CN203756028U - Half-rotation tool of drilling string - Google Patents
Half-rotation tool of drilling string Download PDFInfo
- Publication number
- CN203756028U CN203756028U CN201320881803.3U CN201320881803U CN203756028U CN 203756028 U CN203756028 U CN 203756028U CN 201320881803 U CN201320881803 U CN 201320881803U CN 203756028 U CN203756028 U CN 203756028U
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- China
- Prior art keywords
- half way
- way rotation
- shaft
- rotation
- keyway
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Abstract
The utility model discloses a half-rotation tool of a drilling string (pipe column). The half-rotation tool of the drilling string comprises an upper connector, a half-rotation spline shaft, a half-rotation keyway shaft, a small end cover and a lower connector, wherein a plurality of splines are uniformly distributed on the lower part of the outer surface of the half-rotation spline shaft along the axial direction; the two ends of each spline are of chamfer designs; the half-rotation spline shaft is sleeved in the half-rotation keyway shaft; axially through long keyways and semi-closed short keyways are formed in the positions close to the center of the inner surface of the half-rotation keyway shaft in a staggered manner; the widths and the distances of the long keyways and the short keyways are respectively equal to the widths and the spaces of the splines; the upper part of the half-rotation keyway shaft is connected with the small end cover; the small end cover is sealed and matched with the half-rotation spline shaft in a sliding and rotating manner; the lower part of the half-rotation keyway shaft is connected with the lower connector; the upper part of the half-rotation spline shaft is connected with the upper connector. By using the tool, the drilling string can be rotated or slid, the wear and resistance reducing effect is also removable, meanwhile, the tool is easy and convenient to operate, the length of an upright post can be reduced, and the drilling operation cost is reduced.
Description
Technical field
The utility model relates to a kind of drill string (or tubing string) half way throw in oil and gas well drilling power tool field.
Background technology
Along with fast integration and the renewal of oil and gas development technology, favor more and more in Advanced Drilling Technologies such as adopting directional well, Multilateral Wells, horizontal well, extended reach well and carry out development of fields oil company both domestic and external.And the horizontal movement of Oil/gas Well, towards increasing trend development, in the time that the ratio of displacement and vertical depth exceedes 2, will produce very large frictional resistance and moment of torsion.Excessive frictional resistance and moment of torsion can produce drill string self-locking, bending deformation, the pressure of the drill cannot normal delivery to drill bit, the tool wear series of problems such as drill string, sleeve pipe.Bring acid test to the highly difficult Holes of Complicated Wells drilling wells such as extended reach well, directional well.At present, also there is relevant anti-attrition methods to reduce resistance both at home and abroad, have plenty of the less elastomeric material of the friction factor of employing, have plenty of applying rolling bearing.But these methods still exist some problems, some instruments are not suitable for high temperature well section and barefoot interval, additionally increase joint too much, have increased to a great extent cost, and are unfavorable for the removing of wellbore stability and landwaste.
Summary of the invention
The utility model object is in order to overcome deficiency of the prior art, while providing one to be applied to high temperature well section and barefoot interval, largely play anti-attrition and fall resistance effect, and cost is lower, is conducive to the discharge drill string half way throw of landwaste.
The utility model is to solve the problems of the technologies described above to be achieved through the following technical solutions:
A kind of drill string half way throw, comprise top connection, half way rotation splined shaft, half way rotation key fluted shaft, small end cover and lower contact, wherein: half way rotation splined shaft external surface bottom uniform several splines vertically, the two ends of spline are chamfer design, half way rotation hub splines is in half way rotation key fluted shaft inside, near interleaved long keyway and the semi-enclosed short keyway that is provided with axial perforation in the middle of half way rotation key fluted shaft inner surface, the groove width of long keyway and short keyway and slot pitch are wide suitable with spacing with the key of spline respectively, half way rotation key fluted shaft top is connected with small end cover, small end cover forms slip with half way rotation splined shaft and rotatory sealing coordinates, half way rotation key fluted shaft bottom is connected with lower contact, half way rotation splined shaft top is connected with top connection.
Such scheme also comprises: between half way rotation key fluted shaft and lower contact, bearing is installed.
The upper/lower terminal of long keyway adopts chamfer design, and the upper end of short keyway also adopts chamfer design.
Slip and the rotary seal face of small end cover and half way rotation splined shaft are provided with sealing ring.
The utility model has the advantages that: this instrument can make drill string rotating or slip, fall resistance effect so can play significantly anti-attrition, while being applied to high temperature well section and barefoot interval, anti-attrition resistance reducing effect is remarkable equally.This tool operation is easy, can reduce strut length simultaneously, reduces drillng operation cost.
Brief description of the drawings
The omnidistance rotation status schematic diagram of a kind of drill string half way throw that Fig. 1 proposes for the utility model.
The view that makes a trip of a kind of drill string half way throw that Fig. 2 proposes for the utility model.
The half way rotation status schematic diagram of a kind of drill string half way throw that Fig. 3 proposes for the utility model.
The half way rotation splined shaft spline structure schematic diagram of a kind of drill string half way throw that Fig. 4 proposes for the utility model.
The half way rotation key fluted shaft structural representation of a kind of drill string half way throw that Fig. 5 proposes for the utility model.
In figure: 1 top connection, 2 small end covers, 3 half way rotation splined shafts, 4 half way rotation key fluted shafts, 5 sealing rings, 6 bearings, 7 lower contacts, 8 long keyway, 9 short keyways, 10 splines.
Detailed description of the invention
Below in conjunction with specification drawings and specific embodiments, the utility model is further described.
With reference to accompanying drawing 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, a kind of drill string half way throw, comprises top connection 1, half way rotation splined shaft 3, half way rotation key fluted shaft 4, small end cover 2, bearing 6, sealing ring 5, lower contact 7, long keyway 8, short keyway 9, spline 10.The half way rotation splined shaft 3 uniform splines 10 in external surface bottom, spline 10 is chamfer design, half way rotation splined shaft 3 is enclosed within half way rotation key fluted shaft 4 inside, near half way rotation key fluted shaft 4 inner surface centres, stagger and be evenly equipped with long keyway 8 and short keyway 9, on long keyway 8 and short keyway 9, lower employing chamfer design, half way rotation key fluted shaft 4 tops are connected with small end cover 2 by screw thread, between small end cover 2 and half way rotation splined shaft 3, be provided with sealing ring 5, half way rotation key fluted shaft 4 bottoms are connected with lower contact 7 by screw thread, between half way rotation key fluted shaft 4 and lower contact 7, bearing 6 is installed, half way rotation splined shaft 3 tops are connected with top connection 2 by screw thread.
The spline 10 of the half way rotation splined shaft 3 of this instrument can be positioned at two different operating positions, can distinguish going down moment of torsion or thrust.In drillng operation, above carry half way rotation splined shaft 3, by rotation, can optionally allow the spline 10 of half way rotation splined shaft 3 external surfaces be inserted in the long keyway 8 or short keyway 9 of half way rotation key fluted shaft 4 inside.In the time that spline 10 enters short keyway 9, half way rotation key fluted shaft 4 rotates with half way rotation splined shaft 3 simultaneously, will rotatablely move and pass to bottomhole assembly; In the time that spline 10 enters long keyway 8, half way rotation splined shaft 3 rotates, and by the effect of bearing 6, by the pressure of the drill going down, but will not rotatablely move and pass to bottomhole assembly.Half way rotation key fluted shaft 4 adopts the structure design of long keyway 8 and short keyway 9, can realize half way and omnidistance rotation control; Long keyway 8 adopts chamfer design with short keyway 9 upper and lower parts, has guaranteed that half way rotation splined shaft 3 necessarily enters in groove in putting forward process upper; The spline 10 of half way rotation splined shaft 3 external surfaces adopts chamfer design, guarantees in its long keyway 8 or short keyway 9 that very easily enters half way rotation key fluted shaft 4; Adopt supercharging sealing 5 designs, guarantee that instrument is withstand voltage more than 21Mpa; By suitably choosing the length difference of long keyway 8 and short keyway 9, facilitate ground to judge the location status of half way rotation splined shaft 3 upper splines 10.
Claims (4)
1. a drill string half way throw, it is characterized in that comprising top connection (1), half way rotation splined shaft (3), half way rotation key fluted shaft (4), small end cover (2) and lower contact (7), wherein: half way rotation splined shaft (3) external surface bottom uniform several splines (10) vertically, the two ends of spline (10) are chamfer design, half way rotation splined shaft (3) is enclosed within half way rotation key fluted shaft (4) inside, near the interleaved long keyway (8) and semi-enclosed short keyway (9) that is provided with axial perforation in the middle of half way rotation key fluted shaft (4) inner surface, the groove width of long keyway (8) and short keyway (9) and slot pitch are wide suitable with spacing with the key of spline (10) respectively, half way rotation key fluted shaft (4) top is connected with small end cover (2), small end cover (2) forms slip with half way rotation splined shaft (3) and rotatory sealing coordinates, half way rotation key fluted shaft (4) bottom is connected with lower contact (7), half way rotation splined shaft (3) top is connected with top connection (1).
2. drill string half way throw according to claim 1, is characterized in that: between half way rotation key fluted shaft (4) and lower contact (7), bearing (6) is installed.
3. drill string half way throw according to claim 1 and 2, is characterized in that: the upper and lower end of long keyway (8) all adopts chamfer design, the upper end of short keyway (9) also adopts chamfer design.
4. drill string half way throw according to claim 3, is characterized in that: small end cover (2) is provided with sealing ring (5) with slip and the rotary seal face of half way rotation splined shaft (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320881803.3U CN203756028U (en) | 2013-12-31 | 2013-12-31 | Half-rotation tool of drilling string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320881803.3U CN203756028U (en) | 2013-12-31 | 2013-12-31 | Half-rotation tool of drilling string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203756028U true CN203756028U (en) | 2014-08-06 |
Family
ID=51251316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320881803.3U Expired - Fee Related CN203756028U (en) | 2013-12-31 | 2013-12-31 | Half-rotation tool of drilling string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203756028U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747073A (en) * | 2013-12-31 | 2015-07-01 | 中国石油化工集团公司 | Drill stem (tubular pile) halfway rotating tool |
| CN106150393A (en) * | 2015-04-15 | 2016-11-23 | 中国石油化工股份有限公司 | A kind of rotatable drill stem type slipping drilling pipe nipple |
| CN106382104A (en) * | 2016-12-02 | 2017-02-08 | 贵州高峰石油机械股份有限公司 | Spline anti-suppression and drag-reduction structure of drill column rotating head and method |
| CN107322532A (en) * | 2017-07-21 | 2017-11-07 | 国网北京市电力公司 | Switch cart operation instrument |
-
2013
- 2013-12-31 CN CN201320881803.3U patent/CN203756028U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747073A (en) * | 2013-12-31 | 2015-07-01 | 中国石油化工集团公司 | Drill stem (tubular pile) halfway rotating tool |
| CN106150393A (en) * | 2015-04-15 | 2016-11-23 | 中国石油化工股份有限公司 | A kind of rotatable drill stem type slipping drilling pipe nipple |
| CN106150393B (en) * | 2015-04-15 | 2018-04-20 | 中国石油化工股份有限公司 | A kind of rotatable drill stem type slipping drilling pipe nipple |
| CN106382104A (en) * | 2016-12-02 | 2017-02-08 | 贵州高峰石油机械股份有限公司 | Spline anti-suppression and drag-reduction structure of drill column rotating head and method |
| CN107322532A (en) * | 2017-07-21 | 2017-11-07 | 国网北京市电力公司 | Switch cart operation instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151119 Address after: 100029 Beijing Chaoyang District Hui Xin a No. twelve layer 6 Patentee after: SINOPEC OILFIELD SERVICE CORPORATION Patentee after: Drilling Well Technology Institute, Shengli Petroleum Engineering Co., Ltd., SINOPEC Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee before: China Petrochemical Group Corp. Patentee before: Drilling Well Technology Institute, Shengli Petroleum Engineering Co., Ltd., SINOPEC |
|
| 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: 20140806 Termination date: 20201231 |