CN104632117A - Mechanical pulling and running tool - Google Patents
Mechanical pulling and running tool Download PDFInfo
- Publication number
- CN104632117A CN104632117A CN201510060306.0A CN201510060306A CN104632117A CN 104632117 A CN104632117 A CN 104632117A CN 201510060306 A CN201510060306 A CN 201510060306A CN 104632117 A CN104632117 A CN 104632117A
- Authority
- CN
- China
- Prior art keywords
- connecting cylinder
- gathering sill
- control core
- limit hook
- claw
- 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.)
- Granted
Links
- 210000000078 claw Anatomy 0.000 claims description 31
- 239000004576 sand Substances 0.000 abstract description 7
- 230000006866 deterioration Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 11
- 238000005553 drilling Methods 0.000 description 10
- 238000013016 damping Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/12—Grappling tools, e.g. tongs or grabs
- E21B31/20—Grappling tools, e.g. tongs or grabs gripping internally, e.g. fishing spears
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Marine Sciences & Fisheries (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
Abstract
The invention provides a mechanical pulling and running tool comprising a connecting cylinder, an inclined guide piece connected with the connecting cylinder and a fishing head connected with the inclined guide piece. A limiting clamping hook, a control core and a clamping jaw are sequentially arranged in the connecting cylinder. One end of the clamping jaw is connected with the fishing head. The other end of the clamping jaw is connected with the control core. A V-shaped guide groove is formed in the surface of the control core. The opening of the V-shaped guide groove faces the clamping jaw. One end of the limiting clamping hook is hooked into the V-shaped guide groove, and the other end of the limiting clamping hook is hooked to the end face of the connecting cylinder. A reset spring is arranged at the end, connected with the V-shaped guide groove, of the limiting clamping hook in a sleeving mode. According to the mechanical pulling and running tool, an existing fishing spear is improved, so that the fishing head can still be disengaged from the inclined guide piece under the special conditions that an instrument gets stuck in settled sand, the situation that large-tonnage lifting causes breakage of a cable is avoided, the safety of the instrument is guaranteed, deterioration of an accident is avoided, and cost is greatly reduced.
Description
Technical field
The invention belongs to drilling engineering technical field, be specifically related to a kind of mechanical throw in catcher, for salvaging mud-pulse inclinometer in drilling well industry downhole drill process.
Background technology
Along with a large amount of uses of wireless drilling instrument, former wireless drilling inclinometers fishing tool, in drilling process, occur that down-hole accident exists when salvaging wireless drilling inclinometers salvage one-way, namely fishing tool blocks and draws tiltedly and cannot again throw off, if instrument due to sand setting in drilling tool stuck, can cause salvaging cable to pull off, cause drilling tool inner cable to fall well, affect next step accident treatment, cause down-hole accident complicated, have a strong impact on downhole safety, increase cost simultaneously.
Summary of the invention
The object of the invention is to overcome the problem increasing process down-hole fault difficulty and the possibility causing instrument to scrap when down-hole fault appears in existing fishing tool in drilling process because salvaging the failure of mud-pulse inclinometer.
For this reason, the invention provides a kind of mechanical throw in catcher, comprise connecting cylinder, be connected with connecting cylinder draw tiltedly and with draw the fishing head be tiltedly connected, be provided with limit hook in described connecting cylinder successively, control core, claw, described claw one end is connected with fishing head, and the other end is connected with control core, described control wicking surface is provided with V-type gathering sill, the opening of this V-type gathering sill is towards claw direction, and limit hook one end is hooked in V-type gathering sill, and the other end is hooked in the end face of connecting cylinder; Described limit hook is connected one end with V-type gathering sill and is arranged with back-moving spring, and the radial two ends of this back-moving spring are near connecting cylinder inwall.
Described limit hook is connected one end with the end face of connecting cylinder and is arranged with wire loop.
The described connecting cylinder other end is provided with connector.
Two V-type grooves that described V-type gathering sill is connected respectively by two ends form, and these two V-type channel opening directions are identical.
Described claw is connected by locknut with control core.
Described connecting cylinder is tiltedly threaded connection with drawing.
The invention has the beneficial effects as follows: the present invention adds limit hook, controls core and reseting spring device in primary tube in instrument fishing spear equipment, do not change original fishing tool on the one hand and salvage characteristic, salvaging rod member is utilized to transfer inertia and above carry the powered MWD fishing spear of transferring again on the other hand, effectively to drag for the MWD instrument of horizontal well, large hole deviation well, to put, ensure that instrument fishing spear under stuck state tiltedly can be thrown off smoothly with drawing, avoid accident complicated.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention salvages state;
Fig. 2 is the structural representation of commit condition of the present invention;
Fig. 3 is the structural representation of V-type gathering sill.
In figure: 1, connecting cylinder; 2, claw; 3, draw tiltedly; 4, limit hook; 5, back-moving spring; 6, core is controlled; 7, locknut; 8, fishing head; 9, connector; 10, the first summit; 11, the second summit; 12, wire loop.
Detailed description of the invention
Embodiment 1:
Present embodiments provide a kind of mechanical throw in catcher, comprise connecting cylinder 1, be connected with connecting cylinder 1 draw oblique 3 and with draw oblique 3 fishing heads be connected 8, be provided with limit hook 4 in described connecting cylinder 1 successively, control core 6, claw 2, described claw 2 one end is connected with fishing head 8, the other end is connected with control core 6, and described control core 6 surface is provided with V-type gathering sill, and the opening of this V-type gathering sill is towards claw 2 direction, limit hook 4 one end is hooked in V-type gathering sill, and the other end is hooked in the end face of connecting cylinder 1; Described limit hook 4 is connected one end with V-type gathering sill and is arranged with back-moving spring 5, and the radial two ends of this back-moving spring are near connecting cylinder inwall.
Implementation process of the present invention: first claw 2 and control core 6 are connected to form and control core 6 assembly, back-moving spring 5 is set in limit hook 4 and is connected one end with V-type gathering sill, be contained in connecting cylinder 1, then limit hook 4 one end is hooked in the V-type gathering sill controlling core 6, now limit hook 4 hooks with one end of V-type gathering sill, the other end is hooked in the end-face hole of connecting cylinder 1, and finally will draw oblique 3 and be arranged on connecting cylinder 1, back-moving spring 5 is in compressive state.
Specific works process: when salvaging, limit hook 4 is slided to summit place along one end of V-type gathering sill, now control core 6 to move to drawing oblique 3 directions with claw 2, back-moving spring 5 resets gradually, and claw 2 is sitting in and draws on oblique 3, then enters in connecting cylinder 1 by fishing head 8 by drawing oblique 3, fishing head 8 blocks by claw 2, can salvage underground equipment, when salvaging state, salvaged weight of equipment acts on drawing on oblique 3 of throw in catcher.
When there is instrument or equipment in salvaging process by the special circumstances such as sand setting is stuck, limit hook 4 is slided to one end place along the summit of V-type gathering sill, limit hook 4 pulls and controls core 6 assembly, control core 6 and claw 2 are moved to away from drawing oblique 3 directions, now claw 2 with draw oblique 3 emaciated faces from, fishing head 8 and claw 2 are thrown off, and disengaged condition acts on throw in catcher without weight of equipment.
Back-moving spring 5 in the present embodiment, provides damping and restoring force for controlling core 6 when salvaging and throw in.
This tool throw in catcher that the present embodiment provides is by improving existing fishing spear, make it instrument by the stuck grade of sand setting in particular cases fishing tool still can throw off with drawing oblique 3, avoiding large-tonnage is carried causes cable to put off, ensure the safety of instrument, avoid the further deterioration of accident, also do not hinder the normal work of instrument and the salvaging in other situations simultaneously, frame for movement changes, operation is simple, with low cost, can reduce the risk cost of special well further.
Embodiment 2:
Present embodiments provide a kind of mechanical throw in catcher, first claw 2 and control core 6 are connected to form and control core 6 assembly, back-moving spring 5 is set in limit hook 4 and is connected one end with V-type gathering sill, be contained in connecting cylinder 1, then limit hook 4 one end is hooked in the V-type gathering sill controlling core 6, now limit hook 4 hooks with one end of V-type gathering sill, and the other end is hooked in the end-face hole of connecting cylinder 1, finally will draw oblique 3 is arranged on connecting cylinder 1, and back-moving spring 5 is in compressive state; Limit hook 4 is connected one end with the end face of connecting cylinder 1 and is arranged with wire loop 12, prevents limit hook 4 from deviating from, and by locked for limit hook 4, can not ensure that limit hook 4 can be free to slide in V-type gathering sill simultaneously.
Embodiment 3:
Present embodiments provide a kind of mechanical throw in catcher, connected to form by claw 2 and control core 6 and control core 6 assembly, back-moving spring 5 is set in limit hook 4 and is connected one end with V-type gathering sill, be contained in connecting cylinder 1, then limit hook 4 one end is hooked in the V-type gathering sill controlling core 6, now limit hook 4 hooks with one end of V-type gathering sill, and the other end is hooked in the end-face hole of connecting cylinder 1, finally will draw oblique 3 is arranged on connecting cylinder 1, and back-moving spring 5 is in compressive state; Connecting cylinder 1 other end is provided with connector 9, and during salvaging, connector 9 other end can be threaded connection with salvaging rod member.
The present invention adds limit hook 4, controls core 6 and back-moving spring 5 device in original fishing spear equipment, do not change original fishing tool on the one hand and salvage characteristic, salvaging rod member is utilized to transfer inertia and above carry the powered MWD fishing spear of transferring again on the other hand, effectively to drag for the MWD instrument of horizontal well, large hole deviation well, to put, ensure instrument under stuck state fishing spear with draw oblique 3 and can throw off smoothly, avoid accident complicated.
Embodiment 4:
The invention provides a kind of mechanical throw in catcher as shown in Figure 1, 2, comprise connecting cylinder 1, be connected with connecting cylinder 1 draw oblique 3 and with draw oblique 3 fishing heads be connected 8, be provided with limit hook 4 in described connecting cylinder 1 successively, control core 6, claw 2, described claw 2 one end is connected with fishing head 8, the other end is connected with control core 6 by locknut 7, described control core 6 surface is provided with V-type gathering sill, the opening of this V-type gathering sill is towards claw 2 direction, limit hook 4 one end is hooked in V-type gathering sill, and the other end is hooked in the end face of connecting cylinder 1; Described limit hook 4 is connected one end with V-type gathering sill and is arranged with back-moving spring 5, limit hook 4 is connected one end with the end face of connecting cylinder 1 and is arranged with wire loop 12, connecting cylinder 1 other end is provided with connector 9, wherein, connecting cylinder 1 with draw oblique 3 and be threaded connection, what can be replaced by corresponding model according to the size of fishing head 8 draws oblique 3, meets different salvaging demands.
Thereafter, two V-type grooves that V-type gathering sill is connected respectively by two ends form, and these two V-type channel opening directions are identical, as shown in Figure 3.
The mechanical throw in catcher specific implementation process that the present embodiment provides: first claw 2 and control core 6 are connected to form and control core 6 assembly, back-moving spring 5 is set in limit hook 4 and is connected one end with V-type gathering sill, be contained in connecting cylinder 1, then limit hook 4 one end is hooked in the V-type gathering sill controlling core 6, now limit hook 4 hooks with the first summit 10 of V-type gathering sill, the other end is hooked in the end-face hole of connecting cylinder 1, and finally will draw oblique 3 and be arranged on connecting cylinder 1, back-moving spring 5 is in compressive state.
Specific works process: as shown in Figure 3, when salvaging, limit hook 4 is slided to the second summit 11 place along the first summit 10 of V-type gathering sill, and now control core 6 and move to drawing oblique 3 directions with claw 2, back-moving spring 5 resets gradually, claw 2 is sitting in and draws on oblique 3, then enter in connecting cylinder 1 by fishing head 8 by drawing oblique 3, fishing head 8 blocks by claw 2, can salvage underground equipment, during salvaging state, salvaged weight of equipment acts on drawing on oblique 3 of throw in catcher.
When there is instrument or equipment in salvaging process by the special circumstances such as sand setting is stuck, limit hook 4 is slided to the first summit 10 place along the second summit 11 of V-type gathering sill, limit hook 4 pulls and controls core 6 assembly, control core 6 and claw 2 are moved to away from drawing oblique 3 directions, now claw 2 with draw oblique 3 emaciated faces from, fishing head 8 and claw 2 are thrown off, and disengaged condition acts on throw in catcher without weight of equipment.
Back-moving spring 5 in the present embodiment, provides damping and restoring force for controlling core 6 when salvaging and throw in.
2014, use the present embodiment machinery throw in catcher to complete 10 mouthfuls of accident wells, because instrument sand card can not be salvaged, successfully throw off 3 mouthfuls of wells, reduce cable loss 5000m, accumulative cost-saving nearly 500,000 yuan altogether.
In sum, the present invention instrument by the stuck grade of sand setting in particular cases fishing tool still can throw off with drawing oblique 3, avoid large-tonnage is carried and cause cable to put off, ensure the safety of instrument, avoid the further deterioration of accident, also do not hinder the normal work of instrument and the salvaging in other situations simultaneously; The present invention does not relate to electronics and the frame for movement change of MWD instrument, operation is simple, with low cost, can reduce the risk cost of special well further, can promote at situ of drilling well widely, the scope of application is large, by transforming instrument fishing spear in primary tube, ensure that the salvaging process safety of MWD instrument, avoid accident complicated, can be applicable to use the special well such as horizontal well, directional well sitting keyed MWD.
Embodiment does not have specifically described part all to belong to common practise and the known technology of the art, describes in detail no longer one by one herein.
More than exemplifying is only illustrate of the present invention, does not form the restriction to protection scope of the present invention, everyly all belongs within protection scope of the present invention with the same or analogous design of the present invention.
Claims (6)
1. mechanical throw in catcher, comprise connecting cylinder (1), be connected with connecting cylinder (1) draw tiltedly (3) and with the fishing head (8) drawing tiltedly (3) and be connected, it is characterized in that: in described connecting cylinder (1), be provided with limit hook (4) successively, control core (6), claw (2), described claw (2) one end is connected with fishing head (8), the other end is connected with control core (6), described control core (6) surface is provided with V-type gathering sill, the opening of this V-type gathering sill is towards claw (2) direction, limit hook (4) one end is hooked in V-type gathering sill, the other end is hooked in the end face of connecting cylinder (1), described limit hook (4) is connected one end and is arranged with back-moving spring (5) with V-type gathering sill, this back-moving spring (5) radial two ends are near connecting cylinder (1) inwall.
2. mechanical throw in catcher according to claim 1, is characterized in that: described limit hook (4) is connected one end with the end face of connecting cylinder (1) and is arranged with wire loop (12).
3. mechanical throw in catcher according to claim 1, is characterized in that: described connecting cylinder (1) other end is provided with connector (9).
4. mechanical throw in catcher according to claim 1, is characterized in that: two V-type grooves that described V-type gathering sill is connected respectively by two ends form, and these two V-type channel opening directions are identical.
5. mechanical throw in catcher according to claim 1, is characterized in that: described claw (2) is connected by locknut (7) with control core (6).
6. mechanical throw in catcher according to claim 1, is characterized in that: described connecting cylinder (1) with draw tiltedly (3) and be threaded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510060306.0A CN104632117B (en) | 2015-02-05 | 2015-02-05 | Mechanical throw in catcher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510060306.0A CN104632117B (en) | 2015-02-05 | 2015-02-05 | Mechanical throw in catcher |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104632117A true CN104632117A (en) | 2015-05-20 |
| CN104632117B CN104632117B (en) | 2017-10-03 |
Family
ID=53211296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510060306.0A Active CN104632117B (en) | 2015-02-05 | 2015-02-05 | Mechanical throw in catcher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104632117B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4101157A (en) * | 1977-07-11 | 1978-07-18 | Richey Vernon T | Tool for fishing an object from a bore hole |
| US4232894A (en) * | 1979-08-02 | 1980-11-11 | Taylor William T | Selectively releasable overshot and pull tool |
| CN2916111Y (en) * | 2006-05-23 | 2007-06-27 | 辽河石油勘探局 | Releasing dragging device |
| CN201013287Y (en) * | 2007-03-01 | 2008-01-30 | 华北石油管理局 | Retrievable fishing barrel for reclaiming bridging plug |
| CN201068761Y (en) * | 2007-08-09 | 2008-06-04 | 丁广营 | Down-hole salvaging tool |
| CN203362092U (en) * | 2013-07-01 | 2013-12-25 | 李士铭 | Retractable fishing cylinder |
| CN204511354U (en) * | 2015-02-05 | 2015-07-29 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Machinery throw in catcher |
-
2015
- 2015-02-05 CN CN201510060306.0A patent/CN104632117B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4101157A (en) * | 1977-07-11 | 1978-07-18 | Richey Vernon T | Tool for fishing an object from a bore hole |
| US4232894A (en) * | 1979-08-02 | 1980-11-11 | Taylor William T | Selectively releasable overshot and pull tool |
| CN2916111Y (en) * | 2006-05-23 | 2007-06-27 | 辽河石油勘探局 | Releasing dragging device |
| CN201013287Y (en) * | 2007-03-01 | 2008-01-30 | 华北石油管理局 | Retrievable fishing barrel for reclaiming bridging plug |
| CN201068761Y (en) * | 2007-08-09 | 2008-06-04 | 丁广营 | Down-hole salvaging tool |
| CN203362092U (en) * | 2013-07-01 | 2013-12-25 | 李士铭 | Retractable fishing cylinder |
| CN204511354U (en) * | 2015-02-05 | 2015-07-29 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Machinery throw in catcher |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104632117B (en) | 2017-10-03 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201028 Address after: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Chuanqing Drilling Engineering Co.,Ltd. Address before: Weiyang road 710018 Shaanxi city of Xi'an province Changqing No. 151 building room 1902 Patentee before: CNPC CHUANQING DRILLING ENGINEERING CO., LTD. CHANGQING WELL DRILLING GENERAL Co. |
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| TR01 | Transfer of patent right |