CN201225146Y - Downhole oil, water, gas mixing phase flow measuring device - Google Patents
Downhole oil, water, gas mixing phase flow measuring device Download PDFInfo
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- CN201225146Y CN201225146Y CNU2008201090895U CN200820109089U CN201225146Y CN 201225146 Y CN201225146 Y CN 201225146Y CN U2008201090895 U CNU2008201090895 U CN U2008201090895U CN 200820109089 U CN200820109089 U CN 200820109089U CN 201225146 Y CN201225146 Y CN 201225146Y
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Abstract
The utility model relates to a measuring device for the miscible flow measurement of down-hole oil, water and gas, which belongs to the technical field of down-hole equipment (tools) for oil development. The measuring device is characterized in that a venturi tube (3) and a slender tapered nozzle (6) are sequentially mounted in a sleeve (8); the upper end of the venturi tube (3) is connected with an upper-end oil tube (1), the lower end is connected with the slender tapered nozzle (6), and the lower end of the slender tapered nozzle (6) is connected with a lower-end oil tube (11); a sensor group (4) is embedded on the venturi tube (3) corresponding to a throat part of the venturi tube (3), an upstream pressure port (10) is arranged in a position of the cylindrical section of the inlet of a venturi tube (3), and a throat negative-pressure pressure port (9) is arranged in a position corresponding to the throat part of the venturi tube (3). The utility model utilizes the reasonable structure design of the venturi tube to realize the miscible flow measurement and the real-time acquisition of down-hole oil, water and gas and have simple structure, safety, reliability and high measuring accuracy.
Description
Technical field:
The utility model relates to a kind of downhole oil, water, gas mixed phase flow measuring device, belongs to oil development down-hole (instrument) equipment technical field.
Background technology:
Along with the development of petroleum industry, the exploitation of oil well and production management begin to march toward intellectuality and full-automation, intelligent oilfield technology obtains application more and more widely in oil-gas field development.The downhole flow control technology is the indispensable pith of intelligent oilfield technology, and it is mainly finished by mounting shaft down-off controller.
The measuring principle of traditional multi-phase flowmeter is that fluid to be measured is introduced the metering pipeline, enters and measures each phase fluid with conventional single-phase flow meter again after metering separator is separated into oil, gas, water three-phase.For example with orifice flowmeter metering gas phase flow velocity, with positive displacement or turbine meter metering liquid phase.Traditional flowmeter technology is ripe, and measuring accuracy is higher, but its major defect be take up an area of wide, investment is big, when switching to the metering of another mouthful well, need the long time just can reach stable and measure.
The downhole flow control technology mainly is the problem that solves in the oil development real-time collection, monitoring and the processing of down-hole multiphase flow rates data, thereby reaches quick modification oil production technology, optimizes the output of payzone, improves the purpose of recovery ratio.Existing equipment and technology can't satisfy demand of practical production.
Summary of the invention:
In order to overcome the deficiencies in the prior art part, the purpose of this utility model is to provide a kind of downhole oil, water, gas mixed phase flow measuring device, make it to have simple in structure, easy to use, certainty of measurement is high, real-time production wells down-off data characteristic.
The utility model is to realize above-mentioned purpose by following technical solution.
In the structure of a kind of downhole oil, water, gas mixed phase flow measuring device, be provided with the nozzle (6), box cupling (7), sleeve pipe (8), lower end oil pipe (11) of upper end oil pipe (1), box cupling (2), Venturi tube (3), sensor groups (4), box cupling (5), elongated band awl etc., the nozzle (6) that Venturi tube (3) and elongated band are bored is installed in the sleeve pipe (8) successively; The upper end of Venturi tube (3) is connected with upper end oil pipe (1), and the lower end is connected with the nozzle (6) of elongated band awl; The lower end of the nozzle (6) of elongated band awl is connected with lower end oil pipe (11); The upper end of Venturi tube (3) is threaded by box cupling (2) with upper end oil pipe (1), the lower end of Venturi tube (3) is threaded by box cupling (5) with the nozzle (6) of elongated band awl, and the lower end of the nozzle (6) of elongated band awl is threaded by box cupling (7) with lower end oil pipe (11); On Venturi tube (3), with respect to the position embedded sensor groups (4) that is equipped with of Venturi tube (3) throat; Venturi tube (3) is made up of inlet cylindrical section, circular cone contraction section, cylinder throat and circular cone diffuser, and the coning angle of its circular cone diffuser should be less than or equal to 30 °; On Venturi tube (3), have upstream pressure tappings (10), have throat's negative pressure pressure tappings (9) in position with respect to Venturi tube (3) throat in position with respect to Venturi tube (3) inlet cylindrical section.
The utility model compared with prior art has following beneficial effect:
1, utilizes the nozzle of rational elongated band awl and the structure design of Venturi tube, realized mixing weighing, the downhole flow data are gathered in real time down-hole Oil, Water, Gas three-phase.
The complex environment that 2, can adapt to the down-hole obtains high-quality real-time downhole data.
3, simple and compact for structure and do not have plug-in unit, do not disturb fluid to flow, crushing is little, be subjected to the physical properties of fluids variable effect little, is convenient to implement, and is safe and reliable; The certainty of measurement height.
Description of drawings:
Fig. 1 is the general structure schematic diagram of a kind of downhole oil, water, gas mixed phase flow measuring device.
In the drawings: 1. upper end oil pipe, 2. box cupling, 3. Venturi tube, 4. sensor groups, 5. box cupling, 6. nozzle, 7. box cupling, 8. sleeve pipe, 9. throat's negative pressure pressure tappings, 10. upstream pressure tappings, the 11. lower end oil pipes of elongated band awl.
The specific embodiment:
This a kind of downhole oil, water, gas mixed phase flow measuring device are waited by nozzle (6), box cupling (7), sleeve pipe (8), the lower end oil pipe (11) of upper end oil pipe (1), box cupling (2), Venturi tube (3), sensor groups (4), box cupling (5), elongated band awl to be formed, and the nozzle (6) that Venturi tube (3) and elongated band are bored is installed in the sleeve pipe (8) successively; The upper end of Venturi tube (3) is connected with upper end oil pipe (1), and the lower end is connected with the nozzle (6) of elongated band awl; The lower end of the nozzle (6) of elongated band awl is connected with lower end oil pipe (11); The upper end of Venturi tube (3) is threaded by box cupling (2) with upper end oil pipe (1), the lower end of Venturi tube (3) is threaded by box cupling (5) with the nozzle (6) of elongated band awl, and the lower end of the nozzle (6) of elongated band awl is threaded by box cupling (7) with lower end oil pipe (11); On Venturi tube (3), with respect to the position embedded sensor groups (4) that is equipped with of Venturi tube (3) throat; Venturi tube (3) is made up of inlet cylindrical section, circular cone contraction section, cylinder throat and circular cone diffuser, and the coning angle of its circular cone diffuser should be less than or equal to 30 °; On Venturi tube (3), have upstream pressure tappings (10), have throat's negative pressure pressure tappings (9) in position with respect to Venturi tube (3) throat in position with respect to Venturi tube (3) inlet cylindrical section.When the Oil, Water, Gas multiphase flow of different fluidised forms is flowed through the nozzle (6) of elongated band awl by lower end oil pipe (11), under the jet-action of the nozzle (6) of elongated band awl, become monophasic fluid; Monophasic fluid enters Venturi tube (3) again; When liquid was flowed through Venturi tube (3), the liquid flow section shrank, and increased at necked-down section place flow velocity, and pressure reduces, and made Venturi tube (3) front and back produce pressure reduction, can measure by sensor groups (4), calculated flow velocity according to the pressure reduction that records again.Last combined sensor group (4) records underground survey parameters such as down-hole absolute pressure, temperature, the velocity of sound, and the model according to experiment is set up through calculating each phase phase fraction, finally obtains each phase flow rate.
Claims (4)
1, a kind of downhole oil, water, gas mixed phase flow measuring device, form by upper end oil pipe (1), box cupling (2), box cupling (5), box cupling (7), sleeve pipe (8), lower end oil pipe (11) etc., it is characterized in that the nozzle (6) of Venturi tube (3) and elongated band awl is installed in the sleeve pipe (8) successively; The upper end of Venturi tube (3) is connected with upper end oil pipe (1), and the lower end is connected with the nozzle (6) of elongated band awl; The lower end of the nozzle (6) of elongated band awl is connected with lower end oil pipe (11); On Venturi tube (3), with respect to the position embedded sensor groups (4) that is equipped with of Venturi tube (3) throat.
2, a kind of downhole oil according to claim 1, water, gas mixed phase flow measuring device, the upper end that it is characterized in that Venturi tube (3) is threaded by box cupling (2) with upper end oil pipe (1), the lower end of Venturi tube (3) is threaded by box cupling (5) with the nozzle (6) of elongated band awl, and the lower end of the nozzle (6) of elongated band awl is threaded by box cupling (7) with lower end oil pipe (11).
3, a kind of downhole oil according to claim 2, water, gas mixed phase flow measuring device, it is characterized in that Venturi tube (3) is made up of inlet cylindrical section, circular cone contraction section, cylinder throat and circular cone diffuser, the coning angle of its circular cone diffuser should be less than or equal to 30 °.
4, a kind of downhole oil according to claim 3, water, gas mixed phase flow measuring device, it is characterized in that on Venturi tube (3), have upstream pressure tappings (10), have throat's negative pressure pressure tappings (9) in position with respect to Venturi tube (3) throat in position with respect to Venturi tube (3) inlet cylindrical section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201090895U CN201225146Y (en) | 2008-07-08 | 2008-07-08 | Downhole oil, water, gas mixing phase flow measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201090895U CN201225146Y (en) | 2008-07-08 | 2008-07-08 | Downhole oil, water, gas mixing phase flow measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201225146Y true CN201225146Y (en) | 2009-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201090895U Expired - Fee Related CN201225146Y (en) | 2008-07-08 | 2008-07-08 | Downhole oil, water, gas mixing phase flow measuring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN201225146Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018479A (en) * | 2012-11-30 | 2013-04-03 | 中山市樱雪集团有限公司 | Wind speed monitoring device of gas water heater fan |
| CN105806424A (en) * | 2016-03-15 | 2016-07-27 | 成都中油翼龙科技有限责任公司 | Multi-phase flow nondisjunction online measuring device and measuring method thereof |
| CN109707370A (en) * | 2019-01-17 | 2019-05-03 | 上海朝辉压力仪器有限公司 | A kind of multi-parameter one-well metering device |
-
2008
- 2008-07-08 CN CNU2008201090895U patent/CN201225146Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018479A (en) * | 2012-11-30 | 2013-04-03 | 中山市樱雪集团有限公司 | Wind speed monitoring device of gas water heater fan |
| CN105806424A (en) * | 2016-03-15 | 2016-07-27 | 成都中油翼龙科技有限责任公司 | Multi-phase flow nondisjunction online measuring device and measuring method thereof |
| CN105806424B (en) * | 2016-03-15 | 2019-07-16 | 成都中油翼龙科技有限责任公司 | A kind of multiphase flow does not separate on-line measurement device and its measurement method |
| CN109707370A (en) * | 2019-01-17 | 2019-05-03 | 上海朝辉压力仪器有限公司 | A kind of multi-parameter one-well metering device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090422 |