CN2816331Y - Pipe-slip type sleeve pipe head - Google Patents
Pipe-slip type sleeve pipe head Download PDFInfo
- Publication number
- CN2816331Y CN2816331Y CN 200520107003 CN200520107003U CN2816331Y CN 2816331 Y CN2816331 Y CN 2816331Y CN 200520107003 CN200520107003 CN 200520107003 CN 200520107003 U CN200520107003 U CN 200520107003U CN 2816331 Y CN2816331 Y CN 2816331Y
- Authority
- CN
- China
- Prior art keywords
- slip
- sleeve pipe
- built
- slips
- lockpin
- 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 - Lifetime
Links
Images
Abstract
The utility model relates to a well head control mechanical device for an oil (gas) extraction well in the production of an oil field. In particular to a slip type sleeve pipe head. The utility model is mainly composed of a built-in slip (3), a slip seat (4), a main body (5), etc., wherein the built-in slip (3) is positioned in the slip seat (4), the lower end of the slip seat (4) is designed with an outer step, and the slip seat (4) is arranged on an inner step of the main body (5). The built-in slip (3) is fixed on a spring locking ring (2) by a slip fixing screw (1), and the upper part of the spring locking ring (2) is evenly distributed with screw holes of which the quantity is the same as the slips. The upper part of the opening of a lock ring is designed with two pin holes of which the upper part and the lower part are symmetrical, a lockpin (6) is inserted in each pin hole, the upper end of the lockpin (6) is processed with a rope threading hole, and the corresponding position of the slip seat is also processed with a through hole. The utility model adopts the matching structural design of the spring locking ring and the lockpin, a rope can be threaded by the rope threading hole of the lockpin and the state of the spring locking ring can be controlled by the method that the lockpin is controlled and drown out. Consequently, the utility model can realize the hanging operation of the well head control sleeve pipe in a long distance and ensure the safety when the sleeve pipe is in hanging operation.
Description
Technical field
The utility model relates to the well head control plant equipment of (gas) well that recovers the oil in the field produces, and particularly a kind of slip-type casing tube head belongs to oil drilling bank head machinery device.
Background technology
At present, in oil drilling (well cementation) operation process, can finish the suspension Job Operations after when suspension sleeve, all blowout preventer need being dismantled, this will cause, and well head is in no control state in the operation process, bring hidden danger to safety in production, the blowout preventer of dismounting simultaneously labour intensity is big, and holding time is long, brings very big inconvenience for the construction of drilling team.And be used for the thermal extraction casing head of thick oil thermal extraction special cementing, though its slip-type hangs to have realized both can having controlled on rig floor the seat of sleeve pipe is hung and be need not to dismantle blowout preventer, guaranteed that thermal production well band preventer carries out prestressing force the control well cementation is arranged, reduced difficulty of construction, but when rig floor carries out the sleeve pipe suspension operational, still need operate carrying under 30 tons～50 tons prestressed elevators, have certain potential safety hazard.
Summary of the invention
Safety during for assurance sleeve pipe suspension operational, the utility model provides a kind of slip-type casing tube head, can carry out the sleeve pipe suspension operational away from well head, has eliminated the potential safety hazard of present existence.
The utility model mainly partly is made up of built-in slips 3, slip spider 4, body 5 etc., built-in slips 3 is positioned at slip spider 4, the design of slip spider 4 lower ends has outer step, seat is on the interior step of body 5, it is characterized in that: slips hold-down screw 1 is fixed on built-in slips 3 on the snap ring 2, be evenly equipped with the screw hole identical on the snap ring 2 with slips quantity, design has laterally zygomorphic two pin-and-holes at the shackle openings place, lock pin 6 is inserted in the pin-and-hole, lock pin (6) upper end is processed with a lacing hole, and slip spider (4) correspondence position also is processed with through hole.
The structure design that the utility model adopts snap ring 2 to cooperate with lock pin 6, can put on rope by the lacing hole of lock pin 6, extract the state that lock pin 6 comes control spring lock ring 2 by control, thereby realize hanging operation, the safety when having guaranteed the sleeve pipe suspension operational away from well head control sleeve pipe.
Description of drawings
Fig. 1 the utility model structural representation
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.The utility model mainly partly is made up of built-in slips 3, slip spider 4, body 5 etc., built-in slips 3 is positioned at slip spider 4, the design of slip spider 4 lower ends has outer step, seat is on the interior step of body 5, it is characterized in that: slips hold-down screw 1 is fixed on built-in slips 3 on the snap ring 2, be evenly equipped with the screw hole identical on the snap ring 2 with slips quantity, design has laterally zygomorphic two pin-and-holes at the shackle openings place, lock pin 6 is inserted in the pin-and-hole, lock pin 6 upper ends are processed with a lacing hole, and slip spider 4 correspondence positions also are processed with through hole.When install and use at the scene, when after finishing drilling (or in intact), being lowered to oil reservoir (or technology) sleeve pipe, before last root, at first built-in slips 3 is fixed on the snap ring 2 with slips hold-down screw 1, strutting snap ring 2 then makes it be in unlocking condition and inserts the back with lock pin 6 fixing (this moment, snap ring was under unlocking condition, be slightly larger than the cover external diameter of pipe by slips around the interior latus rectum that forms), again snap ring 2 is installed in the slip spider 4, to assemble slip spider 4 then from the pin end of sleeve pipe cover upwards, and connect sleeve pipe and made 4 of slip spiders on the box cupling of second from the bottom sleeve pipe.One end of operation rope passes the pre-drilled through hole in upper surface and lock pin 6 corresponding sections of slip spider 4 earlier, is that the operation rope other end is positioned at the rig floor face on the annulus with lock pin 6 again.Utilization connects landing joint and transfers sleeve pipe, with the box cupling of last root sleeve pipe slip spider 4 is pressed in the body 5, and slip spider 4 can be positioned on the step surface in the body 5.Need only be during conventional cementing on request with after mentioning the height of requirement on the sleeve pipe, carrying the rope that lies on the lock pin 6 on (away from the position of well head) on the rig floor, lock pin 6 is extracted, make built-in slips 3 under the effect of snap ring 2 convergent forces, hold sleeve pipe tightly, slowly transfer sleeve pipe, till built-in slips 3 locking oil reservoir (or technology) sleeve pipes 7, finish suspension operation to sleeve pipe; , if the heavy crude heat extraction special cementing, when lifting prestressing force, carry sleeve pipe on palpus is slow, make suspending weight increase to the tensile load of design, carrying the rope that lies on the lock pin 6 on (away from the position of well head) on the rig floor, lock pin 6 is extracted, made built-in slips 3 under the effect of snap ring 2 convergent forces, hold sleeve pipe tightly.Slowly transfer sleeve pipe, till built-in slips 3 locking oil reservoir (or technology) sleeve pipes 7, can finish suspension operation sleeve pipe.
Claims (1)
1. slip-type casing tube head, mainly by built-in slips (3), slip spider (4), part such as body (5) is formed, built-in slips (3) is positioned at slip spider (4), the design of slip spider (4) lower end has outer step, seat is on the interior step of body (5), it is characterized in that: slips hold-down screw (1) is fixed on built-in slips (3) on the snap ring (2), be evenly equipped with the screw hole identical on the snap ring (2) with slips quantity, design has laterally zygomorphic two pin-and-holes at the shackle openings place, lock pin (6) is inserted in the pin-and-hole, lock pin (6) upper end is processed with a lacing hole, and slip spider (4) correspondence position also is processed with through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520107003 CN2816331Y (en) | 2005-08-17 | 2005-08-17 | Pipe-slip type sleeve pipe head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520107003 CN2816331Y (en) | 2005-08-17 | 2005-08-17 | Pipe-slip type sleeve pipe head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2816331Y true CN2816331Y (en) | 2006-09-13 |
Family
ID=36996138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520107003 Expired - Lifetime CN2816331Y (en) | 2005-08-17 | 2005-08-17 | Pipe-slip type sleeve pipe head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2816331Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578482A (en) * | 2019-10-11 | 2019-12-17 | 谢耀志 | Wellhead casing pipe dismounting device |
-
2005
- 2005-08-17 CN CN 200520107003 patent/CN2816331Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110578482A (en) * | 2019-10-11 | 2019-12-17 | 谢耀志 | Wellhead casing pipe dismounting device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1354122B1 (en) | Collar load support system and method | |
| CN105804680B (en) | A kind of oil gas field workover operation device with pressure and method | |
| CN102777156A (en) | Fracturing method for multi-interval oil and gas wells | |
| CN102953724B (en) | Horizontal wellbore logging anti-top tripper | |
| CN102953702A (en) | Horizontal well logging hanging unlocking device | |
| CN109138880B (en) | Bidirectional anchor | |
| CN208073422U (en) | A kind of cold soluble bridge plug | |
| CN104612612B (en) | Hanging and tensioning device, production tubular column and tensioning and tie-back method of coiled tubing | |
| CN2816331Y (en) | Pipe-slip type sleeve pipe head | |
| CN203081365U (en) | Horizontal-well-logging top-proof unlocking apparatus | |
| CN107780862A (en) | Underground throttle device fishing device | |
| CN201273169Y (en) | High-pressure fishing type suspension packing tool | |
| CN201924865U (en) | Slip type casing head sealing device | |
| CN101368474B (en) | Mechanical dragging type anti-propping slips | |
| CN203081367U (en) | Large drift diameter hollow ground anchor for oil and gas well cementation and completion practice | |
| CN102561988A (en) | Small-diameter water-swelling setting plug | |
| CN202745769U (en) | Under-pressure tripping-in device of continuous tube overlong drilling tool | |
| CN205532421U (en) | Oil field borehole operation water conservancy anchor | |
| CN109798087A (en) | A kind of retrievable hanging packer of double packing elements | |
| CN201103379Y (en) | Oil tube discharging device | |
| CN211258555U (en) | Lifting type spray-proof anchor | |
| CN110145268B (en) | Oil pump anchor | |
| CN208518626U (en) | A kind of pipe elevator | |
| CN2580096Y (en) | Underwell hydraulic pulling releasing device | |
| CN201358744Y (en) | Well head pressing and sealing device of oil-water well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20081212 Address after: Hongyan Karamay Road, the Xinjiang Uygur Autonomous Region No. 80, zip code: 834000 Patentee after: Western Drilling Kelamayi Drilling Technology Institute Address before: Hongyan Karamay Road, the Xinjiang Uygur Autonomous Region No. 80, zip code: 834000 Patentee before: Research Inst of Drilling Technology, Xinjiang Petroleum Administration |
|
| ASS | Succession or assignment of patent right |
Owner name: WEST DRILLING KARAMAY DRILLING CRAFT RESEARCH INST Free format text: FORMER OWNER: DRILLING WELL TECHNOLOGY INSTITUTE, PETROLEUM ADMINISTRATION BUREAU, XINJIANG Effective date: 20081212 |
|
| CX01 | Expiry of patent term |
Expiration termination date: 20150817 Granted publication date: 20060913 |
|
| EXPY | Termination of patent right or utility model |