CN203239318U - Oil-water two-phase flow measuring system of horizontal well - Google Patents
Oil-water two-phase flow measuring system of horizontal well Download PDFInfo
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- CN203239318U CN203239318U CN 201320095222 CN201320095222U CN203239318U CN 203239318 U CN203239318 U CN 203239318U CN 201320095222 CN201320095222 CN 201320095222 CN 201320095222 U CN201320095222 U CN 201320095222U CN 203239318 U CN203239318 U CN 203239318U
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- 230000005514 two-phase flow Effects 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 238000005259 measurement Methods 0.000 claims abstract description 50
- 239000012530 fluid Substances 0.000 claims abstract description 29
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims description 16
- 230000007246 mechanism Effects 0.000 claims description 9
- 230000003321 amplification Effects 0.000 claims description 5
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 abstract 3
- 238000000034 method Methods 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 12
- 238000012545 processing Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 238000004590 computer program Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000012067 mathematical method Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 235000019476 oil-water mixture Nutrition 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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Abstract
The utility model discloses a horizontal well oil-water two-phase flow measuring system, which is used for measuring the liquid flow in the casing of a horizontal well, the measuring system comprises a horizontal well oil-water two-phase flow measuring device and a ground device, and the ground device is connected with the measuring device through a multi-core logging cable; the measuring device comprises: the current collector is used for plugging an annular space between the measuring channel of the measuring device and the sleeve so as to enable fluid to flow into the measuring channel from a liquid inlet of the current collector; the heating component is arranged in the measuring channel and used for heating the fluid flowing into the measuring channel; the two temperature sensors are arranged in the measuring channel and used for collecting temperature signals of fluid flowing into the measuring channel; and the downhole circuit is used for controlling the current collector, the heating component and the two temperature sensors and transmitting the temperature signals to surface equipment to generate flow measurement results.
Description
Technical field
The utility model particularly about the oilfield horizontal well flow measurement technology, is a kind of horizontal well oil-water two-phase flow system for measuring quantity about flow measurement technology concretely.
Background technology
In the prior art, in high aqueous level well production profile logging, be widely used turbine flowmeter and carry out flow measurement.But, than low discharge the time, the turbine flowmeter less stable; Because turbine flowmeter has mechanical gyro unit, easily stuck by the down-hole foreign matter simultaneously, cause the flow measurement failure, affect success log ratio low.
The turbine flowmeter production profile logging instrument that prior art adopts can not satisfy the contradiction of high aqueous level well production profile dynamic monitoring actual demand fully, and turbine flowmeter has the shortcoming of mechanical gyro unit.
The utility model content
The utility model also provides a kind of horizontal well oil-water two-phase flow system for measuring quantity, be used for measuring the sleeve pipe fluid flow of horizontal well, described measuring system comprises horizontal well oil-water two-phase flow measuring device and ground installation, and described ground installation is connected with described measurement mechanism by the multicore logging cable; Wherein,
Described measurement mechanism comprises:
Current collector is used for the measurement passage of the described measurement mechanism of shutoff and the annular space between the sleeve pipe, so that fluid flows into described measurement passage from the inlet of described current collector;
Heat generating components is arranged in the described measurement passage, is used for the fluid that flows into described measurement passage is heated;
The two temperatures sensor is arranged in the described measurement passage, for the temperature signal of the fluid that gathers the described measurement passage of described inflow;
Electric circuit in well is used for controlling described current collector, heat generating components and two temperatures sensor, and described temperature signal is transferred to ground installation to generate the flow measurement result.
Preferably, the inlet of the utility model current collector is arranged at the lower end of described current collector.
Preferably, the opposite end of the utility model current collector inlet is provided with liquid outlet.
Preferably, the utility model electric circuit in well comprises: power circuit, DC/DC circuit, filter amplification circuit, V/F change-over circuit, signal circuit.
Among the utility model embodiment, ground power supply, decoder and PC, ground power supply is connected with the power circuit of electric circuit in well by the multicore logging cable, and signal circuit is transferred to PC with the signal that gathers by decoding circuit by the multicore logging cable.
Solve the contradiction that existing turbine flowmeter production profile logging instrument can not satisfy high aqueous level well production profile dynamic monitoring actual demand fully, and overcome the shortcoming that existing turbine flowmeter has mechanical gyro unit, accurately measuring for high aqueous level well production profile oil-water two-phase flow flow provides technical support.
For above and other purpose of the present utility model, feature and advantage can be become apparent, preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structured flowchart of the utility model horizontal well oil-water two-phase flow system for measuring quantity;
Fig. 2 is the schematic diagram of spike flow meter among the utility model embodiment;
Fig. 3 is present embodiment measuring transducer assembly structural representation;
Fig. 4 is the system block diagram of the disclosed horizontal well oil-water two-phase flow of the utility model embodiment system for measuring quantity.
The specific embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, the utility model discloses a kind of horizontal well oil-water two-phase flow system for measuring quantity, be used for measuring the sleeve pipe fluid flow of horizontal well, this system comprises horizontal well oil-water two-phase flow measuring device and ground installation 106, and ground installation 106 is connected with measurement mechanism by the multicore logging cable; As shown in Figure 1, measurement mechanism of the present utility model comprises:
Temperature pick up 103 and temperature pick up 104 are axially set in and measure in the passage, are used for gathering the temperature signal that the fluid of passage is measured in described inflow;
Electric circuit in well 105 is used for controlling described current collector, heat generating components and two temperatures sensor, and described temperature signal is transferred to ground installation to generate the flow measurement result.
Among the utility model embodiment, the inlet of current collector is arranged at the lower end of current collector.
Among the utility model embodiment, the opposite end of current collector inlet is provided with liquid outlet.
Among the utility model embodiment, electric circuit in well comprises: power circuit, DC/DC circuit, filter amplification circuit, V/F change-over circuit, signal circuit.
The utility model is a kind of thermal trace correlation flowmeters without movable member for the flow measurement of horizontal well oil-water two-phase flow.The utility model is the measuring principle according to the correlation measurement fluid flow, has developed the flow meter based on the thermal trace correlation method without movable member, is used for measuring high aqueous level well production profile oil-water two-phase flow flow.
The measuring principle of technical solutions of the utility model is: after certain fathoms a little when flow meter arrival oil well, at first power to current collector, make current collector open annular space between shutoff flow meter and the sleeve pipe, force the oil-water two-phase flow fluid in the sleeve pipe to enter the measurement passage from the inlet of current collector, and the measuring transducer of flowing through, flow out flow meter by liquid outlet at last, finish the flow measurement of a measuring point.
When flow when measuring transducer is measured passage, a larger instantaneous power is provided for the heat generating components of flow meter, heat generating components can add rapidly the fluid that flows in the thermal measurement passage by the heat conduction, therefore can form the spike hot arc plug flow body that one section temperature is higher than the fluid ambient temperature, when spike hot arc plug flow body continue to flow when being the temperature pick up of l through two axial spaces distances, owing to the reason that has fluid temperature difference, can cause the measuring-signal sudden change of two temperature pick ups, because the temperature signal of two temperature sensor measurements has time lag in time domain, can calculate this time lag t by mathematical method time domain cross correlation algorithm simultaneously.
If the runner internal diameter of known mass flow instrumentation quantity sensor pipeline section is that the spacing of d, two temperature pick ups is l, as long as calculate the flow through time lag t of two temperature pick ups of hot arc plug flow body, flowing velocity v that just can Fluid Computation and the total flow q of oil-water two-phase flow body namely have following relational expression to set up:
v＝l/t (1)
q＝kvπd
2/4 (2)
K in the formula (2) is the flow calibration coefficient, can try to achieve by demarcating at experimental rig.
Embodiment below in conjunction with concrete elaborates to technical solutions of the utility model.
The thermal trace correlation flowmeters without movable member that are used for the flow measurement of horizontal well oil-water two-phase flow that present embodiment provides, its apparatus structure as shown in Figure 2, when oil water mixture flows in sleeve pipe from bottom to top, at first driving current collector by current collector assembly 201 opens, annular space between shutoff logger and the sleeve pipe, carry out the fluid afflux, fluid enters the measuring transducer passage from lower inlet 202 behind the afflux, carries out the measurement of oil-water two-phase flow flow.When carrying out flow measurement, at first provide a larger instantaneous power by the signal processing circuit of instrument to the heat generating components 204 of measuring transducer assembly, heat generating components can add rapidly by the heat conduction fluid of heat flow, therefore can form the spike hot arc plug flow body that one section temperature is higher than the fluid ambient temperature, when spike hot arc plug flow body continues to flow through two temperature pick ups 205 and 209, owing to the reason that has fluid temperature difference, can cause the measuring-signal sudden change of two temperature pick ups, signal processing circuit is transferred to ground installation with temperature signal, because the temperature signal of two temperature sensor measurements has time lag in time domain, can calculate this time lag by mathematical method time domain cross correlation algorithm, further calculate fluid flow.In the present embodiment, signal processing circuit is arranged in the signal processing circuit cylinder 207, controls current collector, heater block, temperature pick up, and the signal of temperature pick up is transferred to ground installation.
In the present embodiment to the design of current collector inlet:
In the prior art, the general current collector of production profile is umbrella formula current collector, the upper and lower end of current collector has inlet and lower inlet, fluid in the pit shaft is behind the current collector afflux, flow into simultaneously the measurement of carrying out flow in the measurement passage from upper and lower inlet, current collector inlet structure of the present utility model is different from the current collector structure of prior art, the utility model is not opened inlet in the current collector upper end, only have lower inlet in the lower end, and the area of the lower inlet of increasing, the upper and lower inlet gross area of its area and original structure is equated.Its objective is in the situation that reduce tool length, the steady flow segment length that increase oil-water two-phase flow body enters the measurement passage, stability and the reliability of raising apparatus measures as far as possible.
The design of the total bearing structure of present embodiment measuring transducer
As shown in Figure 3, be designed with foremost a heat generating components 301 at the measuring transducer assembly, the oil-water two-phase flow body is heated, produce spike hot arc plug flow body, be designed with respectively two temperature pick ups 302,303 at the back of heat generating components certain distance, two temperature pick ups 302,303 space length are l, and two temperature pick ups are used for measuring flow through respectively their temperature of spike hot arc plug flow body that heat generating components produces.Two territory cross correlation algorithm computings of further elapsed time of temperature signal can calculate the flow through time lag of two temperature pick ups of spike hot arc plug flow body.The total bearing structure of this sensor is integrated in one heat generating components and two temperature pick ups, make whole measuring transducer structure without the turbo blade rotation when measuring of the relative turbine flowmeter of movable member, make things convenient for installing/dismounting, since when carrying out flow measurement without movable member, so can improve reliability and the success log ratio of measurement.
As shown in Figure 4, system block diagram for the disclosed horizontal well oil-water two-phase flow of the utility model embodiment system for measuring quantity, be comprised of flow measuring sensor 401, current collector 402, electric circuit in well 403 and ground installation 404, ground installation 404 is connected with electric circuit in well 403 by the multicore logging cable.Electric circuit in well in the present embodiment mainly comprises power circuit, DC/DC circuit, filter amplification circuit, V/F change-over circuit, signal circuit, and ground installation mainly comprises ground power supply, decoding circuit and PC terminal.
The specific implementation process is: ground power supply is grown the distance power supply by the multicore logging cable to the underground instrument signal treatment circuit, opening and closing by signal processing circuit control current collector, and provide the constant-current voltage-stabilizing power output for the heat generating components of flow measuring sensor, when the oil-water two-phase flow flow is crossed heat generating components, signal processing circuit provides instantaneous power to heat generating components, and then add hot fluid by heat conduction, produce spike hot arc plug flow body, when spike hot arc plug flow body flows through two temperature pick ups, the output signal of temperature pick up is through carrying out the V/F conversion behind the filter and amplification, and after the signal circuit conditioning, upload to ground installation by logging cable, enter the PC terminal through decoding circuit again, process through data, carry out the flow indication.
The utility model solves the contradiction that existing turbine flowmeter production profile logging instrument can not satisfy high aqueous level well production profile dynamic monitoring actual demand fully, and overcome the shortcoming that existing turbine flowmeter has mechanical gyro unit, accurately measuring for high aqueous level well production profile oil-water two-phase flow flow provides technical support.And present experimental result explanation: in flow 5m3/d～40m3/d, moisture content 90%～100% scope, the flow measurement error that this instrument obtains has preferably measurement effect in ± 10%, can satisfy the practical logging demand.
Those skilled in the art should understand, embodiment of the present utility model can be provided as method, system or computer program.Therefore, the utility model can adopt complete hardware implementation example, complete implement software example or in conjunction with the form of the embodiment of software and hardware aspect.And the utility model can adopt the form of the computer program of implementing in one or more computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.
The utility model is that reference is described according to flow chart and/or the block diagram of method, equipment (system) and the computer program of the utility model embodiment.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device producing a machine, so that the instruction of carrying out by the processor of computer or other programmable data processing device produces the device that is used for realizing in the function of flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, so that the instruction that is stored in this computer-readable memory produces the manufacture that comprises command device, this command device is realized the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device, so that carry out the sequence of operations step producing computer implemented processing at computer or other programmable devices, thereby be provided for realizing the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame in the instruction that computer or other programmable devices are carried out.
Used specific embodiment in the utility model principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (5)
1. horizontal well oil-water two-phase flow system for measuring quantity, be used for measuring the sleeve pipe fluid flow of horizontal well, it is characterized in that, described measuring system comprises horizontal well oil-water two-phase flow measuring device and ground installation, and described ground installation is connected with described measurement mechanism by the multicore logging cable; Wherein,
Described measurement mechanism comprises:
Current collector is used for the measurement passage of the described measurement mechanism of shutoff and the annular space between the sleeve pipe, so that fluid flows into described measurement passage from the inlet of described current collector;
Heat generating components is arranged in the described measurement passage, is used for the fluid that flows into described measurement passage is heated;
The two temperatures sensor is arranged in the described measurement passage, for the temperature signal of the fluid that gathers the described measurement passage of described inflow;
Electric circuit in well is used for controlling described current collector, heat generating components and two temperatures sensor, and described temperature signal is transferred to ground installation to generate the flow measurement result.
2. measuring system as claimed in claim 1 is characterized in that, the inlet of described current collector is arranged at the lower end of described current collector.
3. measuring system as claimed in claim 2 is characterized in that, the opposite end of described current collector inlet is provided with liquid outlet.
4. measuring system as claimed in claim 1 is characterized in that, described electric circuit in well comprises: power circuit, DC/DC circuit, filter amplification circuit, V/F change-over circuit, signal circuit.
5. measuring system as claimed in claim 4, it is characterized in that, described ground installation comprises: ground power supply, decoder and PC, described ground power supply is connected with the power circuit of electric circuit in well by the multicore logging cable, and described signal circuit is transferred to PC with the signal that gathers by decoding circuit by the multicore logging cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320095222 CN203239318U (en) | 2013-03-01 | 2013-03-01 | Oil-water two-phase flow measuring system of horizontal well |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320095222 CN203239318U (en) | 2013-03-01 | 2013-03-01 | Oil-water two-phase flow measuring system of horizontal well |
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| CN203239318U true CN203239318U (en) | 2013-10-16 |
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| CN 201320095222 Expired - Fee Related CN203239318U (en) | 2013-03-01 | 2013-03-01 | Oil-water two-phase flow measuring system of horizontal well |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590808A (en) * | 2013-10-26 | 2014-02-19 | 中国石油化工集团公司 | Heat tracing ejector |
| CN104089664A (en) * | 2014-06-27 | 2014-10-08 | 中国石油大学(北京) | Thermal-pulse time-difference type oil-water two-phase flow measuring sensor |
| CN108397183A (en) * | 2018-03-06 | 2018-08-14 | 中国石油天然气股份有限公司 | Low-yield horizontal well production profile logging combination instrument with dual working modes |
| CN109443444A (en) * | 2018-12-17 | 2019-03-08 | 西安交通大学 | Utilize the method that water attack is condensed in flow pattern and temperature measuring device prediction pipeline |
| CN111369620A (en) * | 2019-12-23 | 2020-07-03 | 东北石油大学 | Horizontal oil-water two-phase flow velocity measurement method based on improved PIV |
| CN112901141A (en) * | 2021-02-02 | 2021-06-04 | 东北石油大学 | Method for measuring average flow velocity of oil-water two-phase flow with ultra-high water content level |
-
2013
- 2013-03-01 CN CN 201320095222 patent/CN203239318U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590808A (en) * | 2013-10-26 | 2014-02-19 | 中国石油化工集团公司 | Heat tracing ejector |
| CN103590808B (en) * | 2013-10-26 | 2016-11-16 | 中国石油化工集团公司 | A kind of thermal trace ejector |
| CN104089664A (en) * | 2014-06-27 | 2014-10-08 | 中国石油大学(北京) | Thermal-pulse time-difference type oil-water two-phase flow measuring sensor |
| CN104089664B (en) * | 2014-06-27 | 2017-08-25 | 中国石油大学(北京) | Heat pulse time difference type water-oil phase flow measurement sensor |
| CN108397183A (en) * | 2018-03-06 | 2018-08-14 | 中国石油天然气股份有限公司 | Low-yield horizontal well production profile logging combination instrument with dual working modes |
| CN108397183B (en) * | 2018-03-06 | 2020-01-14 | 大庆油田有限责任公司 | Low-yield horizontal well production profile logging combination instrument with dual working modes |
| CN109443444A (en) * | 2018-12-17 | 2019-03-08 | 西安交通大学 | Utilize the method that water attack is condensed in flow pattern and temperature measuring device prediction pipeline |
| CN109443444B (en) * | 2018-12-17 | 2020-03-31 | 西安交通大学 | Method for predicting water hammer in pipeline by using flow pattern and temperature measuring device |
| CN111369620A (en) * | 2019-12-23 | 2020-07-03 | 东北石油大学 | Horizontal oil-water two-phase flow velocity measurement method based on improved PIV |
| CN112901141A (en) * | 2021-02-02 | 2021-06-04 | 东北石油大学 | Method for measuring average flow velocity of oil-water two-phase flow with ultra-high water content level |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131016 |