CN103032044A - Multipurpose well shutting machine - Google Patents
Multipurpose well shutting machine Download PDFInfo
- Publication number
- CN103032044A CN103032044A CN2012105468199A CN201210546819A CN103032044A CN 103032044 A CN103032044 A CN 103032044A CN 2012105468199 A CN2012105468199 A CN 2012105468199A CN 201210546819 A CN201210546819 A CN 201210546819A CN 103032044 A CN103032044 A CN 103032044A
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- lining
- sealing rubber
- blowout preventer
- glue core
- bottom layer
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- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The invention discloses a multipurpose well shutting machine, which is characterized in that a cylindrical cavity is formed inside a well shutting device body, and is provided with a step; a bottom layer sealing rubber core is directly seated on the cavity step inside the well shutting device; a lining is seated on the upper end face of the bottom layer sealing rubber core; secondary sealing rubber cores are seated on the upper end face of the lining; rubber core pressure plates are used for fixedly connecting the bottom layer sealing rubber core, the lining and the secondary sealing rubber cores through screw threads so that the bottom layer sealing rubber core, the lining and the secondary sealing rubber cores are mutually compressed up and down; the rubber core pressure plates are also fixedly connected with the well shutting device body through screw threads; the bottom layer sealing rubber core is positioned on a lower layer rubber sleeve cavity; the secondary sealing rubber cores are positioned on upper layer rubber sleeve cavities; and the bottom layer sealing rubber core is communicated with the secondary sealing rubber cores through a diversion channel; a balance valve is fixed together with the well shutting device body through screw threads, and is communicated with the diversion channel; an overflow valve is connected with the well shutting device body through screw threads, and is communicated with the upper layer rubber sleeve cavities; and a check valve is fixed inside the lining through screw threads. Due to the adoption of the multipurpose well shutting machine, pipe column detaching construction can be performed when a shaft is under a certain pressure, and a secondary protection sealing rubber sleeve is arranged.
Description
Technical field
The present invention relates to oil gas drilling production technique field, is one of rig tool, particularly multipurpose blowout preventer in the operation of oil gas field reservoir reconstruction.
Background technology
Blowout preventer is requisite downhole tool in the oil gas drilling exploitation, for further efficiency of construction, shorten duty cycle, has carried out the research of construction operation with pressure.Pressure break needed open flow, open flow to pressure to reach the construction that construction requirement just can continue subsequent processing after complete in the past, and the cycle that open flow bleeds off pressure is generally long, has so just taken a large amount of personnel, equipment, time.Therefore, we need to design a kind of blowout preventer that can bear high pressure, can realize construction operation with pressure, and operating efficiency shortens construction period, satisfies development need.
Summary of the invention
The purpose of this invention is to provide a kind of multipurpose blowout preventer, remove in the time of can in pit shaft, being in certain pressure and keep a grip on construction operation, and be provided with the second protection seal rubber sleeve.
Technical scheme of the present invention is the multipurpose blowout preventer, which comprises at least the bottom packing unit, secondary seal glue core, equalizing valve, ball-and-seat, overflow valve and blowout preventer body, it is characterized in that: the blowout preventer body interior is cylindrical cavity, be provided with step, the bottom packing unit directly is seated on the cavity step of blowout preventer body interior, lining is seated in the upper surface of bottom packing unit, secondary seal glue core is seated in the upper surface of lining, glue core pressing plate by screw thread with the bottom packing unit, lining be fixedly connected with secondary seal glue core and on, lower mutually compression, glue core pressing plate also is fixedly connected with the blowout preventer body by screw thread, the bottom packing unit is positioned at lower floor's gum cover cavity, secondary seal glue core is positioned at upper strata gum cover cavity, and they are communicated with by flow-guiding channel; Equalizing valve is fixed by screw thread and blowout preventer body, and is communicated with flow-guiding channel; Overflow valve is connected with the blowout preventer body by screw thread, and with upper strata gum cover cavity conducting; Ball-and-seat is fixed on bush inside by screw thread.
Be provided with the first annular groove on the described blowout preventer body, overflow valve and the first annular groove conducting.
Be provided with the second annular groove on the described lining, ball-and-seat is by the second annular groove and lining conducting.
Characteristics of the present invention are by the second protection seal rubber sleeve is set; behind bottom seal rubber sleeve wear out failure, the secondary seal gum cover starts, simultaneously; bottom gum cover inefficacy overflow valve begins overflow---and prompting field personnel bottom sealing shroud damages, takes appropriate measures and processes.This multipurpose blowout preventer not only can satisfy the needs of reservoir reconstruction, and the positiver sealing that rises, keeps a grip on down in the situation with pressure that can guarantee, the utilization ratio of the equipment of raising shortens duty cycle.
Description of drawings
The present invention is further illustrated below in conjunction with embodiment.
Fig. 1 is the structural representation of multipurpose blowout preventer.
Among the figure: 1, secondary seal glue core; 2, bottom packing unit; 3, equalizing valve; 4, ball-and-seat; 5, the second annular groove; 6, lining; 7, glue core pressing plate; 8, overflow valve; 9, the first annular groove; 10, blowout preventer body.
The specific embodiment
Shown in Fig. 1, the basis of multipurpose blowout preventer is the middle blowout preventer body 10 that cylindrical cavity is arranged, cavity inside is provided with step, bottom packing unit 2 directly is seated on the step, the upper surface of bottom packing unit 2 has been located lining 6, lining 6 upper surfaces have been located secondary seal glue core 1, and bottom packing unit 2, lining 6 and secondary seal glue core 1 compress by glue core pressing plate 7, and by screw thread that they are fastening.Glue core pressing plate 7 is fixedly connected with blowout preventer body 10 by screw thread.
Like this, bottom packing unit 2 is positioned at lower floor's gum cover cavity, and secondary seal glue core 1 is positioned at upper strata gum cover cavity, and upper and lower layer gum cover cavity is communicated with by flow-guiding channel, and lining 6 is separated two-layer gum cover cavity.
Be provided with the second annular groove 5, the second annular grooves 5 on the lining 6 and be 360 ° around the groove of lining, ball-and-seat 4 is installed in the lining 6, with 5 conductings of the second annular groove.Ball-and-seat 4 is opened upper and lower layer gum cover cavity is communicated with, and makes pressure consistent.
The outside of blowout preventer body 10 is fixedly connected with equalizing valve 3 and overflow valve 8 by screw thread respectively.
Equalizing valve 3 is communicated with the flow-guiding channel of upper and lower layer gum cover cavity, and overflow valve 8 is by the first annular groove 9 and lower floor's gum cover cavity conducting.
The first annular groove 9 and the second annular groove 5 all are 360 ° circumferential grooves, because directly punching is difficult to aim at, so adopt the mode of annular groove to make things convenient for conducting.
During work, when carrying out pressing crack construction, blowout preventer body 10 passes through the flange Connection Block on wellhead flange or preventer, overflow valve 8 cuts out, open equalizing valve 3 and ball-and-seat 4 individual events circulation and open, the upper and lower part of bottom packing unit 2 is communicated with, and pressure is consistent, bottom packing unit 2 is held oil pipe tightly under the effect of annular pressure, realize the sealing annular space; When bottom packing unit 2 damaged, secondary seal glue core 1 was held oil pipe tightly under the effect of annular pressure, realized the sealing annular space.
When on carry when dragging tubing string, close equalizing valve 3, open overflow valve 8, bottom packing unit 2 is held oil pipe tightly under the effect of annular pressure, realize the sealing annular space.When bottom packing unit 2 damages, ball-and-seat 4 individual events circulation shutoff, overflow valve 8 beginning overflows, secondary seal glue core 1 is held oil pipe tightly under the effect of annular pressure, continue the sealing annular space.
The parts that present embodiment is not described in detail and structure belong to well-known components and common structure or the conventional means of the industry, here not one by one narration.
Claims (3)
1. multipurpose blowout preventer, which comprises at least bottom packing unit (2), secondary seal glue core (1), equalizing valve (3), ball-and-seat (4), overflow valve (8) and blowout preventer body (10), it is characterized in that: blowout preventer body (10) inside is cylindrical cavity, be provided with step, bottom packing unit (2) directly is seated on the inner cavity step of blowout preventer body (10), lining (6) is seated in the upper surface of bottom packing unit (2), secondary seal glue core (1) is seated in the upper surface of lining (6), glue core pressing plate (7) by screw thread with bottom packing unit (2), lining (6) be fixedly connected with secondary seal glue core (1) and on, lower mutually compression, glue core pressing plate (7) also is fixedly connected with blowout preventer body (10) by screw thread, bottom packing unit (2) is positioned at lower floor's gum cover cavity, secondary seal glue core (1) is positioned at upper strata gum cover cavity, and they are communicated with by flow-guiding channel; Equalizing valve (3) is fixing by screw thread and blowout preventer body (10), and is communicated with flow-guiding channel; Overflow valve (8) is connected with blowout preventer body (10) by screw thread, and with upper strata gum cover cavity conducting; Ball-and-seat (4) is fixed on lining (6) inside by screw thread.
2. the multipurpose blowout preventer described in according to claim 1 is characterized in that: be provided with the first annular groove (9) on the described blowout preventer body (10), overflow valve (8) and the first annular groove (9) conducting.
3. the multipurpose blowout preventer described in according to claim 1, it is characterized in that: be provided with the second annular groove (5) on the described lining (6), ball-and-seat (4) is by the second annular groove (5) and lining conducting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210546819.9A CN103032044B (en) | 2012-12-17 | 2012-12-17 | Multipurpose blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210546819.9A CN103032044B (en) | 2012-12-17 | 2012-12-17 | Multipurpose blowout preventer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103032044A true CN103032044A (en) | 2013-04-10 |
| CN103032044B CN103032044B (en) | 2015-09-16 |
Family
ID=48019389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210546819.9A Expired - Fee Related CN103032044B (en) | 2012-12-17 | 2012-12-17 | Multipurpose blowout preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103032044B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87216479U (en) * | 1987-12-18 | 1988-09-21 | 大庆石油管理局第五采油厂 | Eccentric oil-pumping well head equipment |
| US20050199389A1 (en) * | 2004-03-12 | 2005-09-15 | Dallas L. M. | Wellhead and control stack pressure test plug tool |
| CN101008310A (en) * | 2006-01-23 | 2007-08-01 | 安占中 | Portable hydraulic blowout preventer for water injection profile logging |
| CN201354615Y (en) * | 2009-01-14 | 2009-12-02 | 大庆油田有限责任公司 | Gas underbalance well drilling rotary blowout preventer |
| CN201943638U (en) * | 2011-01-14 | 2011-08-24 | 汤国华 | Sealing machine for oil well sucker rod |
| CN202325347U (en) * | 2011-10-17 | 2012-07-11 | 李长金 | Two-stage integrated high-pressure self-sealing device |
| CN102704885A (en) * | 2012-06-18 | 2012-10-03 | 盐城华亚石油机械制造有限公司 | Multipurpose well shutting device |
| CN203008840U (en) * | 2012-12-17 | 2013-06-19 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Multi-purpose well shutting device |
-
2012
- 2012-12-17 CN CN201210546819.9A patent/CN103032044B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87216479U (en) * | 1987-12-18 | 1988-09-21 | 大庆石油管理局第五采油厂 | Eccentric oil-pumping well head equipment |
| US20050199389A1 (en) * | 2004-03-12 | 2005-09-15 | Dallas L. M. | Wellhead and control stack pressure test plug tool |
| CN101008310A (en) * | 2006-01-23 | 2007-08-01 | 安占中 | Portable hydraulic blowout preventer for water injection profile logging |
| CN201354615Y (en) * | 2009-01-14 | 2009-12-02 | 大庆油田有限责任公司 | Gas underbalance well drilling rotary blowout preventer |
| CN201943638U (en) * | 2011-01-14 | 2011-08-24 | 汤国华 | Sealing machine for oil well sucker rod |
| CN202325347U (en) * | 2011-10-17 | 2012-07-11 | 李长金 | Two-stage integrated high-pressure self-sealing device |
| CN102704885A (en) * | 2012-06-18 | 2012-10-03 | 盐城华亚石油机械制造有限公司 | Multipurpose well shutting device |
| CN203008840U (en) * | 2012-12-17 | 2013-06-19 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Multi-purpose well shutting device |
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| CN103032044B (en) | 2015-09-16 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20211217 |
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| CF01 | Termination of patent right due to non-payment of annual fee |