CN201106403Y - Wire cable sealing device special for casing tube welldrilling - Google Patents
Wire cable sealing device special for casing tube welldrilling Download PDFInfo
- Publication number
- CN201106403Y CN201106403Y CNU2007201905656U CN200720190565U CN201106403Y CN 201106403 Y CN201106403 Y CN 201106403Y CN U2007201905656 U CNU2007201905656 U CN U2007201905656U CN 200720190565 U CN200720190565 U CN 200720190565U CN 201106403 Y CN201106403 Y CN 201106403Y
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- China
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- urceolus
- wire rope
- screw
- taper hole
- sealing device
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- Expired - Lifetime
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Abstract
The utility model relates to a special wire rope sealing device for casing drilling, which is applied to the construction the casing drilling, and is characterized in that a cylinder lining is sleeved in an outer cylinder, and a sealing rubber core with a center hole is arranged in the lining. The top of the sealing rubber core is provided with an annular cushion block, and a screw thread of the top of the outer cylinder is provided with a taper hole screw. A center hole of the taper hole screw is in shape of an taper with a bigger upper part and a smaller lower part, and the bottom of the taper hole screw is pressed at the upper part of the annular cushion block. The effect is that the action of the sealing of the wire rope can be played in the construction of the casing drilling, and compared with a traditional device, the special wire rope sealing device for the casing drilling has the advantages of good sealing effect, long service life and convenient sealing body replacement, etc.
Description
Technical field:
The utility model relates to the petroleum drilling technology field, and particularly a kind of instrument in the casing drilling construction is special-purpose wire rope sealing device in a kind of casing drilling construction specifically.
Background technology:
Casing drilling is a kind of emerging oil drilling method, adopts sleeve pipe to substitute drilling rod and also directly drives drill bit, has greatly simplified the operation procedure in drilling well, the well cementation, has reduced accident rate, has reduced drilling cost.In the sleeve in oil field wellbore construction, downhole tool damages, bit wear needs to change.Need to adopt wire rope to remove downhole tool or bit change more.When carrying out casing drilling, for improving the wireline trip condition wire rope sealing device has been installed all, sealing device is connected pumping on the pipe nipple of kelly bar lower end.The wire rope sealing device mainly is to be used for wire rope is sealed.Because the wire rope speed that moves up and down is fast, that existing wire rope sealing device also exists is poorly sealed, the life-span is very short, result of use is bad wait not enough.
The utility model content
The purpose of this utility model is: a kind of casing drilling special steel wire rope sealing device is provided, can plays the wire rope sealing function in casing drilling construction, have advantages such as good sealing effect, long service life, replacing seal be more convenient.For the casing drilling construction provides a kind of safer, reliable wire rope sealing device.
The technical solution adopted in the utility model is: casing drilling special steel wire rope sealing device mainly is made up of taper hole screw, packing unit and urceolus.Urceolus has the end, and outer tube bottom has centre bore.Step is arranged in the urceolus, and there is screw thread on the urceolus top.It is characterized in that: in urceolus, be set with cylindric lining, the packing unit that has centre bore is housed in the lining.The packing unit that has centre bore can make wire rope pass through, and plays sealing function.At the top of packing unit 4 annular cushion block is arranged.There is the taper hole screw at screw top place at urceolus.The centre bore of taper hole screw is up big and down small taper.The bottom of taper hole screw is pressed in annular cushion block top.Screw the taper hole screw and just can compress packing unit by annular cushion block.
Take out for convenience and change packing unit, the screw hole of symmetry is arranged at the top of lining.Outward winding behind the taper hole screw, in the screw hole of lining, screw in the taking-up instrument, can easily lining be taken out and change packing unit.
In order to improve sealing between urceolus and the lining, the O RunddichtringO is arranged between urceolus and lining.
Screw the taper hole screw for convenience, the handle hole of the symmetry of horizontal direction is arranged on the taper hole screw.
Mode such as can adopt welding, be threaded is connected well head with casing drilling special steel wire rope sealing device and pumps on the pipe nipple.Realization is to the sealing of wire rope.Lay down the taper hole screw, pull out lining, can change packing unit.
The beneficial effects of the utility model: the utility model casing drilling special steel wire rope sealing device, can play the wire rope sealing function in the casing drilling construction.Compare with the conventional seals device, this casing drilling special steel wire rope sealing device has advantages such as good sealing effect, long service life, seal replacing convenience.
Description of drawings
Fig. 1 is the utility model casing drilling special steel wire rope sealing device structure generalized section.
Among the figure, 1. taper hole screw, 2. annular cushion block 2,3. lining, 4. packing unit, 5. urceolus, 6. wire rope, 7.O RunddichtringO, 8. screw, 9. handle hole.
The specific embodiment
Embodiment 1: consult Fig. 1.Be applicable to that with one diameter is that the casing drilling special steel wire rope sealing device of 16 millimeters wire rope 6 is an example, is elaborated.The external diameter of urceolus 5 is 90 millimeters, and internal diameter is 55 millimeters, and length is 260 millimeters.Urceolus 5 has the end, and a center taper hole is arranged at urceolus 5 bottoms.A ring-shaped step is arranged in the urceolus 5, and there is internal thread on urceolus 5 tops.In urceolus 5, be set with length and be 200 millimeters cylindric lining 3.The screw hole 8 that 2 symmetries are arranged at the top of lining 3.The packing unit 4 that has centre bore is arranged in the cylindric lining 3.The packing unit 4 that has centre bore can make wire rope 6 pass through, and plays sealing function.It is 30 millimeters annular cushion block 2 that thickness is arranged at the top of packing unit 4.There is taper hole screw 1 at screw top place at urceolus 5.The centre bore of taper hole screw 1 is up big and down small taper.The handle hole 9 that the symmetry of horizontal direction is arranged on taper hole screw 1.The bottom of taper hole screw 1 is pressed in annular cushion block 2 tops.Screw taper hole screw 1 and just can compress packing unit 4 by annular cushion block 2.Twice O RunddichtringO 7 is arranged between urceolus 5 and lining 3.
Embodiment 2: consult Fig. 1.Substantially the same manner as Example 1, difference is: there is external screw thread on urceolus 5 tops, and internal thread is arranged at taper hole screw 1 bottom.Urceolus 5 top external screw threads cooperate with taper hole screw 1 lower internal thread.
Claims (4)
1, a kind of casing drilling special steel wire rope sealing device, mainly by taper hole screw (1), packing unit (4) and urceolus (5) are formed, urceolus (5) has the end, centre bore is arranged at urceolus (5) bottom, urceolus has step in (5), there is screw thread on urceolus (5) top, it is characterized in that: in urceolus (5), be set with cylindric lining (3), the packing unit (4) that has centre bore is housed in the lining (3), at the top of packing unit (4) annular cushion block (2) is arranged, at the screw top place of urceolus (5) taper hole screw (1) is arranged, the centre bore of taper hole screw (1) is up big and down small taper, and the bottom of taper hole screw (1) is pressed in annular cushion block (2) top.
2, casing drilling special steel wire rope sealing device according to claim 1 is characterized in that: the screw hole (8) that symmetry is arranged at the top of described lining (3).
3, casing drilling special steel wire rope sealing device according to claim 1 is characterized in that: between urceolus (5) and lining (3) O RunddichtringO (7) is arranged.
4, according to claim 1 or 2 or 3 described casing drilling special steel wire rope sealing devices, it is characterized in that: the handle hole (9) that the symmetry of horizontal direction is arranged on taper hole screw (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201905656U CN201106403Y (en) | 2007-12-04 | 2007-12-04 | Wire cable sealing device special for casing tube welldrilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201905656U CN201106403Y (en) | 2007-12-04 | 2007-12-04 | Wire cable sealing device special for casing tube welldrilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201106403Y true CN201106403Y (en) | 2008-08-27 |
Family
ID=39958203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201905656U Expired - Lifetime CN201106403Y (en) | 2007-12-04 | 2007-12-04 | Wire cable sealing device special for casing tube welldrilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201106403Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775750A (en) * | 2012-10-23 | 2014-05-07 | 中国石油天然气集团公司 | Coiled tubing cable-penetrating sealing device |
-
2007
- 2007-12-04 CN CNU2007201905656U patent/CN201106403Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775750A (en) * | 2012-10-23 | 2014-05-07 | 中国石油天然气集团公司 | Coiled tubing cable-penetrating sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080827 |
|
| CX01 | Expiry of patent term |