CN201068741Y - Hexagonal bore rod - Google Patents
Hexagonal bore rod Download PDFInfo
- Publication number
- CN201068741Y CN201068741Y CNU2007200131272U CN200720013127U CN201068741Y CN 201068741 Y CN201068741 Y CN 201068741Y CN U2007200131272 U CNU2007200131272 U CN U2007200131272U CN 200720013127 U CN200720013127 U CN 200720013127U CN 201068741 Y CN201068741 Y CN 201068741Y
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- CN
- China
- Prior art keywords
- outer tube
- inner tube
- contact
- lower contact
- interior pipe
- 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
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Abstract
A novel hexagonal kelly used for petroleum well drilling operation consists of a splicing obturating ring, an outer tube lower contact, an inner tube lower contact, an inner tube body, an outer tube drive body, an inner tube fixed pipe nipple, a contact obturating ring, an inner tube upper contact, and an outer tube upper contact, wherein, the inner tube body is respectively in screwed connection with the inner tube lower contact and the inner tube fixed pipe nipple, the upper end of the inner tube fixed pipe nipple is in screwed connection with the outer tube upper contact and gets sealed with the contact obturating ring, both the inner tube upper contact and the outer tube upper contact are in screwed connection with the inner tube fixed pipe nipple, the splicing obturating ring is sleeved at the lower end of the inner tube lower contact, the outer tube upper contact is in screwed connection with the inner tube lower contact, and a hexagonal roller bushing is sleeved on the outer tube drive body. The kelly solves the problem in the prior art that the general vertical pipe charging well drilling cannot be applied to the horizontal well and the side drilling horizontal well because of being controlled by the borehole trace and the limitation for using a downhole motor. The utility model can be widely applied to the petroleum well drilling operation.
Description
Technical field:
The utility model relates to a kind of novel hexagonal kelly that a kind of petroleum drilling operation is used.
Background technology:
Recover the oil in the oil field at present, and the restriction that conventional standpipe air-filling well-drilling mode is used by hole trajectory control and mud motor can not be applied to special wells such as horizontal well, sidetracking well.Influenced the enforcement of special well in low pressure reservoirs.The double-walled well drilling technology can be used under the prerequisite of problem solving hole trajectory control such as horizontal well and mud motor, realize the drilling well of low-pressure stratum, but it needs instruments such as supporting special-purpose hexagonal kelly, and oilfield applications is not seen report as yet at present.
The utility model content:
The purpose of this utility model provides a kind of novel hexagonal kelly, and this drilling rod has solved the problem that restriction that standpipe air-filling well-drilling mode conventional in the prior art uses by hole trajectory control and mud motor can not be applied to horizontal well, sidetrack horizontal well.This novel hexagonal kelly be a kind of twin-channel hexagonal kelly of newly developing it be to utilize central tube normally to pump into mud, and the annular space that utilizes central tube and outer tube injects air between the annular space of the drilling rod and the borehole wall, the pure liquid phase state that keeps central tube makes MWD become feasible to hole trajectory control with the use of the power drilling tool of going into the well.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of novel hexagonal kelly is by the grafting sealing ring, the outer tube lower contact, the lower contact of interior pipe, interior tube body, the outer tube driving body, interior pipe is pipe nipple fixedly, the joint sealing circle, the top connection of interior pipe, the outer tube top connection is formed: interior tube body respectively with interior pipe lower contact, the fixedly pipe nipple screwed connection of interior pipe, interior pipe fixedly seals with the joint sealing circle with outer tube top connection screwed connection the pipe nipple upper end, the top connection of interior pipe, the outer tube top connection all with the fixedly pipe nipple screwed connection of interior pipe, the grafting sealing ring is enclosed within interior pipe lower contact lower end, outer tube top connection and interior pipe lower contact screwed connection are enclosed within six side's roller bushings on the outer tube driving body.Outer tube top connection and upper water tap outer tube, outer tube lower contact and bottom drilling rod outer tube screwed connection during work after whole kelly bar assembling is finished, form the drilling fluid passage at interior tube hub, and the gap between interior pipe and outer tube forms the gas injection passage.
The beneficial effects of the utility model are simple in structure, and are easy to operate, for double-walled well drilling provides the novel kelly bar that drives drilling tool rotation in the well and realize the well head excellent sealing, and perfect double-walled well drilling technology.
Description of drawings:
Accompanying drawing is the utility model overall structure schematic diagram.
Among the figure 1, the grafting sealing ring, 2, the outer tube lower contact, 3, interior pipe lower contact, 4, interior tube body, 5, the outer tube driving body, 6, the fixing pipe nipple of interior pipe, 7, the joint sealing circle, 8, interior pipe top connection, 9, the outer tube top connection.
The specific embodiment:
In the accompanying drawings, a kind of novel hexagonal kelly is by grafting sealing ring 1, outer tube lower contact 2, the lower contact 3 of interior pipe, interior tube body 4, outer tube driving body 5, interior pipe is pipe nipple 6 fixedly, joint sealing circle 7, the top connection 8 of interior pipe, outer tube top connection 9 is formed: interior tube body 4 respectively with interior pipe lower contact 3, fixedly pipe nipple 6 screwed connections of interior pipe, in pipe fixedly pipe nipple 6 upper ends and outer tube top connection 9 screwed connections seal with joint sealing circle 7, the top connection 8 of interior pipe, outer tube top connection 9 all with fixedly pipe nipple 6 screwed connections of interior pipe, grafting sealing ring 1 is enclosed within interior pipe lower contact 3 lower ends, outer tube top connection 2 and interior pipe lower contact 3 screwed connections are enclosed within six side's roller bushings on the outer tube driving body 5.
Claims (1)
1. a novel hexagonal kelly is by grafting sealing ring (1), outer tube lower contact (2), the lower contact (3) of interior pipe, interior tube body (4), outer tube driving body (5), interior pipe is pipe nipple (6) fixedly, joint sealing circle (7), the top connection (8) of interior pipe, outer tube top connection (9) is formed, it is characterized in that: interior tube body (4) respectively with interior pipe lower contact (3), fixedly pipe nipple (6) screwed connection of interior pipe, interior pipe fixedly seals with joint sealing circle (7) with outer tube top connection (9) screwed connection pipe nipple (6) upper end, the top connection (8) of interior pipe, outer tube top connection (9) all with fixedly pipe nipple (6) screwed connection of interior pipe, grafting sealing ring (1) is enclosed within interior pipe lower contact (3) lower end, outer tube top connection (2) and interior pipe lower contact (3) screwed connection are enclosed within six side's roller bushings on the outer tube driving body (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200131272U CN201068741Y (en) | 2007-07-05 | 2007-07-05 | Hexagonal bore rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200131272U CN201068741Y (en) | 2007-07-05 | 2007-07-05 | Hexagonal bore rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201068741Y true CN201068741Y (en) | 2008-06-04 |
Family
ID=39490121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200131272U Expired - Fee Related CN201068741Y (en) | 2007-07-05 | 2007-07-05 | Hexagonal bore rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201068741Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108643844A (en) * | 2018-04-13 | 2018-10-12 | 河南中原特钢装备制造有限公司 | Superlong array square kelly and processing method |
| CN109736718A (en) * | 2019-01-30 | 2019-05-10 | 南通永大管业股份有限公司 | It is a kind of to stablize removable boring rod set |
| CN109826569A (en) * | 2019-01-30 | 2019-05-31 | 南通永大管业股份有限公司 | Boring rod set is rotated in the middle part of big hydrophthalmia |
-
2007
- 2007-07-05 CN CNU2007200131272U patent/CN201068741Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108643844A (en) * | 2018-04-13 | 2018-10-12 | 河南中原特钢装备制造有限公司 | Superlong array square kelly and processing method |
| CN109736718A (en) * | 2019-01-30 | 2019-05-10 | 南通永大管业股份有限公司 | It is a kind of to stablize removable boring rod set |
| CN109826569A (en) * | 2019-01-30 | 2019-05-31 | 南通永大管业股份有限公司 | Boring rod set is rotated in the middle part of big hydrophthalmia |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080604 Termination date: 20110705 |