CN103225507A - Mechanical backup device for petroleum logging tool - Google Patents
Mechanical backup device for petroleum logging tool Download PDFInfo
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- CN103225507A CN103225507A CN2013101490605A CN201310149060A CN103225507A CN 103225507 A CN103225507 A CN 103225507A CN 2013101490605 A CN2013101490605 A CN 2013101490605A CN 201310149060 A CN201310149060 A CN 201310149060A CN 103225507 A CN103225507 A CN 103225507A
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- probe
- oil well
- well logging
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Abstract
The invention discloses a mechanical backup device for a petroleum logging tool, which comprises a cylindrical housing; a plurality of backup parts capable of being accommodated in the housing are uniformly arranged on the outer side of the housing in the circumferential direction; the backup parts improve the success rate of pricking probes into a sleeve wall effectively through adopting a mechanical backup way; the force of pricking the probe in a sleeve is large, and the action consistency is high; the three probes uniformly distributed on the circumference can be firmly pricked on the sleeve wall to form a stable measuring environment, the working efficiency is high, the reliability is strong, and the operation is simple; a driving force for driving the backup parts is provided, without adopting hydraulic expansion and contraction of a rubber part, so that the defects that the rubber is easy to age and the service life is short are overcame, so that the mechanical backup device can be repeatedly used; and the selectivity of the driving force is wide, and power can be provided for the mechanical backup device through hydraulic driving or motor driving.
Description
Technical field
The present invention relates to the electrical log device in the petroleum industry development field, refer to a kind of oil well logging instrument mechanical type pushing device particularly.
Background technology
The oil mass deposit on understanding stratum and the oil reservoir distribution situation on stratum are carried out every exploitation to the oil field and are played important directive function.Closely decades, people were by a series of research and development, oil reservoir distributes and the method for reserve status is divided into: electrical log, nuclear logging, acoustic logging etc. conventional verifying on principle, and most of electrical logs are measured is the resistivity of wellbore rock, and this resistivity that records generally speaking can reflect the type of rock.Resistivity well logging is different these characteristics of resistivity according to the various different rocks of occurring in nature, distinguishes a kind of logging method of rock property on the drill column.Because rock resistivity only could be measured out when giving the certain electric current of rock, so when carrying out resistivity logging, all be provided with supply line, sets up electric field by current electrode in well, carries out the measurement of potential difference then with measurement electrode.This potential difference has reflected the Electric Field Distribution characteristics, and the characteristic distributions of electric field is decided by the resistivity of ambient medium.
In the prior art, application number provides a kind of through casing resistivity logging instrument measurement electrode backup mechanism for 201220026194.9 Chinese utility model application file, comprise transverse hydro-cylinder, vertical symmetrical centre position of transverse hydro-cylinder is provided with fixed cover, fixed cover inside is provided with slip intermediate sleeve and lower slider intermediate sleeve, be provided with sliding sleeve and lower slider sleeve in last slip intermediate sleeve and the lower slider intermediate sleeve, the inside of last sliding sleeve and lower slider sleeve is provided with the measurement electrode probe, and the periphery of measurement electrode probe is provided with insulation sleeve on the probe.Be hinged with short connecting rod between the rod hinge connection cover of transverse hydro-cylinder pistons end and last sliding sleeve and the lower slider sleeve.
This backup mechanism mainly adopts oil cylinder piston to stretch to carry out backup, in the measurement electrode probe being penetrated wait to log well, but adopt rubber swelling to shrink in the oil cylinder, in oil well under the working environment of HTHP, that rubber easily takes place is aging, distortion, life-span are short, and the action stability that hydraulic pressure and spring match is bad, and it is wayward that probe penetrates strength to be logged well, the uniformity that action is carried out is not high, has influenced the accuracy of signals collecting.
Summary of the invention
The objective of the invention is to overcome existing oil well logging instrument backup arm and exist action to carry out the not high defective of uniformity, provide a kind of action to carry out more consistent, the more reliable oil well logging instrument mechanical type of signals collecting pushing device.
For achieving the above object, the oil well logging instrument mechanical type pushing device that the present invention is designed comprises columniform housing, and described hull outside can be accommodated in the interior backup portion of housing along circumferentially evenly being furnished with several,
Described backup portion comprises the insulation back up plate, distance rod, and be used to keep to insulate back up plate and housing center line first support arm and second support arm that are arranged in parallel, the two ends of described insulation back up plate are hinged with an end of the end of first support arm and second support arm respectively, the other end of the other end of described first support arm and second support arm is hinged on the housing respectively, offer the probe through hole in the described insulation back up plate, described insulation back up plate is provided with the probe base plate towards the one side of housing, one end of described probe base plate and distance rod is hinged, described probe base plate is provided with the boss that can slide in the probe through hole, described boss end face is provided with probe;
Being provided with in the described housing can axially movable drive link, be arranged with the thrust bush of tape base seat on the described drive link, be arranged with on the described thrust bush and the big spring of its pedestal butt, and sliding spring back-up ring, the pedestal end of described thrust bush and the other end of distance rod are hinged, the non-pedestal end of described thrust bush is provided with the locking nut with sliding spring back-up ring outside butt, the described sliding spring back-up ring outside also is fixedly connected with afterburning sleeve, sheathed being fixed on the drive link of described afterburning sleeve.
The present invention in use; the probe of backup portion is in the course of work of stretching out and withdrawing; can keep the rectilinear motion motion; can more stably penetrate sleeve pipe; probe protection behind the retraction is within the insulation back up plate; the effect of big spring is after preventing that probe from penetrating sleeve pipe, and the excessive applied thrust of distance rod causes the damage of backup portion.
Preferably, also be provided with several leads on the described probe base plate, be arranged with returning spring on the described lead; Offer the lead hole parallel with the probe through hole on the described insulation back up plate, described lead and lead hole are slidingly matched, and reset by returning spring.
Further, described lead is provided with two, is arranged symmetrically in probe base plate both sides; Described lead hole also is correspondingly provided with two, is arranged symmetrically in the probe through hole both sides on the insulation back up plate.
Preferably, described insulation back up plate top also is provided with roller.The top of roller protrudes in the top of described insulation back up plate, and during to the oil well inwall, roller is the contact inwall earlier in backup, then is only insulation back up plate contact inwall, like this insulation back up plate has been played protective effect.
Preferably, described surface of shell also is provided with the leaf spring that an end connects bottom the insulation back up plate, and the other end of described leaf spring is fixed on the housing by the leaf spring briquetting.Leaf spring can prevent the back up plate excess shrinkage that insulate, and avoids pushing device to damage.
Preferably, described sliding spring back-up ring is nested in the afterburning sleeve medial extremity annular groove, and by symmetrically arranged screw.
Preferably, the outboard end of described afterburning sleeve is fixed on the drive link by stop nut.
Preferably, the drive link in the pedestal end of the described thrust bush outside is provided with the protection spring, is used to prevent drive link excessive compression distance rod.When measuring, the situation of drive link excessive compression distance rod may take place, the protection spring is set further avoids probe impaired in actual oil well.
Further; be socketed with branch sleeve, block and small sleeve successively on the drive link in the pedestal end outside of described thrust bush; described small sleeve is fixed on the drive link by backstop semi-ring and little locking nut, and the two ends of described protection spring are connected to respectively on the ring platform of the end of block and small sleeve.
Preferably, described hull outside is along circumferentially evenly being furnished with three backup portions.
Beneficial effect of the present invention shows following several respects:
One, adopt mechanical backup mode to improve the success rate that probe penetrates casing wall effectively, probe bundle strength on sleeve pipe is big, and action consistency height, the firm bundle of equally distributed three probes energy is arranged on the circumference on casing wall, form stable measurement environment, high efficiency, good reliability, simple to operate;
Two, owing to do not adopt the rubber parts hydraulically extensible, overcome the defective that rubber easily wears out, application life is short, can use repeatedly;
Three, the driving force selectivity is wide, can adopt hydraulic-driven, motor drive mode is connected to it that power is provided.
Description of drawings
Fig. 1 is the part sectional structure schematic diagram of oil well logging instrument mechanical type pushing device of the present invention.
Fig. 2 is the structural representation of backup portion under receiving state among Fig. 1.
Fig. 3 is the structure for amplifying schematic diagram of backup portion among Fig. 1.
Fig. 4 is the structure for amplifying schematic diagram of afterburning sleeve and sliding spring back-up ring among Fig. 1.
Fig. 5 is that mechanical type pushing device shown in Figure 1 is assembled in the user mode figure on the oil well logging instrument.
Among the figure, leaf spring briquetting 1, leaf spring 2, backstop semi-ring 3, small sleeve 4, protection spring 5, block 6, first support arm 7, second support arm 8, roller 9, lead 10, returning spring 11, probe 12, insulation back up plate 13, probe base plate 14, distance rod 15, thrust bush 16, big spring 17, sliding spring back-up ring 18, locking nut 19, afterburning sleeve 20, probe through hole 21, boss 22, housing 23, drive link 24, back-up block 25, little locking nut 26, stop nut 27, branch sleeve 28, lead hole 29, screw 30.
The specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Shown in Fig. 1 ~ 4, oil well logging instrument mechanical type pushing device of the present invention comprises columniform housing 23, and housing 23 outsides are along circumferentially evenly being furnished with three backup portions that can be accommodated in the housing 23.
As shown in Figure 3, backup portion comprises insulation back up plate 13, distance rod 15, and be used to keep to insulate back up plate 13 and housing 23 center lines first support arm 7 and second support arm 8 that are arranged in parallel, the two ends of insulation back up plate 13 are hinged with an end of the end of first support arm 7 and second support arm 8 respectively, the other end of the other end of first support arm 7 and second support arm 8 is hinged on respectively on the housing 23, offer probe through hole 21 in the insulation back up plate 13, insulation back up plate 13 is provided with probe base plate 14 towards the one side of housing 23, probe base plate 14 is hinged with an end of distance rod 15, probe base plate 14 is provided with the boss 22 that can slide in probe through hole 21, boss 22 end faces are provided with probe 12.
One side with probe 12 homonymies on the probe base plate 14 also is provided with two leads 10, is arranged symmetrically in probe base plate 14 both sides; Be arranged with returning spring 11 on the lead 10, insulation back up plate 13 offers two lead holes 29 parallel with probe through hole 21, is arranged symmetrically in probe through hole 21 both sides on the back up plate 13 that insulate.Lead 10 is slidingly matched with lead hole 29, and resets by returning spring 11.Insulation back up plate 13 tops also are provided with roller 9.
The leaf spring 2 that housing 23 surfaces also are provided with an end and back up plate 13 bottoms of insulating connect, the other end of leaf spring 2 is fixed on the housing 23 by leaf spring briquetting 1.
Again as shown in Figure 1, 2, the position of center line of housing 23 is provided with can axially movable drive link 24, the two ends of drive link 24 respectively are arranged with a back-up block 25, and back-up block 25 and housing 23 inwall butts are in the position of center line of housing 23 all the time to keep drive link 24.Be arranged with the thrust bush 16 of tape base seat on the drive link 24, be arranged with on the thrust bush 16 and the big spring 17 of its pedestal butt, and sliding spring back-up ring 18, the pedestal end of thrust bush 16 and the other end of distance rod 15 are hinged, the non-pedestal end of thrust bush 16 is provided with the locking nut 19 with sliding spring back-up ring 18 outside butts, sliding spring back-up ring 18 outsides also are fixedly connected with afterburning sleeve 20, afterburning sleeve 20 is set on the drive link 24, and its outboard end is fixing by stop nut 27.
Be socketed with branch sleeve 28, block 6 and small sleeve 4 successively on the drive link 24 in the pedestal end outside of thrust bush 16; small sleeve 4 is fixed on the drive link 24 by backstop semi-ring 3 and little locking nut 26, and the two ends of protection spring 5 are connected to respectively on the ring platform of the end of block 6 and small sleeve 4.Protection spring 5 is used to prevent drive link 24 excessive compression distance rods 15; protection spring 5 may be long and influence its protection effect in practice, thus at the pedestal end arranged outside branch sleeve 28 of thrust bush 16 and block 6 to shorten, to adjust the length of required protection spring 5.
Again as shown in Figure 4, sliding spring back-up ring 18 is nested in the afterburning sleeve 20 medial extremity annular grooves, and fixes by symmetrically arranged screw 30.
As shown in Figure 5, when the present invention uses, the shared drive link 24 of a plurality of oil well logging instrument mechanical type pushing devices, series connection is assembled on the oil well logging instrument, this oil well logging instrument comprises drive part a, electrode part b and the measuring circuit part c that links to each other successively, and wherein electrode part b is made of the oil well logging instrument mechanical type pushing device of a plurality of series connection assemblings.
Introduce the course of work of having assembled oil well logging instrument of the present invention below.
When the present invention works from Fig. 2 state, earlier apply left power by drive link 24, promote afterburning sleeve 20, sliding spring back-up ring 18, big spring 17, thrust bush 16 then, to left movement, at this moment, distance rod 15 opens gradually and promotes probe base plate 14, make first support arm 7, second support arm 8 make circular motion around its pin joint, insulation back up plate 13 parallel moving, after roller 9, insulation back up plate 13 were attached on the casing wall, insulation back up plate 13 was in open configuration and moves as shown in Figure 1 and no longer.Continue afterburning by drive link 24; big spring 17 is subjected to the extruding of thrust bush 16; produce small decrement; the protection probe is not subjected to excessive compression; then; distance rod 15 promotes probe base plates 14, eject probe 12 penetrates in the sleeve pipe of oil well, and final backup portion finishes by contraction state to all processes that opens duty, and the movement locus of the hinged end of distance rod 15 and probe base plate 14 is an elliptic arc in this process.
After finishing well logging work, apply to the right power by drive link 24, drive link 24 drives its upper-part and moves right together, distance rod 15 drives probe base plate 14, insulation back up plate 13 moves downward, make first support arm 7, second support arm 8, insulation back up plate 13 on the housing 23 regain enclosure interior together, as shown in Figure 2.
Claims (10)
1. an oil well logging instrument mechanical type pushing device comprises columniform housing (23), and described housing (23) outside can be accommodated in the interior backup portion of housing (23) along circumferentially evenly being furnished with several, it is characterized in that:
Described backup portion comprises insulation back up plate (13), distance rod (15), and be used for first support arm (7) and second support arm (8) that keep insulation back up plate (13) and housing (23) center line to be arranged in parallel, the two ends of described insulation back up plate (13) are hinged with an end of end of first support arm (7) and second support arm (8) respectively, the other end of the other end of described first support arm (7) and second support arm (8) is hinged on respectively on the housing (23), offer probe through hole (21) in the described insulation back up plate (13), described insulation back up plate (13) is provided with probe base plate (14) towards the one side of housing (23), described probe base plate (14) is hinged with an end of distance rod (15), described probe base plate (14) is provided with the boss (22) that can slide in probe through hole (21), described boss (22) end face is provided with probe (12);
Being provided with in the described housing (23) can axially movable drive link (24), be arranged with the thrust bush (16) of tape base seat on the described drive link (24), be arranged with big spring (17) on the described thrust bush (16) with its pedestal butt, and sliding spring back-up ring (18), the other end of the pedestal end of described thrust bush (16) and distance rod (15) is hinged, the non-pedestal end of described thrust bush (16) is provided with the locking nut (19) with sliding spring back-up ring (18) outside butt, described sliding spring back-up ring (18) outside also is fixedly connected with afterburning sleeve (20), and described afterburning sleeve (20) is sheathed to be fixed on the drive link (24).
2. oil well logging instrument mechanical type pushing device according to claim 1 is characterized in that: also be provided with several leads (10) on the described probe base plate (14), be arranged with returning spring (11) on the described lead (10); Offer the lead hole (29) parallel with probe through hole (21) on the described insulation back up plate (13), described lead (10) is slidingly matched with lead hole (29), and resets by returning spring (11).
3. oil well logging instrument mechanical type pushing device according to claim 2 is characterized in that: described lead (10) is provided with two, is arranged symmetrically in probe base plate (14) both sides; Described lead hole (29) also is correspondingly provided with two, is arranged symmetrically in probe through hole (21) both sides on the insulation back up plate (13).
4. oil well logging instrument mechanical type pushing device according to claim 1 is characterized in that: described insulation back up plate (13) top is provided with roller (9).
5. oil well logging instrument mechanical type pushing device according to claim 1, it is characterized in that: described housing (23) surface also is provided with the leaf spring (2) that an end connects bottom insulation back up plate (13), the other end of described leaf spring (2) is fixed on the housing (23) by leaf spring briquetting (1).
6. oil well logging instrument mechanical type pushing device according to claim 1 is characterized in that: described sliding spring back-up ring (18) is nested in afterburning sleeve (20) the medial extremity annular groove, and fixing by symmetrically arranged screw (30).
7. oil well logging instrument mechanical type pushing device according to claim 1 is characterized in that: the outboard end of described afterburning sleeve (20) is fixed on the drive link (24) by stop nut (27).
8. according to each described oil well logging instrument mechanical type pushing device in the claim 1 ~ 7; it is characterized in that: the drive link (24) in the pedestal end outside of described thrust bush (16) is provided with protection spring (5), is used to prevent drive link (24) excessive compression distance rod (15).
9. oil well logging instrument mechanical type pushing device according to claim 8; it is characterized in that: be socketed with branch sleeve (28), block (6) and small sleeve (4) successively on the drive link (24) in the pedestal end outside of described thrust bush (16); described small sleeve (4) is fixed on the drive link (24) by backstop semi-ring (3) and little locking nut (26), and the two ends of described protection spring (5) are connected to respectively on the ring platform of the end of block (6) and small sleeve (4).
10. according to each described oil well logging instrument mechanical type pushing device in the claim 1 ~ 7, it is characterized in that: described housing (23) outside is along circumferentially evenly being furnished with three backup portions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310149060.5A CN103225507B (en) | 2013-04-26 | 2013-04-26 | Oil well logging instrument mechanical type pushing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310149060.5A CN103225507B (en) | 2013-04-26 | 2013-04-26 | Oil well logging instrument mechanical type pushing device |
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| CN103225507A true CN103225507A (en) | 2013-07-31 |
| CN103225507B CN103225507B (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310149060.5A Active CN103225507B (en) | 2013-04-26 | 2013-04-26 | Oil well logging instrument mechanical type pushing device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074509A (en) * | 2014-07-18 | 2014-10-01 | 北京中石曙光科技有限公司 | Multilayer pushing device and petroleum logger provided with same |
| CN104121008A (en) * | 2014-07-18 | 2014-10-29 | 北京中石曙光科技有限公司 | Sidewall contact device and oil logger with same |
| CN104329083A (en) * | 2014-11-05 | 2015-02-04 | 王少斌 | Pushing and setting device |
| CN108533252A (en) * | 2018-06-07 | 2018-09-14 | 北京捷威思特科技有限公司 | Bidirectional electric eccentric |
| CN113374469A (en) * | 2021-04-30 | 2021-09-10 | 青岛理工大学 | Device capable of measuring depth of inclined drilling hole |
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| CN201857954U (en) * | 2010-11-17 | 2011-06-08 | 大庆石油管理局 | Twelve-arm dual sidewall contact device used for micro-resistivity scanning, imaging and logging instrument |
| CN102141636A (en) * | 2010-12-17 | 2011-08-03 | 中国石油集团长城钻探工程有限公司 | Piston-type pushing electrode for through-casing resistivity |
| CN203248149U (en) * | 2013-04-26 | 2013-10-23 | 武汉海王机电工程技术公司 | Petroleum logging instrument mechanical sidewall contact device |
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Patent Citations (6)
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| US4495605A (en) * | 1980-07-15 | 1985-01-22 | Institut Francais Du Petrole | Method for determining the dip angle of geological formations traversed by a borehole |
| CN201292835Y (en) * | 2008-09-24 | 2009-08-19 | 中国电子科技集团公司第二十二研究所 | Single-driving and double-receiving four-arm well diameter, microsphere and micro-electrode eccentering device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074509A (en) * | 2014-07-18 | 2014-10-01 | 北京中石曙光科技有限公司 | Multilayer pushing device and petroleum logger provided with same |
| CN104121008A (en) * | 2014-07-18 | 2014-10-29 | 北京中石曙光科技有限公司 | Sidewall contact device and oil logger with same |
| CN104121008B (en) * | 2014-07-18 | 2017-01-11 | 北京中石曙光科技有限公司 | Sidewall contact device and oil logger with same |
| CN104329083A (en) * | 2014-11-05 | 2015-02-04 | 王少斌 | Pushing and setting device |
| CN108533252A (en) * | 2018-06-07 | 2018-09-14 | 北京捷威思特科技有限公司 | Bidirectional electric eccentric |
| CN113374469A (en) * | 2021-04-30 | 2021-09-10 | 青岛理工大学 | Device capable of measuring depth of inclined drilling hole |
| CN113374469B (en) * | 2021-04-30 | 2022-04-26 | 青岛理工大学 | Device capable of measuring depth of inclined drilling hole |
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| CN103225507B (en) | 2015-11-25 |
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Address after: 430000 No. 450, Zhongshan Road, Wuchang, Wuhan, Hubei Patentee after: WUHAN HAIWANG ELECTROMECHANICAL ENGINEERING TECHNOLOGY Co.,Ltd. Address before: 430064 No. 450, Wuchang, Wuhan District, Hubei, Zhongshan Road Patentee before: WUHAN HAIWANG MECHANICAL & ELECTRICAL ENGINEERING TECHNOLOGY Co.,Ltd. |
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