CN201747286U - Ball abrasion-reducing torsion-decreasing joint - Google Patents
Ball abrasion-reducing torsion-decreasing joint Download PDFInfo
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- CN201747286U CN201747286U CN2010202854140U CN201020285414U CN201747286U CN 201747286 U CN201747286 U CN 201747286U CN 2010202854140 U CN2010202854140 U CN 2010202854140U CN 201020285414 U CN201020285414 U CN 201020285414U CN 201747286 U CN201747286 U CN 201747286U
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- transition rings
- ball
- urceolus
- steel ball
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Abstract
The utility model relates to a ball abrasion-reducing torsion-decreasing joint which mainly solves the problems that the current joint can not have the effects of abrasion-reducing and torsion-decreasing simultaneously. The ball abrasion-reducing torsion-decreasing joint is characterized in that the outsides of an upper joint and a lower joint (1, 9) are provided with an outer joint cylinder (10); bearings (3, 11) are arranged between the outer joint cylinder (10) and the upper joint and the lower joint (1, 9); the outer wall of the outer joint cylinder (10) is embedded with a steel ball (6); and the steel ball (6) extrudes out of the outer surface of the outer joint cylinder (10). The ball abrasion-reducing torsion-decreasing joint has the characteristics of simultaneously reducing abrasion and decreasing torque, and can protect the completion of the joint of a drill stem and the smooth implementation of drilling.
Description
Technical field:
The utility model relates to the used joint of a kind of oil drilling, and twist joint falls in a kind of specifically ball-type antifriction.
Background technology:
In the drilling process of conventional directional well, horizontal well and extended reach well, frictional resistance, moment of torsion are very high, have a strong impact on rate of penetration, thus frictional resistance, moment of torsion become that restriction directional well, horizontal well and extended reach well drilling speed improve a principal element.Therefore, in actual production, the technician presses for a kind of downhole tool that can reduce frictional resistance, moment of torsion.Several antifriction have been arranged at present both at home and abroad, fallen the instrument of turning round, wherein a part is by adopting the very little elastomeric material of friction factor to reduce frictional resistance, a part is to reduce moment of torsion by rolling bearing, but these instruments or can antifriction or can fall and turn round, but all can not have good antifriction simultaneously, fall and turn round effect.
The utility model content:
In order to overcome the deficiency that existing joint can not have antifriction simultaneously, fall the effect of turning round; the utility model provides a kind of ball-type antifriction to fall twist joint; this ball-type antifriction is fallen twist joint and is had the advantages that can reduce frictional resistance simultaneously and reduce moment of torsion, intact and the carrying out smoothly of creeping into of protection tool joint.
The technical solution of the utility model is: twist joint falls in a kind of ball-type antifriction, comprise upper and lower joint, and be threaded between the upper and lower joint, described upper and lower joint outside is equipped with the joint urceolus, between described joint urceolus and the upper and lower joint bearing is arranged, be inlaid with steel ball on the outer drum outer wall of joint, described steel ball protrudes from the outer tube outer surface of joint.
The outer tube outer surface of described joint is a helical form.
Described joint urceolus is made up of last transition rings, transition rings, following transition rings, the described transition rings inwall of going up has boss, be equipped with bearing between described boss and the upper and lower joint, described transition rings, following transition rings place the lower contact outside, following transition rings inwall also has boss, between itself and the lower contact bearing is arranged.
Described transition rings is made up of several transition rings monomers, and fluted on the face that contacts with each other of transition rings monomer, and steel ball is embedded in the groove.
The utlity model has following beneficial effect: owing to take such scheme, between joint urceolus and the upper and lower joint bearing is arranged, make between the two it is rolling friction, the joint urceolus contacts with the borehole wall by steel ball, friction between its joint urceolus and the borehole wall also is rolling friction, frictional force is little, can significantly reduce loss of machine of torque; The outer tube outer surface of joint is a helical form, can prevent the mud deposition and the bit freezing that causes.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
1-top connection among the figure, the 2-sealing mat, 3-bearing A, the last excessively ring of 4-, 5-excessively encircles, the 6-steel ball, 7-excessively encircles down, 8-O type circle, 9-lower contact, 10-joint urceolus, 11-bearing B.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
By shown in Figure 1, twist joint falls in a kind of ball-type antifriction, comprise top connection 1, lower contact 9, be threaded between top connection 1, the lower contact 9, and sealing mat 2 is arranged between the two, described top connection 1, lower contact 9 outsides are equipped with joint urceolus 10, bearing A3 and bearing B11 are arranged respectively between described joint urceolus 10 and top connection 1, the lower contact 9, make that between joint urceolus 10 and the upper and lower joint be rolling friction, frictional force is little, therefore can significantly reduce loss of machine of torque.Be inlaid with several steel balls 6 on joint urceolus 10 outer walls, most being in the joint urceolus 10 of steel ball 6, fraction protrudes from joint urceolus 10 external surfaces, like this, between joint urceolus 10 and the borehole wall to contact by steel ball 6, its frictional force also is rolling friction, has further reduced frictional force, reduces loss of machine of torque.
As preferably, described joint urceolus 10 external surfaces are helical form, adopt the flow channel type structure, can prevent the one side that instrument is pressed close to the shaft bottom in directional well, horizontal well and the extended reach well like this, bit freezing owing to the mud deposition causes when drilling fluid passes through spiral runner, produces eddy flow, improved large rock-carrying ability effectively, simultaneously steel ball 6 also in the shape of a spiral formula distribute, contact more fully with the borehole wall, do not have the dead angle, stressed even, utilized rollability well.
As preferably, described joint urceolus 10 is made up of last transition rings 4, transition rings 5, following transition rings 7, described transition rings 4 inwalls of going up have boss, are equipped with bearing A3 between described boss and top connection 1, the lower contact 9, and going up transition rings 4 simultaneously has the sealing of O type circle with top connection 1 contact site; Described transition rings 5, following transition rings 7 place lower contact 9 outsides, and following transition rings 7 inwalls also have boss, and bearing B11 is arranged between described boss and the lower contact 9, and 8 sealings of O type circle are arranged between following transition rings 7 and the lower contact 9.Described transition rings 5 is made up of several transition rings monomers, and all fluted on the contact surface of per two transition rings monomers that are in contact with one another, steel ball 6 is embedded in the groove, most being in the transition rings monomer of steel ball 6, and fraction protrudes from transition rings monomer surface.This minute body structure of joint urceolus 10 helps processing and the laying of steel ball 6, and steel ball 6 can also play the effect of circumferential location, and is safe and reliable.Simultaneously,, tool joint is not directly contacted with the borehole wall or sleeve pipe, play the effect of protection tool joint because the external diameter of the joint urceolus 10 of this joint is bigger than drilling rod external diameter.
Claims (4)
1. twist joint falls in a ball-type antifriction, comprise upper and lower joint (1,9), and upper and lower joint (1,9) be threaded between, it is characterized in that: described upper and lower joint (1,9) outside is equipped with joint urceolus (10), described joint urceolus (10) and upper and lower joint (1, bearing (3 is arranged 9), 11), be inlaid with steel ball (6) on joint urceolus (10) outer wall, described steel ball (6) protrudes from joint urceolus (10) external surface.
2. twist joint falls in ball-type antifriction according to claim 1, it is characterized in that: described joint urceolus (10) external surface is a helical form.
3. twist joint falls in ball-type antifriction according to claim 2, it is characterized in that: described joint urceolus (10) is made up of last transition rings (4), transition rings (5), following transition rings (7), described transition rings (4) inwall of going up has boss, described boss and upper and lower joint (1,9) be equipped with bearing (3) between, described transition rings (5), down transition rings (7) places lower contact (9) outside, and following transition rings (7) inwall also has boss, between itself and the lower contact (9) bearing (11) is arranged.
4. twist joint falls in ball-type antifriction according to claim 3, it is characterized in that: described transition rings (5) is made up of several transition rings monomers, and fluted on the face that contacts with each other of transition rings monomer, and steel ball (6) is embedded in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202854140U CN201747286U (en) | 2010-08-05 | 2010-08-05 | Ball abrasion-reducing torsion-decreasing joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202854140U CN201747286U (en) | 2010-08-05 | 2010-08-05 | Ball abrasion-reducing torsion-decreasing joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201747286U true CN201747286U (en) | 2011-02-16 |
Family
ID=43581969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202854140U Expired - Lifetime CN201747286U (en) | 2010-08-05 | 2010-08-05 | Ball abrasion-reducing torsion-decreasing joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201747286U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828700A (en) * | 2012-08-01 | 2012-12-19 | 中国石油天然气集团公司 | Ball type friction and torsion reducing connector |
| CN105508620A (en) * | 2016-01-18 | 2016-04-20 | 沈阳航空航天大学 | Self-centering sealing piece for achieving floating through gas pressure difference action and mounting method of self-centering sealing piece |
| CN106895076A (en) * | 2015-12-18 | 2017-06-27 | 中国石油化工股份有限公司 | A kind of controllable bearing of moment of torsion |
| CN108071353A (en) * | 2017-12-15 | 2018-05-25 | 广东五月花网络科技有限公司 | A kind of fixing device for being used for drilling rod during oil exploitation |
-
2010
- 2010-08-05 CN CN2010202854140U patent/CN201747286U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828700A (en) * | 2012-08-01 | 2012-12-19 | 中国石油天然气集团公司 | Ball type friction and torsion reducing connector |
| CN106895076A (en) * | 2015-12-18 | 2017-06-27 | 中国石油化工股份有限公司 | A kind of controllable bearing of moment of torsion |
| CN106895076B (en) * | 2015-12-18 | 2019-02-26 | 中国石油化工股份有限公司 | A kind of bearing that torque is controllable |
| CN105508620A (en) * | 2016-01-18 | 2016-04-20 | 沈阳航空航天大学 | Self-centering sealing piece for achieving floating through gas pressure difference action and mounting method of self-centering sealing piece |
| CN108071353A (en) * | 2017-12-15 | 2018-05-25 | 广东五月花网络科技有限公司 | A kind of fixing device for being used for drilling rod during oil exploitation |
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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: 20110216 |
|
| CX01 | Expiry of patent term |