CN202767939U - Shut-in well device capable of achieving shut-in well under oil field well - Google Patents
Shut-in well device capable of achieving shut-in well under oil field well Download PDFInfo
- Publication number
- CN202767939U CN202767939U CN 201220450758 CN201220450758U CN202767939U CN 202767939 U CN202767939 U CN 202767939U CN 201220450758 CN201220450758 CN 201220450758 CN 201220450758 U CN201220450758 U CN 201220450758U CN 202767939 U CN202767939 U CN 202767939U
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- well
- shut
- positioning sleeve
- groove
- oil field
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Abstract
The utility model relates to a shut-in well device capable of achieving shut-in well under an oil field well, and belongs to the oil extracting field in an oil field. An upper connector of the shut-in well device is connected with an upper outer barrel. The upper outer barrel is connected with a coupling and a transposition mandrel in sequence. The transposition mandrel is connected with a seat sealing piston and a lower connector in sequence. A positioning sleeve is arranged on the outer wall of the lower section of the transposition mandrel in a sleeved mode. A positioning cap is arranged at the upper end of the positioning cap. A friction block is arranged inside an axial groove of the positioning sleeve. A spring is arranged between a clamping groove of the friction block and the positioning sleeve. A slip is arranged at the lower end of the positioning sleeve in a clamping mode. A spring is arranged between a clamping groove of the slip and the positioning sleeve. A cone body and a rubber barrel are arranged outside the seat sealing piston in a sleeved mode. A seat sealing pin is arranged between the seat sealing piston and the cone body. The shut-in well device can act on a target stratum under the well, and therefore the phenomena of blowout and overflow occurring in transporting holes of pipelines and the like are completely avoided. The environmental pollution is reduced.
Description
Technical field
The utility model relates to blowout preventer used to the oil gas well control in the oil extraction in oil field field, specifically with putting the blowout preventer of putting control on the oil pipe, this blowout preventer is applied in the oil tube conveying gun perforation device, carries a kind of blowout preventer of realizing shut-in well at oil field well that sets shut-in well to circle, oil reservoir top on can realizing behind the perforation.
Background technology
Blowout preventer is a kind of well-sealing device commonly used behind the oil well perforation, and the contaminated environment such as blowout and overflow occur when avoiding oil well to be produced.Existing shut-in well mode major part commonly used is that rotation sets and two kinds of forms of hydraulic setting, and rotation setting type shut-in well mode realizes shut-in well by machine power rotation tubing string; The hydraulic setting mode realizes shut-in well by pressurization in the oil pipe.Utilizing oil tube conveying gun perforation device perforation is one of effective method of oil gas field completion, and the method can be simplified construction technology, reducing construction cost.Yet, when carrying out high pressure block oil tube conveying gun perforation device perforation completion, oil pipe and perforating gun being tripped out in the process, two kinds of above-mentioned shut-in well modes are shunt in a well after directly applying to oil tube conveying gun perforation device perforation, the phenomenons such as blowout and overflow can occur, contaminated environment.
Summary of the invention
For fear of the phenomenons such as blowout and overflow occur behind oil tube conveying gun perforation device perforation, originally be to provide a kind of blowout preventer of shunting in a well realized at oil field well with novel.This blowout preventer can be enclosed in the down-hole target zone, avoids the phenomenons such as the blowout that occurs and overflow fully in oil tube conveying gun perforation, environmental contamination reduction.
The technical solution of the utility model is: a kind of blowout preventer of realizing shut-in well at oil field well, comprise top connection and lower contact, wherein, described top connection connects upper urceolus, upper urceolus is connection coupling and transposition mandrel successively, and the transposition mandrel connects setting piston and lower contact successively; Described transposition mandrel hypomere outer wall suit positioning sleeve, the upper end of positioning sleeve is equipped with positioning cap, and the axial groove of positioning sleeve is built-in with brake pad, is equipped with spring between the draw-in groove of brake pad and positioning sleeve, the positioning sleeve lower end clamps slips, is equipped with spring between the draw-in groove of slips and positioning sleeve; Described setting piston jacket dress centrum and packing element are equipped with setting pin between setting piston and centrum.
Draw-in groove on described brake pad and the slips is radial equipartition; The external surface of described transposition mandrel has the transposition groove.
The utlity model has following beneficial effect: owing to adopting technique scheme, utilize oil pipe with this blowout preventer and perforating gun down to the down-hole purpose degree of depth, by caber in ground pressurization or the oil pipe in the oil pipe, perforating gun is detonated, when penetrating out target layer, by on put drain line, slips on this blowout preventer and packing element are fixed on tube inner wall firmly, this blowout preventer can be enclosed in the down-hole target zone, thereby the phenomenons such as the blowout that solution occurs in oil tube conveying gun perforation and overflow, environmental contamination reduction.This blowout preventer also can be used in inclined shaft, horizontal well and shallow well oil tube conveying gun perforation.
Description of drawings:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that the utility model is applied to the connection diagram in the oil tube conveying gun perforation.
1-top connection among the figure, the upper urceolus of 2-, 3-box cupling, the 4-mandrel that replaces, 5-positioning cap, 6-positioning sleeve, 7-spring, 8-brake pad, 9-centrum, the setting pin of 10-, the setting piston of 11-, 12-packing element, 13-lower contact, 14-slips, 15-oil pipe.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
By Figure 1 and Figure 2, this oil field well is realized the blowout preventer of shut-in well, comprises top connection 1 and lower contact 13, wherein, the described top connection upper urceolus 2 that is threaded, upper urceolus 2 be threaded successively box cupling 3 and transposition mandrel 4, transposition mandrel 4 connects setting piston 11 and lower contact 13 successively; Described transposition mandrel 4 hypomere outer walls suit positioning sleeve 6, the upper end of positioning sleeve 6 is equipped with positioning cap 5, the axial groove of positioning sleeve 6 is built-in with, 6 of draw-in groove on the brake pad 8 and positioning sleeves are equipped with spring 7, make the radially generation elastic force of spring 7 relative positionings cover 6, positioning sleeve 6 lower ends get and clamp slips 14 upper ends in the annular groove, and 6 of the draw-in groove of slips 14 and positioning sleeves also are equipped with spring 7; Described setting piston 11 outer walls suit centrum 9 and packing element 12, centrum 9 are upper, and packing element 12 is lower, and the male cone (strobilus masculinus) on centrum 9 tops moves with the inner face of vertebra slips 14 and cooperates, and 9 of setting piston 11 and cones are equipped with setting pin 10, as shown in Figure 1.
Draw-in groove on described brake pad 8 and the slips 14 is radial equipartition; The external surface of described transposition mandrel 4 has groove.Move on positioning cap 5, positioning sleeve 6, spring 7, brake pad 8 and the slips 14 when going into the well, be stuck in the groove, make brake pad 8 reduced, go into the well smoothly; In the time of need to setting, the upper body oil pipe, setting pin 10 is cut off, and positioning cap 5, positioning sleeve 6, spring 7, brake pad 8 and slips 14 move down, and the inner conical surface of slips 14 bottoms is opened by the support of centrum 9, is anchored on the internal surface of sleeve pipe.
During shut-in well, in advance with oil pipe 15, perforating gun and this blowout preventer enter well as shown in Figure 2 after connecting, by oil pipe 15 pressurization of interior ground or oil pipe 15 interior cabers, perforating gun is detonated, penetrate out target layer, carrying oil pipe 15 again makes this blowout preventer to penetrating out circle, layer top, by on the slips 14 that puts on the drain line 15 control blowout preventers set in internal surface of sleeve pipe, simultaneously by on carry or lower drain line control card watts 14, upper lifting pipe post slips 14 is descending, realizes grappling under the support of centrum 9, simultaneously packing element 12 compressed expansions, set in internal surface of sleeve pipe, realize the purpose of sealing bottom target zone fluid.
Claims (3)
1. blowout preventer of realizing shut-in well at oil field well, comprise top connection (1) and lower contact (13), it is characterized in that: urceolus (2) in described top connection (1) connection, upper urceolus (2) is connection coupling (3) and transposition mandrel (4) successively, and transposition mandrel (4) connects setting piston (11) and lower contact (13) successively; Described transposition mandrel (4) hypomere outer wall suit positioning sleeve (6), the upper end of positioning sleeve (6) is equipped with positioning cap (5), the axial groove of positioning sleeve (6) is built-in with brake pad (8), be equipped with spring (7) between the draw-in groove of brake pad (8) and positioning sleeve (6), positioning sleeve (6) lower end clamps slips (14), is equipped with spring (7) between the draw-in groove of slips (14) and positioning sleeve (6); Described setting piston (11) outer suit centrum (9) and packing element (12) are equipped with setting pin (10) between setting piston (11) and centrum (9).
2. the blowout preventer of realizing shut-in well at oil field well according to claim 1 is characterized in that: described brake pad (8) is radial equipartition with draw-in groove on the slips (14).
3. the blowout preventer of realizing shut-in well at oil field well according to claim 1, it is characterized in that: the external surface of described transposition mandrel (4) has groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220450758 CN202767939U (en) | 2012-09-06 | 2012-09-06 | Shut-in well device capable of achieving shut-in well under oil field well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220450758 CN202767939U (en) | 2012-09-06 | 2012-09-06 | Shut-in well device capable of achieving shut-in well under oil field well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202767939U true CN202767939U (en) | 2013-03-06 |
Family
ID=47774522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220450758 Expired - Fee Related CN202767939U (en) | 2012-09-06 | 2012-09-06 | Shut-in well device capable of achieving shut-in well under oil field well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202767939U (en) |
-
2012
- 2012-09-06 CN CN 201220450758 patent/CN202767939U/en not_active Expired - Fee Related
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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: 20130306 Termination date: 20130906 |