CN106869836A - A kind of inner equilibrium metal sealing washing pipe assembly of top-drive device - Google Patents
A kind of inner equilibrium metal sealing washing pipe assembly of top-drive device Download PDFInfo
- Publication number
- CN106869836A CN106869836A CN201710137868.XA CN201710137868A CN106869836A CN 106869836 A CN106869836 A CN 106869836A CN 201710137868 A CN201710137868 A CN 201710137868A CN 106869836 A CN106869836 A CN 106869836A
- Authority
- CN
- China
- Prior art keywords
- assembly
- sealing
- ring
- washing pipe
- union
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 54
- 238000005406 washing Methods 0.000 title claims abstract description 25
- 239000002184 metal Substances 0.000 title claims abstract description 16
- 238000005553 drilling Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 244000261422 Lysimachia clethroides Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/02—Swivel joints in hose-lines
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B3/00—Rotary drilling
- E21B3/02—Surface drives for rotary drilling
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention discloses a kind of inner equilibrium metal sealing washing pipe assembly of top-drive device, including upper assembly and lower assembly, the upper assembly is inserted in the lower assembly and is fixedly connected, and the upper assembly includes the first union, sealing sliding sleeve, pressure-bearing buoyancy body and stationary seal ring, connecting bolt, spring assembly, 0 type sealing ring；The lower assembly includes the second union, moving sealing ring, O-ring seal.The present invention has advantages below：Simple structure, it is easy to process, it is easy to volume production, and low production cost；Convenient disassembly in operation, application prospect is good, can be supported the use with active service well drilling top drive；Inner equilibrium metal sealing washing pipe, effectively improves the degree of balance, it is ensured that the strict sealing of instrument, lifts the service life of assembly, while convenient disassembly can reduce repairing downtime, improves operation timeliness.
Description
Technical field
The present invention relates to the drilling engineering technical field of auxiliary equipment of the resources such as petroleum gas, underground heat, and in particular to one
Plant the inner equilibrium metal sealing washing pipe assembly of top-drive device.
Background technology
Well drilling top drive needs, by the cycle of higher pressure fluid passage of washing pipe assembly, constantly to inject in the drilling well course of work
In cleaner for high-pressure drilling fluid to drilling rod.The washing pipe assembly that oil drilling top is driven is a connection between rotary system and the circulatory system
Part, major function is showed both ways：First, washing pipe assembly it is upper and lower be respectively necessary for being fastened on gooseneck and spindle end ensure height
Pressure drilling fluid circulation；In addition, washing pipe assembly needs enough thrusts to be fixed static and dynamic sealing ring to form strict sealing
State ensures that internal high pressure drilling fluid does not leak under rotation status.
At present, washing pipe assembly is divided into packing_seal and the class of mechanical seal two according to seal type.But in use, packing and
Central tube is easily damaged needs frequent dismounting and change.Its reason is as follows：Packing_seal washing pipe all working pressure concentrates on sealing ring
On, easily seal failure；, there is high cost and remove and install process complexity in mechanical seal washing pipe, and the core technology is by state
Outer company monopolizing, and there is spring compensator deficiency, partial eccentricity abrasion dynamic and static ring phenomenon, it is difficult to by adjusting gapping of spring
Improve leakage problem, it is often more important that, mechanical seal washing pipe is difficult to that seawater is fully sealed.Tool statistics, the oil drilling punching in Weizhou
Pipe uses only 40 hours average time, particularly in poor radiation, the oil base drilling fluid operation that temperature is high, viscosity is high, averagely
Use time only 1 day.
Therefore current washing pipe assembly common problem：Dismounting is complicated, and sealing effectiveness is poor, the features such as poor reliability.
The content of the invention
Regarding to the issue above, the present invention is intended to provide a kind of assembly and disassembly top simple, easy to process and long service life is driven
The inner equilibrium metal sealing washing pipe assembly of dynamic device.
To realize the technical purpose, the solution of the present invention is：A kind of inner equilibrium metal sealing washing pipe of top-drive device
Assembly, including upper assembly and lower assembly, the upper assembly are inserted in the lower assembly and are fixedly connected, and the upper assembly includes the
One union, sealing sliding sleeve, pressure-bearing buoyancy body and stationary seal ring, connecting bolt, spring assembly, 0 type sealing ring；The lower assembly bag
Include the second union, moving sealing ring, O-ring seal.
Preferably, the upper assembly is fixedly connected with the lower assembly by connecting bolt.
Preferably, spring assembly is additionally provided between the sealing sliding sleeve and the pressure-bearing buoyancy body, and positioned at described
Between connecting bolt and the sealing sliding sleeve body, the upper assembly is circumferentially upper uniform 16 with the lower assembly outer wall.
Preferably, the stationary seal ring upper end is connected with the pressure-bearing buoyancy body；The stationary seal ring lower end with it is described
Moving sealing ring is contacted, and can diametrically be relatively rotated between the stationary seal ring lower end and the moving sealing ring face and face, its
The center-hole diameter of the stationary seal ring is matched with the central tube of supporting described upper assembly, the stationary seal ring it is radially total
It is free to rotate into central tube.
Preferably, the second union upper end is connected with the moving sealing ring, the second union lower end connects with main shaft
Connect, the center-hole diameter of second union matches with the central tube of the lower assembly.
Preferably, the connecting bolt size is matched with main shaft connection screw thread size.
The present invention has advantages below：Simple structure, it is easy to process, it is easy to volume production, and low production cost；In operating process
Middle convenient disassembly, application prospect is good, can be supported the use with active service well drilling top drive；Inner equilibrium metal sealing washing pipe, effectively improves
The degree of balance, it is ensured that the strict sealing of instrument, lifts the service life of assembly, while when convenient disassembly can reduce repairing shut-down
Between, improve operation timeliness.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
In figure：1-the first union；2-sealing sliding sleeve；3-connecting bolt；4-spring assembly；5-pressure-bearing buoyancy body；
6-stationary seal ring；7-moving sealing ring；8-the second union；9-o type sealing rings.
Specific embodiment
The present invention is described in further details with specific embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of inner equilibrium metal sealing punching of top-drive device of optimal specific embodiment of the invention
Pipe assembly, including upper assembly and lower assembly, the upper assembly are inserted in the lower assembly and are fixedly connected, and the upper assembly includes
First union 1, sealing sliding sleeve 2, pressure-bearing buoyancy body 5 and stationary seal ring 6, connecting bolt 3, spring assembly 4,0 type sealing ring 9；Institute
Stating lower assembly includes the second union 8, moving sealing ring 7, O-ring seal 9.
Preferably, the upper assembly is fixedly connected with the lower assembly by connecting bolt 3.
Preferably, spring assembly 4 is additionally provided between the sealing sliding sleeve 2 and the pressure-bearing buoyancy body 5, and positioned at institute
State between connecting bolt 3 and the sealing body of sliding sleeve 2, the upper assembly is circumferentially upper uniform 16 with the lower assembly outer wall.
Preferably, the upper end of the stationary seal ring 6 is connected with the pressure-bearing buoyancy body 5；The lower end of the stationary seal ring 6 and institute
State moving sealing ring 7 to contact, and relative can diametrically turn between the lower end of the stationary seal ring 6 and the face of the moving sealing ring 7 and face
Dynamic, the center-hole diameter of its stationary seal ring 6 is matched with the central tube of supporting described upper assembly, the stationary seal ring 6
Radially assembly central tube is free to rotate.
Preferably, the upper end of the second union 8 is connected with the moving sealing ring 7, the lower end of the second union 8 and main shaft
Connection, the center-hole diameter of second union 8 matches with the central tube of the lower assembly.
Preferably, the size of the connecting bolt 3 is matched with main shaft connection screw thread size.
The present invention has advantages below：Simple structure, it is easy to process, it is easy to volume production, and low production cost；In operating process
Middle convenient disassembly, application prospect is good, can be supported the use with active service well drilling top drive；Inner equilibrium metal sealing washing pipe, effectively improves
The degree of balance, it is ensured that the strict sealing of instrument, lifts the service life of assembly, while when convenient disassembly can reduce repairing shut-down
Between, improve operation timeliness.
The purpose of the present invention is achieved through the following technical solutions：
1) install
1. the second union special spanner is tightened and adjusts tolerance to optimum position；
2. the first union is manually installed and tightens and lubricating grease is smeared to junction and O-ring seal；
3. by seal sliding sleeve bolt hole alignd with the screwed hole of the first union, and tighten hex screw, rotation first by
Nonyl to other screw is installed in place；
4. stationary ring is placed on rotating ring and adjusts gapping of spring and pretightning force, tighten screw.
2) pressure testing
1. connect band check-valves pressure line is to pressure testing mouthful；
2. according to the up and down union hydraulic fluid chamber injection hydraulic medium of standard, hydraulic pressure strength to setting.Pressure testing grade：
1.5Mpa, 5Mpa, 15Mpa and 30Mpa, are required to pressurize 5 minutes.
3) dynamic and static ring changes program
1. the mud and foreign matter on washing pipe periphery are cleared up；
2. hexagonal holding screw in union is unscrewed；
3. spring is unscrewed by pressure regulation cap to top；
4. hex nut is adjusted with instrument, piece number is sealed sliding sleeve lower sleeve gasket upward sliding, alignment pin skids off stationary ring groove
Hole；
5. stationary ring, rotating ring are taken out；
6. new stationary ring is placed on rotating ring and adjusts gapping of spring and pretightning force, tighten screw.
The above, only presently preferred embodiments of the present invention is not intended to limit the invention, every according to skill of the invention
Any trickle amendment, equivalent and improvement that art is substantially made to above example, should be included in technical solution of the present invention
Protection domain within.
Claims (6)
1. the inner equilibrium metal sealing washing pipe assembly of a kind of top-drive device, it is characterised in that：Including upper assembly and lower assembly,
The upper assembly is inserted in the lower assembly and is fixedly connected, and the upper assembly includes that the first union, sealing sliding sleeve, pressure-bearing are floated
Body and stationary seal ring, connecting bolt, spring assembly, 0 type sealing ring；The lower assembly includes the second union, moving sealing ring, O-shaped
Sealing ring.
2. the inner equilibrium metal sealing washing pipe assembly of top-drive device according to claim 1, it is characterised in that：It is described
Upper assembly is fixedly connected with the lower assembly by connecting bolt.
3. the inner equilibrium metal sealing washing pipe assembly of top-drive device according to claim 2, it is characterised in that：Institute
State and be additionally provided with spring assembly between sealing sliding sleeve and the pressure-bearing buoyancy body, and positioned at the connecting bolt and the sealing sliding sleeve
Between body, the upper assembly is circumferentially upper uniform 16 with the lower assembly outer wall.
4. the inner equilibrium metal sealing washing pipe assembly of top-drive device according to claim 1, it is characterised in that：It is described
Stationary seal ring upper end is connected with the pressure-bearing buoyancy body；The stationary seal ring lower end contacts with the moving sealing ring, and described close
Can diametrically be relatively rotated between envelope stationary ring lower end and the moving sealing ring face and face, the centre bore of its stationary seal ring is straight
Footpath matches with the central tube of supporting described upper assembly, and the radially assembly central tube of the stationary seal ring is free to rotate.
5. the inner equilibrium metal sealing washing pipe assembly of top-drive device according to claim 1, it is characterised in that：It is described
Second union upper end is connected with the moving sealing ring, and the second union lower end is connected with main shaft, the center of second union
Bore dia matches with the central tube of the lower assembly.
6. the inner equilibrium metal sealing washing pipe assembly of top-drive device according to claim 1, it is characterised in that：It is described
Connecting bolt size is matched with main shaft connection screw thread size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710137868.XA CN106869836A (en) | 2017-03-09 | 2017-03-09 | A kind of inner equilibrium metal sealing washing pipe assembly of top-drive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710137868.XA CN106869836A (en) | 2017-03-09 | 2017-03-09 | A kind of inner equilibrium metal sealing washing pipe assembly of top-drive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106869836A true CN106869836A (en) | 2017-06-20 |
Family
ID=59170362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710137868.XA Pending CN106869836A (en) | 2017-03-09 | 2017-03-09 | A kind of inner equilibrium metal sealing washing pipe assembly of top-drive device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106869836A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259397A (en) * | 2019-05-30 | 2019-09-20 | 北京石油机械有限公司 | A kind of mechanical sealing washing pipe assembly |
| 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 |
| CN112727387A (en) * | 2020-09-16 | 2021-04-30 | 重庆胤合石油化工机械制造有限公司 | Novel combined pipe flushing device of neck-driven drilling device |
| CN112761543A (en) * | 2021-02-07 | 2021-05-07 | 西南石油大学 | High-pressure sealing washing pipe capable of adapting to axial and radial offset |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201973241U (en) * | 2011-01-26 | 2011-09-14 | 龙显杏 | Mechanical sealing device |
| CN204113106U (en) * | 2014-08-21 | 2015-01-21 | 黄北平 | Washing pipe assembly and top drive drilling system are driven in mechanical seal top |
| CN105156050A (en) * | 2015-06-19 | 2015-12-16 | 北京捷杰西石油设备有限公司 | Petroleum and natural gas drilling washpipe assembly |
| CN206647067U (en) * | 2017-03-09 | 2017-11-17 | 中国海洋石油总公司 | A kind of inner equilibrium metal sealing washing pipe assembly of top-drive device |
-
2017
- 2017-03-09 CN CN201710137868.XA patent/CN106869836A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201973241U (en) * | 2011-01-26 | 2011-09-14 | 龙显杏 | Mechanical sealing device |
| CN204113106U (en) * | 2014-08-21 | 2015-01-21 | 黄北平 | Washing pipe assembly and top drive drilling system are driven in mechanical seal top |
| CN105156050A (en) * | 2015-06-19 | 2015-12-16 | 北京捷杰西石油设备有限公司 | Petroleum and natural gas drilling washpipe assembly |
| CN206647067U (en) * | 2017-03-09 | 2017-11-17 | 中国海洋石油总公司 | A kind of inner equilibrium metal sealing washing pipe assembly of top-drive device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259397A (en) * | 2019-05-30 | 2019-09-20 | 北京石油机械有限公司 | A kind of mechanical sealing washing pipe assembly |
| CN110259397B (en) * | 2019-05-30 | 2023-09-29 | 北京石油机械有限公司 | Novel mechanical seal flushing pipe assembly |
| 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 |
| CN112727387A (en) * | 2020-09-16 | 2021-04-30 | 重庆胤合石油化工机械制造有限公司 | Novel combined pipe flushing device of neck-driven drilling device |
| CN112727387B (en) * | 2020-09-16 | 2022-12-20 | 重庆胤合石油化工机械制造有限公司 | Novel combined pipe flushing device of neck driving well drilling device |
| CN112761543A (en) * | 2021-02-07 | 2021-05-07 | 西南石油大学 | High-pressure sealing washing pipe capable of adapting to axial and radial offset |
| CN112761543B (en) * | 2021-02-07 | 2022-03-29 | 西南石油大学 | High-pressure sealing washing pipe capable of adapting to axial and radial offset |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170620 |
|
| RJ01 | Rejection of invention patent application after publication |