the storage battery device power supply of mobile system, and the power supply of secondary meter adopts dry cell or storage battery power supply, and dispense with outer connecting power is easy to use.4, carry snap joint, be connected with the well mouth of oil well valve and disconnect very convenient.Therefore one-well metering can be finished at short notice.5. provide air compressor machine for oneself, can at any time device and pipeline inner fluid be purged totally, avoid the interior former stream of device to solidify and wax deposition impurity obstruction etc.6. the sledge assembling structure is placed on battery truck or the light car conveniently moving.Range of flow from per hour several kilograms to hundreds of ton per hour, pressure rating can form series of products from 0～32Mpa, promptly can be used on the laboratory and makes delicate metering, also can be used for mine, factory.
At first use oil gas water and do not separate metering, the flow meter that adopts metering oil gas water three phase fluid-mixing quality can show instantaneous and the accumulative total average discharge as the metering main body, and volume is little, and is in light weight.Arrived the oil field of developing the middle and later periods for great majority, the well water height, tolerance is few, and gas liquid ratio is lower, and this is very favourable to realizing accurately measuring oil gas water three phase fluid-mixing mass flow; Next is at flow meter upstream configuration flap valve, is used to solve the rod-pumped well fluid and enters the problem that refluxes in down stroke behind the metering pipeline, makes flow meter the phenomenon that flows backwards can not occur.Between flap valve and flow meter, surge tank is installed, the flow of fluid and the fluctuation of pressure are slowed down; Thereby make the accuracy of measuring height of flow meter.
Description of drawings
Fig. 1 is the structural profile schematic diagram of the portable oil well single well metering device of the utility model.
Among the figure, 1. suction line, 2. flap valve, 3. surge tank, 4. pressure meter, 5. flow meter, 6. flow meter data shows controller, 7. travelling car, 8. valve, 9. outlet line.
The specific embodiment
Embodiment 1: with a portable individual well metering device is example, and the utility model is described in further detail.
Consult Fig. 1.The portable individual well metering device of the utility model mainly is made up of flap valve 2, surge tank 3, pressure meter 4, flow meter 5, flow meter data demonstration controller 6, travelling car 7, valve 8 and pipeline 1.
Surge tank 3 is vertical round can, and volume is 2 liters.Be fixed with a sewage draining valve 8 in the bottom of surge tank 3, be fixed with two valves 8 and a pressure meter 4 at the top of surge tank 3.The model of flow meter 5 is EMF-1.Travelling car 7 adopts battery truck.A VEDA type air compressor is arranged on travelling car 7.
Be fixed with a surge tank 3 and a flow meter 5 on the top of travelling car 7, between the inlet of surge tank 3 outlet and flow meter 5, have the pipeline 1 of 65 millimeters of diameters to be connected.The inlet of surge tank 3 is connected with flap valve 2 and manually-operated gate 8 of a DF-200 model, and suction line 1 connects the inlet valve 8 of surge tank 3.Between suction line 1 and outlet line 9, be connected with a bypass line, on bypass line, be fixed with a valve 8.Suction line 1 end is connected with a snap joint; Outlet line 9 ends are connected with a snap joint.
The port of export at flow meter 5 is connected with a valve 8, and flow meter 5 port of export valves 8 are connected with outlet line 9.Flow meter 5 is connected with flow meter data and shows controller 6.
Claims (4)
1. portable oil well single well metering device, mainly by flap valve (2), surge tank (3), pressure meter (4), flow meter (5), flow meter data shows controller (6), travelling car (7), valve (8) and pipeline are formed, be fixed with sewage draining valve (8) in the bottom of surge tank (3), be fixed with valve (8) and pressure meter (4) at the top of surge tank (3), it is characterized in that: be fixed with surge tank (3) and flow meter (5) on the top of travelling car (7), between the inlet of surge tank (3) outlet and flow meter (5), there is pipeline (1) to be connected, the inlet of surge tank (3) is connected with flap valve (2) and valve (8), suction line (1) connects the slow inlet valve (8) that fills jar (3), the port of export at flow meter (5) is connected with valve (8), flow meter (5) port of export valve (8) is connected with outlet line (9), and flow meter (5) is connected with flow meter data and shows controller (6).
2. portable oil well single well metering device according to claim 1 is characterized in that: be connected with bypass line between suction line (1) and outlet line (9), be fixed with valve (8) on bypass line.
3. portable oil well single well metering device according to claim 1 is characterized in that: the other end at suction line (1) is connected with snap joint; The other end at outlet line (9) is connected with snap joint.
4. portable oil well single well metering device according to claim 1 is characterized in that: on travelling car (7) air compressor is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202780055U CN201588624U (en) | 2009-12-04 | 2009-12-04 | Movable single well metering device for oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202780055U CN201588624U (en) | 2009-12-04 | 2009-12-04 | Movable single well metering device for oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201588624U true CN201588624U (en) | 2010-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202780055U Expired - Lifetime CN201588624U (en) | 2009-12-04 | 2009-12-04 | Movable single well metering device for oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201588624U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105019883A (en) * | 2014-04-24 | 2015-11-04 | 中国石油化工股份有限公司 | Movable oil well metering apparatus |
| CN105840946A (en) * | 2016-05-19 | 2016-08-10 | 西南石油大学 | Device and method for inhibiting delivery fluctuation pressure of finished oil pipeline |
| CN106321063A (en) * | 2016-08-05 | 2017-01-11 | 江苏华尔威科技集团有限公司 | Crude oil single well metering and measuring system |
| 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 |
| CN112282703A (en) * | 2020-11-05 | 2021-01-29 | 中国石油天然气股份有限公司 | Anti-freezing system and method for chemical feeding pipeline of oil well wellhead |
-
2009
- 2009-12-04 CN CN2009202780055U patent/CN201588624U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105019883A (en) * | 2014-04-24 | 2015-11-04 | 中国石油化工股份有限公司 | Movable oil well metering apparatus |
| CN105840946A (en) * | 2016-05-19 | 2016-08-10 | 西南石油大学 | Device and method for inhibiting delivery fluctuation pressure of finished oil pipeline |
| CN105840946B (en) * | 2016-05-19 | 2018-11-23 | 西南石油大学 | Inhibit the device and its suppressing method of processed oil pipeline conveying surge pressure |
| CN106321063A (en) * | 2016-08-05 | 2017-01-11 | 江苏华尔威科技集团有限公司 | Crude oil single well metering and measuring system |
| 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 |
| CN112282703A (en) * | 2020-11-05 | 2021-01-29 | 中国石油天然气股份有限公司 | Anti-freezing system and method for chemical feeding pipeline of oil well wellhead |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100922 |
|
| CX01 | Expiry of patent term |