CN1847801A - Acoustic Doppler well flowmeter - Google Patents
Acoustic Doppler well flowmeter Download PDFInfo
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- CN1847801A CN1847801A CN 200610020720 CN200610020720A CN1847801A CN 1847801 A CN1847801 A CN 1847801A CN 200610020720 CN200610020720 CN 200610020720 CN 200610020720 A CN200610020720 A CN 200610020720A CN 1847801 A CN1847801 A CN 1847801A
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Abstract
The ultrasonic Doppler well flowmeter is used in measuring the multiphase flow of oil, water and gas in well. The ultrasonic Doppler well flowmeter of the present invention includes a flow collecting device and a central flow channel and measuring circuit part. In the central flow channel, one pair of ultrasonic emitting probe and ultrasonic receiving probe is set, so that the Doppler frequency deviations of reflected ultrasonic wave in the interfaces of flowing oil, water and gas are utilized to measure the motion speed of oil grain and bubble for fluid flow rate calculation. The ultrasonic Doppler well flowmeter is suitable for flow rate measurement of fluid with oil and gas content in 1-99 %, and may be combined in small diameter multiparameter logging instrument for annular space log. The present invention has simple structure, convenient maintenance and high log success rate.
Description
Technical field
The invention belongs to the measurement of fluid flow field, be specifically related to a kind of being used for and go out layer acoustic Doppler well flowmeter of oil gas well Different Strata fluid-withdrawal rate at the underground survey fecund.
Technical background
The most frequently used oil well downhole flow measurement device in oil field is a turbo flow meter, utilizes downhole fluid to promote the turbine rotation, extrapolates flow value with tachometer value.The characteristics of turbo flow meter are that follow-up electronic circuit is simple, are used for the water injection well of monophasic fluid and the withdrawal well of heterogeneous fluid (oil well).Yet because the circumstance complication under the oil well, fine sand in the stratum that has and crude oil mix and flow through turbine, cause turbine stuck, thereby the well logging success ratio is lower, go out in the husky serious oil well at some, and turbo flow meter can't use.The mechanical rotation bearing of turbine is easy to wear in addition, and maintenance workload is big, and serviceable life is shorter.Name is called the application for a patent for invention (number of patent application: 200410095629.5) disclose the Doppler ultrasonic flow meter of a kind of ground type, and be not suitable for the down-hole of " pincers type Doppler Ultrasonic Flowmeter ".
The down-hole Doppler flowmeter is compared with the Doppler flowmeter of surface work, because the working environment difference has following different characteristics:
1. the ground Doppler flowmeter is general all measures at the duct section of level, does not exist heterogeneous fluid because of density, the different flow velocity differences that cause of proportion.Subsurface flowmeter can only be measured in vertical pit shaft usually.There is " sliding velocity " between the heterogeneous fluid, have only the bulk velocity that as far as possible improves fluid, could reduce the measuring error that alternate " sliding velocity " brought.
2. the ultrasonic probe of ground Doppler flowmeter all is arranged on the outside of fluid line usually, and it does not reduce the cross section that fluid passes through, and does not also increase mobile resistance.Subsurface flowmeter for annular space log, because the upper and lower well of instrument is to realize by annular space narrow and small between sleeve pipe and oil pipe, require the maximum gauge little (being generally φ 26mm) of instrument, the not only necessary miniaturization of ultrasonic probe, the installation site of ultrasonic probe also can only be chosen in the inside of fluid line.
3. the runner latus rectum of ground Doppler flowmeter measuring section latus rectums general and other parts of fluid transport system are close.Because the restriction of instrument maximum outside diameter, the center flow channels internal diameter of down-hole Doppler flowmeter is more much smaller than oil well hole diameter, and circulation area only is 1/50 of hole diameter area usually.Thereby must manage to reduce the flow resistance of measuring section in the flowmeter design as far as possible.
At present, the underground ultrasonic flowmeter that use in the oil field utilizes ultrasound wave forward and reverse transmission speed difference principle in fluid to constitute, and the water injection well that can be used for monophasic fluid is measured.Name is called the utility application (number of patent application: 200420007110.2) provide a kind of water injection well flowmeter of " water injection well ultrasonic flow test instrument ", only be applicable to the monophasic fluid measurement, can not be used to measure the oil well that has oil, gas multiphase flow body.
Summary of the invention
The purpose of this invention is to provide the underground survey fecund that is used for that does not a kind ofly have mechanical moving component, can resist silt influence in the crude oil, improves the well logging success ratio and go out layer acoustic Doppler well flowmeter of the output of oil gas well Different Strata.Acoustic Doppler well flowmeter of the present invention can reduce maintenance workload, increases the service life.
The present invention is achieved in that
The one-piece construction of acoustic Doppler well flowmeter of the present invention is one elongated cylindrical.Quantifier of the present invention comprises fluid current-collecting device, center flow channels part and metering circuit part, be characterized in, the bottom of flowmeter is provided with current-collecting device, and the middle part is the center flow channels part, and top is the metering circuit part of carrying out DATA REASONING, processing, transmission; Center flow channels partly is the cylindrical tube of a hollow, and the circumferencial direction on the tube wall of center flow channels part cylindrical tube lower end is provided with inlet, and circumferencial direction is provided with liquid outlet on the tube wall on inlet top; In the center flow channels part, be set with ultrasound emission probe and ultrasonic receiving transducer that transducing sheet and signal transmssion line constitute, contain emission transducing sheet on the end face of ultrasound emission probe, contain reception transducing sheet on the end face of ultrasonic receiving transducer towards flow direction towards flow direction; Current-collecting device comprises current collecting umbrella and drive motor; Metering circuit partly contains emission driving circuit, ultrasonic reception amplifying circuit, Doppler frequency detects and treatment circuit and data transmission circuit, and connects successively.
Ultrasound emission probe that fixedly installs in the center flow channels part of ultrasonic Doppler type subsurface flowmeter of the present invention and ultrasonic receiving transducer are designed to a columniform integral type probe, columniform integral type probe is fixed on the top of liquid outlet in the center flow channels part, contain emission transducing sheet on the lower surface of the ultrasound emission probe of integral type probe, contain on the lower surface of ultrasonic receiving transducer and receive the transducing sheet, emission transducing sheet with receive the transducing sheet formations " eight " font is set, emission transducing sheet and receive the transducing sheet respectively and constitute that an angle is arranged between the axis of the cylinder that integral type pops one's head in is 70 °～88 ° pitch angle.The internal diameter of the cylindrical tube of the cylindrical outer diameter of integral type probe and center flow channels part is complementary, and the both sides of integral type probe have groove, is convenient to make the cable that connects the instrument upper and lower part to pass through.The shape of ultrasonic transduction sheet and reception transducing sheet adopts circular piece.In order to strengthen the working area of transducing sheet, also can strengthen the diameter of transducing sheet disk, cut a part of area, become the ultrasonic transduction sheet of cyclotomy shape.
Acoustic Doppler well flowmeter of the present invention, also can center flow channels probe in the part be set to the structure of separate type, be provided with the ultrasound emission probe and the ultrasonic receiving transducer of the separate type that constitutes by transducing sheet and signal transmssion line between the inlet of center flow channels part and the liquid outlet, also be provided with the conflux ring; The profile of the ultrasound emission of separate type probe is made of two crossing long radius faces of cylinder and the minor radius face of cylinder and a planar end, and ultrasonic receiving transducer is identical with the structure that ultrasound emission is popped one's head in.The ultrasound emission of separate type probe is corresponding with ultrasonic receiving transducer to be arranged on the inwall of cylindrical tube of center flow channels part, ultrasound emission pop one's head in and the planar end of ultrasonic receiving transducer on be respectively arranged with ultrasound emission transducing sheet and ultrasonic reception transducing sheet; On the tube wall between above the below that the conflux ring is arranged on the ultrasound emission probe of separate type of center flow channels part and ultrasonic receiving transducer and the inlet.The angle of two crossing face of cylinder axis of the ultrasound emission probe of formation separate type is 5 °～45 °, and the angle of two crossing face of cylinder axis of the ultrasonic receiving transducer of formation separate type is similarly 5 °～45 °.The curvature of the inner cylinder face of the ultrasound emission probe of formation separate type and the tube wall of the long radius face of cylinder in the ultrasonic receiving transducer and center flow channels part is complementary, and the axis on the minor radius face of cylinder is vertical with the planar end of separate type probe.The internal diameter of the tube wall of conflux ring external diameter and center flow channels part is complementary.
The inlet and the liquid outlet that are provided with on the tube wall of the center flow channels part of acoustic Doppler well flowmeter of the present invention are respectively 2～8.For reducing the resistance of fluid turnover center flow channels, the total area of inlet and liquid outlet is designed to more than 2 times of center flow channels area.
Acoustic Doppler well flowmeter of the present invention upper end links to each other with ground logging system through cable, or is combined into the multiparameter well logger in down-hole and other logging instrumentation.
It is in order to improve the flow velocity of detected fluid that acoustic Doppler well flowmeter of the present invention is provided with current-collecting device.Behind the afflux, flow velocity is tens of times of fluid ascending velocity in the pit shaft in the center flow channels.The raising of flow velocity can increase the doppler frequency side-play amount, improves and measures sensitivity.In addition, improve fluid velocity and also can reduce elaioleucite, the gas additive error that come-up (sliding velocity) is brought whole fluid-velocity survey of ducking in drink.Current-collecting device also makes instrument set upright simultaneously, makes instrument be in the center of pit shaft.Current-collecting device instrument go into the well and on draw in when carrying, when flow measurement, open, in-hole fluid is flow through through the center flow channels of instrument.Current-collecting device in the acoustic Doppler well flowmeter of the present invention can adopt by motor-driven current collecting umbrella structure, also can adopt the afflux structure of alternate manner work such as hydraulic pressure.
Center flow channels of the present invention partly is provided with ultrasound emission probe and ultrasonic receiving transducer, and probe is made of ultrasonic transduction sheet and signal transmssion line, and probe is the Sensor section of flowmeter.The ultrasound wave that ultrasound emission probe is sent runs into elaioleucite and bubble in runner, produce reflection at water-oil interface, gas-water interface, and what reflection wave frequency was subjected to fluid motion speed influences generation and the directly proportional Doppler frequency side-play amount of flow velocity.Ultrasonic receiving transducer is used to obtain hyperacoustic reflected signal, delivers to metering circuit and further processes.
Metering circuit of the present invention partly is positioned at flowmeter top, finishes the function of the measurement of Doppler frequency side-play amount, data processing, data transmission.It comprises that ultrasound emission driving circuit, ultrasonic received signal amplifying circuit, Doppler frequency side-play amount detect and treatment circuit, earthward or the data transmission circuit of down-hole combined instrument.
Ultrasonic Doppler flowmeter of the present invention need not be provided with the mechanical rotation part, thereby can not produce fault because of silt in the crude oil causes flowmeter, and well logging success ratio height also can use in going out the big oil well of husky amount.Because the Oilfield using polymer injection increases the recovery ratio of in-place oil, many producing wells are in the crude oil extraction, also have polymkeric substance to flow out, make downhole fluid viscosity increase, ultrasonic Doppler flowmeter of the present invention can adapt to the big multiphase fluid measurements of viscosity that contains polymkeric substance.Instrument simple in structure easy to maintenance, long service life.Ultrasonic Doppler flowmeter of the present invention can be worked in the heterogeneous fluid of oil-containing, gas 1% to 99%, and can be combined in the multiparameter logging instrumentation of minor diameter, satisfies " annular space log " requirement, measures the fluid-withdrawal rate that fecund goes out layer oil gas well Different Strata.
With embodiment acoustic Doppler well flowmeter of the present invention is described in further detail with reference to the accompanying drawings below:
Description of drawings
Fig. 1 is an acoustic Doppler well flowmeter one-piece construction synoptic diagram of the present invention
Fig. 2 is the diagrammatic cross-section of the center flow channels part of acoustic Doppler well flowmeter embodiment 1 of the present invention
Fig. 3 a is the integral type sonde configuration synoptic diagram of the center flow channels part of acoustic Doppler well flowmeter embodiment 1 of the present invention
Fig. 3 b is the integral type probe upward view of the center flow channels part of acoustic Doppler well flowmeter embodiment 1 of the present invention
Fig. 4 a is the diagrammatic cross-section of the center flow channels part of acoustic Doppler well flowmeter embodiment 2 of the present invention
Fig. 4 b is an A-A diagrammatic cross-section in the structure of center flow channels part of acoustic Doppler well flowmeter embodiment 2 of the present invention
Fig. 5 a is the structural representation that the separate type of the center flow channels part of acoustic Doppler well flowmeter embodiment 2 of the present invention is popped one's head in
Fig. 5 b is the separate type probe upward view of the center flow channels part of acoustic Doppler well flowmeter embodiment 2 of the present invention
Fig. 6 is the structural representation that the separate type of the center flow channels part of acoustic Doppler well flowmeter embodiment 3 of the present invention is popped one's head in
Fig. 7 is the circuit working functional-block diagram of the metering circuit part of acoustic Doppler well flowmeter of the present invention
Among the figure: 1. current collecting umbrella 2. center flow channels parts 3. metering circuit parts 4. integral types probes ultrasound emission transducing sheet (5,25) ultrasonic reception transducing sheet (45,35) 6. tube wall inlet (7,17) liquid outlet (8,18) 9. the ultrasound emission 11. long radius faces of cylinder, the 10. minor radius faces of cylinder, 12. conflux rings, 13. ultrasound emission driving circuits, 14. ultrasonic reception amplifying circuit 15. Doppler frequencies of popping one's head in detect and treatment circuit 16. data transmission circuits 19. ultrasonic receiving transducer grooves (20,22) 21. drive motor
Embodiment
Embodiment 1
In Fig. 1～Fig. 3, Fig. 7, the one-piece construction of acoustic Doppler well flowmeter of the present invention is one elongated cylindrical.Comprise fluid current-collecting device, center flow channels part 2 and metering circuit part 3, the bottom of flowmeter is provided with current-collecting device, and the middle part is a center flow channels part 2, and top is the metering circuit part 3 of carrying out DATA REASONING, processing, transmission; Center flow channels part 2 is the cylindrical tube of a hollow, the lower end is extended down to current-collecting device, circumferencial direction on the tube wall 6 of center flow channels part 2 cylindrical tube lower ends is provided with the inlet 7 of axial elongation, circumferencial direction on the tube wall 6 on the top of inlet 7 is provided with the liquid outlet 8 of axial elongation, and inlet and liquid outlet are set to 2 respectively; Be 2 in center flow channels part 2, to be set with ultrasound emission probe and the ultrasonic receiving transducer that constitutes by transducing sheet and signal transmssion line among the figure, contain ultrasound emission transducing sheet on the end face of ultrasound emission probe, contain ultrasonic reception transducing sheet on the end face of ultrasonic receiving transducer towards flow direction towards flow direction.Wherein, current-collecting device comprises current collecting umbrella 1 and drive motor 21, and metering circuit part 3 contains ultrasound emission driving circuit 13, ultrasonic reception amplifying circuit 14, Doppler frequency detects and treatment circuit 15 and data transmission circuit 16, and connects successively.In the present embodiment, ultrasound emission probe that the top of the center flow channels part 2 of ultrasonic Doppler type subsurface flowmeter of the present invention fixedly installs and ultrasonic receiving transducer are a columniform integral type probe 4, columniform integral type probe 4 is fixed on the top of liquid outlet 8 in the center flow channels part 2, near the upper edge of liquid outlet 8.Contain ultrasound emission transducing sheet 5 on the lower surface of the ultrasound emission probe of integral type probe 4, contain ultrasonic reception transducing sheet 45 on the lower surface of ultrasonic receiving transducer, ultrasound emission transducing sheet 5 and ultrasonic reception transducing sheet 45 respectively and constitute that an angle is arranged between the axis of cylinder of integral type probe 4 is 80 ° pitch angle, ultrasound emission transducing sheet 5 and ultrasonic reception transducing sheet 45 formation " eight " font is set.The internal diameter of the cylindrical outer diameter of integral type probe 4 and the cylindrical tube of center flow channels part 2 is complementary, and both sides have groove 20, is convenient to make the cable that connects the instrument upper and lower part to pass through.The cyclotomy shape that is shaped as intercepting part area of ultrasound emission transducing sheet 5 and ultrasonic reception transducing sheet 45, the secant position is in integral type probe end face center.For reducing the resistance of fluid into and out of center flow channels, the total area of inlet and liquid outlet is designed to more than 2 times of center flow channels area.
Fig. 1 is the one-piece construction synoptic diagram and the underground work view of acoustic Doppler well flowmeter of the present invention.During underground survey work, the current collecting umbrella 1 in the current-collecting device of bottom launches, and the fluid in the well wellbore flows into center flow channels part 2 through inlet 7, is flowed out by liquid outlet 8.The ultrasonic probe that is arranged in center flow channels part 2 causes metering circuit part 3 with fluid Doppler frequency shifted signal, and this signal is after metering circuit is handled, and measurement data is sent to surface instrumentation or down-hole Multi-parameter Combined Tool instrument.
The flowmeter of present embodiment is provided with probe on the top of center flow channels, does not influence flowing of fluid, and flow resistance is little, is fit to the flow measurement of big produced quantity oil well.
In Fig. 1, Fig. 4, Fig. 5, Fig. 7, the one-piece construction of acoustic Doppler well flowmeter of the present invention is one elongated cylindrical.Comprise fluid current-collecting device, center flow channels part 2 and metering circuit part 3, the bottom of flowmeter is provided with current-collecting device, and the middle part is a center flow channels part 2, and top is the metering circuit part 3 of carrying out DATA REASONING, processing, transmission; Center flow channels part 2 is the cylindrical tube of a hollow, and the circumferencial direction on the tube wall 6 of center flow channels part 2 cylindrical tube lower ends is provided with the inlet 17 of axial elongation, and circumferencial direction is provided with the liquid outlet 18 of axial elongation on the tube wall 6 on inlet 17 tops; In center flow channels part 2, be set with the probe that constitutes by transducing sheet and signal transmssion line, be respectively arranged with transducing sheet on the end face of probe towards flow direction.Current-collecting device comprises current collecting umbrella 1 and drive motor 21; Metering circuit part 3 contains ultrasound emission driving circuit 13, ultrasonic reception amplifying circuit 14, Doppler frequency detects and treatment circuit 15 and data transmission circuit 16, and connects successively.The ultrasound emission probe and the ultrasonic receiving transducer that are provided with in the present embodiment are the separate type sonde configuration, and promptly ultrasound emission probe and receiving transducer are for independently popping one's head in separately.Between the inlet 17 of center flow channels part 2 and liquid outlet 18, be provided with separate type probe ultrasound emission probe 9 and ultrasonic receiving transducer 19, also be provided with conflux ring 12; The ultrasound emission of separate type probe 9 is made of two crossing long radius faces of cylinder 11 and the minor radius face of cylinder 10 and a planar end, the structure of ultrasonic receiving transducer 19 and ultrasound emission probe 9 is identical, and the diameter of ultrasound emission probe 9 and ultrasonic receiving transducer 19 is all less than the in center flow channels aperture.The ultrasound emission of separate type probe 9 and ultrasonic receiving transducer 19 be corresponding to be arranged on the inwall 6 of cylindrical tube of center flow channels part 2, contain ultrasound emission transducing sheet 25 on the planar end of ultrasound emission probe 9, contain ultrasonic reception transducing sheet 35 on the planar end of ultrasonic receiving transducer 19; Conflux ring 12 is arranged on the below and the tube wall 6 between inlet 17 tops of the ultrasound emission probe of separate type of center flow channels part 2 and ultrasonic receiving transducer.Angle between two crossing face of cylinder axis of the ultrasound emission probe 9 of formation separate type is 30 °, and the angle between two crossing face of cylinder axis of ultrasonic receiving transducer 19 also is 30 °.The long radius face of cylinder 11 in the separate type ultrasound emission probe 9 is complementary with the curvature of the inner cylinder face of the tube wall 6 of center flow channels part 2, and the axis on the minor radius face of cylinder 10 is vertical with the planar end of separate type probe.Equally, the curvature of the inner cylinder face of the long radius face of cylinder in the ultrasonic receiving transducer 19 and the tube wall 6 of center flow channels part 2 is complementary, and the axis on the minor radius face of cylinder is vertical with the planar end of probe.The internal diameter of the tube wall 6 of the external diameter of conflux ring 12 and center flow channels part 2 is complementary.The inlet and the liquid outlet that are provided with on the tube wall 6 of center flow channels part 2 are respectively 2.For reducing the resistance of fluid into and out of center flow channels, the total area of inlet and liquid outlet is designed to more than 2 times of center flow channels area.During concrete the installation, the pop one's head in long radius face of cylinder of ultrasound emission probe 9 and ultrasonic receiving transducer 19 of separate type is close to respectively on the inwall of liquid outlet 18 belows of center flow channels part 2.Two probes relatively, its planar ends is all downward, the direction of coming towards fluid makes progress simultaneously as the planar ends of two probes, also can work.
In the present embodiment, because two probes are installed in the middle part of center flow channels, cross section of fluid channel herein is long-pending to diminish, and relatively is suitable for the flow measurement of little produced quantity oil well.In order further to improve the sensitivity that low discharge is measured, a conflux ring 12 is housed two relative Doppler active regions of probe transducing sheet.The external diameter of conflux ring 12 is consistent with the internal diameter of center flow channels.The outside of conflux ring 12 has groove 22, and the cable of being convenient to connect upper and lower section of instrument passes through.The upper and lower end face of conflux ring 12 is designed to the circular conical surface of tap web in ring, to reduce the resistance of convection cell.The central through-flow area of conflux ring is identical or slightly little with the flow area that the probe place is installed.Conflux ring 12 wall thickness reduce the cross section of fluid channel of Doppler active region, have accelerated the rate of flow of fluid of Doppler active region, have improved the multinomial technical feature of flowmeter.
Fig. 1, Fig. 4, Fig. 6, among Fig. 7, acoustic Doppler well flowmeter of the present invention, its basic structure is identical with embodiment 2, be the probe that separate type is set in the center flow channels part equally, difference is that contour structures and the separate type among the embodiment 2 of the separate type probe that is provided with in the center flow channels part profile of popping one's head in is slightly variant, in the present embodiment, be the long radius face of cylinder and minor radius face of cylinder intersection intercepting partial volume with the probe of the formation separate type among the embodiment 2, become a plane, thereby constitute new separate type probe by two crossing faces of cylinder and two planes.
Embodiments of the invention 2 are identical with embodiment 1 with the underground work state of embodiment 3 described flowmeters, metering circuit part among embodiment 1, embodiment 2 and the embodiment 3 all adopts circuit working principle shown in Figure 6, and the ultrasonic transduction sheet among the embodiment is the commercially available prod.
Claims (7)
1. an acoustic Doppler well flowmeter is an elongated cylindrical structural, comprises fluid current-collecting device, center flow channels part and metering circuit part, and current-collecting device comprises current collecting umbrella (1) and drive motor (21); Metering circuit part (3) contains emission driving circuit (13), ultrasonic reception amplifying circuit (14), Doppler frequency detects and treatment circuit (15) and data transmission circuit (16), and connects successively; It is characterized in that: the bottom of flowmeter is provided with current-collecting device, and the middle part is a center flow channels part (2), and top is the metering circuit part (3) of carrying out DATA REASONING, processing, transmission; Center flow channels part (2) is the cylindrical tube of a hollow, and the circumferencial direction of the tube wall (6) of center flow channels part (2) cylindrical tube lower end is provided with inlet, and the circumferencial direction of the tube wall on inlet top (6) is provided with liquid outlet; In center flow channels part (2), be set with the ultrasound emission probe and the ultrasonic receiving transducer that constitute by ultrasonic transduction sheet and signal transmssion line, contain ultrasound emission transducing sheet on the end face of ultrasound emission probe, contain ultrasonic reception transducing sheet on the end face of ultrasonic receiving transducer.
2. acoustic Doppler well flowmeter according to claim 1, it is characterized in that: be set with integral type probe (4) in the described center flow channels part (2), integral type probe (4) is a cylindrical structural, is fixedly installed on the top of the liquid outlet (8) in the center flow channels part (2); Contain ultrasound emission transducing sheet (5) on the ultrasound emission probe lower surface of integral type probe (4), contain ultrasonic reception transducing sheet (45) on the lower surface of ultrasonic receiving transducer, ultrasound emission transducing sheet (5) and ultrasonic reception transducing sheet (45) have a pitch angle respectively and between the cylinder axis of integral type probe (4); The internal diameter of the cylindrical tube of the columniform external diameter of integral type probe (4) and center flow channels part (2) is complementary.
3. acoustic Doppler well flowmeter according to claim 2 is characterized in that: the pitch angle between the cylinder axis of described emission transducing sheet (5), reception transducing sheet (45) and integral type probe (4) is 70 °～88 °.
4. acoustic Doppler well flowmeter according to claim 2 is characterized in that: the cyclotomy shape that is shaped as circle or intercepting part area of described ultrasound emission transducing sheet (5) and ultrasonic reception transducing sheet (45).
5. acoustic Doppler well flowmeter according to claim 1, it is characterized in that: be provided with ultrasound emission probe (9) and the ultrasonic receiving transducer (19) of separate type between the inlet (17) of described center flow channels part (2) and the liquid outlet (18), also be provided with conflux ring (12); The ultrasound emission probe (9) of separate type is by two crossing long radius faces of cylinder (11) and the minor radius face of cylinder (10) and a planar end formation, and ultrasonic receiving transducer (19) is identical with the structure of ultrasound emission probe (9); The ultrasound emission of separate type probe (9) and ultrasonic receiving transducer (19) correspondence are arranged on center flow channels partly on the inwall (6) of the cylindrical tube of (2), contain ultrasound emission transducing sheet (25) on the planar end of ultrasound emission probe (9), contain ultrasonic reception transducing sheet (35) on the planar end of ultrasonic receiving transducer (19); On the tube wall (6) between conflux ring (12) is arranged on above the below of the ultrasound emission probe (9) of separate type of center flow channels part (2) and ultrasonic receiving transducer (19) and the inlet (17); The long radius face of cylinder in the ultrasound emission of separate type probe (9) and the ultrasonic receiving transducer (19) all with center flow channels partly the curvature of the inner cylinder face of the tube wall (6) of (2) be complementary, the axis on the minor radius face of cylinder is vertical with the planar end that separate type is popped one's head in; The internal diameter of the tube wall (6) of conflux ring (12) external diameter and center flow channels part (2) is complementary.
6. acoustic Doppler well flowmeter according to claim 5, it is characterized in that: the angle between two crossing face of cylinder axis of the ultrasound emission probe (9) of described formation separate type is 5 °～45 °, and the angle between two crossing face of cylinder axis of the ultrasonic receiving transducer (19) of formation separate type also is 5 °～45 °.
7. acoustic Doppler well flowmeter according to claim 1 is characterized in that: the tube wall (6) of described center flow channels part (2) is gone up the inlet and the liquid outlet that are provided with and is respectively 2～8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610020720 CN1847801A (en) | 2006-04-14 | 2006-04-14 | Acoustic Doppler well flowmeter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610020720 CN1847801A (en) | 2006-04-14 | 2006-04-14 | Acoustic Doppler well flowmeter |
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| CN1847801A true CN1847801A (en) | 2006-10-18 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265276A (en) * | 2014-09-12 | 2015-01-07 | 中国石油集团长城钻探工程有限公司测井公司 | Specific resistance tracer agent based flow measuring method and flowmeter |
| CN106197583A (en) * | 2016-07-29 | 2016-12-07 | 西安海特电子仪器有限责任公司 | A kind of environment ultrasonic isotopic tracing flow meter and measuring method thereof |
| CN109358660A (en) * | 2018-12-10 | 2019-02-19 | 美钻深海能源科技研发（上海）有限公司 | A kind of deep water hydrocarbon field seabed jumper pipe flow assurance monitoring system |
| CN110567543A (en) * | 2019-10-28 | 2019-12-13 | 北京奥特美克科技股份有限公司 | channel flow measuring equipment |
| CN112304806A (en) * | 2020-11-02 | 2021-02-02 | 吉林大学 | Underground ultrasonic viscosity measuring device and measuring method thereof |
-
2006
- 2006-04-14 CN CN 200610020720 patent/CN1847801A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265276A (en) * | 2014-09-12 | 2015-01-07 | 中国石油集团长城钻探工程有限公司测井公司 | Specific resistance tracer agent based flow measuring method and flowmeter |
| CN106197583A (en) * | 2016-07-29 | 2016-12-07 | 西安海特电子仪器有限责任公司 | A kind of environment ultrasonic isotopic tracing flow meter and measuring method thereof |
| CN109358660A (en) * | 2018-12-10 | 2019-02-19 | 美钻深海能源科技研发（上海）有限公司 | A kind of deep water hydrocarbon field seabed jumper pipe flow assurance monitoring system |
| CN110567543A (en) * | 2019-10-28 | 2019-12-13 | 北京奥特美克科技股份有限公司 | channel flow measuring equipment |
| CN112304806A (en) * | 2020-11-02 | 2021-02-02 | 吉林大学 | Underground ultrasonic viscosity measuring device and measuring method thereof |
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