CN102900422B - Underground flow tester and underground flow testing method - Google Patents
Underground flow tester and underground flow testing method Download PDFInfo
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- CN102900422B CN102900422B CN201210370827.2A CN201210370827A CN102900422B CN 102900422 B CN102900422 B CN 102900422B CN 201210370827 A CN201210370827 A CN 201210370827A CN 102900422 B CN102900422 B CN 102900422B
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Abstract
The invention discloses an underground flow tester and an underground flow testing method. The underground flow tester is installed on a section through which injected water flows. The underground flow tester comprises a housing, wherein a pipeline through which the injected water flows is arranged inside the housing, a generator through which the injected water can be formed to swirl fluid is arranged at the front end of the pipeline, a guide cone which is used for guiding the swirl fluid is arranged at the rear of the generator, a piezoelectric crystal probe which is used for converting pulsating impulse signals of the swirl fluid to electrical pulse signals is arranged at the rear of the guide cone, the piezoelectric crystal probe is provided with an arc-shaped receiving surface which is used for receiving the pulsating impulse signals, and an extending cavity which is used for enabling the swirl fluid to form fluid which flows smoothly is arranged at the rear of the piezoelectric crystal probe in the pipeline. By the aid of the method and the tester, the underground flow can be monitored in real time, and the power consumption is low during monitoring.
Description
Technical field
The present invention relates to oil-field flooding technical field, particularly relate to underground flow tester and downhole flow method of testing.
Background technology
China's separate zone waterflooding technology achieves remarkable effect in economical and effective exploitation, Sustainable high yield stable yields, raising waterflood recovery efficiency factor etc., and be in a leading position level in the world.Development seperated layer water injection, realize effective water filling, inevitable choice that suggestions for improvement is high water cut viscous heavy crude oil.
Be at present all that mode by entering measurement and adjustment instrument at underground realizes to the monitoring of each interval parameter of water injection well, cannot real time data be obtained.
Summary of the invention
The embodiment of the present invention provides a kind of underground flow tester, and in order to realize the Real-Time Monitoring of downhole flow, described underground flow tester is installed on injects current through section, and described underground flow tester comprises:
Housing, is provided with the pipeline for injecting current warp in described housing;
In described pipeline, front end is provided with the pipe cyclone by injecting water formation swirling fluid, the starting taper that described swirling fluid is led is provided with after described pipe cyclone, be provided with the piezo-electric crystal probe pulsatile impact signal of described swirling fluid being converted to electric impulse signal after described starting taper, described piezo-electric crystal probe has the circular arc receiving plane receiving described pulsatile impact signal;
In described pipeline, after described piezo-electric crystal probe, be also provided with the extended cavity making described swirling fluid form the fluid of smooth flow.
In one embodiment, described piezo-electric crystal probe is also connected to that be positioned at described underground flow tester outside, obtain flow parameter according to described electric impulse signal flow sensor signal processing module.
The embodiment of the present 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:
At injection current through section, pipe cyclone will inject water and form swirling fluid;
Described swirling fluid is directed to piezo-electric crystal probe by starting taper;
The circular arc receiving plane of described piezo-electric crystal probe receives the pulsatile impact signal of described swirling fluid;
Described pulsatile impact signal is converted to electric impulse signal by described piezo-electric crystal probe;
Described swirling fluid, after flowing through described piezo-electric crystal probe, also forms the fluid of smooth flow by extended cavity.
In one embodiment, after described pulsatile impact signal is converted to electric impulse signal by described piezo-electric crystal probe, also described electric impulse signal is sent to flow sensor signal processing module;
Described flow sensor signal processing module, according to described electric impulse signal, obtains flow parameter.
The underground flow tester of the embodiment of the present 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 pipe cyclone will inject water and form swirling fluid, namely can carry out rectification to injection water without using straight length, can reduce to test required duct length; The circular arc receiving plane utilizing piezo-electric crystal to pop one's head in receives pulsatile impact signal, can improve the conversion efficiency that pulsatile impact signal is converted to electric impulse signal.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.In the accompanying drawings:
Fig. 1 is the structural representation of underground flow tester in the embodiment of the present invention;
Fig. 2 is the process chart of downhole flow method of testing in the embodiment of the present invention.
Detailed description of the invention
For making the object of the embodiment of the present invention, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing, the embodiment of the present invention is described in further details.At this, schematic description and description of the present invention is for explaining 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 present invention provides a kind of underground flow tester, and this underground flow tester is installed on injects current through section.Fig. 1 is the structural representation of underground flow tester in the embodiment of the present invention.As shown in Figure 1, in the embodiment of the present invention, underground flow tester can comprise:
Housing 1, is provided with the pipeline 2 for injecting current warp in housing 1;
In pipeline 2, front end is provided with the pipe cyclone 3 by injecting water formation swirling fluid, the starting taper 4 that swirling fluid is led is provided with after pipe cyclone 3, be provided with the piezo-electric crystal probe 5 pulsatile impact signal of swirling fluid being converted to electric impulse signal after starting taper 4, piezo-electric crystal probe 5 has the circular arc receiving plane 6 receiving pulsatile impact signal.
Structure can be learnt as shown in Figure 1, the underground flow tester of the embodiment of the present invention, can realize the Real-Time Monitoring of downhole flow, and can reach lower power consumption levels when monitoring, such as, battery can be utilized to power.
During concrete enforcement, utilize pipe cyclone will inject water and form swirling fluid, namely can carry out rectification to injection water without using straight length, can reduce to test required duct length.Inject water after pipe cyclone, the whirlpool of certain rule can be produced.
During concrete enforcement, utilize starting taper to lead to swirling fluid, swirling fluid acts on the circular arc receiving plane of piezo-electric crystal probe after starting taper guiding.The circular arc receiving plane utilizing piezo-electric crystal to pop one's head in receives pulsatile impact signal, can improve the conversion efficiency that pulsatile impact signal is converted to electric impulse signal.
As shown in Figure 1, in one embodiment, in pipeline 2, after piezo-electric crystal probe 5, the extended cavity 7 making swirling fluid form the fluid of smooth flow can also be set.
During concrete enforcement, swirling fluid enters extended cavity after starting taper, piezo-electric crystal probe, forms the fluid of smooth flow, is conducive to reducing pulsation, improves signal to noise ratio, improve flow rate test precision.
In one embodiment, piezo-electric crystal probe can also be connected to that be positioned at underground flow tester outside, obtain flow parameter according to electric impulse signal flow sensor signal processing module.Flow sensor signal processing module can receive the electric impulse signal that piezo-electric crystal probe transmits, and obtains flow parameter according to electric impulse signal.During concrete enforcement, the size of fluid flow can be directly proportional to the umber of pulse produced.
Based on same inventive concept, additionally provide a kind of downhole flow method of testing in the embodiment of the present invention, as described in the following examples.The principle of dealing with problems due to downhole flow method of testing is similar to underground flow tester, and therefore the enforcement of downhole flow method of testing see the enforcement of underground flow tester, can repeat part and repeat no more.
Fig. 2 is the process chart of downhole flow method of testing in the embodiment of the present invention.As shown in Figure 2, in the embodiment of the present invention, downhole flow method of testing can comprise:
Step 201, injection current through section, pipe cyclone will inject water formation swirling fluid;
Swirling fluid is directed to piezo-electric crystal probe by step 202, starting taper;
The circular arc receiving plane of step 203, piezo-electric crystal probe receives the pulsatile impact signal of swirling fluid;
The pulsatile impact signal of swirling fluid is converted to electric impulse signal by step 204, piezo-electric crystal probe.
Flow process can be learnt as shown in Figure 2, and the downhole flow method of testing of the embodiment of the present invention, can realize the Real-Time Monitoring of downhole flow, and can reach lower power consumption levels when monitoring.
During concrete enforcement, utilize pipe cyclone will inject water and form swirling fluid, namely can carry out rectification to injection water without using straight length, can reduce to test required duct length; The circular arc receiving plane utilizing piezo-electric crystal to pop one's head in receives pulsatile impact signal, can improve the conversion efficiency that pulsatile impact signal is converted to electric impulse signal.
In one embodiment, swirling fluid, after flowing through piezo-electric crystal probe, can also form the fluid of smooth flow by extended cavity, is conducive to like this reducing pulsation, improves signal to noise ratio, improve flow rate test precision.
In one embodiment, after pulsatile impact signal is converted to electric impulse signal by piezo-electric crystal probe, electric impulse signal can also be sent to flow sensor signal processing module; Flow sensor signal processing module according to electric impulse signal, can obtain flow parameter.Wherein, the size of fluid flow can be directly proportional to the umber of pulse produced.
In sum, the underground flow tester of the embodiment of the present 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 pipe cyclone will inject water and form swirling fluid, namely can carry out rectification to injection water without using straight length, can reduce to test required duct length; The circular arc receiving plane utilizing piezo-electric crystal to pop one's head in receives pulsatile impact signal, can improve the conversion efficiency that pulsatile impact signal is converted to electric impulse signal.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; the protection domain be not intended to limit the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a underground flow tester, is characterized in that, described underground flow tester is installed on injects current through section, and described underground flow tester comprises:
Housing, is provided with the pipeline for injecting current warp in described housing;
In described pipeline, front end is provided with the pipe cyclone by injecting water formation swirling fluid, the starting taper that described swirling fluid is led is provided with after described pipe cyclone, be provided with the piezo-electric crystal probe pulsatile impact signal of described swirling fluid being converted to electric impulse signal after described starting taper, described piezo-electric crystal probe has the circular arc receiving plane receiving described pulsatile impact signal;
In described pipeline, after described piezo-electric crystal probe, be also provided with the extended cavity making described swirling fluid form the fluid of smooth flow.
2. underground flow tester as claimed in claim 1, is characterized in that, described piezo-electric crystal probe is also connected to that be positioned at described underground flow tester outside, obtain flow parameter according to described electric impulse signal flow sensor signal processing module.
3. a downhole flow method of testing, is characterized in that, comprising:
At injection current through section, pipe cyclone will inject water and form swirling fluid;
Described swirling fluid is directed to piezo-electric crystal probe by starting taper;
The circular arc receiving plane of described piezo-electric crystal probe receives the pulsatile impact signal of described swirling fluid;
Described pulsatile impact signal is converted to electric impulse signal by described piezo-electric crystal probe;
Described swirling fluid, after flowing through described piezo-electric crystal probe, also forms the fluid of smooth flow by extended cavity.
4. downhole flow method of testing as claimed in claim 3, is characterized in that, after described pulsatile impact signal is converted to electric impulse signal by described piezo-electric crystal probe, also described electric impulse signal is sent to flow sensor signal processing module;
Described flow sensor signal processing module, according to described electric impulse signal, obtains flow parameter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210370827.2A CN102900422B (en) | 2012-09-28 | 2012-09-28 | Underground flow tester and underground flow testing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210370827.2A CN102900422B (en) | 2012-09-28 | 2012-09-28 | Underground flow tester and underground flow testing method |
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| CN102900422A CN102900422A (en) | 2013-01-30 |
| CN102900422B true CN102900422B (en) | 2015-07-08 |
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| 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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| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7726396B2 (en) * | 2007-07-27 | 2010-06-01 | Schlumberger Technology Corporation | Field joint for a downhole tool |
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Patent Citations (7)
| 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 |
| 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 |
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| CN102900422A (en) | 2013-01-30 |
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