CN105986804B - Shell dismounting device of petroleum logging instrument - Google Patents
Shell dismounting device of petroleum logging instrument Download PDFInfo
- Publication number
- CN105986804B CN105986804B CN201510048328.5A CN201510048328A CN105986804B CN 105986804 B CN105986804 B CN 105986804B CN 201510048328 A CN201510048328 A CN 201510048328A CN 105986804 B CN105986804 B CN 105986804B
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- Prior art keywords
- sleeve
- cylinder
- fit
- threaded
- logging instrument
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- 239000003208 petroleum Substances 0.000 title claims description 17
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000007769 metal material Substances 0.000 claims description 2
- 239000003129 oil well Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Abstract
The invention discloses a casing dismounting device of an oil logging instrument, which comprises a hydraulic drive, a gripping device and a pad cylinder (3), wherein: the hydraulic drive comprises a hydraulic cylinder (1) consisting of a cylinder sleeve, a plunger and a control valve (5), and a power push rod (7) connected to the output end of the plunger of the hydraulic cylinder (1), a force application rod (8) connected to the input end of the plunger of the hydraulic cylinder (1), and a threaded sleeve (6) extending from the lower part of the cylinder sleeve; the gripping device comprises a thread connecting sleeve (9), a plurality of gripping arms (10) and a locking sleeve (4); the pad cylinder (3) is of a bidirectional U-shaped structure, the upper non-U-shaped opening is in plug-in fit with the power push rod (7), and threads (18) are arranged in the lower U-shaped opening and are in threaded connection fit with a connector of a logging instrument; the hydraulic drive and the gripping device are in threaded connection and fit through a threaded sleeve (6) and a threaded connecting sleeve (9); the pad cylinder (3) and the lower end of the grasping arm (10) form plug-in fit. The device comprises: the oil well logging instrument has the advantages of simple structure, convenient use and low cost, and can safely disassemble the shell of the instrument under the condition of ensuring the safety of the internal devices of the oil well logging instrument.
Description
Technical Field
The invention relates to a dismounting device for a petroleum logging instrument shell, which belongs to the field of logging instrument maintenance devices.
Background
In the application process of the petroleum logging instrument, the casing of the petroleum logging instrument is difficult to detach due to the high temperature, high pressure and corrosion action under the well, and the casing of the petroleum logging instrument can be stuck and buckled at the joint by too strong external force during the detachment, so that the damage of the detachment is extremely easy to cause. More seriously, under the action of strong external force and severe vibration, precise devices in the petroleum logging instrument can be damaged, and huge economic loss is caused.
Disclosure of Invention
The invention aims to solve the problems in the prior art, avoid the occurrence of the accidents, and provide the petroleum logging instrument shell dismounting device which has the advantages of simple structure, low cost, simplicity and effectiveness in operation and capability of guaranteeing the safety of logging instruments.
The technical proposal is as follows:
a casing removal device for a petroleum logging instrument comprising a hydraulic drive section, a grip device section and a pad cylinder 3, wherein: the hydraulic driving part comprises a hydraulic cylinder 1 formed by a cylinder sleeve, a plunger and a control valve 5, and a power push rod 7 connected to the output end of the plunger of the hydraulic cylinder 1, a stress application rod 8 connected to the input end of the plunger of the hydraulic cylinder 1, and a threaded sleeve 6 extending from the lower part of the cylinder sleeve; the gripping device part comprises a threaded connecting sleeve 9, a plurality of gripping arms 10 and a locking sleeve 4, wherein the upper end of the gripping arms 10 is hinged to the periphery of the threaded connecting sleeve 9, the lower ends of the gripping arms 10 are in plug-in fit with grooves 15 formed in the inner periphery of the locking sleeve 4, and locking bolts 17 are radially arranged at the grooves 15 formed in the inner periphery of the locking sleeve 4; the pad cylinder 3 is of a bidirectional U-shaped structure, the upper U-shaped opening is in plug-in fit with the power push rod 7, threads 18 are arranged in the lower U-shaped opening, and the upper U-shaped opening is in threaded connection fit with a connector of a logging instrument; the hydraulic driving part is in threaded connection and matched with the gripping device part through a threaded sleeve 6 and a threaded connecting sleeve 9; the cushion cylinder 3 and
the lower ends of the gripping arms 10 form a plug-in fit.
The scheme further comprises the following steps:
the number of the gripping arms 10 is three, and the gripping arms are uniformly distributed on the periphery of the threaded connecting sleeve 9 through clamping grooves, connecting bolts and the threaded connecting sleeve 9
A hinge; three grooves are uniformly distributed in the corresponding locking sleeve 4 and are matched with the lower ends of the grasping arms 10.
The stress application rod 8 is of a combined structure in plug-in fit with the stress application handle 19.
The pad cylinder 3 is made of copper or a metal material with softer material.
The invention relates to a petroleum logging instrument shell dismounting device, which adopts a hydraulic drive, a gripping device and a locking sleeve combined structure, and comprises the following components: the oil well logging instrument has the advantages of simple structure, convenient use and low cost, and can safely disassemble the shell of the instrument under the condition of ensuring the safety of the internal devices of the oil well logging instrument.
Drawings
FIG. 1 is a schematic longitudinal cross-sectional view of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic view of a portion of a grip device;
FIG. 3 is a top view of a threaded connection sleeve portion;
FIG. 4 is a top view of the locking collar portion;
FIG. 5 is an enlarged view of the cushion cylinder;
fig. 6 is a schematic view of a hydraulic drive section.
Detailed Description
A casing removing device of a petroleum logging instrument comprises a hydraulic driving part, a gripping device part and a pad cylinder 3.
Referring to fig. 1 and 6, the hydraulic driving part (the principle of which is similar to a jack) is a cylinder structure, a plunger (power input end) at the upper part of the hydraulic cylinder 1 is connected with a force applying rod 8, and the force applying rod 8 is in plug-in fit with a force applying handle 19 so as to apply larger force. The plunger (power output end) at the lower part of the hydraulic cylinder 1 is connected with an lengthened power push rod 7, and hydraulic pressure acts on the cushion cylinder 3 through the power push rod; the cylinder body part of the hydraulic cylinder 1 is downwards extended with a threaded sleeve 6 and sleeved outside a power push rod 7. A direction control valve 5 is arranged at the lower part of the hydraulic cavity.
Referring to fig. 2-4, the upper part of the gripping device is a screw thread connecting sleeve 9, a U-shaped groove opening 12 is arranged on the periphery, and openings 13 which can allow bolts 11 to pass through are formed in the corresponding positions of the two corresponding surfaces of the U-shaped groove opening; the upper end of the grasping arm 10 is provided with a circular opening 14 which can enable the bolt 11 to pass through, the upper end of the grasping arm is inserted into the U-shaped notch 12, and the bolt 11 is hinged with the upper part of the grasping arm; the lock sleeve 4 is of a hollow cylindrical ring body structure, a square groove 15 is formed in the inner wall of the cylindrical ring body, a threaded hole 16 for allowing a locking bolt 17 to pass through is radially formed in the groove, the lower end of the grasping arm 10 is arranged in the groove 15 of the lock sleeve 4, and the bolt 17 acts on the grasping arm 10 through the threaded hole 16 above the groove 15 to enable the grasping arm to grasp the petroleum logging instrument shell tightly.
Referring to fig. 5, the pad cylinder 3 is in a bidirectional U-shaped structure, the upper U-shaped opening is in plug-in fit with the power push rod 7, and threads 18 are arranged in the lower U-shaped opening and are in threaded connection fit with the connector of the detached logging instrument.
With reference to fig. 1, the hydraulic driving part and the gripping device part are in threaded connection and fit through a threaded sleeve 6 and a threaded connecting sleeve 9; the pad cylinder 3 is in plug-in fit with the lower end of the grasping arm 10.
The working principle is that firstly, the pad cylinder 3 is connected with a screwed joint on a disassembled petroleum logging instrument; the grasping arm 10 is connected with the locking sleeve 4, namely the lower end of the grasping arm 10 is accurately placed in a groove 15 of the locking sleeve, and the grasping arm 10 is propped against the surface of the shell of the petroleum logging instrument by a bolt 17; the threaded sleeve 6 is connected with the threaded connecting sleeve 9, and the bottom end of the power push rod 7 is tightly combined with the U-shaped groove of the cushion cylinder 3; the directional control valve 5 on the hydraulic cylinder 1 is set to the pressurized position. Finally, the casing of the logging instrument and the main body are moved by operating the stressing rod 19 to reciprocate, and the relative positions of the threaded sleeve 6 and the threaded connecting sleeve 9 are adjusted in the process until the casing of the petroleum logging instrument and the main body are completely separated, so that the disassembly is completed.
Claims (2)
1. A casing removal device for a petroleum logging instrument, characterized by comprising a hydraulic drive section, a grip device section and a pad cylinder (3), wherein: the hydraulic driving part comprises a hydraulic cylinder (1) consisting of a cylinder sleeve, a plunger and a control valve (5), and a power push rod (7) connected to the output end of the plunger of the hydraulic cylinder (1), a force application rod (8) connected to the input end of the plunger of the hydraulic cylinder (1), and a threaded sleeve (6) extending from the lower part of the cylinder sleeve; the gripping device part comprises a threaded connecting sleeve (9), a plurality of gripping arms (10) and a locking sleeve (4), wherein the upper ends of the gripping arms (10) are hinged to the periphery of the threaded connecting sleeve (9), the lower ends of the gripping arms (10) are in plug-in fit with grooves (15) formed in the inner periphery of the locking sleeve (4), and locking bolts (17) are radially arranged at the grooves (15) formed in the inner periphery of the locking sleeve (4); the pad cylinder (3) is of a bidirectional U-shaped structure, the upper U-shaped opening is in plug-in fit with the power push rod (7), and threads (18) are arranged in the lower U-shaped opening and are in threaded connection fit with the connector of the logging instrument; the hydraulic driving part is in threaded connection and coordination with the gripping device part through a threaded sleeve (6) and a threaded connecting sleeve (9); the pad cylinder (3) and the lower end of the grasping arm (10) form plug-in fit;
the number of the gripping arms (10) is three, and the gripping arms are hinged with the thread connecting sleeve (9) through clamping grooves and connecting bolts uniformly distributed on the periphery of the thread connecting sleeve (9); three grooves are uniformly distributed in the corresponding locking sleeve (4) and are matched with the lower end of the grasping arm (10);
the pad cylinder (3) is made of copper or a metal material with softer material.
2. The casing removal apparatus for a petroleum logging tool of claim 1, wherein: the stressing rod (8) is of a combined structure which is in plug-in fit with the stressing handle (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510048328.5A CN105986804B (en) | 2015-01-30 | 2015-01-30 | Shell dismounting device of petroleum logging instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510048328.5A CN105986804B (en) | 2015-01-30 | 2015-01-30 | Shell dismounting device of petroleum logging instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105986804A CN105986804A (en) | 2016-10-05 |
| CN105986804B true CN105986804B (en) | 2024-02-27 |
Family
ID=57036293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510048328.5A Active CN105986804B (en) | 2015-01-30 | 2015-01-30 | Shell dismounting device of petroleum logging instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105986804B (en) |
Citations (12)
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|---|---|---|---|---|
| CN201189652Y (en) * | 2008-04-10 | 2009-02-04 | 中国海洋石油总公司 | Sealing joint detaching device for tube of glass fibre reinforced plastic |
| CN201970261U (en) * | 2011-03-21 | 2011-09-14 | 中国海洋石油总公司 | Pulling-drawing tool capable of realizing rotational positioning |
| CN202668456U (en) * | 2012-06-17 | 2013-01-16 | 鞍钢集团矿业公司 | Hydrocoupling splitting device |
| CN202805082U (en) * | 2012-09-07 | 2013-03-20 | 中国海洋石油总公司 | Electrical circuit dismounting tool |
| CN202900114U (en) * | 2012-10-30 | 2013-04-24 | 中国海洋石油总公司 | Dismounting device of logging while drilling apparatus electronic framework |
| CN103117522A (en) * | 2013-02-20 | 2013-05-22 | 山东电力集团公司烟台供电公司 | Front cable plug separation device |
| CN103835671A (en) * | 2014-03-31 | 2014-06-04 | 石家庄市亿通京工机械制造有限公司 | Drilling machine with automatic drill stem disassembling device |
| CN203626664U (en) * | 2013-09-27 | 2014-06-04 | 中国石油天然气集团公司 | Lifting device of directional telemetry logging while drilling instrument |
| CN203843771U (en) * | 2014-04-28 | 2014-09-24 | 西安威尔罗根能源科技有限公司 | Novel extraction tool for pressure-bearing disc of downhole logging instrument |
| CN203961830U (en) * | 2014-07-28 | 2014-11-26 | 中国石油集团渤海钻探工程有限公司 | The anti-loose righting snap ring of oil well logging instrument |
| CN203956832U (en) * | 2014-07-01 | 2014-11-26 | 中国石油集团长城钻探工程有限公司 | Insulating short section lock ring removes and installs device |
| CN204591245U (en) * | 2015-01-30 | 2015-08-26 | 中石化石油工程技术服务有限公司 | A kind of disassembling shell device of oil well logging instrument |
-
2015
- 2015-01-30 CN CN201510048328.5A patent/CN105986804B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201189652Y (en) * | 2008-04-10 | 2009-02-04 | 中国海洋石油总公司 | Sealing joint detaching device for tube of glass fibre reinforced plastic |
| CN201970261U (en) * | 2011-03-21 | 2011-09-14 | 中国海洋石油总公司 | Pulling-drawing tool capable of realizing rotational positioning |
| CN202668456U (en) * | 2012-06-17 | 2013-01-16 | 鞍钢集团矿业公司 | Hydrocoupling splitting device |
| CN202805082U (en) * | 2012-09-07 | 2013-03-20 | 中国海洋石油总公司 | Electrical circuit dismounting tool |
| CN202900114U (en) * | 2012-10-30 | 2013-04-24 | 中国海洋石油总公司 | Dismounting device of logging while drilling apparatus electronic framework |
| CN103117522A (en) * | 2013-02-20 | 2013-05-22 | 山东电力集团公司烟台供电公司 | Front cable plug separation device |
| CN203626664U (en) * | 2013-09-27 | 2014-06-04 | 中国石油天然气集团公司 | Lifting device of directional telemetry logging while drilling instrument |
| CN103835671A (en) * | 2014-03-31 | 2014-06-04 | 石家庄市亿通京工机械制造有限公司 | Drilling machine with automatic drill stem disassembling device |
| CN203843771U (en) * | 2014-04-28 | 2014-09-24 | 西安威尔罗根能源科技有限公司 | Novel extraction tool for pressure-bearing disc of downhole logging instrument |
| CN203956832U (en) * | 2014-07-01 | 2014-11-26 | 中国石油集团长城钻探工程有限公司 | Insulating short section lock ring removes and installs device |
| CN203961830U (en) * | 2014-07-28 | 2014-11-26 | 中国石油集团渤海钻探工程有限公司 | The anti-loose righting snap ring of oil well logging instrument |
| CN204591245U (en) * | 2015-01-30 | 2015-08-26 | 中石化石油工程技术服务有限公司 | A kind of disassembling shell device of oil well logging instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105986804A (en) | 2016-10-05 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220216 Address after: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Applicant after: SINOPEC Group Applicant after: SINOPEC OILFIELD SERVICE Corp. Applicant after: Sinopec Jingwei Co.,Ltd. Applicant after: Shengli logging company of Sinopec Jingwei Co.,Ltd. Address before: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Applicant before: SINOPEC OILFIELD SERVICE Corp. Applicant before: WELL LOGGING COMPANY, SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |