CN102828720A - Sealing packer device of continuous drilling fluid circulating system - Google Patents
Sealing packer device of continuous drilling fluid circulating system Download PDFInfo
- Publication number
- CN102828720A CN102828720A CN2012102718563A CN201210271856A CN102828720A CN 102828720 A CN102828720 A CN 102828720A CN 2012102718563 A CN2012102718563 A CN 2012102718563A CN 201210271856 A CN201210271856 A CN 201210271856A CN 102828720 A CN102828720 A CN 102828720A
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- China
- Prior art keywords
- packer
- sealed packer
- thrust bearing
- sealed
- housing
- 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.)
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Links
- 238000005553 drilling Methods 0.000 title claims abstract description 34
- 239000012530 fluid Substances 0.000 title claims abstract description 19
- 238000007789 sealing Methods 0.000 title abstract description 16
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 18
- 238000012856 packing Methods 0.000 claims description 28
- 230000003068 static effect Effects 0.000 claims description 5
- 239000003292 glue Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
A sealing packer device of a continuous drilling fluid circulating system mainly solves the problem that a rubber core of an existing sealing packer device is easy to wear severely. The sealing packer device is characterized in that an integrated middle full-seal packer (11) and a lower half-seal packer (12) are respectively provided with bypass pipeline connecting flanges (13), the upper half-seal packer is connected to the upper end of the middle full-seal packer (11), an upper cover (1) is connected to the upper end of a shell (5), a sealing rubber core (3) is arranged in a rotary shaft sleeve (2) between an upper thrust bearing (6) and a lower thrust bearing (7) in the shell (5), a plunger (8) is arranged in a sealing hydraulic cavity and an unsealing hydraulic cavity of the lower portion of the rotary shaft sleeve (2), the upper end of the plunger (8) is in contact with the lower surface of the sealing rubber core (3), and a hydraulic oil outlet channel (9) and a hydraulic oil inlet channel (10) are arranged on side walls of the rotary shaft sleeve (2) and the shell (5) on the upper surface and the lower surface of the plunger (8). The sealing packer device of the continuous drilling fluid circulating system has the advantage that the sealing packer device can be continuously used for a long time.
Description
Technical field
The present invention relates to the used packing device of a kind of oil drilling circulating system, especially drilling fluid continuous circulation system seal pack device.
Background technology
The seal pack device is a drilling fluid continuous circulation system important component part.And existing seal pack device is hard friction, causes the glue core to receive heavy wear, cause frequent change glue core, influenced the operation effectiveness of continuous circulation system owing to reasons in structure exists between seal pack device glue core and the drilling tool.
Summary of the invention
In order to solve the problem of existing seal pack device glue core heavy wear.The present invention provides a kind of drilling fluid continuous circulation system seal pack device.This drilling fluid continuous circulation system seal pack device has for a long time use continuously, and optimizes the bypass passageways characteristics.
Technical scheme of the present invention is: this drilling fluid continuous circulation system seal pack device comprise first sealed packer, in full sealed packer, second sealed packer.In full sealed packer be integral type with second sealed packer, in be respectively arranged with the bypass line adpting flange on full sealed packer and second sealed packer, during first sealed packer is connected on the full sealed packer; Described first sealed packer comprises loam cake, rotary sleeve, packing unit, hydraulic pressure sliding sleeve, housing, goes up thrust bearing and following thrust bearing; Full sealed packer upper end during housing is connected through flange; Loam cake is connected the housing upper end, and last thrust bearing and following thrust bearing place between housing inner step and the loam cake, and being equipped with top between last thrust bearing and the following thrust bearing is hemispheric rotary sleeve; Rotary sleeve top closed chamber is built-in with hemispheric packing unit; The sealed hydraulic chamber is arranged at the rotary sleeve bottom, and sealed hydraulic has plunger in the chamber, and the plunger upper end contacts below packing unit; There is the hydraulic pressure sliding sleeve plunger lower end, has hydraulic oil to go out passage and hydraulic oil stand in channel on rotary sleeve that hydraulic pressure sliding sleeve top and bottom are corresponding and the housing sidewall.
Be provided with dynamic seal ring between rotary sleeve bottom in the such scheme and the housing, be provided with the static seal circle between loam cake and the housing.
The present invention has following beneficial effect: this drilling fluid continuous circulation system seal pack device is owing to full sealed packer and second sealed packer in the employing are integral type; In be respectively arranged with the bypass line adpting flange, full sealed packer upper end during first sealed packer is connected on full sealed packer and second sealed packer; Described first sealed packer comprises loam cake, rotary sleeve, packing unit, hydraulic pressure sliding sleeve, housing, goes up thrust bearing and following thrust bearing; Full sealed packer upper end during housing is connected through flange; Loam cake is connected the housing upper end, and last thrust bearing and following thrust bearing place between housing inner step and the loam cake, and being equipped with top between last thrust bearing and the following thrust bearing is hemispheric rotary sleeve; Rotary sleeve top closed chamber is built-in with hemispheric packing unit; The sealed hydraulic chamber is arranged at the rotary sleeve bottom, and sealed hydraulic has plunger in the chamber, and the plunger upper end contacts below packing unit; There is the hydraulic pressure sliding sleeve plunger lower end, has hydraulic oil to go out passage and hydraulic oil stand in channel structure on rotary sleeve that hydraulic pressure sliding sleeve top and bottom are corresponding and the housing sidewall.Utilize plunger to promote packing unit, realize it and in the process of changing drilling rod, hold drilling rod tightly, reach the purpose of sealing.In the utilization thrust bearing and down thrust bearing rotary sleeve and drilling rod are rotated synchronously, reduce wear prolongation packing unit continuous service time.Be utilized as in the integral type full sealed packer and second sealed packer structure, in be respectively arranged with the bypass line adpting flange on full sealed packer and second sealed packer, and then the bypass passageways of optimization seal pack device.This drilling fluid continuous circulation system seal pack device has for a long time use continuously thus, and optimizes the bypass passageways characteristics.
Description of drawings
Accompanying drawing 1 is a structural representation of the present invention.
1-loam cake among the figure, 2-rotary sleeve, 3-packing unit, 4-hydraulic pressure sliding sleeve, 5-housing; The last thrust bearing of 6-, thrust bearing under the 7-, the 8-plunger, 9-hydraulic oil goes out passage; 10-hydraulic oil stand in channel, full sealed packer among the 11-, second sealed packer of 12-, 13-adpting flange.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described further:
Shown in accompanying drawing, this drilling fluid continuous circulation system seal pack device comprise first sealed packer, in full sealed packer 11, second sealed packer 12.Connection bump is arranged at first sealed packer top; Be used for this above drilling fluid continuous circulation system seal pack device equipment be connected; First sealed packer bottom have adpting flange, in full sealed packer 11 tops have connection bump, upper chamber's adpting flange, in full sealed packer 11 have hydraulic cylinder, whole chamber to have adpting flange, second sealed packer 12 that hydraulic cylinder is arranged, in full sealed packer 11 hydraulic cylinders be respectively applied for full sealed packer 11 and second sealed packer 12 switches in the control with second sealed packer 12 hydraulic cylinders.The full sealed packer in middle part adopts the blind rams structure, and bottom half sealed packer adopts the structure of partly sealing flashboard, in full sealed packer 11 be integral type with second sealed packer 12, reduce this drilling fluid continuous circulation system seal pack device whole height; In be respectively arranged with bypass line adpting flange 13 on full sealed packer 11 and second sealed packer 12; Bypass line adpting flange 13 is connected with corresponding bypass line respectively; And optimize the bypass passageways of this drilling fluid continuous circulation system seal pack device, full sealed packer 11 upper ends during first sealed packer is connected.
Described first sealed packer comprises loam cake 1, rotary sleeve 2, packing unit 3, hydraulic pressure sliding sleeve 4, housing 5, goes up thrust bearing 6 and following thrust bearing 7.Full sealed packer 11 upper ends during housing 5 is connected through flange and bolt, loam cake 1 is connected housing 5 upper ends, and last thrust bearing 6 and following thrust bearing 7 place between housing 5 inner steps and the loam cake 1; 3 rotations provide support last thrust bearing 6 with packing unit for rotary sleeve 2 with following thrust bearing 7, carry rotary sleeve 2 and packing unit 3 and hydraulic pressure sliding sleeve 4 and rotate synchronously, and being equipped with top between last thrust bearing 6 and the following thrust bearing 7 is hemispheric rotary sleeve 2; Rotary sleeve 2 top closed chamber are built-in with the packing unit 3 of hemisphere ring-type, and the sealed hydraulic chamber is arranged at rotary sleeve 2 bottoms, and plunger 8 is arranged in the sealed hydraulic chamber; Plunger 8 upper ends contact below packing unit 3, and there is hydraulic pressure sliding sleeve 4 plunger 8 lower ends, have hydraulic oil to go out passage 9 and hydraulic oil stand in channel 10 on rotary sleeve 2 that hydraulic pressure sliding sleeve 4 top and bottom are corresponding and housing 5 sidewalls; Hydraulic oil is got into by hydraulic oil stand in channel 10 and promotes hydraulic pressure sliding sleeve 4 in the sealed hydraulic chamber; Hydraulic pressure sliding sleeve 4 promotes plunger 8, and plunger 8 promotes packing unit 3, because 2 restrictions of hemispheric rotary sleeve; The contraction that packing unit 3 is realized radially; Thereby hold and seal drilling tool on one's own initiative tightly, reach the seal pack purpose, packing unit 3 salable 2
7/
8" to 5
1/
2" the drilling rod outer ring space; simultaneously since rotary sleeve 2 between last thrust bearing 6 and following thrust bearing 7; rotary sleeve 2 and packing unit 3 and drilling rod are rotated synchronously, eliminate packing unit 3 hard frictions, reduce packing unit 3 wearing and tearing; reduction replacing packing unit 3 is frequent, 3 application lifes of prolongation packing unit.Be provided with dynamic seal ring between rotary sleeve 2 bottoms and the housing 5; Be provided with the static seal circle between loam cake 1 and the housing 5; The static seal circle is used to seal the joint gap between loam cake 1 and the housing 5, and dynamic seal ring is used for being sealed in the hydraulic oil that rotary sleeve 2 rotations and static process sealed hydraulic oil go out passage 9 and hydraulic oil stand in channel 10.
The course of work; Be called chamber with closing first sealed packer No. 1 with the chamber that second sealed packer 12 forms; First sealed packer with in the chamber that forms of full sealed packer 11 be called chamber No. 2, in full sealed packer 11 be called chamber No. 3 with the chamber that second sealed packer 12 forms.Wherein first sealed packer adopts hydraulic oil to promote the packer of hydraulic pressure sliding sleeve 4 control packing units 3 sealed high pressure annular spaces, realizes it and on drilling rod, in the process of shackle, holds drilling rod tightly, rotates synchronously with drilling rod; The full sealed packer 11 in middle part adopts the structure of blind rams, and is designed with bypass in the top, to realize that No. 2 chambers are carried out pressure release; Bottom half sealed packer adopts the structure of partly sealing flashboard, can allow spudding action, and be designed with bypass in the top, to realize that No. 1 chamber is carried out filling high pressure drilling liquid and pressure release.
Can rotate synchronously with drilling rod in the time of the outer annular space of first sealed packer sealing drilling rod of this drilling fluid continuous circulation system seal pack device; Use the outer annular space of packing unit 3 sealing drilling rods; For realizing that rotatory sealing provides condition; Thrust bearing 6 and following thrust bearing 7 have been realized the flexible rotation of rotary sleeve 2 in the utilization, use dynamic seal ring and efficiently solve the rotatory sealing problem.First sealed packer abandons adopting the structure of flashboard packer, the by-pass port that causes upper chamber from first sealed packer is transferred on the full sealed packer 11, for this reason in full sealed packer 11 tops increase by-pass port, top increases the convexity that is used for connecting bolt simultaneously; In order to reduce this drilling fluid continuous circulation system seal pack device whole height, full sealed packer 11, second sealed packer 12 case design are integral structure in inciting somebody to action.
Claims (2)
1. drilling fluid continuous circulation system seal pack device; Comprise first sealed packer, in full sealed packer (11), second sealed packer (12); It is characterized in that: in full sealed packer (11) be integral type with second sealed packer (12); In be respectively arranged with bypass line adpting flange (13) on full sealed packer (11) and second sealed packer (12), during first sealed packer is connected on the full sealed packer (11); Described first sealed packer comprises loam cake (1), rotary sleeve (2), packing unit (3), hydraulic pressure sliding sleeve (4), housing (5), goes up thrust bearing (6) and following thrust bearing (7); Full sealed packer (11) upper end during housing (5) is connected through flange; Loam cake (1) is connected housing (5) upper end; Last thrust bearing (6) and following thrust bearing (7) place between housing (5) inner step and the loam cake (1); Being equipped with top between last thrust bearing (6) and the following thrust bearing (7) is hemispheric rotary sleeve (2), and rotary sleeve (2) top closed chamber is built-in with hemispheric packing unit (3), and the sealed hydraulic chamber is arranged at rotary sleeve (2) bottom; Plunger (8) is arranged in the sealed hydraulic chamber; Plunger (8) upper end contacts below packing unit (3), and there is hydraulic pressure sliding sleeve (4) plunger (8) lower end, has hydraulic oil to go out passage (9) and hydraulic oil stand in channel (10) on rotary sleeve (2) that hydraulic pressure sliding sleeve (4) top and bottom are corresponding and housing (5) sidewall.
2. drilling fluid continuous circulation system seal pack device according to claim 1 is characterized in that: be provided with dynamic seal ring between rotary sleeve (2) bottom and the housing (5), be provided with the static seal circle between loam cake (1) and the housing (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102718563A CN102828720A (en) | 2012-08-01 | 2012-08-01 | Sealing packer device of continuous drilling fluid circulating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102718563A CN102828720A (en) | 2012-08-01 | 2012-08-01 | Sealing packer device of continuous drilling fluid circulating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102828720A true CN102828720A (en) | 2012-12-19 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102718563A Pending CN102828720A (en) | 2012-08-01 | 2012-08-01 | Sealing packer device of continuous drilling fluid circulating system |
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| CN (1) | CN102828720A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110924891A (en) * | 2019-12-12 | 2020-03-27 | 胡全生 | Movable double-rubber-core underwater annular blowout preventer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5662171A (en) * | 1995-08-10 | 1997-09-02 | Varco Shaffer, Inc. | Rotating blowout preventer and method |
| US6554016B2 (en) * | 2000-12-12 | 2003-04-29 | Northland Energy Corporation | Rotating blowout preventer with independent cooling circuits and thrust bearing |
| CN2648048Y (en) * | 2003-09-10 | 2004-10-13 | 中国石油天然气股份有限公司 | A New Active Seal Rotating BOP and Its Control Device |
| CN101476451A (en) * | 2009-01-09 | 2009-07-08 | 中国石油集团川庆钻探工程有限公司钻采工艺技术研究院 | Active-sealing rotary blowout preventer glue core |
-
2012
- 2012-08-01 CN CN2012102718563A patent/CN102828720A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5662171A (en) * | 1995-08-10 | 1997-09-02 | Varco Shaffer, Inc. | Rotating blowout preventer and method |
| US6554016B2 (en) * | 2000-12-12 | 2003-04-29 | Northland Energy Corporation | Rotating blowout preventer with independent cooling circuits and thrust bearing |
| CN2648048Y (en) * | 2003-09-10 | 2004-10-13 | 中国石油天然气股份有限公司 | A New Active Seal Rotating BOP and Its Control Device |
| CN101476451A (en) * | 2009-01-09 | 2009-07-08 | 中国石油集团川庆钻探工程有限公司钻采工艺技术研究院 | Active-sealing rotary blowout preventer glue core |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110924891A (en) * | 2019-12-12 | 2020-03-27 | 胡全生 | Movable double-rubber-core underwater annular blowout preventer |
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Application publication date: 20121219 |