CN202914073U - Downhole flow tester - Google Patents
Downhole flow tester Download PDFInfo
- Publication number
- CN202914073U CN202914073U CN 201220506378 CN201220506378U CN202914073U CN 202914073 U CN202914073 U CN 202914073U CN 201220506378 CN201220506378 CN 201220506378 CN 201220506378 U CN201220506378 U CN 201220506378U CN 202914073 U CN202914073 U CN 202914073U
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- downhole flow
- piezo
- flow tester
- electric crystal
- crystal probe
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Abstract
The utility model discloses a downhole flow tester which is installed at an injection water flow section. The downhole flow tester comprises a casing, a pipe for injection water to flow is arranged in the casing, a spiral flow generator for enabling the injection water to form vortex fluid is arranged at the front end of the inner portion of the pipe, a guide cone for guiding the vortex fluid is arranged behind the spiral flow generator, a piezo-electric crystal probe for converting an impulse impact signal of the vortex fluid into an electric pulse signal is arranged behind the guide cone, and the piezo-electric crystal probe is provided with an arc-shaped receiving surface for receiving the impulse impact signal. The downhole flow tester can monitor downhole flow in real time, and can achieve low power consumption level during monitoring.
Description
Technical field
The utility model relates to the oil-field flooding technical field, relates in particular to the downhole flow tester.
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.
The utility model content
The utility model embodiment 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 one embodiment, 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 downhole flow tester of the utility model embodiment can be realized 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 among the utility model embodiment, 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 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.In the accompanying drawings:
Fig. 1 is the structural representation of downhole flow tester among the utility model embodiment;
Fig. 2 utilizes the downhole flow tester to carry out the process chart of downhole flow test among the utility model embodiment.
The specific embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment is clearer, below in conjunction with accompanying drawing the utility model embodiment is described in further details.At this, the utility model be used for is explained in illustrative examples of the present utility model and explanation thereof, but not as to restriction of the present utility model.
In order to realize the Real-Time Monitoring of downhole flow under lower power consumption levels, the utility model embodiment 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 among the utility model embodiment.As shown in Figure 1, the downhole flow tester can comprise among the utility model embodiment:
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 that by structure shown in Figure 1 the downhole flow tester of the utility model embodiment 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.
Fig. 2 utilizes the downhole flow tester to carry out the process chart of downhole flow test among the utility model embodiment.As shown in Figure 2, test process can comprise:
The circular arc receiving plane of step 203, piezo-electric crystal probe receives the pulsatile impact signal of whirlpool fluid;
Can be learnt by flow process shown in Figure 2, utilize the downhole flow tester of the utility model embodiment to carry out the downhole flow test, can realize the Real-Time Monitoring of downhole flow, and when monitoring, can reach lower power consumption levels.
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 utility model embodiment can be realized 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; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiment of the utility model; and be not used in and limit protection domain of the present utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (3)
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.
2. downhole flow tester as claimed in claim 1 is characterized in that, in described pipeline, also is provided with the extended cavity that makes described eddy-currents body form the fluid of smooth flow behind the described piezo-electric crystal probe.
3. 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220506378 CN202914073U (en) | 2012-09-28 | 2012-09-28 | Downhole flow tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220506378 CN202914073U (en) | 2012-09-28 | 2012-09-28 | Downhole flow tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202914073U true CN202914073U (en) | 2013-05-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220506378 Expired - Lifetime CN202914073U (en) | 2012-09-28 | 2012-09-28 | Downhole flow tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202914073U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900422A (en) * | 2012-09-28 | 2013-01-30 | 中国石油天然气股份有限公司 | Underground flow tester and underground flow testing method |
-
2012
- 2012-09-28 CN CN 201220506378 patent/CN202914073U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900422A (en) * | 2012-09-28 | 2013-01-30 | 中国石油天然气股份有限公司 | Underground flow tester and underground flow testing method |
| CN102900422B (en) * | 2012-09-28 | 2015-07-08 | 中国石油天然气股份有限公司 | Underground flow tester and underground flow testing method |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |