CN103397877A - Position finder - Google Patents
Position finder Download PDFInfo
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- CN103397877A CN103397877A CN2013103514869A CN201310351486A CN103397877A CN 103397877 A CN103397877 A CN 103397877A CN 2013103514869 A CN2013103514869 A CN 2013103514869A CN 201310351486 A CN201310351486 A CN 201310351486A CN 103397877 A CN103397877 A CN 103397877A
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- China
- Prior art keywords
- position indicator
- potentiometer
- oil pipe
- splicer
- eccentric block
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
A position finder comprises an eccentric block and a potentiostat, wherein the potentiostat is arranged in an oil pipe and the eccentric block is arranged at front of the potentiostat and is in rotation connection with the potentiostat. The invention provides a position finder which is arranged in the oil pipe. When the oil pipe is put down, the position finder can cause the change of potential difference in the potentiostat through the deflection of the eccentric block, so as to real timely detect out the deflection angle of the oil pipe; the measured data is sent to a display end on the ground, and as a result, an operator can adjust the down angle of the oil pipe in time so as to allow a connector seat on an external cylinder of a wet connector to be always above the cross section of the oil pipe.
Description
Technical field
The invention discloses a kind of position indicator, relate to the petroleum machinery field, in particular to a kind of cable flash position indicator of oil electric pump oil pipe.
Background technology
In recent years along with the exploitation in China's shallow-layer oil field totally, the moisture content of produced liquid in oil well is more and more higher, oilwell produced fluid amount is also increasing.For few well-digging, improve well yield, directional well, horizontal well become main well type in recent years.And electric submersible pump just in time adapts to that lower pump is dark, the oil recovery development trend of inclined shaft, large discharge capacity.Along with the electric submersible pump use is increasing, the installation question of electric submersible pump becomes increasingly conspicuous.
The wet joint of electric submersible pump need to be connected with the plinth of the oil pipe of transferring in advance shaft bottom, and the plinth of oil pipe is very fragile, in case run into the obstacles such as desilting, junk in docking operation, plinth is easily damaged.Occur for fear of above-mentioned fault, plinth must be in the top in the cross section of oil pipe.Therefore, before lower drain line, position indicator should first be set in oil pipe, location by position indicator, submersible electric pump cable, the down-hole plinth, the position of cable is real-time transmitted on ground,, by instrument display, rotate tubing string and make the interior plinth of oil pipe be positioned at all the time the top of oil pipe cross section again.
Summary of the invention
The object of the present invention is to provide a kind of position indicator, with the plinth that solves oil pipe, can not be in all the time problem above the oil pipe cross section in decentralization process.
A kind of position indicator is provided in an embodiment of the present invention, has comprised eccentric block and potentiometer, eccentric block is arranged on potentiometer the place ahead and with potentiometer, is rotationally connected.
Preferably, be provided with rotating shaft between described eccentric block and potentiometer, an end of rotating shaft rotates the circle centre position that is arranged on potentiometer, and the other end is connected with eccentric block, and eccentric block swings as the center of circle take rotating shaft.
Preferably, rotating shaft is connected with the plectrum in potentiometer, and plectrum moves left and right in potentiometer.
Preferably, the power supply of described potentiometer is 9V and 1.5V, the circuit of potentiometer is dynamic current stabilization testing circuit, comprise four integrated packages and peripheral cell, wherein IC1 is that the measuring circuit master controller is CPU, and IC2 is the amplifier integrated package, and IC3 is oscillator, IC4 is trap, and the physical values that detects offers digital display device by D/A converter.Described potentiometer can be that cable length and downhole temperature change and cause the index variation of measurement and automatically regulate its measuring voltage and make it the current measurement electric current of stabilizing circuit according to the condition of measuring, guarantee thus to measure relatively and absolute precision.
Preferably, described position indicator is arranged in the well casing string, enters the well casing string and is arranged in oil pipe; Enter the well casing string and comprise fisher, expansion coupling and the splicer that connects successively from top to bottom, expansion coupling and splicer are fixed by pin.
Preferably, be provided with insulated cavity and control lever in described fisher, control lever is arranged on the insulated cavity below, and position indicator is arranged in insulated cavity.
Preferably, described insulated cavity top is provided with the hydro-cushion capsule, is full of insulating oil in insulated cavity and hydro-cushion capsule.
Preferably, described splicer is provided with boss, locating slot, reed and wet joint, and control lever passes expansion coupling, inserts in splicer, and reed is arranged on the wall place of splicer, and with coordinate with control lever, locating slot and boss are arranged on the outer wall place of splicer.
Preferably, described tube inner wall is provided with step, dog screw and groove, and the oil pipe bottom is provided with plinth and cable; Dog screw and locating slot coordinate, and groove and reed coordinate, and wet joint and plinth coordinate, and step coordinates with boss.
Preferably, described eccentric block is the pendulum shape, and its swing arm is connected with rotating shaft.
A kind of position indicator of the above embodiment of the present invention, position indicator is arranged in oil pipe, in the process that oil pipe is transferred, the electrical potential difference that position indicator can drive in potentiometer by the deflection of eccentric block changes, thereby real-time measure the deflection angle that oil pipe occurs, and the transfer of data that will record, so that the staff can in time adjust the lower square degree of oil pipe, remains at the top of oil pipe cross section so that be arranged on the plinth of oil pipe bottom to the display end on earth's surface.
Description of drawings
The position indicator that Fig. 1 shows the embodiment of the present invention to be provided is fixed on into the schematic diagram in the well casing string;
Fig. 2 shows the local enlarged diagram of the splicer that the embodiment of the present invention provides;
Fig. 3 shows the structure for amplifying schematic diagram of the position indicator that the embodiment of the present invention provides;
Fig. 4 shows another structure for amplifying schematic diagram of the position indicator that the embodiment of the present invention provides;
Fig. 5 shows the position indicator that the embodiment of the present invention provides and enters the well casing string and is fixed on structural representation in oil pipe;
Fig. 6 shows the local enlarged diagram of the oil pipe that the embodiment of the present invention provides;
Fig. 7 shows the circuit diagram of the potentiometer that the embodiment of the present invention provides.
In figure:
110, potentiometer; 120, rotating shaft; 130, eccentric block; 210, fisher; 211, cavity; 212, hydro-cushion capsule; 213, control lever; 220, expansion coupling; 230, splicer; 231, pin; 232, boss; 233, locating slot; 234, wet joint; 300, oil pipe; 310, step; 320, groove; 330, dog screw; 340, plinth; 350 cables; 410, plectrum, 420, transducer; 430, VA table; 440, device for digit-displaying.
The specific embodiment
Also by reference to the accompanying drawings the present invention is described in further detail below by specific embodiment.
Embodiment 1, and as Fig. 1-shown in Figure 7, a kind of position indicator, comprise potentiometer 110 and eccentric block 130,, eccentric block 130 is connected with potentiometer 110 by rotating shaft 120.Eccentric block 130 is the pendulum shape, and its swing arm is connected with an end of rotating shaft 120, and the other end of rotating shaft rotates the circle centre position that is arranged on potentiometer 110, and eccentric block 130 swings as the center of circle take rotating shaft 120.Rotating shaft 120 is connected with the plectrum 410 in potentiometer 130, and plectrum moves left and right in potentiometer.The power supply of potentiometer is 9V and 1.5V, and the circuit of potentiometer is dynamic current stabilization testing circuit, comprises four integrated packages, transducer 420, VA table 430 and peripheral cell, wherein IC1 is that the measuring circuit master controller is CPU, IC2 is the amplifier integrated package, and IC3 is oscillator, and IC4 is trap.
Position indicator is arranged in the fisher 210 of well casing string.Be provided with cavity 211 in fisher 210, the cavity top is provided with hydro-cushion capsule 212, is full of insulating oil in cavity and hydro-cushion capsule 212.Position indicator is arranged in cavity 211, and the cavity bottom is provided with control lever 213.Fisher 210 is arranged with expansion coupling 220, and the expansion coupling below is provided with splicer 230, and expansion coupling 220 and splicer 230 are fixing by pin 231, and control lever passes expansion coupling 220 and inserts in splicer 230.
Be provided with step 310, groove 320 and dog screw 330 on oil pipe 300 inwalls, oil pipe 300 bottoms are provided with plinth 340 and cable 350.
Before oil pipe 300 is transferred to oil well, should first with entering the well casing string, put into oil pipe 300.Enter in the process that the well casing string is inserted into oil pipe 300, the locating slot 233 on splicer 230 outer walls coordinates with the dog screw 330 of oil pipe 300 inboards, to guarantee wet joint 234 and plinth 340, pegs graft; And the step 310 of oil pipe 300 coordinates with the boss 232 on splicer 230 outer walls, and splicer 230 cards are sitting in oil pipe 300.After this, more firmly press down fisher 210, fixedly expansion coupling 220 is cut off with the pin 231 of splicer 230, thereby promote fisher 210 and expansion coupling 220 continuation declines, expansion coupling inserts in splicer 230.Continue in the process that descends at fisher 210, control lever 213 is descending, thereby the reed that will be arranged on splicer 230 walls ejects, and reed inserts in the groove of oil pipe 300, with oil pipe, fixes.
Position indicator is fixed on oil pipe 300 interior after, oil pipe 300 is transferred along oil country tubular good, due to the plinth 340 that oil pipe 300 bottoms are set in case with foreign matter, clash into very easily and damage, so below oil pipe 300 in process, plinth 340 need to be in the top of oil pipe 300 cross sections all the time.But in decentralization process because there is obstruction in oil well, so oil pipe 300 be easy to deflect, in case oil pipe 300 excessive deflection, thereby plinth 340 is easy to and the obstruction damage that bumps.Therefore, in the process that oil pipe 300 is transferred, in case oil pipe deflects, corresponding deflection also can occur in the eccentric block 130 of position indicator, thereby the plectrum 410 of drive potentiometer 110 slides, thereby make in circuit, electrical potential difference occurs.The transducer physical values that institute's sense potential is poor offers device for digit-displaying 440 by D/A converter.The bottom surface staff, according to the reading on device for digit-displaying 440, adjusts accordingly to oil pipe 300, so that plinth 340 is in the top of oil pipe 300 cross sections all the time.
This potentiometer can be that cable length and downhole temperature change and cause the index variation of measurement and automatically regulate its measuring voltage and make it the current measurement electric current of stabilizing circuit according to the condition of measuring, guarantee thus to measure relatively and absolute precision.
Claims (10)
1. position indicator, it is characterized in that: comprise eccentric block and potentiometer, position indicator is arranged in oil pipe, and eccentric block is arranged on potentiometer the place ahead and with potentiometer, is rotationally connected.
2. a kind of position indicator according to claim 1 is characterized in that: be provided with rotating shaft between described eccentric block and potentiometer, an end of rotating shaft rotates the circle centre position that is arranged on potentiometer, and the other end is connected with eccentric block, and eccentric block swings as the center of circle take rotating shaft.
3. a kind of position indicator according to claim 2 is characterized in that: described rotating shaft is connected with the plectrum in potentiometer, and plectrum moves left and right in potentiometer.
4. a kind of position indicator according to claim 3, it is characterized in that: the power supply of described potentiometer is dual power supply, the circuit of potentiometer is dynamic current stabilization testing circuit, comprise four integrated packages and peripheral cell, wherein IC1 is the measuring circuit master controller, and IC2 is the amplifier integrated package, and IC3 is oscillator, IC4 is trap, and the physical values that detects offers digital display device by D/A converter.
5. according to claim 1-4 described a kind of position indicators of any one, it is characterized in that: described position indicator is arranged in the well casing string, enters the well casing string and is arranged in oil pipe; Enter the well casing string and comprise fisher, expansion coupling and the splicer that connects successively from top to bottom, expansion coupling and splicer are fixed by pin.
6. a kind of position indicator according to claim 5 is characterized in that: be provided with insulated cavity and control lever in described fisher, control lever is arranged on the insulated cavity below, and position indicator is arranged in insulated cavity.
7. a kind of position indicator according to claim 6, it is characterized in that: described insulated cavity top is provided with the hydro-cushion capsule, is full of insulating oil in insulated cavity and hydro-cushion capsule.
8. a kind of position indicator according to claim 7, it is characterized in that: described splicer is provided with boss, locating slot, reed and wet joint, control lever passes expansion coupling, inserts in splicer, reed is arranged on the wall place of splicer, and with coordinate with control lever, locating slot and boss are arranged on the outer wall place of splicer.
9. a kind of position indicator according to claim 8, it is characterized in that: described tube inner wall is provided with step, dog screw and groove, and the oil pipe bottom is provided with plinth and cable; Dog screw and locating slot coordinate, and groove and reed coordinate, and wet joint and plinth coordinate, and step coordinates with boss.
10. a kind of position indicator according to claim 1, it is characterized in that: described eccentric block is the pendulum shape, and its swing arm is connected with rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310351486.9A CN103397877B (en) | 2013-08-13 | 2013-08-13 | A kind of position finder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310351486.9A CN103397877B (en) | 2013-08-13 | 2013-08-13 | A kind of position finder |
Publications (2)
| Publication Number | Publication Date |
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| CN103397877A true CN103397877A (en) | 2013-11-20 |
| CN103397877B CN103397877B (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310351486.9A Active CN103397877B (en) | 2013-08-13 | 2013-08-13 | A kind of position finder |
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| CN (1) | CN103397877B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100613A (en) * | 2016-02-19 | 2017-08-29 | 中石化石油工程技术服务有限公司 | High-power underground rig carrier wave remote monitoring system |
| CN111578912A (en) * | 2019-02-15 | 2020-08-25 | 中石化石油工程技术服务有限公司 | High-side locator for power drilling tool of directional well and horizontal well |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3766658A (en) * | 1971-06-04 | 1973-10-23 | Sun Oil Co Pennsylvania | Elevation angle indicator |
| JPH1031077A (en) * | 1996-07-12 | 1998-02-03 | Tokyu Constr Co Ltd | Method of detecting crack and electrode for measuring potential |
| CN201174043Y (en) * | 2008-01-08 | 2008-12-31 | 浙江省电力试验研究院 | Remote monitoring terminal equipment of constant potential meter remote monitoring system |
| CN202153206U (en) * | 2011-06-10 | 2012-02-29 | 中国石油天然气股份有限公司 | Oil gas pipeline polarization potential monitoring devices |
| CN202543330U (en) * | 2012-01-18 | 2012-11-21 | 北京碧海舟腐蚀防护工业股份有限公司 | Potentiostat |
| CN102818762A (en) * | 2011-06-10 | 2012-12-12 | 中国石油天然气股份有限公司 | Oil gas pipeline polarization potential monitoring devices |
| CN202648708U (en) * | 2012-06-20 | 2013-01-02 | 昆山沃力达机械有限公司 | Flow and position indicator |
-
2013
- 2013-08-13 CN CN201310351486.9A patent/CN103397877B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3766658A (en) * | 1971-06-04 | 1973-10-23 | Sun Oil Co Pennsylvania | Elevation angle indicator |
| JPH1031077A (en) * | 1996-07-12 | 1998-02-03 | Tokyu Constr Co Ltd | Method of detecting crack and electrode for measuring potential |
| CN201174043Y (en) * | 2008-01-08 | 2008-12-31 | 浙江省电力试验研究院 | Remote monitoring terminal equipment of constant potential meter remote monitoring system |
| CN202153206U (en) * | 2011-06-10 | 2012-02-29 | 中国石油天然气股份有限公司 | Oil gas pipeline polarization potential monitoring devices |
| CN102818762A (en) * | 2011-06-10 | 2012-12-12 | 中国石油天然气股份有限公司 | Oil gas pipeline polarization potential monitoring devices |
| CN202543330U (en) * | 2012-01-18 | 2012-11-21 | 北京碧海舟腐蚀防护工业股份有限公司 | Potentiostat |
| CN202648708U (en) * | 2012-06-20 | 2013-01-02 | 昆山沃力达机械有限公司 | Flow and position indicator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100613A (en) * | 2016-02-19 | 2017-08-29 | 中石化石油工程技术服务有限公司 | High-power underground rig carrier wave remote monitoring system |
| CN111578912A (en) * | 2019-02-15 | 2020-08-25 | 中石化石油工程技术服务有限公司 | High-side locator for power drilling tool of directional well and horizontal well |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103397877B (en) | 2016-08-10 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20171016 Address after: Shenzhen Nanshan District City, Guangdong province 518000 Yu Dejia Park 5 B unit 501 Patentee after: Zhang Qiang Address before: 610501 No. 789 Baiyun Road, Xindu town, Xindu District, Sichuan, Chengdu Patentee before: Chengdu Sealand Energy Technology Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190419 Address after: 610501 No. 160 Huanghe Road, East Industrial District, Xindu District, Chengdu City, Sichuan Province Patentee after: Chengdu Sanneng Ruida Energy Technology Co., Ltd. Address before: 518000 Unit 501, 5 B Building, Yudejiayuan, Nanshan District, Shenzhen, Guangdong Province Patentee before: Zhang Qiang |