CN201924850U - Flow type underground leakage point detection device - Google Patents
Flow type underground leakage point detection device Download PDFInfo
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- CN201924850U CN201924850U CN2011200220094U CN201120022009U CN201924850U CN 201924850 U CN201924850 U CN 201924850U CN 2011200220094 U CN2011200220094 U CN 2011200220094U CN 201120022009 U CN201120022009 U CN 201120022009U CN 201924850 U CN201924850 U CN 201924850U
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Abstract
The utility model discloses a flow type underground leakage point detection device, which comprises a numerical control logging instrument with a display, a flowmeter and a cable, wherein a fluid cavity, an elastic induction cavity which is communicated with the fluid cavity and a sensing signal cavity are arranged in the shell of the flowmeter from down to up, an elastic element and an induction element are arranged in the elastic induction cavity, a sensor and an information processing transmitter which is connected with the sensor are arranged in the sensing signal cavity, a signal port which is positioned at the top of the shell of the flowmeter is connected with the signal processing transmitter, the lower end of a conduction rod extends into the fluid cavity and is provided with a stress element, the upper end of the conduction rod extends into the elastic induction cavity and penetrates through the elastic element to be connected with the induction element, a diversion port which is communicated with the fluid cavity is arranged on the shell wall and over the upper end of the stress element, and the two ends of the cable are respectively connected with the numerical control logging instrument and the signal port at the top part of the flowmeter. The flow type underground leakage point detection device can quickly determine the position of a leakage zone, or can quickly determine the position of the leakage zone and the leakage when a casing of a production well is broken or is perforated by corrosion.
Description
Technical field:
The utility model relates to a kind of checkout gear that detects the down-hole leak source, special relevant with flow-type down-hole leak source checkout gear.
Background technology:
Leakage is a kind of in various underground work processes such as drilling well, well cementation, test or well workover, various working solutions (comprising mud, cement paste, completion fluid and other liquid etc.) under the effect of pressure reduction, flow to a kind of down hole problem of stratum (the diafiltration filtered fluid is disregarded interior).The down hole problem that causes by it and other various down-holes serious accident of bringing out by it, very big to drilling well, completion engineering harm, it is the problem that domestic and international petroleum works circle are extremely paid close attention to always, but, make it to become domestic and international drilling well, completion engineering and fail the great technical barrier that solves fully so far owing to its reason complexity, restraining factors are a lot.
Leakage produces must possess three necessary conditions:
1, the stratum exists positive differential pressure, and the pressure of pit shaft working solution so just might be pressed into Lou all passages to working solution greater than the pressure (promptly in layer pore pressure) of liquid in formation pore, crack or the solution cavity.
2, exist leakage channel and the bigger space of being large enough to hold liquid in the stratum.
3, the opening size of leakage channel should be greater than the particle diameter of solid phase in the external working solution.
The leakage directly perceived, the easiest survey of generation, can by what people accepted be the loss of working solution, and have certain leak-off velocity.
Abroad just begin to develop the method that detects drop ply position in the sixties in 20th century, China has developed some leak detectors in the seventies in 20th century, and is applied in the production practices.These methods can roughly be classified as two classes: a class is an analysis by synthesis method, is that the basis is analyzed with the substantive test data, and this method not only wastes time and energy, and also often causes drop ply position to be judged because the measuring method error of certain parameter is excessive and goes wrong; The drop ply detector that the development of second type is special, the method that adopts instrument to survey drop ply position has promptly begun to be applied to the scene as far back as the fifties in last century, but mainly is the method for using some conventional geophysical prospecting equipment well loggings at that time, as temperature logging, electrical log etc.The sixties in last century, special-purpose drop ply detecting instrument abroad begins one's study.China's oil drilling well industry is later to this attention, is applied in the production practices but the system of Ministry of Geology and Mineral Resources has developed some small-bore leak detectors in the seventies in last century.To the eighties in last century, adopt the method for various Instrument measuring drop ply positions can adapt to on-the-spot needs substantially, there was not big progress in recent years.The method that adopts has well temperature method of testing, radioactive trace mensuration, acoustic logging method, sensor method etc. at present.
Above method respectively has pluses and minuses, but none can be used for high temperature, high pressure, slurry environment and directly measures.Mainly be to have solid phase particles in the slurry environment, and the mud toughness.As impeller, in high pressure viscosity environment, may can not rotate, solid phase particles is to problems such as tool wear are big, thereby influenced the correct judgement of that drop ply position.In addition, also useful drill string is gone into the well survey tool, and memory-type that chip the understands mode of leaking hunting is taken out in intact back to be measured, but this mode need remove drill string, wastes time and energy, thereby also is not subjected to on-the-spot welcome.
That leakage can occur in is shallow, in and in the deep layer, and in the stratum of all kinds of lithology, all may occur.And from the angle of drilling well, long bore hole, multiple pressure power series of strata, bad ground particularly bore when adjusting well, and it is more common and more serious that the problem of leakage seems.The generation of leakage not only expends drilling time, loss mud, and might cause a series of complex situations such as bit freezing, blowout, well slough, even causes well to be scrapped, and causes heavy economic losses.
Therefore, in the active prevention leakage, facing once the leakage that takes place can effective fast leak stopping be a key job, and accurately find leak source, then is one of precondition of carrying out effective blocking construction.
The utility model content:
The purpose of this utility model is that leakage takes place when a kind of drilling well is provided, and in the time of determining drop ply position or production well casing wear, corrosion failure fast, can determine the flow-type down-hole leak source checkout gear of drop ply position and wastage fast.
The purpose of this utility model is achieved like this:
The utility model flow-type down-hole leak source checkout gear, comprise the numerical control logging instrument of being with display, it is characterized in that described device also comprises flow meter, cable, housing in the flow meter has fluid cavity from bottom to top, the elasticity induction cavity that communicates with fluid cavity by conduction pathway, the transducing signal chamber, in the elasticity induction cavity flexible member is housed, induction pieces, heat transfer agent is equipped with sensor in the chamber, the information processing transmitter that links to each other with sensor, the signaling interface that is positioned at case top links to each other with the information processing transmitter, the conductive bar that is arranged in conduction pathway stretches into and on the lower end of fluid cavity force-summing element is housed and the elasticity induction cavity is stretched in the upper end and pass flexible member is connected with induction pieces, the relative force-summing element upper end of housing wall has the flow-guiding mouth that communicates with fluid cavity, the two ends of cable are connected with flow meter top signal interface with the numerical control logging instrument respectively, when flow meter leaves standstill in well, leak source is as following at it, and then borehole fluid has downward flowing.This moment, fluid can produce motion by flow-guiding mouth, force-summing element is produced a respective action power (momentum), make it to produce microdisplacement downwards, also trace is mobile thereupon for the induction pieces that links with it, sensor in the heat transfer agent chamber can produce corresponding electric signal, and its signal strength signal intensity is directly proportional with fluid velocity, and the signal of telecommunication is after circuit information is handled the transmitter processing, export signal to signaling interface, wear the numerical control measuring instrument of display again by cable with reaching.
Above-mentioned signal is handled in the transmitter the A/D converter that is communicated with sensor, the single-chip microcomputer U that is communicated with A/D converter, sensor converts flow signal to the 1-5V voltage signal, after passing to A/D converter and converting numeral to and send into the single-chip microcomputer calculation process, show by the display in the numerical control measuring instrument.
Above-mentioned A/D converter model is 7109, and single-chip microcomputer U model is 89C51, also can adopt the converter or the single-chip microcomputer of other model.
Above-mentioned housing upper and lower part is equipped with centralizer, following centralizer respectively, and centralizer dependable flow meter is placed in the middle in well, thereby guarantees that survey data is true and reliable, and the impaired effect of the flow meter of maintenance is also arranged in addition.
Above-mentioned following centralizer bottom is connected with weighted lever, and weighted lever is used for increasing suspending weight, guarantees that instrument can be down to desired depth in mud.
In the utility model when work,, flow meter is transferred to certain position in the well by cable, measures flow after the energising, and the signal that the down-hole records turns back to ground numerical control logging instrument by cable, shows and explains.More than leak source, can read certain flow value, transfer again, when flow value can not be read in certain position, then leak source in the end one can read flow value and not have between two measuring points of flow show value.By approximatioss, find the drop ply of engineering demands.
Above-mentioned numerical control logging instrument can adopt the SGX3A type numerical control logging instrument of Jiang-Han Area oil instrument plant.(1), adjustable dc source, 0--300V, electric current 0--1A; (2), require the tape pulse road, perhaps can articulate the instrument of burst transmissions, 9999 meters of maximum depth measurements, depth error is less than 1 meter.The numerical control logging instrument can be placed on the logging truck, can utilize the hydraulic wireline winch on the logging truck.Being contained on the hydraulic wireline winch of cable afterwards is connected with the numerical control logging instrument on it.
The utlity model has following advantage:
1. can operation in water, oil and water-base mud.
2. adopt the cable mode of going into the well, one-point measurement, simple and efficient.
3. signal directly returns ground by cable, understands immediately, thereby determines leak source fast, or when production well casing wear, corrosion failure, can determine drop ply position and wastage fast.
4. can make full use of the technology and equipment of existing well logging, measurement of discharge, easy to use, simple to operate.
Description of drawings:
Fig. 1 is the utility model work schematic diagram.
Fig. 2 is the flowmeter structure schematic diagram.
Fig. 3 is information processing transmitter circuit figure.
Fig. 4 is the drawing of site of centralizer on flow meter.
The specific embodiment:
Referring to Fig. 1～Fig. 4, present embodiment flow-type down-hole leak source checkout gear comprises the numerical control logging instrument 1 of being with display, flow meter 2, cable 3.Elasticity induction cavity 7, transducing signal chamber 8 that housing 4 in the flow meter has fluid cavity 5 from bottom to top, communicates with fluid cavity by conduction pathway 6.Flexible member 9, induction pieces 10 are housed in the elasticity induction cavity.The information processing transmitter 12 that sensor 11 is housed in the heat transfer agent chamber, links to each other with sensor, the signaling interface 13 that is positioned at case top links to each other with the information processing transmitter.The conductive bar 14 that is arranged in conduction pathway stretches into and on the lower end of fluid cavity force-summing element 15 is housed and the elasticity induction cavity is stretched in the upper end and pass flexible member is connected with induction pieces.The relative force-summing element upper end of housing wall has the oblique flow-guiding mouth 16 that communicates with fluid cavity.The two ends of cable are connected with flow meter top signal interface with the numerical control logging instrument respectively.
Referring to Fig. 3, it is that 7109 A/D converter, the model that is communicated with A/D converter are the single-chip microcomputer U of 89C51 that signal processing transmitter has the model that is communicated with sensor.
Referring to Fig. 4, the housing upper and lower part is equipped with centralizer 17, following centralizer 18 respectively.Following centralizer bottom is connected with weighted lever 19.
Claims (5)
1. flow-type down-hole leak source checkout gear, comprise the numerical control logging instrument of being with display, it is characterized in that described device also comprises flow meter, cable, housing in the flow meter has fluid cavity from bottom to top, the elasticity induction cavity that communicates with fluid cavity by conduction pathway, the transducing signal chamber, in the elasticity induction cavity flexible member is housed, induction pieces, heat transfer agent is equipped with sensor in the chamber, the information processing transmitter that links to each other with sensor, the signaling interface that is positioned at case top links to each other with the information processing transmitter, the conductive bar that is arranged in conduction pathway stretches into and on the lower end of fluid cavity force-summing element is housed and the elasticity induction cavity is stretched in the upper end and pass flexible member is connected with induction pieces, the relative force-summing element upper end of housing wall has the flow-guiding mouth that communicates with fluid cavity, and the two ends of cable are connected with flow meter top signal interface with the numerical control logging instrument respectively.
2. flow-type as claimed in claim 1 down-hole leak source checkout gear is characterized in that in the signal processing transmitter A/D converter that is communicated with sensor, the single-chip microcomputer U that is communicated with A/D converter being arranged.
3. flow-type as claimed in claim 2 down-hole leak source checkout gear is characterized in that the A/D converter model is 7109, and single-chip microcomputer U model is 89C51.
4. as the described flow-type of one of claim 1～3 down-hole leak source checkout gear, it is characterized in that the housing upper and lower part is equipped with centralizer, centralizer down respectively.
5. flow-type as claimed in claim 4 down-hole leak source checkout gear is characterized in that the centralizer bottom is connected with weighted lever down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200220094U CN201924850U (en) | 2011-01-24 | 2011-01-24 | Flow type underground leakage point detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200220094U CN201924850U (en) | 2011-01-24 | 2011-01-24 | Flow type underground leakage point detection device |
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| CN201924850U true CN201924850U (en) | 2011-08-10 |
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| CN2011200220094U Expired - Lifetime CN201924850U (en) | 2011-01-24 | 2011-01-24 | Flow type underground leakage point detection device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322238A (en) * | 2011-08-29 | 2012-01-18 | 中国石油化工股份有限公司 | Oil tube testing plugging process and tube testing plugging device |
| CN104453748A (en) * | 2014-10-24 | 2015-03-25 | 中国石油大学(华东) | Method for detecting position of perforation through jet flow field changes and cleaning perforation |
| CN105672996A (en) * | 2014-11-21 | 2016-06-15 | 中石化胜利石油工程有限公司钻井工艺研究院 | Comprehensive recognition system for loss of drilling fluid |
| CN105781519A (en) * | 2014-12-22 | 2016-07-20 | 中石化胜利石油工程有限公司钻井工艺研究院 | Drilling fluid leakage determining instrument |
| CN108643889A (en) * | 2018-06-08 | 2018-10-12 | 新疆格瑞迪斯石油技术股份有限公司 | overflow leakage monitoring method and monitoring system |
-
2011
- 2011-01-24 CN CN2011200220094U patent/CN201924850U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322238A (en) * | 2011-08-29 | 2012-01-18 | 中国石油化工股份有限公司 | Oil tube testing plugging process and tube testing plugging device |
| CN104453748A (en) * | 2014-10-24 | 2015-03-25 | 中国石油大学(华东) | Method for detecting position of perforation through jet flow field changes and cleaning perforation |
| CN104453748B (en) * | 2014-10-24 | 2017-02-15 | 中国石油大学(华东) | Method for detecting position of perforation through jet flow field changes and cleaning perforation |
| CN106545328A (en) * | 2014-10-24 | 2017-03-29 | 中国石油大学(华东) | A kind of detection preforation tunnel position the method for cleaning eyelet |
| CN105672996A (en) * | 2014-11-21 | 2016-06-15 | 中石化胜利石油工程有限公司钻井工艺研究院 | Comprehensive recognition system for loss of drilling fluid |
| CN105781519A (en) * | 2014-12-22 | 2016-07-20 | 中石化胜利石油工程有限公司钻井工艺研究院 | Drilling fluid leakage determining instrument |
| CN105781519B (en) * | 2014-12-22 | 2023-05-02 | 中石化胜利石油工程有限公司钻井工艺研究院 | Drilling fluid leakage judging instrument |
| CN108643889A (en) * | 2018-06-08 | 2018-10-12 | 新疆格瑞迪斯石油技术股份有限公司 | overflow leakage monitoring method and monitoring system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| C56 | Change in the name or address of the patentee | ||
| CB03 | Change of inventor or designer information |
Inventor after: He Zhigang Inventor after: Xu Kaifang Inventor before: He Zhigang Inventor before: Lao Chunyu Inventor before: Xu Kaifang |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: HE ZHIGANG LAO CHUNYU XU KAIFANG TO: HE ZHIGANG XU KAIFANG |
|
| CP02 | Change in the address of a patent holder |
Address after: Two Beijing 100102 Chaoyang District city in Wangjing Lize Park No. 203 Petrova building 7 storey block A room 1707 Patentee after: Beijing Grand Oilfield Technology Co., Ltd. Address before: 100102 Beijing 2608 Chaoyang District building, Room 601, Wangjing garden, Beijing, China Patentee before: Beijing Grand Oilfield Technology Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180619 Address after: 841000 the Xinjiang Uygur Autonomous Region Bayinguoleng Mongolia Autonomous Prefecture Korla economic and Technological Development Zone Development Avenue building A block 1609 Patentee after: XINJIANG GRAND OILFIELD TECHNOLOGY CO., LTD. Address before: 100102 1707, 7 floor, block A, Luo wa building, 203 District, two Ze District, Wangjing, Chaoyang District, Beijing. Patentee before: Beijing Grand Oilfield Technology Co., Ltd. |
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| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Xu Yang Document name: Notification of Passing Examination on Formalities |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110810 |