CN105298428A - Single-screw self-shearing high temperature well sealer - Google Patents
Single-screw self-shearing high temperature well sealer Download PDFInfo
- Publication number
- CN105298428A CN105298428A CN201510593855.4A CN201510593855A CN105298428A CN 105298428 A CN105298428 A CN 105298428A CN 201510593855 A CN201510593855 A CN 201510593855A CN 105298428 A CN105298428 A CN 105298428A
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- leading screw
- flashboard
- left end
- thread section
- mobile leading
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Abstract
The invention discloses a single-screw self-shearing high temperature well sealer functional in quickly and automatically sharing a cable or steel cable and finishing well self-sealing, comprising a body. A left plate is disposed at the left end of the body, a right plate is disposed at the right end of the body. A rotating screw is rotatably disposed inside the left plate through a bearing and a locknut. The rotating screw is provided with a spring and a slider. The left end of the spring is abutted to the rotating screw, the right end of the spring is abutted to the left end of the slider, the right end of the slider is fitted to a locking groove in the left end of the moving screw, the moving screw is provided with three threads, the first left-hand thread is disposed at the left end of the moving screw, the right-hand thread is disposed in the middle of the moving screw, the second left-hand thread is disposed at the right end of the moving screw, the left end of the moving screw is disposed inside the rotating screw, the middle of the moving screw is disposed inside an elongated nut, and the left side of the elongated nut is connected with a screw spacer.
Description
Technical field
The present invention relates to a kind of drilling equipment, particularly relate to a kind of horizontal bar self cleavage formula high temperature blowout preventer.
Background technology
Blowout preventer is the key component of well control device, be mainly used in drilling well, recover the oil, the drillstem test of formation testing and the underground work of new well perforation, oil salvage operation etc., control well mouth pressure in operation, effectively prevent the generation of gas blowout accident, blowout preventer must be housed to demonstrate,prove the safety ensureing operating personnel and equipment, blowout preventer can use cable or guy wire when carrying out dragging for wet goods underground work, need to use increase cutter sweep in addition to cut cable or guy wire in use procedure, inconvenient operation, this is more and more higher to the requirement of blowout preventer, configure too high but cost is also high, complicated operation.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of and fast automaticly can complete the horizontal bar self cleavage formula high temperature blowout preventer shearing cable or guy wire, the certainly function of shut-in well.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: horizontal bar self cleavage formula high temperature blowout preventer, comprise: main body, the left end of described main body is provided with left plate, the right-hand member of main body is provided with right plate, rotated by bearing and lock nut in described left plate and be provided with rotating threaded shaft, described rotating threaded shaft is provided with spring and slide block, left end and the rotating threaded shaft of spring offset, the right-hand member of spring and the left end of slide block offset, the right-hand member of slide block matches with the draw-in groove be arranged on mobile leading screw left end, described mobile leading screw is provided with three sections of screw threads, what be arranged on mobile leading screw left end is the first left-handed thread section, be arranged in the middle part of mobile leading screw for right-handed thread section, what be arranged on mobile leading screw right-hand member is the second left-handed thread section, escape is respectively arranged with between first left-handed thread section and right-handed thread section and between right-handed thread section and the second left-handed thread section, the left end of mobile leading screw is arranged in rotating threaded shaft, be arranged in bar shaped nut in the middle part of mobile leading screw, leading screw spacer is connected with in the left side of described bar shaped nut, connecting bolt is connected with on the right side of described bar shaped nut, be provided with attaching nut on the right side of connecting bolt and shear right flashboard, the right flashboard of described shearing cooperatively interacts with the left flashboard of shearing, the left flashboard of described shearing is arranged on the right side of elevated-temperature seal flashboard, the square nut that passes on left of elevated-temperature seal flashboard is connected with the right-hand member of mobile leading screw.
Advantage of the present invention is: above-mentioned horizontal bar self cleavage formula high temperature blowout preventer, the positive and negative screw thread making full use of leading screw has moved back and forth the function of fast automatic shearing cable or guy wire, certainly shut-in well, high temperature resistant, corrosion-resistant, good seal performance, reduce labour intensity and operating cost, increase work efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of horizontal bar self cleavage formula high temperature blowout preventer open mode of the present invention.
Fig. 2 is the structural representation of horizontal bar self cleavage formula high temperature blowout preventer shearing condition of the present invention.
Fig. 3 is the structural representation of horizontal bar self cleavage formula high temperature blowout preventer of the present invention shut-in well state.
Fig. 4 is the structural representation of the thread rotary orientation of mobile leading screw in horizontal bar self cleavage formula high temperature blowout preventer of the present invention.
In figure: 1, main body, 2, left plate, 3, right plate, 4, bearing, 5, lock nut, 6, rotating threaded shaft, 7, spring, 8, slide block, 9, mobile leading screw, the 91, first left-handed thread section, 92, right-handed thread section, the 93, second left-handed thread section, 94, escape, 10, draw-in groove, 11, bar shaped nut, 12, leading screw spacer, 13, connecting bolt, 14, attaching nut, 15, shear right flashboard, 16, shear left flashboard, 17, elevated-temperature seal flashboard, 18, square nut, 19, wellhead flange, 20, well head.
Detailed description of the invention
Particular content of the present invention is described in detail below in conjunction with the drawings and specific embodiments.
As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4, horizontal bar self cleavage formula high temperature blowout preventer, comprise: main body 1, the left end of described main body 1 is provided with left plate 2, the right-hand member of main body 1 is provided with right plate 3, rotated by bearing 4 and lock nut 5 in described left plate 2 and be provided with rotating threaded shaft 6, described rotating threaded shaft 6 is provided with spring 7 and slide block 8, left end and the rotating threaded shaft 6 of spring 7 offset, the right-hand member of spring 7 and the left end of slide block 8 offset, the right-hand member of slide block 8 matches with the draw-in groove 10 be arranged on mobile leading screw 9 left end, described mobile leading screw 9 is provided with three sections of screw threads, what be arranged on mobile leading screw 9 left end is the first left-handed thread section 91, be arranged in the middle part of mobile leading screw 9 for right-handed thread section 92, what be arranged on mobile leading screw 9 right-hand member is the second left-handed thread section 93, escape 94 is respectively arranged with between first left-handed thread section 91 and right-handed thread section 92 and between right-handed thread section 92 and the second left-handed thread section 93, the left end of mobile leading screw 9 is arranged in rotating threaded shaft 6, be arranged in the middle part of mobile leading screw 9 in bar shaped nut 11, leading screw spacer 12 is connected with in the left side of described bar shaped nut 11, connecting bolt 13 is connected with on the right side of described bar shaped nut 11, be provided with attaching nut 14 on the right side of connecting bolt 13 and shear right flashboard 15, the right flashboard of described shearing 15 cooperatively interacts with the left flashboard 16 of shearing, the left flashboard 16 of described shearing is arranged on the right side of elevated-temperature seal flashboard 17, the square nut 18 that passes on left of elevated-temperature seal flashboard 17 is connected with the right-hand member of mobile leading screw 9.
The operating principle of above-mentioned horizontal bar self cleavage formula high temperature blowout preventer is: as shown in Figure 2, manual rotation spanner is utilized to turn clockwise rotating threaded shaft 6, slide block 8 pushes in the draw-in groove 10 of the left end of mobile leading screw 9 by the spring 7 in rotary screw 6, together with rotating threaded shaft 6 is combined into mobile leading screw 9 by slide block 8.Namely the rotating threaded shaft 6 mobile leading screw 9 that turns clockwise turns clockwise simultaneously, now rotating threaded shaft 6 inner joining threads does not promote the side-to-side movement of mobile leading screw 9, because mobile leading screw 9 turns clockwise under rotating threaded shaft 6 drives, because bar shaped nut 11 is right-handed thread movement left gradually under the drive of the leading screw 9 that turns clockwise, pull and shear right flashboard 15 and be moved to the left; Simultaneously square nut 18 is left hand thread movement to the right gradually under the drive of the leading screw turned clockwise, promote elevated-temperature seal flashboard 17, shear left flashboard 16 and move right, shear right flashboard 15 mutually to close with the left flashboard 16 of shearing, THE ADIABATIC SHEAR IN is realized to the cable in well head 20 in wellhead flange 19 and wirerope.As shown in Figure 3, separate completely in the draw-in groove 10 that now slide block 8 is released on the left of mobile leading screw 9 by leading screw spacer 12, simultaneously Compress Spring 7 to dead point; Continue the rotating threaded shaft 6 that turns clockwise, mobile leading screw 9 starts to move right under the effect of left hand thread owing to throwing off completely, promote elevated-temperature seal flashboard 17, shear left flashboard 16 with shearing together with right flashboard 15 and move right, till arrival well head 20 center and refractory seals seat fit reach shut-in well completely.As shown in Figure 1, if when needing to open well head, then being rotated counterclockwise rotating threaded shaft 6 drives mobile leading screw 9 to be moved to the left until reach dead point, until mobile leading screw 9 not till being moved to the left, leading screw spacer 12 is moved to the left slide block 8 to boost under bar shaped nut 11 promotes not to be affected mobile leading screw 9 and arrives dead point, now rotating threaded shaft 6 and mobile leading screw 9 screw up into together with, continue to revolve counterclockwise, transfer movable wire thick stick 9 promotes bar shaped nut and drives 11, shear right flashboard 15 to move right, pull square nut 18 to drive elevated-temperature seal flashboard 17 simultaneously, shear left flashboard 16 to be moved to the left till well head 20 is opened completely.
Claims (1)
1. horizontal bar self cleavage formula high temperature blowout preventer, it is characterized in that: comprising: main body (1), the left end of described main body (1) is provided with left plate (2), the right-hand member of main body (1) is provided with right plate (3), rotated by bearing (4) and lock nut (5) in described left plate (2) and be provided with rotating threaded shaft (6), described rotating threaded shaft (6) is provided with spring (7) and slide block (8), left end and the rotating threaded shaft (6) of spring (7) offset, the right-hand member of spring (7) and the left end of slide block (8) offset, the right-hand member of slide block (8) matches with the draw-in groove (10) be arranged on mobile leading screw (9) left end, described mobile leading screw (9) is provided with three sections of screw threads, what be arranged on mobile leading screw (9) left end is the first left-handed thread section (91), what be arranged on mobile leading screw (9) middle part is right-handed thread section (92), what be arranged on mobile leading screw (9) right-hand member is the second left-handed thread section (93), escape (94) is respectively arranged with between first left-handed thread section (91) and right-handed thread section (92) and between right-handed thread section (92) and the second left-handed thread section (93), the left end arranging mobile leading screw (9) is arranged in rotating threaded shaft (6), mobile leading screw (9) middle part is arranged in bar shaped nut (11), leading screw spacer (12) is connected with in the left side of described bar shaped nut (1), connecting bolt (13) is connected with on the right side of described bar shaped nut (1), be provided with attaching nut (14) on the right side of connecting bolt (13) and shear right flashboard (15), the right flashboard of described shearing (15) cooperatively interacts with the left flashboard of shearing (16), the left flashboard of described shearing (16) is arranged on the right side of elevated-temperature seal flashboard (17), the square nut (18) that passes on left of elevated-temperature seal flashboard (17) is connected with the right-hand member of mobile leading screw (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510593855.4A CN105298428B (en) | 2015-09-16 | 2015-09-16 | Horizontal bar self cleavage formula high temperature blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510593855.4A CN105298428B (en) | 2015-09-16 | 2015-09-16 | Horizontal bar self cleavage formula high temperature blowout preventer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105298428A true CN105298428A (en) | 2016-02-03 |
| CN105298428B CN105298428B (en) | 2018-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510593855.4A Active CN105298428B (en) | 2015-09-16 | 2015-09-16 | Horizontal bar self cleavage formula high temperature blowout preventer |
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| CN (1) | CN105298428B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983331A (en) * | 2021-03-24 | 2021-06-18 | 大庆市天德忠石油科技有限公司 | Hydraulic double-gate plate well plugging device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090127482A1 (en) * | 2004-11-04 | 2009-05-21 | Anthony Stephen Bamford | Hydraulic rams |
| CN201526299U (en) * | 2009-09-28 | 2010-07-14 | 江苏省金峰石油机械制造有限公司 | Shearing fully-closed flashboard preventer |
| CN202300279U (en) * | 2011-09-28 | 2012-07-04 | 淮安市井神钻采机具有限公司 | Electric oil extracting and shearing antitheft well plugging device |
| WO2012106130A2 (en) * | 2011-02-03 | 2012-08-09 | T-3 Property Holdings, Inc. | Blowout preventer translating shaft locking system |
| CN103115156A (en) * | 2011-11-16 | 2013-05-22 | 韦特柯格雷公司 | Gate shear valve |
| CN205349283U (en) * | 2015-09-16 | 2016-06-29 | 盐城市大冈石油工具厂有限责任公司 | Horizontal bar is from shear type high temperature blowout preventer |
-
2015
- 2015-09-16 CN CN201510593855.4A patent/CN105298428B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090127482A1 (en) * | 2004-11-04 | 2009-05-21 | Anthony Stephen Bamford | Hydraulic rams |
| CN201526299U (en) * | 2009-09-28 | 2010-07-14 | 江苏省金峰石油机械制造有限公司 | Shearing fully-closed flashboard preventer |
| WO2012106130A2 (en) * | 2011-02-03 | 2012-08-09 | T-3 Property Holdings, Inc. | Blowout preventer translating shaft locking system |
| CN202300279U (en) * | 2011-09-28 | 2012-07-04 | 淮安市井神钻采机具有限公司 | Electric oil extracting and shearing antitheft well plugging device |
| CN103115156A (en) * | 2011-11-16 | 2013-05-22 | 韦特柯格雷公司 | Gate shear valve |
| CN205349283U (en) * | 2015-09-16 | 2016-06-29 | 盐城市大冈石油工具厂有限责任公司 | Horizontal bar is from shear type high temperature blowout preventer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983331A (en) * | 2021-03-24 | 2021-06-18 | 大庆市天德忠石油科技有限公司 | Hydraulic double-gate plate well plugging device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105298428B (en) | 2018-04-06 |
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