CN2500795Y - Lock ball type anti-impacting oil well head sealer - Google Patents
Lock ball type anti-impacting oil well head sealer Download PDFInfo
- Publication number
- CN2500795Y CN2500795Y CN 01250721 CN01250721U CN2500795Y CN 2500795 Y CN2500795 Y CN 2500795Y CN 01250721 CN01250721 CN 01250721 CN 01250721 U CN01250721 U CN 01250721U CN 2500795 Y CN2500795 Y CN 2500795Y
- Authority
- CN
- China
- Prior art keywords
- sealing
- lock ball
- sleeve
- sliding sleeve
- well head
- 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
- Pivots And Pivotal Connections (AREA)
Abstract
The utility model relates to a lock ball type anti-impacting oil dredging well head sealing device, which relates to a sealing device for an oil well head. The upper end surface of a sealing sleeve (5) is fixedly connected with a bottom plate (1-1) of a sealing box (1), and the lower end surface of the sealing sleeve is fixedly provided with a baffle ring (11); a sliding sleeve (3) is arranged in the inner wall of the lower part of the sealing sleeve; a spring (2) is arranged between the sliding sleeve and the bottom plate of the sealing box; an outer sleeve is arranged on an outer cylinder of the sealing sleeve; the outer wall of the sliding sleeve is provided with a pit (7); a lock ball (4) is arranged in a hole on the side wall of the sealing sleeve, and the inner wall of the outer sleeve is provided with a pit (9). The device uses the action of spring force to make the lock ball conveniently connect the sealing box with the well head; when a bailing pump is upwards lifted, the spring force is overcome, the sealing sleeve and the outer sleeve can be immediately disengaged; accordingly, the utility model can prevent the accidents that a pump is stricken down and a steel cable is broken because of plug strike, the safe coefficient is improved, and the work efficiency is improved by more than 30 percents.
Description
Technical field: the utility model relates to a kind of well mouth of oil well sealing device.
Background technology: existing bailing well sealing device seal box is to adopt screw thread or shear pin rigidity to be formed by connecting with being connected of well head, thereby when dragging for oil pump and mention well head, often hit the plug phenomenon because of the error of depth recorder table or factor such as artificial, and cause the powerful impact force of dragging for oily equipment over the ground, even knock pump and sever wire rope and the serious accident of damage drive disk assembly, make and exist unsafe factor in the production.
Summary of the invention: the utility model is to be connected with the well head rigidity and to cause the shortcoming that impact force is big at seal box, studies the crashproof bailing well mouth sealing device of a kind of lock ball formula, the generation that makes it can avoid large impact power to cause knocking pump and sever the wire rope accident.The utility model includes spring 2, sliding sleeve 3, lock ball 4, sealing shroud 5, overcoat 6, fixedly connected with the base plate 1-1 of seal box 1 in the upper surface of sealing shroud 5, baffle ring 11 is being fixed in the lower surface of sealing shroud 5, sliding sleeve 3 is arranged in the inwall of sealing shroud 5 bottoms, spring 2 is arranged between the base plate 1-1 of sliding sleeve 3 and seal box 1, overcoat 6 is arranged on the outside cylinder of sealing shroud 5, sealing shroud 5 is to be slidingly connected with sliding sleeve 3, the outer wall of sliding sleeve 3 is provided with pit 7, lock ball 4 is arranged in the hole 8 on sealing shroud 5 sidewalls, and the inwall of overcoat 6 is provided with pit 9.This device utilizes the effect of spring force that lock ball is connected seal box easily with well head, overcome spring force and on bailing pump, carry, lock ball is returned at recessed anti-7 o'clock, sealing shroud and overcoat just can separate at once, thereby the utility model can be avoided hitting plug and knocking pump and severing the generation of wire rope accident of causing, and has improved safety factor, shorten and drag for the oil time, can improve work efficiency more than 30%.
Structural representation when the structural representation when description of drawings: Fig. 1 is the utility model lock-out state, Fig. 2 are the utility model open mode.
The specific embodiment: present embodiment is made up of end joint 10 on wire rope seal box 1, spring 2, sliding sleeve 3, lock ball 4, sealing shroud 5, overcoat 6, the well head.Fixedly connected with the base plate 1-1 on the seal box 1 in the upper surface of sealing shroud 5, baffle ring 11 is being fixed in the lower surface of sealing shroud 5, sliding sleeve 3 is arranged in the inwall of sealing shroud 5 bottoms, spring 2 is arranged between the base plate 1-1 of sliding sleeve 3 and seal box 1, overcoat 6 is arranged on the outside cylinder of sealing shroud 5, and sealing shroud 5 is to be slidingly connected with sliding sleeve 3, and the outer wall of sliding sleeve 3 is provided with pit 7, lock ball 4 is arranged in the hole 8 on sealing shroud 5 sidewalls, and the inwall of overcoat 6 is provided with pit 9.The outer wall of sealing shroud 5 is provided with sealing ring 12, fixedlys connected with end joint 10 on the well head in the lower end of overcoat 6.When this device was in the lock state, lock ball 4 placed between hole 8 and the pit 9.When this device was in open mode, lock ball 4 placed between hole 8 and the pit 7.
When bailing pump 13 during down to the down-hole, the elastic force of spring 2 moves down sliding sleeve 3, lock ball 4 is released pit 7, and enter in the pit 9 of overcoat 6, and block lock ball 4 and return, at this moment realize between overcoat 6 and the sealing shroud 5 that lock ball connects, be in the lock state this moment, and lock ball 4 places between hole 8 and the pit 9, because sealing shroud 5 is fixedlyed connected with the base plate 1-1 on the seal box 1, end joint 10 is to fixedly connected on overcoat 6 and the well head, and reality has realized that seal box 1 is connected with the lock ball formula of well head.When carry on the bailing pump 13 run into sliding sleeve 3 to well head and continue on carry and when overcoming the elastic force of spring 2, bailing pump 13 will promote to move on the sliding sleeve 3, lock ball 4 returns in the pit 7 on the sliding sleeve 3, at this moment overcoat 6 separates at once with sealing shroud 5, be in open mode this moment, lock ball 4 places between hole 8 and the pit 7, thereby has avoided the generation of large impact power.
Claims (5)
1, the crashproof bailing well mouth sealing device of lock ball formula, it is characterized in that it includes spring (2), sliding sleeve (3), lock ball (4), sealing shroud (5), overcoat (6), fixedly connected with the base plate (1-1) of seal box (1) in the upper surface of sealing shroud (5), baffle ring (11) is being fixed in the lower surface of sealing shroud (5), sliding sleeve (3) is arranged in the inwall of sealing shroud (5) bottom, spring (2) is arranged between the base plate (1-1) of sliding sleeve (3) and seal box (1), overcoat (6) is arranged on the outside cylinder of sealing shroud (5), sealing shroud (5) is to be slidingly connected with sliding sleeve (3), the outer wall of sliding sleeve (3) is provided with pit (7), lock ball (4) is arranged in the hole (8) on sealing shroud (5) sidewall, and the inwall of overcoat (6) is provided with pit (9).
2, the crashproof bailing well mouth sealing device of lock ball formula according to claim 1 is characterized in that the lower end of overcoat (6) fixedlys connected with end joint (10) on the well head.
3, the crashproof bailing well mouth sealing device of lock ball formula according to claim 1 is characterized in that the outer wall of sealing shroud (5) is provided with sealing ring (12).
4, the crashproof bailing well mouth sealing device of lock ball formula according to claim 1, when it is characterized in that this device is in the lock state, lock ball (4) places between hole (8) and the pit (9).
5, the crashproof bailing well mouth sealing device of lock ball formula according to claim 1, when it is characterized in that this device is in open mode, lock ball (4) places between hole (8) and the pit (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01250721 CN2500795Y (en) | 2001-09-14 | 2001-09-14 | Lock ball type anti-impacting oil well head sealer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01250721 CN2500795Y (en) | 2001-09-14 | 2001-09-14 | Lock ball type anti-impacting oil well head sealer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2500795Y true CN2500795Y (en) | 2002-07-17 |
Family
ID=33660809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01250721 Expired - Fee Related CN2500795Y (en) | 2001-09-14 | 2001-09-14 | Lock ball type anti-impacting oil well head sealer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2500795Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112922556A (en) * | 2021-03-04 | 2021-06-08 | 李青 | Double-automatic wellhead butt joint device for bailing vehicle |
-
2001
- 2001-09-14 CN CN 01250721 patent/CN2500795Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112922556A (en) * | 2021-03-04 | 2021-06-08 | 李青 | Double-automatic wellhead butt joint device for bailing vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201486515U (en) | Switch type releasing packer | |
| CN201620796U (en) | Fishing tool for downhole choke | |
| CN204609817U (en) | Multi-functional well logging salvaging instrument | |
| CN209212195U (en) | Tool is hit under a kind of hydraulic vibration | |
| CN103541697B (en) | Anti-sliding single rubber barrel underground throttling device | |
| CN2500795Y (en) | Lock ball type anti-impacting oil well head sealer | |
| CN109779538B (en) | Petroleum downhole operation device | |
| CN109538134B (en) | Application method of petroleum underground safety joint | |
| CN202531096U (en) | Wall-hook packer for horizontal well fracturing | |
| CN110374571A (en) | Well cementation well completion tubular column toe end sliding sleeve | |
| CN201649085U (en) | Riser piling operating device for offshore drilling | |
| CN209339883U (en) | Hydraulic pressure lasts restriction type flow controller deblocking instrument of being of a specified duration | |
| CN208416479U (en) | Combined fishing tool of fishing device and plug | |
| CN204782893U (en) | Mechanical fluid pressure type drilling jar of two effects | |
| CN103452512B (en) | Ground hydraulic super jar | |
| CN202745781U (en) | Fishing tool for natural gas exploitation underground throttler | |
| CN2923986Y (en) | Self-sliding type underground fishing tool | |
| CN212003099U (en) | Can move back formula list slider and drag for lance | |
| CN103089229B (en) | Can acid fracturing pipe column ball seat capable of fishing and being used repeatedly | |
| CN207538779U (en) | The device that a kind of drilling machine is connect with diesel pile hammer | |
| CN202926269U (en) | Pressuring up-pull double-core-catcher combination coring tool | |
| CN202441295U (en) | Safety pressure relief device for pipe column | |
| CN207750058U (en) | Reversible fishing anchor | |
| DE60215929D1 (en) | rammer | |
| CN211524749U (en) | Unhooking-proof underground cable fishing tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |