CN102926740B - Hydraulic sidewall contact device for through casing resistivity logger - Google Patents
Hydraulic sidewall contact device for through casing resistivity logger Download PDFInfo
- Publication number
- CN102926740B CN102926740B CN201210459162.2A CN201210459162A CN102926740B CN 102926740 B CN102926740 B CN 102926740B CN 201210459162 A CN201210459162 A CN 201210459162A CN 102926740 B CN102926740 B CN 102926740B
- Authority
- CN
- China
- Prior art keywords
- piston rod
- screw
- hydraulic pressure
- ball
- piston
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The invention discloses a hydraulic sidewall contact device for a through casing resistivity logger, which mainly solves the problem that the available hydraulic sidewall contact device for the through-casing resistivity logger outputs power radially so that the logger is large in external diameter and complicated in structure. The hydraulic sidewall contact device is characterized in that a ball screw (7) is connected with the front end of a ball screw input shaft (4); a strip-shaped groove is formed on a sidewall of a bush (21); a left limit switch and a right limit switch (5 and 9) are fixed at the left end and the right end of the groove; a ball screw output shaft (10) and a plunger pump (19) are connected with the front end of the ball screw (7) sequentially; a piston (14) is placed in a piston cylinder (15); a piston rod (12) is connected with the left end of the piston (14); and the piston rod (12) is matched with a gear (2) on a measuring electrode (23) by a rack (15). The hydraulic sidewall contact device for the through-casing resistivity logger axially outputs, and the logger is small in external diameter, simple in structure, high in reliability and convenient to maintain.
Description
Technical field
The present invention relates to oilfield, especially a kind of through casing resistivity logging instrument hydraulic pressure pushing device.
Background technology
In down-hole, resistivity tool is conventional instrument, the CHFR of through casing resistivity logging Yi Shi Schlumberger the most frequently used in the market and Russian geophysics prospecting company Э К О С-31-7, the hydraulic pressure pushing device of these two kinds of instruments is radial Power output, make instrument external diameter large, range of application is little, complex structural designs, maintenance is inconvenient, and reliability is unstable.Up to the present yet there are no document and the material object of the through casing resistivity logging instrument hydraulic pressure pushing device effectively solved the problem.
Summary of the invention
Large, the baroque deficiency of instrument external diameter is made in order to the hydraulic pressure pushing device power radial direction overcoming existing through casing resistivity logging instrument exports, the invention provides a kind of through casing resistivity logging instrument hydraulic pressure pushing device, this through casing resistivity logging instrument hydraulic pressure pushing device is that axial Power output, instrument external diameter are little, and structure is simple, reliability is high, be convenient to maintenance.
Technical scheme of the present invention is: a kind of through casing resistivity logging instrument hydraulic pressure pushing device, comprise direct current generator, piston rod, urceolus, the motor output shaft of described direct current generator front end connects ball-screw power shaft by yielding coupling, described ball-screw power shaft is supported by the lining being placed in outer barrel, described urceolus is connected by connecting cylinder with between piston rod, described ball-screw power shaft front end connects ball-screw, described ball-screw is fixed with positive stop, described lining sidewall has strip groove, the two ends, left and right of groove are fixed with left limit switch respectively, right limit switch, ball-screw front end is connected with leading screw output shaft, leading screw output shaft front end is connected with plunger displacement pump,
Described piston rod is built-in with piston, and piston rod is divided into hydraulic pressure cavity of resorption and hydraulic pressure epicoele by piston, and has the second hydraulic tube to be communicated with the right chamber of plunger displacement pump in hydraulic pressure cavity of resorption, has the first hydraulic tube to be communicated with the left chamber of plunger displacement pump in hydraulic pressure epicoele;
The left end of described piston is connected with piston rod, and piston rod sidewall is processed with tooth bar, and piston rod is matched with the gear in measurement electrode by tooth bar.
Described endoporus is fixed with feed screw nut, and ball-screw matches with feed screw nut.
The second described hydraulic tube is connected with differential manometer.
The present invention has following beneficial effect: owing to taking such scheme, direct current generator is adopted to do power source, be convenient to control, application plunger displacement pump promotes the forward and reverse motion of piston by hydraulic oil, and coordinating by piston rod and electrode, axial force is converted to radial load, electrode is pushed against on the borehole wall, reduce the external diameter of instrument, simple and compact for structure, easy to maintenance, good reliability.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the enlarged drawing at I place in Fig. 1;
Fig. 3 is schematic diagram of the present invention.
1-direct current generator in figure, 2-motor output shaft, 3-yielding coupling, 4-ball-screw power shaft, 5-left limit switch, 6-positive stop, 7-ball-screw, 8-feed screw nut, 9-right limit switch, 10-leading screw output shaft, 11-first hydraulic tube, 12-piston rod, 13-hydraulic pressure cavity of resorption, 14-piston, 15-piston rod, 16-hydraulic pressure epicoele, 17-second hydraulic tube, 18-difference gauge, 19-plunger displacement pump, 20-urceolus, 23-measurement electrode, 24-gear, 25-tooth bar.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described:
Shown in Fig. 1, Fig. 2, a kind of through casing resistivity logging instrument hydraulic pressure pushing device, comprise direct current generator 1, piston rod 15, urceolus 20, described urceolus 20 is connected by connecting cylinder with between piston rod 15, there is lining urceolus 20 inside, and direct current generator 1 is fixed on urceolus 20 inside.The motor output shaft 2 of described direct current generator 1 front end connects ball-screw power shaft 4 by yielding coupling 3, and described ball-screw power shaft 4 is by the bearings be placed on lining.Described ball-screw power shaft 4 front end connects ball-screw 7, and the middle part of described ball-screw 7 is fixed with positive stop 6, and ball-screw 7 front end is connected with leading screw output shaft 10, and leading screw output shaft 10 front end is connected with plunger displacement pump 19; Described lining endoporus is fixed with feed screw nut 8, and ball-screw 7 is supported by feed screw nut 8, and the two matches, and lining sidewall has strip groove, and the two ends, left and right of groove are fixed with left limit switch 5, right limit switch 9 respectively.
Described piston rod 15 is built-in with piston 14, piston rod 15 is divided into hydraulic pressure cavity of resorption 13 and hydraulic pressure epicoele 16 by piston 14, and in hydraulic pressure cavity of resorption 13, have the second hydraulic tube 17 to be communicated with the right chamber of plunger displacement pump 19, there is the first hydraulic tube 11 to be communicated with the left chamber of plunger displacement pump 19 in hydraulic pressure epicoele 16, and the second hydraulic tube 17 is connected with differential manometer 18.The left end of described piston 14 is connected with piston rod 12, piston rod 12 sidewall is processed with tooth bar 25, piston rod 12 is matched with the gear 24 in measurement electrode 23 by tooth bar 15, piston 14 moves left and right and piston rod 12 can be driven to move, drive measurement electrode 23 to rotate by tooth bar 15 with engaging of gear 24, thus electrode 23 end is pushed against on the borehole wall.On piston rod 12, can to connect three measurement electrode, 23, three measurement electrode 23 uniform for same circumference, is meshed with tooth bar 23 respectively by gear 24.
The piston rod 15 of this device and piston 14, piston rod 12 can be two covers, are connected, each piston rod 12 are all connected with three electrodes, then six electrodes all can be pushed against on the borehole wall when plunger displacement pump 19 moves respectively by different hydraulic tubes with plunger displacement pump 19.
Before work of the present invention, the mode vacuumized is adopted to fill hydraulic oil by plunger displacement pump 19, first hydraulic tube 11, second hydraulic tube 17, piston rod 15.Below in conjunction with accompanying drawing 3, the course of work of the present invention is described in detail.
This device carries out release measurement electrode 20 when working, first, to direct current generator 1 for-70V direct current, direct current generator 1 is by counterclockwise doing circular-rotation, the yielding coupling 3 be attached thereto is driven to rotate by motor output shaft 2, ball-screw power shaft 4 is transmitted motion to again by yielding coupling 3, this motion is through positive stop 6, ball-screw 7, feed screw nut 8 is changed, axially-movable is transformed to by the circular motion of radial direction, thrust is left passed out by leading screw output shaft 10, this thrust makes plunger displacement pump 19 start working, plunger displacement pump 19 utilizes the second hydraulic tube 17 to carry out power transmission, the hydraulic oil in the hydraulic pressure cavity of resorption 13 of piston rod 15 is made to produce thrust left, this thrust promotes piston 14, and then drive piston rod 12 to left movement, rotated by tooth bar 25 driven gear 24, thus electrode 23 is pushed against on the borehole wall.Plunger displacement pump 19 can promote six pistons simultaneously and moves simultaneously in the present invention, namely gives direct current generator 1 for after-70V direct current, produces six equivalent Power output sources simultaneously, promotes six groups of measurement electrode 23 simultaneously close to the measured borehole wall.Meanwhile, ground installation is observed the change of the force value that the change of feeding electric motors electric current and difference gauge 18 are uploaded through circuit, when feeding electric motors electric current becomes large suddenly, the force value of difference gauge 18 also increases thereupon, show that the measurement electrode be pushed has leaned against on the tested borehole wall, continue to power to direct current generator 1, when ground observation to the force value of difference gauge 18 reach required a certain fixed value time, determine that measurement electrode 23 obtains required pressure, show measurement electrode 23 and measured borehole wall rigid contact, at this moment direct current generator 1 power-off is given, by Measuring Time requirement keep measurement electrode this moment with the state of tested borehole wall rigid contact, the present invention completes the work releasing measurement electrode, through casing resistivity logging instrument then carries out lower step surveying work.If the present invention is when carrying out this work, ground observation to the force value of difference gauge 18 fail to increase gradually on request, then show that this device exists leakage problem, need to keep in repair this device.
Complete the surveying work of this point at through casing resistivity logging instrument after, when the present invention carries out the work of withdrawal measurement electrode, first, to direct current generator 1 for+70V direct current, direct current generator 1 does circular-rotation in the direction of the clock, the yielding coupling 3 be attached thereto is driven to rotate by motor output shaft 2, ball-screw power shaft 4 is transmitted motion to again by yielding coupling 3, this motion is through limit switch block 6, ball-screw 7, feed screw nut 8 is changed, axially-movable is transformed to by the circular motion of radial direction, pulling force is to the right passed out by leading screw output shaft 10, this pulling force makes plunger displacement pump 19 start working, plunger displacement pump 19 utilizes the first hydraulic tube 11 to carry out power transmission, the hydraulic oil in the hydraulic pressure epicoele 16 of piston rod 15 is made to produce thrust to the right, this thrust promotes piston 14, and then drive piston rod 12 to move right, produce an outputting power moved right, this power can pull the inner withdrawal from the measured borehole wall to this device of one group of measurement electrode 23.Produce six equivalent Power output sources for+70V direct current namely to direct current generator 1 simultaneously, pull that six groups of measurement electrode 23 are simultaneously inner from the measured borehole wall to this device to be regained.Meanwhile, ground installation is observed the change of the force value that the change of feeding electric motors electric current and difference gauge 18 are uploaded through circuit, and after positive stop 6 contacts with right limit switch 9, the supply current zero of direct current generator 1, measurement electrode is recovered to inside of the present invention.Meanwhile, the force value of difference gauge 18 also reduces gradually, then changes to a fixed value constant, shows that inside of the present invention does not exist leakage situation.So far, the present invention completes the task that the once release for measurement electrode and withdrawal provide power source.
Claims (3)
1. a through casing resistivity logging instrument hydraulic pressure pushing device, comprise direct current generator (1), piston rod (15), urceolus (20), the motor output shaft (2) of described direct current generator (1) front end connects ball-screw power shaft (4) by yielding coupling (3), described ball-screw power shaft (4) supports by being placed in the inner lining of urceolus (20), described urceolus (20) is connected by connecting cylinder with between piston rod (15), it is characterized in that:
Described ball-screw power shaft (4) front end connects ball-screw (7), described ball-screw (7) is fixed with positive stop (6), described lining sidewall has strip groove, the two ends, left and right of groove are fixed with left limit switch (5), right limit switch (9) respectively, ball-screw (7) front end is connected with leading screw output shaft (10), and leading screw output shaft (10) front end is connected with plunger displacement pump (19);
Described piston rod (15) is built-in with piston (14), piston rod (15) is divided into hydraulic pressure cavity of resorption (13) and hydraulic pressure epicoele (16) by piston (14), and in hydraulic pressure cavity of resorption (13), have the second hydraulic tube (17) to be communicated with the right chamber of plunger displacement pump (19), there is the first hydraulic tube (11) to be communicated with the left chamber of plunger displacement pump (19) in hydraulic pressure epicoele (16);
The left end of described piston (14) is connected with piston rod (12), piston rod (12) sidewall is processed with tooth bar (25), piston rod (12) is matched with the gear (24) in measurement electrode (23) by tooth bar (25).
2. through casing resistivity logging instrument hydraulic pressure pushing device according to claim 1, it is characterized in that: described lining endoporus is fixed with feed screw nut (8), ball-screw (7) matches with feed screw nut (8).
3. through casing resistivity logging instrument hydraulic pressure pushing device according to claim 2, is characterized in that: described the second hydraulic tube (17) is connected with differential manometer (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210459162.2A CN102926740B (en) | 2012-11-15 | 2012-11-15 | Hydraulic sidewall contact device for through casing resistivity logger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210459162.2A CN102926740B (en) | 2012-11-15 | 2012-11-15 | Hydraulic sidewall contact device for through casing resistivity logger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102926740A CN102926740A (en) | 2013-02-13 |
| CN102926740B true CN102926740B (en) | 2015-07-01 |
Family
ID=47641652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210459162.2A Active CN102926740B (en) | 2012-11-15 | 2012-11-15 | Hydraulic sidewall contact device for through casing resistivity logger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102926740B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821497B (en) * | 2014-03-04 | 2016-08-17 | 西安石油大学 | A kind of electrode telescoping ram |
| CN109555478A (en) * | 2018-11-14 | 2019-04-02 | 邹城兖矿泰德工贸有限公司 | Guide pipe |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1601997A (en) * | 1978-05-16 | 1981-11-04 | Nat Res Dev | Remote-controlled apparatus |
| US4432143A (en) * | 1982-03-22 | 1984-02-21 | Dresser Industries, Inc. | Well logging apparatus |
| CN2455932Y (en) * | 2000-11-08 | 2001-10-24 | 邹德富 | Program controlled valve for determining downhole water layer and oil layer |
| CN201148865Y (en) * | 2007-11-27 | 2008-11-12 | 中国石油天然气集团公司 | Ultrasonic imaging logging tool |
| CN101424183A (en) * | 2007-10-30 | 2009-05-06 | 杨志高 | Density graduation apparatus with automatic hydraulic sidewall contact device |
| CN201391311Y (en) * | 2009-04-17 | 2010-01-27 | 中国石油天然气集团公司 | Adaptive reducing backup device |
| CN201747356U (en) * | 2010-07-30 | 2011-02-16 | 西安威盛电子仪器有限公司 | Motor driven wheel type downhole creeper |
-
2012
- 2012-11-15 CN CN201210459162.2A patent/CN102926740B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1601997A (en) * | 1978-05-16 | 1981-11-04 | Nat Res Dev | Remote-controlled apparatus |
| US4432143A (en) * | 1982-03-22 | 1984-02-21 | Dresser Industries, Inc. | Well logging apparatus |
| CN2455932Y (en) * | 2000-11-08 | 2001-10-24 | 邹德富 | Program controlled valve for determining downhole water layer and oil layer |
| CN101424183A (en) * | 2007-10-30 | 2009-05-06 | 杨志高 | Density graduation apparatus with automatic hydraulic sidewall contact device |
| CN201148865Y (en) * | 2007-11-27 | 2008-11-12 | 中国石油天然气集团公司 | Ultrasonic imaging logging tool |
| CN201391311Y (en) * | 2009-04-17 | 2010-01-27 | 中国石油天然气集团公司 | Adaptive reducing backup device |
| CN201747356U (en) * | 2010-07-30 | 2011-02-16 | 西安威盛电子仪器有限公司 | Motor driven wheel type downhole creeper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102926740A (en) | 2013-02-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204188353U (en) | Packing element sealing property detection device | |
| CN108844732B (en) | Detection equipment for polyethylene ball valves | |
| CN101881610B (en) | Pipeline aperture deformer for trenchless pipeline laying | |
| CN102926740B (en) | Hydraulic sidewall contact device for through casing resistivity logger | |
| CN104749042B (en) | Suction controllable unsaturated soil static triaxial apparatus based on inner body variation precision measurement | |
| CN102837283A (en) | Numerical-control constant-torque electric spanner | |
| CN102384815A (en) | Pressure meter detecting device | |
| CN104308222A (en) | Electric drill capable of adjusting diameter of drill bit and use method of electric drill | |
| CN211904537U (en) | On-line detection device of multifunctional pressure measurement monitoring system | |
| CN111707469B (en) | Helicopter tail reducer control shaft force loading test device | |
| CN203114573U (en) | Scale type barometer air pump | |
| CN203534738U (en) | Borehole stressmeter with force-measuring direction thereof to be accurately controlled | |
| CN103900827B (en) | A kind of electricity promotes simulation oil brake | |
| CN103925945A (en) | Rotation type electromagnetic actuator performance testing device | |
| CN211174027U (en) | Underground thrust loading device | |
| CN201527324U (en) | sensor detector | |
| CN210016362U (en) | Take electronic jar of thrust or pulling force sensing | |
| CN203730239U (en) | Constant-pressure constant-speed pump | |
| CN203287154U (en) | Portable pressure gauge calibrator | |
| CN209802587U (en) | on-line detection device of pressure measurement monitoring system | |
| CN204877446U (en) | Oil well logging instrument piston pressure equaliser | |
| CN104457630A (en) | Mechanical hydraulic displacement measurement device | |
| CN110350716B (en) | Take electronic jar of thrust or pulling force sensing | |
| CN204372112U (en) | Speed reducer output shaft bearing unit | |
| CN109085020A (en) | A kind of underground water detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |