CN201159060Y - Wash pipe assembly for oil-well rig water tap with pressure transmission bag - Google Patents
Wash pipe assembly for oil-well rig water tap with pressure transmission bag Download PDFInfo
- Publication number
- CN201159060Y CN201159060Y CNU2007200312390U CN200720031239U CN201159060Y CN 201159060 Y CN201159060 Y CN 201159060Y CN U2007200312390 U CNU2007200312390 U CN U2007200312390U CN 200720031239 U CN200720031239 U CN 200720031239U CN 201159060 Y CN201159060 Y CN 201159060Y
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- Prior art keywords
- packing box
- packing
- oil
- pressure
- wash pipe
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- Expired - Fee Related
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Abstract
A wash pipe assembly with a pressure-transferring package used for an oil-well rig tap comprises slurry packings which are respectively fixed on both ends of a wash pipe through an upper packing box and a lower packing box, the pressure-transferring package which is connected with a memory is communicated with an oil cup which is arranged on the upper packing box, one end of the wash pipe is provided with a slurry packing in a sealing mode through the upper packing box, which are together fixed into one body with an upper cover, and the other end of the wash pipe is provided with a slurry packing in a sealing mode through the lower packing box, which are together connected with the center pipe into one body through the union of internal trapezoidal threads. The wash pipe assembly changes the slurry pressure to the oil pressure through the pressure-transferring package to balance the pressured state of a sealing element and to alleviate the abrasion of the sealing element, and the service life of the wash pipe assembly is prolonged.
Description
Technical field
The utility model relates to a kind of oil-well rig water tap washing pipe assembly with the pressure transmission bag of oil drilling equipment technical field.
Background technology
As the critical component washing pipe assembly of water tap, its work under bad environment is movable sealing between washing pipe and the packing_seal, requires high pressure resistant, anticorrosion and good airproof performance.Domestic petroleum rig water tap extensive use at present be floating punch tubular type packing_seal device, according to its operating principle, all operating pressures at first concentrate on the sealing ring, behind this ring wear, all pressure concentrates on again on the next sealing ring, effect is treated to change after all sealing rings all lost efficacy so successively, causes sealing ring to damage fast.
This shows that concentrated pressurized is the principal element that sealing ring damages fast.The utility model can solve the problem that sealing ring damages fast effectively.
Summary of the invention
The utility model purpose is a kind of oil-well rig water tap washing pipe assembly with the pressure transmission bag of design, with the quick problem of damaging of effective solution sealing ring.
Specifically, a kind of oil-well rig water tap washing pipe assembly with the pressure transmission bag, it comprises uses the mud packing that packing box and following packing box are fixed on the washing pipe two ends respectively, and the pressure transmission bag that is connected with accumulator is communicated with lubricating cup on the last packing box; Washing pipe one end is used packing box and is sealed and installed with the mud packing and is fixed as one with loam cake together, the other end of washing pipe with packing box down be sealed and installed with the mud packing and together union and the central tube by built-in trapezoidal thread connect as one.The utility model is converted to oil pressure by the pressure transmission bag with mud pressure and enters the packing unit rear portion and come the pressure of balance mud to packing_seal.
The mud packing of washing pipe lower end is fixed on down in the packing box by sealed pressing sleeve and union and central tube by built-in trapezoidal thread connect as one.
The utility model advantage is compared with prior art, solved following technical problem: the water tap sealed packing device of the band pressure transmission bag of design can be converted to oil pressure with mud pressure by the pressure transmission bag and come the pressurized situation of balanced seal spare to slow down the wearing and tearing of seal, the application life of prolongation washing pipe assembly.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
Fig. 1 has provided the utility model specific embodiment.A kind of oil-well rig water tap washing pipe assembly with the pressure transmission bag, it comprises uses the mud packing 3 that packing box 2 and following packing box 6 are fixed on washing pipe 1 two ends respectively, and the pressure transmission bag 4 that is connected with accumulator 5 is communicated with lubricating cup on the last packing box 2; Washing pipe 1 one ends are used packing box 2 and are sealed and installed with mud packing 3 and are fixed as one with loam cake together, washing pipe 1 an other end with packing box 6 down be sealed and installed with mud packing 3 and together union and the central tube by built-in trapezoidal thread connect as one.The mud packing 3 of washing pipe 1 lower end is fixed on down in the packing box 6 by sealed pressing sleeve 7 and union and central tube by built-in trapezoidal thread connect as one.
The principle of the utility model sealed packing device as shown in Figure 1, be divided into two parts, to be following packing box that packing is housed fix by bolt or union and central tube in the lower end of washing pipe, washing pipe rotates with central tube by sealed pressing sleeve 7, washing pipe is formed and the upper end is made up of last packing box 2, mud packing 3 etc., fit together the back and they and loam cake are fixed together by bolt or union.The pressure that comes from slurry channel is converted to oil pressure by pressure transmission bag 4 with mud pressure and enters the packing unit rear portion and come the pressure of balance mud to packing_seal, because be isobaric conversion, so packing pressurized up and down is intimate equal, makes mud be difficult for entering in the packing_seal spare, so reduced the wearing and tearing of seal; And when mud pressure is ended, the pressure of continuity might cause the oil product loss, this part hydraulic oil of loss both can play the function that stops mud to enter packing_seal, can clean sealing again to reduce the corrosion of mud to sealing, this sub-fraction is penetrated into the hydraulic oil that goes in the mud and can compensates at any time by accumulator 5, so just improve sealing effectiveness, prolonged the application life of washpipe packing, improved the drilling well economic benefit.
Claims (2)
1, a kind of oil-well rig water tap washing pipe assembly with the pressure transmission bag, it is characterized in that comprising and use the mud packing (3) that packing box (2) and following packing box (6) are fixed on washing pipe (1) two ends respectively that the pressure transmission bag (4) that is connected with accumulator (5) is communicated with lubricating cup on the last packing box (2); Washing pipe (1) one end is used packing box (2) and is sealed and installed with mud packing (3) and is fixed as one with loam cake together, the other end of washing pipe (1) with packing box (6) down be sealed and installed with mud packing (3) and together union and the central tube by built-in trapezoidal thread connect as one.
2, the oil-well rig water tap washing pipe assembly of band pressure transmission bag according to claim 1, the mud packing (3) that it is characterized in that washing pipe (1) lower end are fixed on down in the packing box (6) by sealed pressing sleeve (7) and union and central tube by built-in trapezoidal thread connect as one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200312390U CN201159060Y (en) | 2007-02-09 | 2007-02-09 | Wash pipe assembly for oil-well rig water tap with pressure transmission bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200312390U CN201159060Y (en) | 2007-02-09 | 2007-02-09 | Wash pipe assembly for oil-well rig water tap with pressure transmission bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201159060Y true CN201159060Y (en) | 2008-12-03 |
Family
ID=40109646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200312390U Expired - Fee Related CN201159060Y (en) | 2007-02-09 | 2007-02-09 | Wash pipe assembly for oil-well rig water tap with pressure transmission bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201159060Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608002A (en) * | 2019-09-20 | 2019-12-24 | 四川昆仑石油设备制造有限公司 | Washing pipe assembly |
-
2007
- 2007-02-09 CN CNU2007200312390U patent/CN201159060Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608002A (en) * | 2019-09-20 | 2019-12-24 | 四川昆仑石油设备制造有限公司 | Washing 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081203 Termination date: 20130209 |