CN201687945U - Positive-pressure piercing-leakage prevention washing pipe sealing device - Google Patents
Positive-pressure piercing-leakage prevention washing pipe sealing device Download PDFInfo
- Publication number
- CN201687945U CN201687945U CN2009202151161U CN200920215116U CN201687945U CN 201687945 U CN201687945 U CN 201687945U CN 2009202151161 U CN2009202151161 U CN 2009202151161U CN 200920215116 U CN200920215116 U CN 200920215116U CN 201687945 U CN201687945 U CN 201687945U
- Authority
- CN
- China
- Prior art keywords
- washing pipe
- chamber
- drilling fluid
- oil
- hole
- 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.)
- Expired - Fee Related
Links
- 238000005406 washing Methods 0.000 title claims abstract description 38
- 238000007789 sealing Methods 0.000 title claims abstract description 17
- 230000002265 prevention Effects 0.000 title abstract 4
- 238000005553 drilling Methods 0.000 claims abstract description 31
- 239000012530 fluid Substances 0.000 claims abstract description 25
- 238000012856 packing Methods 0.000 claims abstract description 24
- 239000004519 grease Substances 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 230000007935 neutral effect Effects 0.000 claims description 3
- 244000144985 peep Species 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 2
- 239000003345 natural gas Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- 235000020681 well water Nutrition 0.000 description 2
- 239000002349 well water Substances 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model relates to a positive-pressure piercing-leakage prevention washing pipe sealing device, which is used for oil and natural gas drilling industry, and comprises an axial oil guide hole (1), an inner high-pressure pipeline (2), a pressurizing cylinder (4), a connecting rod piston (3), a high-pressure oil nozzle (5), an outer high-pressure pipeline (10) and a drilling fluid leading-out hole (11). The area of one end of the connecting rod piston (3) close to a washing pipe (9) is smaller that of the other end of the connecting rod piston (3); an inner cavity of the pressurizing cylinder (4) is divided into an oil chamber (7) and a mud chamber (8); the oil chamber (7) is provided with a check valve (6); the drilling fluid leading-out hole (11) is arranged on the left side of the washing pipe; the axial oil guide hole (1) is connected with the oil chamber (7) by the aid of the inner high-pressure pipeline (2); and the drilling fluid leading-out hole (11) is connected with the mud chamber (8) by the aid of the outer high-pressure pipeline (10). The positive-pressure piercing leakage prevention washing pipe sealing device has the advantages of no need of an external power source, simple use, prevention of drilling fluid intrusion and capability of prolonging the service life of sealing packing.
Description
Technical field
The utility model relates to oil and gas well drilling industry rotating sealing device, particularly is fit to the seal arrangement that drive on the top or drilling well water tap washing pipe uses, promptly a kind of positive-pressure type anti-pricked washpipe packing device.
Background technique
In Process of Oil Well Drilling, just provide rotary seal as the effect of washing pipe 9 in the accompanying drawing 1, be the important device of setting up circulation of drilling fluid, mainly be installed in the top drive with the drilling well water tap on.The present washing pipe rotary seal mechanism that uses, expose in high pump pressure operating conditions short following working life, problems such as poor reliability, the main cause that above-mentioned situation takes place is that drilling fluid is under the effect of high pump pressure, carrying a large amount of solid phase particles invades in the washpipe packing box, cause the quick abrasion of sealing surface and sealing material, shortened the working life of washing pipe and sealed packing greatly, especially under the circulating pressure condition with higher, very easily thorn leaks washing pipe, not only reduce the drilling well timeliness, also caused down hole problem when serious.
Summary of the invention
For solving on-the-spot existing the problems referred to above, eliminate the washing pipe thorn and leak the harm that brings, the positive-pressure type anti-pricked washpipe packing device that the utility model provides, be outside washing pipe, to increase the equipment that a cover can add the high pressure sealing grease, adopt malleation to mend into the hydraulic pressure grease, suppress mud and invade the washing pipe rotating sealing device, avoid the solid phase particles deposition, the working life of improving sealing material.
For achieving the above object, the technical solution adopted in the utility model is: increase the equipment of introducing the high pressure sealing grease outside conventional washpipe packing device, this equipment of introducing the high pressure sealing grease mainly is made up of axial oil guiding hole, inner high voltage pipeline, pressurized cylinder, connecting rod piston, high pressure oil nozzle, outer high pressure line and drilling fluid leadout hole, axially oil guiding hole and drilling fluid leadout hole are distributed in the both sides of washing pipe, the drilling fluid leadout hole is the radial direction through hole along washing pipe, is communicated with inside and outside the washing pipe; Axially oil guiding hole is the axial bore on the washing pipe wall, and its upper end is communicated with the washing pipe outside, and the lower end is communicated with the washpipe packing chamber; Connecting rod piston is near the area of the washing pipe one end area less than the other end, and the pressurized cylinder inner chamber is separated into two chambers, is the little oil-in chamber of volume near an end of washing pipe, and the other end forms capacious mud chamber; Oil-in chamber leaves the convenient one-way valve that injects grease; The drilling fluid leadout hole is left in the washing pipe left side, and axially oil guiding hole is linked to each other with the oil-in chamber of pressurized cylinder by the inner high voltage pipeline; The drilling fluid leadout hole is connected with the mud chamber of pressurized cylinder by outer high pressure line.
The pressurized cylinder lower wall leaves peep hole in the connecting rod piston neutral position.
Seal ring, sealing circle are arranged can be " O " type, " Y " type or " Yx " rubber seal for the outside of iron pan root design in the washpipe packing chamber.
The beneficial effects of the utility model are: need not external power source; Use simple; Lasting positive pressure can be provided, stop the drilling fluid invasion; Also can provide lubricated for a long time, prolong the working life of sealed packing.
Description of drawings
Fig. 1 is that the utility model is near the prior art constructions schematic representation;
Fig. 2 is the utility model structural representation.
Embodiment
The utility model is not subjected to following embodiment's restriction, can determine concrete mode of execution according to the technical solution of the utility model and actual conditions.
The utility model is described in more detail below in conjunction with accompanying drawing 2.
As shown in Figure 2, the utility model adopts increases the equipment of introducing the high pressure sealing grease outside conventional washpipe packing device, this equipment of introducing the high pressure sealing grease mainly is made up of axial oil guiding hole 1, inner high voltage pipeline 2, pressurized cylinder 4, connecting rod piston 3, high pressure oil nozzle 5, outer high pressure line 10 and drilling fluid leadout hole 11, axially oil guiding hole 1 and drilling fluid leadout hole 11 are distributed in the both sides of washing pipe 9, the drilling fluid leadout hole is the radial direction through hole along washing pipe 9, is communicated with inside and outside the washing pipe 9; Axially oil guiding hole 1 is the axial bore on washing pipe 9 walls, and its upper end is communicated with washing pipe 9 outsides, and the lower end is communicated with washpipe packing chamber 13; Connecting rod piston 3 is near the area of the washing pipe 9 one ends area less than the other end, and pressurized cylinder 4 inner chambers are separated into two chambers, is the little oil-in chamber of volume 7 near an end of washing pipe 9, and the other end forms capacious mud chamber 8; Oil-in chamber 7 leaves the convenient one-way valve 6 that injects grease; Drilling fluid leadout hole 11 is left in the washing pipe left side, and axially oil guiding hole 1 is linked to each other with the oil-in chamber 7 of pressurized cylinder 4 by inner high voltage pipeline 2; Drilling fluid leadout hole 11 is connected with the mud chamber 8 of pressurized cylinder 4 by outer high pressure line 10.
For in time finding the blowby of mud in the pressurized cylinder 4, be positioned at connecting rod piston 3 neutral positions at pressurized cylinder 4 lower walls and leave peep hole 15.
Can in time in pressurized cylinder 4, mend grease by one-way valve 6.
The utility model is when practical application, the drilling fluid that drilling fluid leadout hole 11 is derived is communicated to the mud chamber 8 of connecting rod piston 3, piston rod 3 moves and pushes oil-in chamber 7 to washing pipe one side direction and enters washpipe packing chamber 13, in the washpipe packing box, form positive pressure, stop drilling fluid to be invaded, but and the crush seal packing, improve the sealed packing sealing effect effectively.
Claims (4)
1. positive-pressure type anti-pricked washpipe packing device, outside conventional washpipe packing device, increase the equipment of introducing the high pressure sealing grease, it is characterized in that: the equipment of this introducing high pressure sealing grease mainly is made up of axial oil guiding hole (1), inner high voltage pipeline (2), pressurized cylinder (4), connecting rod piston (3), high pressure oil nozzle (5), outer high pressure line (10), drilling fluid leadout hole (11), axially oil guiding hole (1) and drilling fluid leadout hole (11) are distributed in the both sides of washing pipe (9), the drilling fluid leadout hole is the radial direction through hole along washing pipe (9), is communicated with inside and outside the washing pipe (9); Axially oil guiding hole (1) is the axial bore on washing pipe (9) wall, and its upper end is communicated with washing pipe (9) outside, and the lower end is communicated with washpipe packing chamber (13); Connecting rod piston (3) is near the area of washing pipe (9) the one ends area less than the other end, and pressurized cylinder (4) inner chamber is separated into two chambers, is the little oil-in chamber of volume (7) near an end of washing pipe (9), and the other end forms capacious mud chamber (8); Oil-in chamber (7) leaves the convenient one-way valve (6) that injects grease; Drilling fluid leadout hole (11) is left in the washing pipe left side, and axially oil guiding hole (1) is linked to each other with the oil-in chamber (7) of pressurized cylinder (4) by inner high voltage pipeline (2); Drilling fluid leadout hole (11) is connected with the mud chamber (8) of pressurized cylinder (4) by outer high pressure line (10).
2. according to right 1 described positive-pressure type anti-pricked washpipe packing device, it is characterized in that: pressurized cylinder (4) lower wall leaves peep hole (15) in connecting rod piston (3) neutral position.
3. according to right 1 described positive-pressure type anti-pricked washpipe packing device, it is characterized in that: the design of the outside of iron pan root has seal ring (14) in the washpipe packing chamber.
4. according to right 3 described positive-pressure type anti-pricked washpipe packing devices, it is characterized in that: seal ring (14) can be " O " type, " Y " type or " Yx " rubber seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202151161U CN201687945U (en) | 2009-12-27 | 2009-12-27 | Positive-pressure piercing-leakage prevention washing pipe sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202151161U CN201687945U (en) | 2009-12-27 | 2009-12-27 | Positive-pressure piercing-leakage prevention washing pipe sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201687945U true CN201687945U (en) | 2010-12-29 |
Family
ID=43376225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202151161U Expired - Fee Related CN201687945U (en) | 2009-12-27 | 2009-12-27 | Positive-pressure piercing-leakage prevention washing pipe sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201687945U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787819A (en) * | 2012-07-16 | 2012-11-21 | 甄国卿 | Tire type puncture-proof eccentric packing box |
| CN103628838A (en) * | 2013-11-24 | 2014-03-12 | 刘文化 | Sealing technology for packing box of oil pumping unit |
| CN110608002A (en) * | 2019-09-20 | 2019-12-24 | 四川昆仑石油设备制造有限公司 | A flushing pipe assembly |
-
2009
- 2009-12-27 CN CN2009202151161U patent/CN201687945U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787819A (en) * | 2012-07-16 | 2012-11-21 | 甄国卿 | Tire type puncture-proof eccentric packing box |
| CN103628838A (en) * | 2013-11-24 | 2014-03-12 | 刘文化 | Sealing technology for packing box of oil pumping unit |
| CN110608002A (en) * | 2019-09-20 | 2019-12-24 | 四川昆仑石油设备制造有限公司 | A flushing pipe assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20141227 |
|
| EXPY | Termination of patent right or utility model |