CN102900422A - Downhole flow tester and downhole flow testing method - Google Patents
Downhole flow tester and downhole flow testing method Download PDFInfo
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- CN102900422A CN102900422A CN2012103708272A CN201210370827A CN102900422A CN 102900422 A CN102900422 A CN 102900422A CN 2012103708272 A CN2012103708272 A CN 2012103708272A CN 201210370827 A CN201210370827 A CN 201210370827A CN 102900422 A CN102900422 A CN 102900422A
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- piezo
- downhole flow
- crystal probe
- fluid
- electric crystal
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- 238000012360 testing method Methods 0.000 title abstract description 9
- 239000012530 fluid Substances 0.000 claims abstract description 42
- 239000013078 crystal Substances 0.000 claims abstract description 37
- 239000000523 sample Substances 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 230000000541 pulsatile effect Effects 0.000 claims description 23
- 238000010998 test method Methods 0.000 claims description 15
- 238000012545 processing Methods 0.000 claims description 10
- 238000012544 monitoring process Methods 0.000 abstract description 14
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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Abstract
The invention discloses a downhole flow tester and a downhole flow testing method, wherein the downhole flow tester is arranged at an injected water flowing section and comprises: the water pump comprises a shell, wherein a pipeline through which injected water flows is arranged in the shell; a rotator which forms injected water into a vortex fluid is arranged at the front end in the pipeline, a guide cone which guides the vortex fluid is arranged behind the rotator, a piezoelectric crystal probe which converts a pulse impact signal of the vortex fluid into an electric pulse signal is arranged behind the guide cone, and the piezoelectric crystal probe is provided with an arc receiving surface which receives the pulse impact signal; in the pipeline, an expansion cavity which enables the eddy current body to form a fluid which flows smoothly is further arranged behind the piezoelectric crystal probe. The underground flow tester and the underground flow testing method can realize real-time monitoring of underground flow and can reach a lower power consumption level during monitoring.
Description
Technical field
The present invention relates to the oil-field flooding technical field, relate in particular to downhole flow tester and downhole flow method of testing.
Background technology
China's separate zone waterflooding technology has been obtained remarkable effect at aspects such as economical and effective exploitation, lasting stable high yield, raising waterflood recovery efficiency factors, and level in the world is in a leading position.Develop seperated layer water injection, realize Effective water injection, improve the inevitable choice that development effectiveness is the high water-cut development later stage.
All be to realize by the mode that is lowered to measurement and adjustment instrument on ground to the monitoring of each interval parameter of water injection well at present, can't obtain real time data.
Summary of the invention
The embodiment of the invention provides a kind of downhole flow tester, and in order to realize the Real-Time Monitoring of downhole flow, described downhole flow tester is installed on the injected water section of flowing through, and described downhole flow tester comprises:
Housing is provided with the pipeline of flowing through for injected water in the described housing;
In described pipeline, front end is provided with the spigot that rises that injected water is formed the whirlpool fluid, be provided with the starting taper that described whirlpool fluid is led behind described the spigot, be provided with the piezo-electric crystal probe that the pulsatile impact signal of described whirlpool fluid is converted to electric impulse signal behind the described starting taper, described piezo-electric crystal probe has the circular arc receiving plane that receives described pulsatile impact signal;
In described pipeline, also be provided with the extended cavity that makes described eddy-currents body form the fluid of smooth flow behind the described piezo-electric crystal probe.
In one embodiment, described piezo-electric crystal probe also is connected to and is positioned at flow sensor signal processing module described downhole flow tester outside, obtain flow parameter according to described electric impulse signal.
The embodiment of the invention also provides a kind of downhole flow method of testing, and in order to realize the Real-Time Monitoring of downhole flow, described downhole flow method of testing comprises:
In the injected water section of flowing through, play spigot injected water is formed the whirlpool fluid;
Starting taper is directed to the piezo-electric crystal probe with described whirlpool fluid;
The circular arc receiving plane of described piezo-electric crystal probe receives the pulsatile impact signal of described whirlpool fluid;
Described piezo-electric crystal probe is converted to electric impulse signal with described pulsatile impact signal;
Described whirlpool fluid also forms the fluid of smooth flow by extended cavity behind the described piezo-electric crystal probe of flowing through.
In one embodiment, after described piezo-electric crystal probe is converted to electric impulse signal with described pulsatile impact signal, also described electric impulse signal is sent to the flow sensor signal processing module;
Described flow sensor signal processing module obtains flow parameter according to described electric impulse signal.
The downhole flow tester of the embodiment of the invention and downhole flow method of testing can realize the Real-Time Monitoring of downhole flow, and can reach lower power consumption levels when monitoring; Wherein utilize spigot that injected water is formed the whirlpool fluid, need not to utilize straight length namely can carry out rectification to injected water, can reduce to test required duct length; Utilize the circular arc receiving plane of piezo-electric crystal probe to receive the pulsatile impact signal, can improve the conversion efficiency that the pulsatile impact signal is converted to electric impulse signal.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, the accompanying drawing of required use was done to introduce simply during the below will describe embodiment, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.In the accompanying drawings:
Fig. 1 is the structural representation of downhole flow tester in the embodiment of the invention;
Fig. 2 is the process chart of downhole flow method of testing in the embodiment of the invention.
The specific embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention is clearer, below in conjunction with accompanying drawing the embodiment of the invention is described in further details.At this, illustrative examples of the present invention and explanation thereof are used for explanation the present invention, but not as a limitation of the invention.
In order to realize the Real-Time Monitoring of downhole flow under lower power consumption levels, the embodiment of the invention provides a kind of downhole flow tester, and this downhole flow tester is installed on the injected water section of flowing through.Fig. 1 is the structural representation of downhole flow tester in the embodiment of the invention.As shown in Figure 1, the downhole flow tester can comprise in the embodiment of the invention:
Housing 1 is provided with the pipeline 2 of flowing through for injected water in the housing 1;
In pipeline 2, front end is provided with a spigot 3 that injected water is formed the whirlpool fluid, be provided with the starting taper 4 that the whirlpool fluid is led after playing spigot 3, be provided with the piezo-electric crystal probe 5 that the pulsatile impact signal of whirlpool fluid is converted to electric impulse signal behind the starting taper 4, piezo-electric crystal probe 5 has the circular arc receiving plane 6 that receives the pulsatile impact signal.
Can be learnt by structure shown in Figure 1, the downhole flow tester of the embodiment of the invention can be realized the Real-Time Monitoring of downhole flow, and can reach lower power consumption levels when monitoring, for example can utilize battery to power.
During implementation, utilize spigot that injected water is formed the whirlpool fluid, need not to utilize straight length namely can carry out rectification to injected water, can reduce to test required duct length.After injected water has passed through spigot, can produce the whirlpool of certain rule.
During implementation, utilize starting taper that the whirlpool fluid is led, the whirlpool fluid acts on the circular arc receiving plane of piezo-electric crystal probe after the starting taper guiding.Utilize the circular arc receiving plane of piezo-electric crystal probe to receive the pulsatile impact signal, can improve the conversion efficiency that the pulsatile impact signal is converted to electric impulse signal.
As shown in Figure 1, in one embodiment, in pipeline 2, behind the piezo-electric crystal probe 5 extended cavity 7 that makes the eddy-currents body form the fluid of smooth flow can also be set.
During implementation, the whirlpool fluid enters extended cavity through starting taper, piezo-electric crystal after popping one's head in, and forms the fluid of smooth flow, is conducive to reduce pulsation, improves signal to noise ratio, improves the flow rate test precision.
In one embodiment, piezo-electric crystal probe can also be connected to and be positioned at flow sensor signal processing module downhole flow tester outside, obtain flow parameter according to electric impulse signal.The flow sensor signal processing module can receive the electric impulse signal that the piezo-electric crystal probe transmits, and obtains flow parameter according to electric impulse signal.During implementation, the size of fluid flow can be to be directly proportional with the umber of pulse that produces.
Based on same inventive concept, also provide a kind of downhole flow method of testing in the embodiment of the invention, as described in the following examples.Because the principle that the downhole flow method of testing is dealt with problems is similar to the downhole flow tester, so the enforcement of downhole flow method of testing can referring to the enforcement of downhole flow tester, repeat part and repeat no more.
Fig. 2 is the process chart of downhole flow method of testing in the embodiment of the invention.As shown in Figure 2, the downhole flow method of testing can comprise in the embodiment of the invention:
The circular arc receiving plane of step 203, piezo-electric crystal probe receives the pulsatile impact signal of whirlpool fluid;
Can be learnt that by flow process shown in Figure 2 the downhole flow method of testing of the embodiment of the invention can realize the Real-Time Monitoring of downhole flow, and can reach lower power consumption levels when monitoring.
During implementation, utilize spigot that injected water is formed the whirlpool fluid, need not to utilize straight length namely can carry out rectification to injected water, can reduce to test required duct length; Utilize the circular arc receiving plane of piezo-electric crystal probe to receive the pulsatile impact signal, can improve the conversion efficiency that the pulsatile impact signal is converted to electric impulse signal.
In one embodiment, the whirlpool fluid can also form by extended cavity the fluid of smooth flow behind the piezo-electric crystal probe of flowing through, be conducive to like this reduce pulsation, improves signal to noise ratio, improves the flow rate test precision.
In one embodiment, after the piezo-electric crystal probe is converted to electric impulse signal with the pulsatile impact signal, electric impulse signal can also be sent to the flow sensor signal processing module; The flow sensor signal processing module can according to electric impulse signal, obtain flow parameter.Wherein, the size of fluid flow can be to be directly proportional with the umber of pulse that produces.
In sum, the downhole flow tester of the embodiment of the invention and downhole flow method of testing can realize the Real-Time Monitoring of downhole flow, and can reach lower power consumption levels when monitoring; Wherein utilize spigot that injected water is formed the whirlpool fluid, need not to utilize straight length namely can carry out rectification to injected water, can reduce to test required duct length; Utilize the circular arc receiving plane of piezo-electric crystal probe to receive the pulsatile impact signal, can improve the conversion efficiency that the pulsatile impact signal is converted to electric impulse signal.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiments of the invention; the protection domain that is not intended to limit the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a downhole flow tester is characterized in that, described downhole flow tester is installed on the injected water section of flowing through, and described downhole flow tester comprises:
Housing is provided with the pipeline of flowing through for injected water in the described housing;
In described pipeline, front end is provided with the spigot that rises that injected water is formed the whirlpool fluid, be provided with the starting taper that described whirlpool fluid is led behind described the spigot, be provided with the piezo-electric crystal probe that the pulsatile impact signal of described whirlpool fluid is converted to electric impulse signal behind the described starting taper, described piezo-electric crystal probe has the circular arc receiving plane that receives described pulsatile impact signal;
In described pipeline, also be provided with the extended cavity that makes described eddy-currents body form the fluid of smooth flow behind the described piezo-electric crystal probe.
2. downhole flow tester as claimed in claim 1 is characterized in that, described piezo-electric crystal probe also is connected to and is positioned at flow sensor signal processing module described downhole flow tester outside, obtain flow parameter according to described electric impulse signal.
3. a downhole flow method of testing is characterized in that, comprising:
In the injected water section of flowing through, play spigot injected water is formed the whirlpool fluid;
Starting taper is directed to the piezo-electric crystal probe with described whirlpool fluid;
The circular arc receiving plane of described piezo-electric crystal probe receives the pulsatile impact signal of described whirlpool fluid;
Described piezo-electric crystal probe is converted to electric impulse signal with described pulsatile impact signal;
Described whirlpool fluid also forms the fluid of smooth flow by extended cavity behind the described piezo-electric crystal probe of flowing through.
4. downhole flow method of testing as claimed in claim 3 is characterized in that, after described piezo-electric crystal probe is converted to electric impulse signal with described pulsatile impact signal, also described electric impulse signal is sent to the flow sensor signal processing module;
Described flow sensor signal processing module obtains flow parameter according to described electric impulse signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210370827.2A CN102900422B (en) | 2012-09-28 | 2012-09-28 | Downhole flow tester and downhole flow testing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210370827.2A CN102900422B (en) | 2012-09-28 | 2012-09-28 | Downhole flow tester and downhole flow testing method |
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| Publication Number | Publication Date |
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| CN102900422A true CN102900422A (en) | 2013-01-30 |
| CN102900422B CN102900422B (en) | 2015-07-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113324597A (en) * | 2021-05-26 | 2021-08-31 | 天津新星科能源技术有限公司 | Method for simultaneously monitoring oil-gas-water three-phase flow |
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| CN101929315A (en) * | 2009-11-12 | 2010-12-29 | 王晓东 | Well cleanup detecting device used for oil wells |
| CN102137981A (en) * | 2008-06-27 | 2011-07-27 | 瓦伊德·拉希德 | Drilling tool and method for widening and simultaneously monitoring the diameter of wells and the properties of the fluid |
| US20110272140A1 (en) * | 2007-07-27 | 2011-11-10 | Schlumberger Technology Corporation | Field joint for a downhole tool |
| CN102251765A (en) * | 2011-07-25 | 2011-11-23 | 中国科学院力学研究所 | Axial type inlet oil-water cyclone separator |
| CN102322051A (en) * | 2011-07-15 | 2012-01-18 | 中铁第四勘察设计院集团有限公司 | Rotary static pressure injection type cone static penetration coupler |
| CN202914073U (en) * | 2012-09-28 | 2013-05-01 | 中国石油天然气股份有限公司 | Downhole flow tester |
-
2012
- 2012-09-28 CN CN201210370827.2A patent/CN102900422B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1624295A (en) * | 2003-12-01 | 2005-06-08 | 施卢默格海外有限公司 | Downhole fluid pumping apparatus and method |
| CN1796948A (en) * | 2004-12-28 | 2006-07-05 | 周敬训 | Continuous method for testing stratified flux under well and instrument |
| US20110272140A1 (en) * | 2007-07-27 | 2011-11-10 | Schlumberger Technology Corporation | Field joint for a downhole tool |
| CN102137981A (en) * | 2008-06-27 | 2011-07-27 | 瓦伊德·拉希德 | Drilling tool and method for widening and simultaneously monitoring the diameter of wells and the properties of the fluid |
| CN101929315A (en) * | 2009-11-12 | 2010-12-29 | 王晓东 | Well cleanup detecting device used for oil wells |
| CN102322051A (en) * | 2011-07-15 | 2012-01-18 | 中铁第四勘察设计院集团有限公司 | Rotary static pressure injection type cone static penetration coupler |
| CN102251765A (en) * | 2011-07-25 | 2011-11-23 | 中国科学院力学研究所 | Axial type inlet oil-water cyclone separator |
| CN202914073U (en) * | 2012-09-28 | 2013-05-01 | 中国石油天然气股份有限公司 | Downhole flow tester |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113324597A (en) * | 2021-05-26 | 2021-08-31 | 天津新星科能源技术有限公司 | Method for simultaneously monitoring oil-gas-water three-phase flow |
| CN113324597B (en) * | 2021-05-26 | 2023-09-08 | 天津新星科能源技术有限公司 | Method for simultaneously monitoring oil, gas and water three-phase flow |
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| CN102900422B (en) | 2015-07-08 |
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