CN202946082U - Hydraulic type coring tool special salvage tool - Google Patents
Hydraulic type coring tool special salvage tool Download PDFInfo
- Publication number
- CN202946082U CN202946082U CN 201220593607 CN201220593607U CN202946082U CN 202946082 U CN202946082 U CN 202946082U CN 201220593607 CN201220593607 CN 201220593607 CN 201220593607 U CN201220593607 U CN 201220593607U CN 202946082 U CN202946082 U CN 202946082U
- Authority
- CN
- China
- Prior art keywords
- tool
- locking
- coring tool
- hydraulic control
- control plug
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to the field of petroleum and natural gas drilling engineering coring, in particular to a hydraulic type coring tool special salvage tool. A central pipe is sequentially sleeved with a locking cap, a locking piece, a hydraulic cylinder, a piston, a locking awl body and a slip from up to down. The hydraulic cylinder and the piston are connected though pins. A check ring and a locking expansion ring are arranged on the inner side of the locking awl body. A hydraulic control plug can be arranged inside the central pipe, and the lower end of the hydraulic control plug and a guiding shoe can be formed into a seal. A limit tabletting is arranged inside a central channel of the hydraulic control plug. The hydraulic type coring tool special salvage tool achieves high success rate, safety and reliability of the salvage coring tool and overcomes the defect that a salvage tool salvage coring tool in the prior art is low in success rate.
Description
Technical field:
The utility model relates to a kind of oil and gas drilling engineering core field, particularly a kind of fluid pressure type coring tool Special fishing tool.
Background technology:
The domestic coring tool that uses does not at present have special fishing tool.In case coring tool falls in the process of coring for various reasons in well, salvage with drilling tool fishing tool commonly used, due to the coring tool complex structure, be difficult to find suitable fishing tool, fishing success ratio is very low.Cause the phenomenon that oil well is scrapped to happen occasionally.
The utility model content:
The technical problems to be solved in the utility model is to provide a kind of fluid pressure type coring tool Special fishing tool, and this instrument has realized that salvaging coring tool success rate is high, safe and reliable.Overcome existing fishing tool and salvaged the low deficiency of coring tool success rate.
Technical solution adopted in the utility model is: a kind of fluid pressure type coring tool Special fishing tool, comprise joint, central tube and guide shoe, and joint, central tube and guide shoe are connected and are connected in turn; Be set with successively from top to bottom locking cap, stay, fluid cylinder, piston, locking centrum and slips on central tube, be connected by pin between fluid cylinder and piston, locking centrum installed inside has back-up ring and the locking ring that rises, the hydraulic control plug can be put in central tube and the lower end sphere of hydraulic control plug can form sealing with guide shoe, is provided with the pressure limiting sheet in the central passage of hydraulic control plug.
Be designed with 4 wiper blocks on the locking cap outer wall.
Locking is risen and is encircled the unidirectional inclined to one side screw thread of inboard design and identical with the unidirectional inclined to one side screw thread on central tube.
Locking is risen to encircle and is adopted spring steel.
The slips tooth adopts left hand thread.
The beneficial effects of the utility model are: the utility model has been owing to having adopted hydraulic structure, thereby has the slips of making and coring tool reliable lock, the function that disposable fishing success ratio is high, and use procedure is safe and reliable.
Description of drawings:
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of hydraulic control plug.
The specific embodiment:
As shown in Figure 1 and Figure 2, a kind of fluid pressure type coring tool Special fishing tool comprises joint 1, central tube 2 and guide shoe 13, and joint 1, central tube 2 are connected with guide shoe from top to bottom and are connected in turn; Be set with successively from top to bottom locking cap 3, stay 4, fluid cylinder 5, piston 6, locking centrum 9 and slips 11 on central tube 2, be connected by pin 7 between fluid cylinder 5 and piston 6, locking centrum 9 installed inside have back-up ring 8 and the locking ring 10 that rises, hydraulic control plug 12 can be put in central tube 2 and the lower end sphere of hydraulic control plug 12 can form sealing with guide shoe 13, is provided with pressure limiting sheet 14 in the central passage of hydraulic control plug 12.Be designed with 4 wiper blocks on locking cap 3 outer walls.Locking is risen and is encircled the 10 unidirectional inclined to one side screw threads of inboard design and identical with the unidirectional inclined to one side screw thread on central tube 2.Locking is risen and is encircled 10 employing spring steel.Slips 11 teeth adopt left hand thread.
When needs were salvaged, the utility model was transferred to the shaft bottom by drilling tool, searches out junk, by guide shoe 13, the utility model was entered in the coring tool that needs salvaging.After the turn on pump circulation is normal, drop into hydraulic control plug 12(sphere at well head downward), after hydraulic control plug 12 put in place, liquid entered in fluid cylinder 5 by aperture, and pump pressure begins to rise, when pump pressure rises to 8-10Mpa, cut off pin 7, piston 6 is descending, and promotion locking centrum 9 is descending, make slips 11 spreadings, block the coring tool internal diameter.Pump pressure is larger, and the power of slips 11 locking coring tools is larger.When pump pressure reaches 15-18Kpa, pressure limiting sheet 14 explosions in hydraulic control plug 12, pump pressure descends, and the operation of fishing tool locking coring tool finishes.On carry drilling tool, salvage coring tool.
Automatically unclamp in order to prevent that locking centrum 9 returns to slips 11 after 14 explosions of pressure limiting sheet, be designed with the locking ring 10 that rises in locking centrum 9.The unidirectional inclined to one side screw thread of locking on rise the ring 10 unidirectional inclined to one side screw threads of interior design and central tube 2 matches.When piston 6 promotes locking centrum 9 when descending, locking is simultaneously risen and is encircled 10 outside swells, unidirectional inclined to one side screw thread on unidirectional inclined to one side screw thread and central tube 2 is thrown off, lock the ring 10 that rises descending with locking centrum 9, when the 14 descending end of explosion of pressure limiting sheet, due to locking ring 10 the elastic reaction that rises, the locking ring 10 unidirectional inclined to one side screw threads that rise are again identical with the unidirectional inclined to one side screw thread on central tube 2, unidirectional inclined to one side screw thread stops locking centrum 9 to return, and realizes preventing the purpose that slips 11 unclamps automatically.
For preventing slips 11 scratch in the borehole wall in going down process, 4 wiper blocks of design, make the utility model be in all the time center condition in well on locking cap 3 outer walls, plays the effect of protection slips 11.
Be understandable that, above about specific descriptions of the present utility model, only for the utility model being described and being not to be subject to the described technical scheme of the utility model embodiment, those of ordinary skill in the art is to be understood that, still can modify or be equal to replacement the utility model, to reach identical technique effect; Use needs as long as satisfy, all within protection domain of the present utility model.
Claims (5)
1. a fluid pressure type coring tool Special fishing tool, comprise joint (1), central tube (2) and guide shoe (13), and joint (1), central tube (2) are connected 13 with guide shoe) connect in turn from top to bottom, it is characterized in that: be set with successively from top to bottom locking cap (3) on central tube (2), stay (4), fluid cylinder (5), piston (6), locking centrum (9) and slips (11), be connected by pin (7) between fluid cylinder (5) and piston (6), locking centrum (9) installed inside has back-up ring (8) and the locking ring (10) that rises, hydraulic control plug (12) can be put in central tube (2) and the lower end sphere of hydraulic control plug (12) can form sealing with guide shoe (13), be provided with pressure limiting sheet (14) in the central passage of hydraulic control plug (12).
2. according to fluid pressure type coring tool Special fishing tool claimed in claim 1, it is characterized in that: be designed with 4 wiper blocks on described locking cap (3) outer wall.
3. according to fluid pressure type coring tool Special fishing tool claimed in claim 1, it is characterized in that: rise ring (10) the unidirectional inclined to one side screw thread of inboard design and coincideing with unidirectional inclined to one side screw thread on central tube (2) of described locking.
4. according to fluid pressure type coring tool Special fishing tool claimed in claim 1, it is characterized in that: the described locking ring (10) that rises adopts spring steel.
5. according to fluid pressure type coring tool Special fishing tool claimed in claim 1, it is characterized in that: described slips (11) tooth adopts left hand thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220593607 CN202946082U (en) | 2012-11-12 | 2012-11-12 | Hydraulic type coring tool special salvage tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220593607 CN202946082U (en) | 2012-11-12 | 2012-11-12 | Hydraulic type coring tool special salvage tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202946082U true CN202946082U (en) | 2013-05-22 |
Family
ID=48421789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220593607 Expired - Fee Related CN202946082U (en) | 2012-11-12 | 2012-11-12 | Hydraulic type coring tool special salvage tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202946082U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105401903A (en) * | 2016-01-07 | 2016-03-16 | 西南石油大学 | Three-jaw fisher for coiled tubing |
| CN111894504A (en) * | 2020-07-30 | 2020-11-06 | 合力（天津）能源科技股份有限公司 | Hydraulic sealing patch connector suitable for casing and oil pipe |
-
2012
- 2012-11-12 CN CN 201220593607 patent/CN202946082U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105401903A (en) * | 2016-01-07 | 2016-03-16 | 西南石油大学 | Three-jaw fisher for coiled tubing |
| CN105401903B (en) * | 2016-01-07 | 2017-11-14 | 西南石油大学 | A kind of coiled tubing three-jaw fisher |
| CN111894504A (en) * | 2020-07-30 | 2020-11-06 | 合力（天津）能源科技股份有限公司 | Hydraulic sealing patch connector suitable for casing and oil pipe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201924870U (en) | Hydraulic setting tool | |
| CN205605160U (en) | Formula of breaking tail pipe blanking plug | |
| CN201050318Y (en) | Loose ground closed core-picking tool | |
| CN202850941U (en) | Drilling-free-type grading cementing device | |
| CN102747982B (en) | Hydraulic mechanical integrated bridge plug | |
| CN202946082U (en) | Hydraulic type coring tool special salvage tool | |
| CN201152161Y (en) | Outer pipe packer for cementing absorption well | |
| CN205532494U (en) | Pigging scraping integration tool | |
| CN202914019U (en) | Packer seat sealing mechanism for coiled tubing | |
| CN203742506U (en) | Forcing float collar type prestressing force well cementation ground anchor assembly | |
| CN201314218Y (en) | Hydraulic-pressure bridge plug | |
| CN202417348U (en) | Anti-dropping device of drilling tool | |
| CN105401903A (en) | Three-jaw fisher for coiled tubing | |
| CN206233895U (en) | Water plugging of horizontal well process pipe string | |
| CN201943597U (en) | Hydraulic safety connector | |
| CN201598987U (en) | Positive constant-pressure blocking casing guide shoe | |
| CN202706985U (en) | Hydraulic machinery integrated bridge plug | |
| CN203531867U (en) | Primary sand prevention letting-in tool and secondary resanding extruding and filling tool of primary sand prevention letting-in tool | |
| CN201554405U (en) | Hydraulic grappling tool | |
| CN207161048U (en) | One kind divides valve bridging plug cable setting tool | |
| CN203296730U (en) | Hydraulic-starting buckling and releasing mechanism | |
| CN205370488U (en) | Oil well hydraulic pressure is carried and is drawn fishing device | |
| CN206267805U (en) | New H-type Safe Joints | |
| CN104895552A (en) | Emergency safe release device for apparatus for measurement while drilling | |
| CN203271660U (en) | Emergency release suspension tool for marine operation oil tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20141112 |
|
| EXPY | Termination of patent right or utility model |