CN201857924U - Slip clamping type blowout preventer for sucker rod - Google Patents
Slip clamping type blowout preventer for sucker rod Download PDFInfo
- Publication number
- CN201857924U CN201857924U CN2010205968849U CN201020596884U CN201857924U CN 201857924 U CN201857924 U CN 201857924U CN 2010205968849 U CN2010205968849 U CN 2010205968849U CN 201020596884 U CN201020596884 U CN 201020596884U CN 201857924 U CN201857924 U CN 201857924U
- Authority
- CN
- China
- Prior art keywords
- slips
- locking
- slip
- sucker rod
- die cavity
- 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
- Buffer Packaging (AREA)
Abstract
The utility model provides a slip clamping type blowout preventer for a sucker rod, which comprises a single-flashboard sucker rod blowout preventer body comprising a body and a single-flashboard assembly, and a slip locking assembly comprising slips, a slip seat, slip locking shafts, slip side doors, a slip locking lead screw, slip locking glands, locking bolts and a limiting nut. Slip-shaped cavities, in which slips are arranged, are symmetrically arranged at the both sides of a main through path of the body. The outer sides of the slip-shaped cavities are sequentially provided with the slip side doors and the slip locking glands. The slip locking shafts are arranged in the working gaps reserved at the outer sides of the slip side doors. The inner ends of the slip locking shafts are connected with the slips, and the outer ends of the slip locking shafts are provided with limiting bosses. The inner end of the slip locking lead screw is connected with the slip locking shafts, and the outer end of the slip locking lead screw is provided with the limiting nut. A plurality of locking bolts are arranged on the slip locking glands. The slip clamping type blowout preventer for the sucker rod has reasonable structure, can obviously enhance the locking effect to the sucker rod, effectively prevents the sucker rod from jumping up and falling into the well bottom and prevents leakage, therefore, the security and reliability of the blowout preventer are improved.
Description
Technical field
The utility model belongs to the petroleum machinery technical field, specifically, relates to a kind of slips clamped-in style sucker rod preventer.
Background technology
In the operation and well workover process of pumpingh well, tripping out through regular meeting of sucker rod produces the phenomenon that well kick overflow, sucker rod are scurried out and hurted sb.'s feelings, even contingency such as blowout takes place, and for guaranteeing the safety of constructor and equipment, adopts the sucker rod preventer usually.Can existing sucker rod preventer, be generally the single disc structure, its clamp and sealing performance limited, when borehole pressure was big, sucker rod is play up and down, even falls in the well, not only salvaging sucker rod wastes time and energy, and influence is produced, and the more important thing is that security reliability is low.At present, although also there is the sucker rod preventer that has clamp mechanism to appear on the market, because structure is limit, to the coupling mechanism force deficiency of sucker rod, thereby its security reliability remains further to be improved.
The utility model content
For overcoming the deficiencies in the prior art, the utility model provides a kind of rational in infrastructure, slips clamped-in style sucker rod preventer that security reliability is strong.
The technical scheme that its technical problem that solves the utility model adopts is: comprise the single disc sucker rod preventer that contains body and single disc assembly, be provided with to the main latus rectum bilateral symmetry of body half envelope flashboard die cavity, two cover single disc assemblies are sub-packed in above-mentioned partly the envelope in the flashboard die cavity; It is characterized in that: also comprise the slips locking assembly that contains slips, slip spider, slips lock shaft, slips side door, slips locking leading screw, slips locking gland, lock bolt and stop nut; Also be provided with the slips die cavity symmetrically in the body master latus rectum both sides of partly sealing flashboard die cavity top, slips places in the slips die cavity, and the outside of slips die cavity is equipped with slips side door and slips locking gland successively; The work space that the slips lock shaft places the slips side door outside to be reserved, the inner of slips lock shaft is passed the slips side and is linked to each other with slips; The outer end of slips lock shaft is provided with positive stop lug boss; The inner of slips locking leading screw is passed slips locking gland and is linked to each other with the slips lock shaft, and the outer end of slips locking leading screw is provided with stop nut; On slips locking gland, several lock bolts that hold out against slips lock shaft outer face are housed.
Above-mentioned slips is the smooth anodontia slips of intrados, traditional has the tooth slips can cause the sucker rod surface damage when the locking sucker rod to solve, influence preventer and seal well head, cause problems such as blowout and contaminated environment.
Be equipped with back-moving spring on the slips locking leading screw between above-mentioned stop nut and the slips locking gland, when unclamping above-mentioned stop nut and lock bolt, slips and slips lock shaft resetted rapidly.
The beneficial effects of the utility model are: it is rational in infrastructure, locking effect to sucker rod significantly strengthens, substantially exceed sucker rod deadweight in the well, prevented effectively sucker rod on scurry, fall into the generation of shaft bottom and leakage phenomenon, improved the security reliability of preventer.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Among the figure: 1 for slips, 2 for slip spider, 3 for slips lock shaft, 3-1 be positive stop lug boss, 4 for slips side door, 4-1 be the working clearance, 5 for slips locking leading screw, 6 for slips locking gland, 7 for lock bolt, 8 for back-moving spring, 9 for stop nut, 10 for body, 11 be that half envelope flashboard, 12 is that half blockade mandrel, 13 is that half envelope side door, 14 is that half sealed cover, 15 is the tight leading screw of half blockade.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Slips clamped-in style sucker rod preventer described in the utility model based on existing single disc sucker rod preventer, has been set up slips locking assembly.As shown in Figure 1, described single disc sucker rod preventer comprises body 10 and partly seals the flashboard assembly; Be provided with to the main latus rectum bilateral symmetry of body 10 half envelope flashboard die cavity.Described partly seal the flashboard assembly comprise half envelope flashboard 11, partly block mandrel 12, partly seal side door 13, half sealed cover 14 and partly block tight leading screw 15; Two halves envelope flashboard 11 is sub-packed in the two halves envelope flashboard die cavity, and half envelope side door 13 and half sealed cover 14 are housed successively in the outside of partly sealing the flashboard die cavity; Partly block the inner of mandrel 12 and partly seal flashboard 11 and link to each other, its outer end with partly block tight leading screw 15 and link to each other.Described slips locking assembly comprises slips 1, slip spider 2, slips lock shaft 3, slips side door 4, slips locking leading screw 5, slips locking gland 6, lock bolt 7, spring 8 and stop nut 9; Also be provided with the slips die cavity symmetrically in the body 10 main latus rectum both sides of partly sealing flashboard die cavity top; Slips 1 places in the slips die cavity, and this slips 1 is the smooth anodontia slips of intrados; The outside of slips die cavity is equipped with slips side door 4 and slips locking gland 6 successively; The work space 4-1 that slips lock shaft 3 places slips side door 4 outsides to reserve, the inner of slips lock shaft 3 is passed slips side door 4, is also linked to each other with slips 1 by slip spider 2; The outer end of slips lock shaft 3 is provided with positive stop lug boss 3-1; The inner of slips locking leading screw 5 is passed slips locking gland 6 and is linked to each other with slips lock shaft 3, and the outer end of slips locking leading screw 5 is provided with back-moving spring 8 and stop nut 9; On slips locking gland 6, be equipped with four or the six roots of sensation is equally distributed, can hold out against the lock bolt 7 of slips lock shaft 3 outer faces.
During use, at first the utility model is installed on the well head of oil well.Trip out in the process carrying out sucker rod, two slips 1 are in released state, phenomenon such as push up on the well kick overflow of finding, sucker rod, in the time of may producing the blowout accident, rotate two halves rapidly and block tight leading screw 15, make two halves envelope flashboard 11 to main latus rectum central motion, hold sucker rod tightly, well head is sealed; Rotate slips locking leading screw 5 more rapidly, hold two slips 7 tightly sucker rod, then lock bolt 7 is tightened, prop up slips lock shaft 3, make two slips 1 firmly lock sucker rod thereby tighten stop nut 9 again.And when needs unclamp sucker rod, then unscrew stop nut 9 and lock bolt 7 successively, slips 1 and slips lock shaft 3 reset rapidly under the effect of back-moving spring 8.
Claims (3)
1. slips clamped-in style sucker rod preventer comprises the single disc sucker rod preventer that contains body and single disc assembly, is provided with to the main latus rectum bilateral symmetry of body half envelope flashboard die cavity, and two cover single disc assemblies are sub-packed in above-mentioned partly the envelope in the flashboard die cavity; It is characterized in that: also comprise the slips locking assembly that contains slips, slip spider, slips lock shaft, slips side door, slips locking leading screw, slips locking gland, lock bolt and stop nut; Also be provided with the slips die cavity symmetrically in the body master latus rectum both sides of partly sealing flashboard die cavity top, slips places in the slips die cavity, and the outside of slips die cavity is equipped with slips side door and slips locking gland successively; The work space that the slips lock shaft places the slips side door outside to be reserved, the inner of slips lock shaft is passed the slips side and is linked to each other with slips; The outer end of slips lock shaft is provided with positive stop lug boss; The inner of slips locking leading screw is passed slips locking gland and is linked to each other with the slips lock shaft, and the outer end of slips locking leading screw is provided with stop nut; On slips locking gland, several lock bolts that hold out against slips lock shaft outer face are housed.
2. slips clamped-in style sucker rod preventer according to claim 1 is characterized in that: above-mentioned slips is the smooth anodontia slips of intrados.
3. slips clamped-in style sucker rod preventer according to claim 1 is characterized in that: be equipped with back-moving spring on the slips locking leading screw between above-mentioned stop nut and the slips locking gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205968849U CN201857924U (en) | 2010-11-01 | 2010-11-01 | Slip clamping type blowout preventer for sucker rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205968849U CN201857924U (en) | 2010-11-01 | 2010-11-01 | Slip clamping type blowout preventer for sucker rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201857924U true CN201857924U (en) | 2011-06-08 |
Family
ID=44103734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205968849U Expired - Fee Related CN201857924U (en) | 2010-11-01 | 2010-11-01 | Slip clamping type blowout preventer for sucker rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201857924U (en) |
-
2010
- 2010-11-01 CN CN2010205968849U patent/CN201857924U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103470214B (en) | Multistage hydraulic bridging plug seating and sealing unit | |
| CN102678072B (en) | Torque-bearing slip assembly for continuous circulation systems | |
| CN201771464U (en) | Slip combined oil pumping rod blowout preventer | |
| CN110284851A (en) | A kind of Ram Preventer Hydraulic Locking Device | |
| CN201857924U (en) | Slip clamping type blowout preventer for sucker rod | |
| CN102400656A (en) | Double-seal integrated blowout preventer | |
| CN102465677A (en) | Slip clamping type sucker rod blowout preventer | |
| CN201874510U (en) | High-pressure resistant sucker-rod blowout preventer | |
| CN206545496U (en) | It is a kind of to be applied to packer, the buttless thread lock ring of bridging plug | |
| CN218494252U (en) | Two-way pressure balance type cock valve opening mechanism | |
| CN202273635U (en) | Climbing type reducing blowout preventer | |
| CN201747318U (en) | Side door hydraulic cylinder of hydraulic flashboard blowout preventer | |
| CN202300298U (en) | Double-sealing integral blowout preventer | |
| CN201883989U (en) | Shearing full-closed ram blowout preventer having clamping function | |
| CN2176427Y (en) | Locking casinghead | |
| CN101660395A (en) | Manual multifunctional thermal production blowout preventer | |
| CN201747288U (en) | Thermal recovery slip type casing head | |
| CN212508188U (en) | Sealing plug suitable for electric pump thermal recovery well head | |
| CN201963242U (en) | Latch-type blowout preventer | |
| CN201705229U (en) | Safety joint of expandable casing | |
| CN111963558B (en) | Bolt group not easy to loosen | |
| CN204877362U (en) | Area pressure of not giving up is traded valve hydraulic pressure seat formula of sealing and is blockked up instrument | |
| CN211901243U (en) | Locknut structure with screw pitch difference | |
| CN203895052U (en) | Novel lead seal | |
| CN201334887Y (en) | Blowout prevention device for downhole operation in oil-gas well |
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: 20110608 Termination date: 20131101 |