CN201786275U - Apparatus for preventing overturn of well workover pipe string - Google Patents
Apparatus for preventing overturn of well workover pipe string Download PDFInfo
- Publication number
- CN201786275U CN201786275U CN2010205398120U CN201020539812U CN201786275U CN 201786275 U CN201786275 U CN 201786275U CN 2010205398120 U CN2010205398120 U CN 2010205398120U CN 201020539812 U CN201020539812 U CN 201020539812U CN 201786275 U CN201786275 U CN 201786275U
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- China
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- mainboard
- jaw
- tubing string
- well workover
- utility
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Abstract
The utility model discloses an apparatus for preventing overturn of well workover pipe string which is applicable to preventing overturn of the upper part of the pipe string in construction with hydrodynamic force drilling tool. The utility model comprises a upper main board and a lower main board, the two being connected through bolts, a mechanism for preventing overturn being mounted inside the inner chamber between the upper main board and the lower main board. As an overturn occurs to the upper part of the pipe string, the utility model will immediately clamps the upper part of the pipe string so as to prevent the overturn. The adoption of a jaw plate assembly and a pre-tightening torsion spring enables the utility model to have efficient performance of preventing overturn, safety, and reliability. The replacement of the utility model for pipe twist can effectively prevent incident caused by overturn of the upper part of pipe string while the hydrodynamic force drilling tool is usage. The utility model can avoid secondary mechanical breakdown and personal injury caused by breakdown of tail rope and abscisic of pipe wrench. The utility model spares requires no repetitive adjustment of height, reduces labor intensity, and increase construction efficiency.
Description
Technical field
The utility model belongs to the auxiliary equipment of the workover operation construction of petroleum industry, and particularly well workover tubing string anti kickback attachment prevents top tubing string reversing when being applicable to the construction of hydrodynamic force drilling tool.
Background technology
Along with the continuity of oil field development time, the hydrodynamic force drilling tool utilization rate of boring, grinding, mill in the job execution at oil-water well constantly increases efficiently.And the hydrodynamic force drilling tool is in application process, because trouble of lost tool in hole situation complexity, the aggravation of phenomenons such as latter period of oilfield development casing corrosion, distortion in addition easily causes the down-hole bit bouncing, makes top tubing string counter-rotating, causes mechanical accident and personal injury to happen occasionally.At present, adopt common pipe wrench to prevent top tubing string counter-rotating for preventing that the tubing string counter-rotating of hydrodynamic force drilling tool construction middle and upper part is normal as back-up tong.On the one hand, will be in work progress along with carrying or transfer continuous adjustment pipe wrench height on the tubing string.On the other hand, impact force is big during owing to the counter-rotating of top tubing string, is prone to the problem of generation secondary mechanical accidents such as tail rope is broken, pipe wrench comes off and personal injury.Both influence efficiency of construction, and brought new threat for inevitably again well head operative employee's personal safety.
Summary of the invention
The purpose of this utility model is to make a kind of dependable performance, safe and practical well workover tubing string anti kickback attachment, solves effectively in the use of hydrodynamic force drilling tool that tail rope is broken, pipe wrench comes off, and the problem of secondary mechanical accident and personal injury takes place.It is big to solve labor strength simultaneously, the problem that efficiency is low.
Technical solution of the present utility model is: well workover tubing string anti kickback attachment comprises mainboard and following mainboard, last mainboard and following mainboard are equipped with anti-inversion organization, when the top tubing string reverses by bolt in the inner chamber of last mainboard and following mainboard, instant chucking top tubing string prevents its reversing.
Compared with prior art, the utlity model has following useful effect: the utility model has adopted flanged connected mode, is directly installed on the well head before the use.Adopted complete closed formula structure and the jaw assembly method of clamping along ramp rotation climbing, clamping is reliable when guaranteeing the tubing string reversing; Adopt the pretension torsion spring, when counter-rotating appears in the top tubing string, can hold tubing string immediately tightly, prevented the tubing string reversing.The utlity model has good anti-reversing performance, safe and reliable, convenient and practical.Substitute pipe wrench with the utility model, can effectively prevent the security incident that the top tubing string counter-rotating in use of hydrodynamic force drilling tool causes.Tail rope is broken, pipe wrench comes off to be caused secondary mechanical accident and personal injury have been avoided.Simultaneously, the utility model does not need to adjust repeatedly height, has reduced working strength of workers, has improved efficiency of construction, has tangible economic benefit and social benefit.
Description of drawings
Fig. 1 is the sectional view of the utility model structural representation.
Fig. 2 be among Fig. 1 A-A to sectional view.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done further detailed description: referring to Fig. 1 and Fig. 2, well workover tubing string anti kickback attachment comprises mainboard 4 and following mainboard 6, last mainboard 4 and following mainboard 6 are fixing by bolt 1, in the inner chamber of last mainboard 4 and following mainboard 6 anti-inversion organization are housed.Anti-inversion organization comprises ramp 2, jaw plate frame 3, jaw assembly and pretension torsion spring 7, ramp 2 is fixed on the body wall of mainboard 4 and following mainboard 6 inner chambers, jaw plate frame 3 is installed in the inner chamber that is formed by ramp 2, jaw assembly symmetry is installed in the mounting groove of jaw plate frame 3, between jaw plate frame 3 and following mainboard 6 pretension torsion spring 7 is housed.Ramp 2 is that the inboard is provided with the domatic blocks of arc, and symmetry is fixed on the body wall of mainboard 4 and following mainboard 6 inner chambers.Jaw plate frame 3 is cylindrical body that cylindrical is provided with step, and upper step is provided with the adjusting lever connecting hole; Its underpart barrel jacket is contained in down in the interior circle of mainboard 6, and jaw assembly and pretension torsion spring 7 are installed between upper step and bottom cylindrical shell.The jaw assembly comprises jaw 8, roller 9 and slips 11, and roller 9 is fixed on jaw 8 by roller shaft 10 the outside contacts with the arc of ramp 2 is domatic; Slips 11 is fixed on the inboard of jaw 8, and the jaw assembly can radial motion in the mounting groove of jaw plate frame 3.Pretension torsion spring 7 drives jaw plate frame 3 and rotates, and jaw plate frame 3 drives the jaw assembly and does radial motion.The inboard of jaw 8 is provided with deep-slotted chip breaker slips 11 is installed; The inboard of slips 11 is provided with slip insert.The cylindrical of last mainboard 4 is provided with step, is provided with the adjusting lever sliding tray on the upper body of step, interior dress adjusting lever 5.End at the adjusting lever sliding tray is provided with bayonet socket, makes adjusting lever 5 location.Adjusting lever 5 is set in the adjusting lever sliding tray of mainboard 4 and is connected with the adjusting lever connecting hole of jaw plate frame 3.Pull adjusting lever 5 and can make jaw plate frame 3 drive the motion of jaw assembly, the interior latus rectum that slips 11 is formed enlarges or dwindles.
When the utility model uses, be connected on the well head four-way upper flange with two well head bolts.When normally making a trip, rotate adjusting lever 5 and be stuck in the bayonet socket, the jaw assembly is resetted, slips 11 reaches imperial palace latus rectum.
When using the hydrodynamic force drilling tool, pull adjusting lever 5, change the position of adjusting lever 5 in the adjusting lever sliding tray, the interior latus rectum of slips 11 is dwindled, be stuck on the tubing string of non-rotary top.When meeting down-hole bit bouncing, the counter-rotating of top tubing string, pretension torsion spring 7 promotes jaw plate frame 3 motions, makes the top tubing string of slips 11 chucking counter-rotatings, prevents top tubing string counter-rotating.When down-hole bit bouncing phenomenon disappeared, a whole set of operating tool string vibrated, and drove slips 11 revolutions, discharged operating tool string.
Claims (9)
1. well workover tubing string anti kickback attachment is characterized in that this device comprises mainboard (4) and following mainboard (6), and last mainboard (4) and following mainboard (6) are fixing by bolt (1), in the inner chamber of last mainboard (4) and following mainboard (6) anti-inversion organization are housed.
2. well workover tubing string anti kickback attachment according to claim 1, it is characterized in that anti-inversion organization comprises ramp (2), jaw plate frame (3), jaw assembly and pretension torsion spring (7), ramp (2) is fixed on the body wall of mainboard (4) and following mainboard (6) inner chamber, jaw plate frame (3) is installed in the inner chamber that is formed by ramp (2), jaw assembly symmetry is installed in the mounting groove of jaw plate frame (3), between jaw plate frame (3) and following mainboard (6) pretension torsion spring (7) is housed.
3. well workover tubing string anti kickback attachment according to claim 2 is characterized in that ramp (2) is that the inboard is provided with the domatic blocks of arc, and symmetry is fixed on the body wall of mainboard (4) and following mainboard (6) inner chamber.
4. well workover tubing string anti kickback attachment according to claim 2 is characterized in that jaw plate frame (3) is the cylindrical body that cylindrical is provided with step, and upper step is provided with the adjusting lever connecting hole; Its underpart barrel jacket is contained in down in the interior circle of mainboard (6), and jaw assembly and pretension torsion spring (7) are installed between upper step and bottom cylindrical shell.
5. according to claim 2 or 4 described well workover tubing string anti kickback attachments, it is characterized in that the jaw assembly comprises jaw (8), roller (9) and slips (11), roller (9) is fixed on the outside of jaw (8) and domatic contact of arc of ramp (2) by roller shaft (10), slips (11) is fixed on the inboard of jaw (8); The jaw assembly can radial motion in the mounting groove of jaw plate frame (3).
6. well workover tubing string anti kickback attachment according to claim 5 is characterized in that the inboard of jaw (8) is provided with deep-slotted chip breaker installation slips (11); The inboard of slips (11) is provided with slip insert.
7. well workover tubing string anti kickback attachment according to claim 1 is characterized in that the cylindrical of mainboard (4) is provided with step, is provided with the adjusting lever sliding tray on the upper body of step, interior dress adjusting lever (5).
8. well workover tubing string anti kickback attachment according to claim 7 is characterized in that adjusting lever (5) is set in the adjusting lever sliding tray of mainboard (4) to be connected with the adjusting lever connecting hole of jaw plate frame (3).
9. well workover tubing string anti kickback attachment according to claim 7 is characterized in that the end of described adjusting lever sliding tray is provided with bayonet socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205398120U CN201786275U (en) | 2010-09-17 | 2010-09-17 | Apparatus for preventing overturn of well workover pipe string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205398120U CN201786275U (en) | 2010-09-17 | 2010-09-17 | Apparatus for preventing overturn of well workover pipe string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201786275U true CN201786275U (en) | 2011-04-06 |
Family
ID=43818242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205398120U Expired - Fee Related CN201786275U (en) | 2010-09-17 | 2010-09-17 | Apparatus for preventing overturn of well workover pipe string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201786275U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103184840A (en) * | 2011-12-28 | 2013-07-03 | 中国石油天然气股份有限公司 | Tubular column pressurizing device |
| CN112796683A (en) * | 2019-11-14 | 2021-05-14 | 中国石油天然气股份有限公司 | Oil pipe rotation preventing device |
| CN113338825A (en) * | 2021-05-18 | 2021-09-03 | 如东前进石油机械制造有限公司 | Novel jaw plate device of sleeve clamp |
-
2010
- 2010-09-17 CN CN2010205398120U patent/CN201786275U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103184840A (en) * | 2011-12-28 | 2013-07-03 | 中国石油天然气股份有限公司 | Tubular column pressurizing device |
| CN103184840B (en) * | 2011-12-28 | 2015-08-19 | 中国石油天然气股份有限公司 | Tubing string water booster system |
| CN112796683A (en) * | 2019-11-14 | 2021-05-14 | 中国石油天然气股份有限公司 | Oil pipe rotation preventing device |
| CN113338825A (en) * | 2021-05-18 | 2021-09-03 | 如东前进石油机械制造有限公司 | Novel jaw plate device of sleeve clamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20110917 |