CN101769137A - Anti-blowout leakage-preventing device of Christmas tree big four joint - Google Patents
Anti-blowout leakage-preventing device of Christmas tree big four joint Download PDFInfo
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- CN101769137A CN101769137A CN 201010114240 CN201010114240A CN101769137A CN 101769137 A CN101769137 A CN 101769137A CN 201010114240 CN201010114240 CN 201010114240 CN 201010114240 A CN201010114240 A CN 201010114240A CN 101769137 A CN101769137 A CN 101769137A
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Abstract
The invention relates to an anti-blowout leakage-preventing device of a Christmas tree big four joint, applied to preventing the blockage of a big four joint at a producing well mouth in an oil field. A supporting board is fan-shaped and is provided with fixing holes in both ends and two homocentric arc holes; a main body is cylindrical; a screw hole perpendicular to a center line is arranged in the middle of the main body and internally provided with a lead screw; one end of the lead screw is connected with an arc kava body and a sealing body; a lower fixing rod is arranged at the lower end of the main body and inserted in the arc hole of the supporting board; an upper fixing rod and a screw rod at the upper end of the main body can move in the arc hole; and an adjusting nut is arranged on the screw rod at the upper end of the main body. The invention has the effects of blocking the Piercing-caused leakage of the Christmas tree big four joint and controlling the blockage of the Christmas tree big four joint in time, has convenient operation and reliable blockage, ensures the safety and the rapidness of emergency personnel, effectively implements the emergency rescue treatment of blowout accidents and breaks conventional blockage modes.
Description
Technical field
The present invention relates to oil recovery technique field, oil field, particularly a kind of oil extraction well mouth equipment.It is the multi-functional blowout prevention of a kind of Christmas tree big four joint device for plugging of speedily carrying out rescue work.
Background technology
At present, most of KY65-21 wellhead assembly (being commonly called as 250 production trees) that use in China oil field is in long-term oil recovery production use, because work under bad environment and be subjected to the external force effect causes pernicious gas blowout accident easily.Particularly Christmas tree big four joint is by in the casting technique manufacturing process, fluidity molten steel is poor, epidermis impurity bubble is many, Christmas tree big four joint inside exists in various degree and contains slag inclusion, bubble, and these internal flaws are difficult to inspection and do not come out in Christmas tree big four joint inside when dispatching from the factory.Christmas tree big four joint is for a long time in adverse circumstances work, be equivalent to the Ageing Treatment in the Technology for Heating Processing, the internal stress that produces in casting and the processing is progressively discharged, make its tissue take place to change relatively, liquid leaks from the defective thorn in operating pressure in the pit shaft is undergone mutation (during increase) well, controls the improper blowout that very easily forms, owing to do not have corresponding kill-job means and measure, can make blowout be difficult to control, cause pernicious gas blowout accident easily.
Above accident all has generation in each oil field, because its big four is revealed the blowout that causes, be difficult to effectively take precautions against, work brings very big difficulty to well control, at present domestic still do not have relative measures and instrument are arranged when big four takes place to leak, causing speedily carrying out rescue work in studying and defining the control blowout measure and the process of speedily carrying out rescue work, personnel's degree of danger increases, the difficulty of speedily carrying out rescue work strengthens, therefore handle all kinds of blowout thorn leakage accidents how fast, efficient, safely, become the inevitable research topic of we petroleum industry emergency persons.
Summary of the invention
The objective of the invention is: provide a kind of anti-blowout leakage-preventing device of Christmas tree big four joint, the thorn small opening of energy shutoff Christmas tree big four joint.In production and operation process, thorn takes place and leaks or blowout in big four, utilizes multi-functional big four anti-blowout leakage-preventing device, can in time control the leakage of Christmas tree big four joint thorn, to satisfy the needs of well control measure.Guarantee to speedily carry out rescue work personal security, implement the gas blowout accident disposal of speedily carrying out rescue work rapidly, effectively.
The technical solution used in the present invention is: anti-blowout leakage-preventing device of Christmas tree big four joint, mainly form by gripper shoe, last fixed bar, adjusting nut, leading screw, main body, following fixed bar, slips body and seal, and it is characterized in that:
Gripper shoe adopts steel plate to make, and gripper shoe is fan-shaped, and there is fixing hole at two ends, can gripper shoe be fixed on the upper and lower flange of Christmas tree big four joint by fixing hole.Gripper shoe has two concentric arcs holes.Main body is a column, can be cylinder or rectangle column.The screw of vertical center line is arranged at the main body middle part, a rhizoid thick stick is arranged in the screw of main body, an end of leading screw is connected with arc slips body, and arc slips body and leading screw end flexibly connect, and the slips physical efficiency keeps not rotating when rotating threaded shaft.The inner arc radius of arc slips body is identical with Christmas tree big four joint body exterior radius.Inboard at arc slips body is fixed with the arc seal, and seal adopts encapsulant to make, as rubber tile, lactoprene plate etc.
In the lower end of main body axial screw is arranged, be fixed with down fixed bar in the screw of main body lower end.Following fixed bar inserts in the arcuate socket of gripper shoe, and the width of arcuate socket is slightly larger than down the diameter of fixed bar, and fixed bar can be moved in arcuate socket.
There is axial hole upper end in main body.Last fixed bar is arranged in the main body axial hole.The diameter of last fixed bar is slightly less than main body top axial hole, and main body can move up and down along last fixed bar.There is step last fixed bar upper end, and last fixed bar diameter is less than the arcuate socket width, and last fixed bar inserts in the gripper shoe arcuate socket and can slide.There is screw rod upper end in main body with last fixed bar secured in parallel, and main body upper end screw rod inserts in another arcuate socket of gripper shoe, and main body upper end snail shank diameter is less than the arcuate socket width, and main body upper end screw rod can move at arcuate socket.On the screw rod of main body upper end, adjusting nut is arranged.The rotation adjusting nut can be regulated main body height up and down.
The gripper shoe on top is fixed on the upper flange place of Christmas tree big four joint, the gripper shoe of bottom is fixed on the lower flange of Christmas tree big four joint simultaneously, fixed bar and following fixed bar will sting Lou main body and be fixed on up and down between two gripper shoes in the employing, and adopt adjusting nut to adjust the height of leading screw.Make the slips body aim at Christmas tree big four joint with seal thorn small opening position takes place, the leading screw on the rotating main body is pressed in seal the thorn small opening that stings on the small opening and seal Christmas tree big four joint with leading screw.
For the highly pressurised liquid that prevents to sting Lou ejection hurts installation personnel, be welded with baffle plate in the one or both sides of main body, baffle plate is an arc, the height of baffle plate is identical with main body.
The principle of anti-blowout leakage-preventing device of Christmas tree big four joint and the course of work: consult Fig. 1.
When the thorn leakage takes place on Christmas tree big four joint 1 wall, at first see the position that big four body thorn leaks, after seeing thorn leakage position clearly, change seal 9 earlier and be connected 4 M10 screws with connector 8, tightening back and leading screw 5 connects, lower flange is respectively enabled two flange screws on big four 1 then, two screw angle 150 degree.Install lower supporting plate 2, (in operating process, the flange bolt of former Christmas tree big four joint 1 is not extremely torn open not got off as rust occurring, can use the hydraulic cutter pincers to cut off), earlier the gripper shoe 2 of bottom is fixed with the end flange of big four 1, adopt two M30 bolts to tighten, the gripper shoe 2 on top is installed again fixes with the upper flange of big four 1, two M30 bolts are tightened in employing, and main body 6 is vertically mounted between two gripper shoes 2, and the main body 6 preceding positions that should avoid thorn leakage or blowout are installed.Behind installation adjusting nut 4, adjust and improve leading screw 5 height, the seal 9 of leading screw 5 ends is alignd with the position height of big four 1 thorn leakage or blowout.Arcuate socket along gripper shoe 2 rotates main body 6 then, makes the seal 9 of leading screw 5 ends and the left and right sides aligned in position of big four 1 thorn leakage or blowout.Rotating threaded shaft 5 compresses big four 1 with seal 9 and stings the position of leakage or blowout, and thorn leakage or blowout are pushed down.
Beneficial effect of the present invention: anti-blowout leakage-preventing device of Christmas tree big four joint of the present invention, in time the thorn small opening of shutoff Christmas tree big four joint is controlled the Christmas tree big four joint thorn and leaked, and is easy to operate, shutoff is reliable, the personal security of guaranteeing to speedily carry out rescue work, implements the gas blowout accident disposal of speedily carrying out rescue work rapidly, effectively.Broken habitual shutoff mode.
Description of drawings
Fig. 1 is the speedily carry out rescue work structural profile schematic diagram of device for plugging of the multi-functional blowout prevention of Christmas tree big four joint of the present invention.
Fig. 2 a is gripper shoe 2 shape and structure schematic diagrames.
Fig. 2 b is the generalized section that the turnover of Fig. 1 is cutd open.
Among the figure, 1. Christmas tree big four joint, 2. gripper shoe 3. goes up fixed bar, 4. adjusting nut, 5. leading screw, 6. main body is 7. descended fixed bar, 8. slips body, 9. seal, 10. fixing hole, 11. arcuate sockets.
The specific embodiment
Embodiment 1: with an anti-blowout leakage-preventing device of Christmas tree big four joint is example, and the present invention is described in further detail.
Consult Fig. 1.Anti-blowout leakage-preventing device of Christmas tree big four joint of the present invention mainly is made up of gripper shoe 2, last fixed bar 3, adjusting nut 4, leading screw 5, main body 6, following fixed bar 7, slips body 8 and seal 9.
Consult Fig. 2.Gripper shoe 2 has two.Gripper shoe 2 employing thickness are that 20 millimeters steel plate is made, gripper shoe 2 is fan-shaped, there is fixing hole 10 at two ends, can two gripper shoes 2 be separately fixed on the flange of Christmas tree big four joint 1 by fixing hole 10, Christmas tree big four joint specification difference, two fixing holes 10 are according to the flange design of Christmas tree big four joint 1, and the technician can finish.Gripper shoe 2 has two concentric arcs holes 11.21 millimeters of the width of arcuate socket 11.
Consult Fig. 1.Main body 6 is a column, and main body 6 cross sections are rectangle columns of 80 * 100 millimeters.The T shape screw that vertical center line is arranged at main body 6 middle parts, the leading screw 5 that a T shape screw thread is arranged in the screw of main body 6, one end of leading screw 5 is connected with arc slips body 8, slips body 8 exterior arc surfaces are welded with a cylinder, cylinder inserts in the centre bore of leading screw 5 ends, be that arc slips body 8 flexibly connects with leading screw 5 ends, slips body 8 can keep motionless when rotating threaded shaft 5.The inner arc radius of arc slips body 8 and Christmas tree big four joint 1 body exterior radius are basic identical.The intrados radius of arc slips body 8 is 200 millimeters.Inboard at arc slips body 8 is fixed with seal 9, and seal 9 is that the thickness that adopts rubber packing material to make is 10 millimeters rubber tile.Seal 9 is fixed on intrados one side of connector 8 by 4 M10 sunk screws.
In the lower end of main body 6 axial screw is arranged, be fixed with down fixed bar 7 in the main body 6 lower end screws.Following fixed bar 7 inserts in the arcuate socket 11 of gripper shoe 2, and the width of arcuate socket 11 is slightly larger than down the diameter of fixed bar 7, and the diameter of fixed bar 7 is 20 millimeters.Fixed bar 7 can be moved in arcuate socket 11.
21 millimeters axial hole is arranged in the upper end of main body 6.Last fixed bar 3 is arranged in main body 6 axial holes.The diameter of last fixed bar 3 is slightly less than main body 6 top axial holes, and the diameter of last fixed bar 3 is 20 millimeters, and main body 6 can move up and down along last fixed bar 3.There is step last fixed bar 3 upper ends, and last fixed bar 3 diameters are less than arcuate socket 11 width, and last fixed bar 3 inserts in gripper shoe 2 arcuate sockets 11 and can slide.Be welded with a screw rod in that the upper end of main body 6 and last fixed bar 3 are parallel, main body 6 upper end screw rods insert in another arcuate socket 11 of gripper shoe 2,20 millimeters of main body 6 upper end snail shank diameters, less than arcuate socket 11 width, main body 6 upper end screw rods can move at arcuate socket 11.On main body 6 upper end screw rods, an adjusting nut 4 is arranged.Rotation adjusting nut 4 can improve and regulate the height of main body 6, makes leading screw 5 align the position of Christmas tree big four joint thorn small opening.
Respectively be welded with a thick baffle plate of 8 millimeters in the both sides of main body 6, baffle plate is an arc, and the height of baffle plate is identical with main body 6,300 millimeters of width.
Because Christmas tree big four joint specification difference is so the height and position of the length of main body 6 and leading screw 5 will be fit to Christmas tree big four joint.Those skilled in the art can finish.
Claims (2)
1. an anti-blowout leakage-preventing device of Christmas tree big four joint mainly is made up of gripper shoe (2), last fixed bar (3), adjusting nut (4), leading screw (5), main body (6), following fixed bar (7), slips body (8) and seal (9); It is characterized in that:
Gripper shoe (2) adopts steel plate to make, and gripper shoe (2) is fan-shaped, and there is fixing hole (10) at two ends, and gripper shoe (2) has two concentric arcs holes (11); Main body (6) is a column, the screw that vertical center line is arranged at main body (6) middle part, one rhizoid thick stick (5) is arranged in the screw of main body (6), one end of leading screw (5) is connected with arc slips body (8), arc slips body (8) flexibly connects with leading screw (5) end, the inner arc radius of arc slips body (8) is identical with Christmas tree big four joint (1) body exterior radius, is fixed with arc seal (9) in the inboard of arc slips body (8);
There is axial screw lower end in main body (6), is fixed with down fixed bar (7) in the screw of main body (6) lower end, and following fixed bar (7) inserts in the arcuate socket (11) of gripper shoe (2), and the width of arcuate socket (11) is slightly larger than down the diameter of fixed bar (7);
There is axial hole upper end in main body (6), in main body (6) axial hole last fixed bar (3) is arranged, and the diameter of last fixed bar (3) is slightly less than main body (6) top axial hole, and main body (6) can move up and down along last fixed bar (3); There is step last fixed bar (3) upper end, and last fixed bar (3) diameter is less than arcuate socket (11) width, and last fixed bar (3) inserts in gripper shoe (2) arcuate socket (11); Upper end and last fixed bar (3) secured in parallel in main body (6) have screw rod, main body (6) upper end screw rod inserts in another arcuate socket (11) of gripper shoe (2), main body (6) upper end snail shank diameter is less than arcuate socket (11) width, main body (6) upper end screw rod can move at arcuate socket (11), on the screw rod of main body (6) upper end adjusting nut (4) is arranged.
2. anti-blowout leakage-preventing device of Christmas tree big four joint as claimed in claim 1 is characterized in that: the one or both sides in main body (6) are welded with baffle plate, and baffle plate is an arc, and the height of baffle plate is identical with main body (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101142406A CN101769137B (en) | 2010-02-10 | 2010-02-10 | Anti-blowout leakage-preventing device of Christmas tree big four joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101142406A CN101769137B (en) | 2010-02-10 | 2010-02-10 | Anti-blowout leakage-preventing device of Christmas tree big four joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101769137A true CN101769137A (en) | 2010-07-07 |
| CN101769137B CN101769137B (en) | 2012-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101142406A Active CN101769137B (en) | 2010-02-10 | 2010-02-10 | Anti-blowout leakage-preventing device of Christmas tree big four joint |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114526029A (en) * | 2022-03-08 | 2022-05-24 | 高均红 | Prevent that blowout promptly keeps away christmas tree of dangerous function |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5456320A (en) * | 1993-12-06 | 1995-10-10 | Total Tool, Inc. | Casing seal and spool for use in fracturing wells |
| CN2871819Y (en) * | 2006-03-24 | 2007-02-21 | 大港油田集团有限责任公司 | Jump jetter of double pipe head |
| CN2923988Y (en) * | 2006-06-23 | 2007-07-18 | 大港油田集团有限责任公司 | Oil-production tree well head rush spraying device |
| US7493944B2 (en) * | 2002-02-19 | 2009-02-24 | Duhn Oil Tool, Inc. | Wellhead isolation tool and method of fracturing a well |
| CN201620801U (en) * | 2010-02-10 | 2010-11-03 | 中国石油天然气股份有限公司 | Blowout prevention leakage-stopping device of large four-way joint of oil production tree |
-
2010
- 2010-02-10 CN CN2010101142406A patent/CN101769137B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5456320A (en) * | 1993-12-06 | 1995-10-10 | Total Tool, Inc. | Casing seal and spool for use in fracturing wells |
| US7493944B2 (en) * | 2002-02-19 | 2009-02-24 | Duhn Oil Tool, Inc. | Wellhead isolation tool and method of fracturing a well |
| CN2871819Y (en) * | 2006-03-24 | 2007-02-21 | 大港油田集团有限责任公司 | Jump jetter of double pipe head |
| CN2923988Y (en) * | 2006-06-23 | 2007-07-18 | 大港油田集团有限责任公司 | Oil-production tree well head rush spraying device |
| CN201620801U (en) * | 2010-02-10 | 2010-11-03 | 中国石油天然气股份有限公司 | Blowout prevention leakage-stopping device of large four-way joint of oil production tree |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114526029A (en) * | 2022-03-08 | 2022-05-24 | 高均红 | Prevent that blowout promptly keeps away christmas tree of dangerous function |
| CN114526029B (en) * | 2022-03-08 | 2023-08-25 | 大庆丹枫石油技术开发有限公司 | Christmas tree with blowout prevention emergency risk avoidance function |
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| Publication number | Publication date |
|---|---|
| CN101769137B (en) | 2012-08-08 |
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