CN102828700A - Ball type friction and torsion reducing connector - Google Patents
Ball type friction and torsion reducing connector Download PDFInfo
- Publication number
- CN102828700A CN102828700A CN2012102718351A CN201210271835A CN102828700A CN 102828700 A CN102828700 A CN 102828700A CN 2012102718351 A CN2012102718351 A CN 2012102718351A CN 201210271835 A CN201210271835 A CN 201210271835A CN 102828700 A CN102828700 A CN 102828700A
- Authority
- CN
- China
- Prior art keywords
- connector
- ring
- lower contact
- ball
- torsion
- 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
Landscapes
- Earth Drilling (AREA)
Abstract
A ball type friction and torsion reducing connector mainly solves the problem that an existing connector cannot realize effects of reducing friction and torsion simultaneously. The ball type friction and torsion reducing connector is characterized in that an upper connector (1) is connected with a lower connector (2) in a threaded manner, a sealing ring is arranged between the upper connector (1) and the lower connector (2), a main ring (3) and retainer rings (4) are arranged in steps outside the lower connector (2), rolling bearings (5) are arranged outside the lower connector (2) in a left-end step of the main ring (3) and outside the lower connector (2) inside left-end steps of the retainer rings (4), spiral ribs are arranged on the outside of the main ring (3) and outsides of the retainer rings (4), and balls (6) capable of rotating are inlaid on outsides of the ribs. The ball type friction and torsion reducing connector has the advantage of effects of reducing friction and torsion simultaneously.
Description
Technical field
The present invention relates to the used downhole tool of a kind of oil drilling, especially twist joint falls in the ball-type antifriction.
Background technology
In the drilling process of conventional directional well, horizontal well and extended reach well, joint frictional resistance, moment of torsion are very high, have a strong impact on rate of penetration, so joint frictional resistance, moment of torsion become the principal element that restriction directional well, horizontal well and extended reach well drilling speed improve.Existing joint influences drilling efficiency and quality because reasons in structure can not have antifriction simultaneously and fall and turn round effect.
Summary of the invention
Can not have antifriction simultaneously and fall the problem of turning round effect in order to solve existing joint.The present invention provides a kind of ball-type antifriction to fall twist joint.This ball-type antifriction is fallen twist joint and is had and have antifriction simultaneously and fall the characteristics of turning round effect.
Technical scheme of the present invention is: this ball-type antifriction is fallen twist joint and is comprised top connection, lower contact, main ring and baffle ring.Top connection and lower contact are through being threaded; And sealing ring is arranged between the two; Main ring and baffle ring place in the outer stage of lower contact; Outer interior lower contact is equipped with rolling bearing outward with baffle ring right-hand member stage in lower contact in the main ring left end stage, and main ring and baffle ring have spiral ridge outward, and fin is inlaid with the ball that can rotate outward.
The present invention has following beneficial effect: this ball-type antifriction is fallen twist joint owing to adopt top connection and lower contact through being threaded; And sealing ring is arranged between the two; Main ring and baffle ring place in the outer stage of lower contact; Outer interior lower contact is equipped with rolling bearing outward with baffle ring right-hand member stage in lower contact in the main ring left end stage, and main ring and baffle ring have spiral ridge outward, and fin is inlaid with the roll structure that can rotate outward.Utilizing rolling bearing and ball is that antifriction is fallen again and turned round, and reaches to reduce frictional resistance and the purpose that reduces moment of torsion simultaneously effectively, reduces the risk that horizontal well is hampered, meets card, safe and reliable, on-the-spot the rate of penetration of the well of improving the standard is installed simply.This ball-type antifriction is fallen twist joint and is had and have antifriction simultaneously and fall the characteristics of turning round effect thus.
Description of drawings
Accompanying drawing 1 is a structural representation of the present invention.
1-top connection among the figure, 2-lower contact, 3-main ring, 4-baffle ring, 5-alloy bearing, 6-ball.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described further:
Shown in accompanying drawing, this ball-type antifriction is fallen twist joint and is comprised top connection 1, lower contact 2, main ring 3 and baffle ring 4.Top connection 1 and lower contact 2 are through being threaded; And sealing ring is arranged between the two, and main ring 3 places in the stage outside the lower contact 2 with baffle ring 4, and main ring 3 is connected through four spacer pins with baffle ring 4 contact surfaces; The lower contact 2 outer and interior lower contact 2 outer rolling bearings 5 that are equipped with of baffle ring 4 right-hand member stages in the main ring 3 left end stages; Make main ring 3 and baffle ring 4 and top connection 1 and lower contact 2 rolling friction by rolling bearing 5, frictional force is little, therefore can significantly reduce loss of machine of torque.Main ring 3 and baffle ring 4 are outer to have 4 spiral ridges, and every rib is processed to the T-shape groove, and ball 6 is embedded in the groove, most being in the fin of ball 6, and fraction protrudes from outside the fin.Make between main ring 3 and baffle ring 4 and the borehole wall to contact through ball 6, its friction type also is rolling friction, has further reduced frictional force, reduces loss of machine of torque, and ball 6 can also play the effect of circumferential location simultaneously.Helical rib is 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, also formula distribution in the shape of a spiral of ball 6 simultaneously contacts more abundant with the borehole wall; There is not the dead angle, stressed even, utilized rollability well.Because it is bigger than drilling rod external diameter that the twist joint external diameter falls in this ball-type antifriction, and drill pipe tool is not directly contacted with the borehole wall or sleeve pipe, play the effect of protection drill pipe tool.
Claims (1)
1. twist joint falls in a ball-type antifriction; Comprise top connection (1), lower contact (2), main ring (3) and baffle ring (4); It is characterized in that: top connection (1) and lower contact (2) are through being threaded; And sealing ring is arranged between the two, and main ring (3) and baffle ring (4) place in the outer stage of lower contact (2), the outer and outer rolling bearing (5) that is equipped with of the interior lower contact (2) of baffle ring (4) right-hand member stage of lower contact (2) in main ring (3) the left end stage; The ball (6) that main ring (3) and baffle ring (4) be outer to be had spiral ridge, fin to be inlaid with outward can to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102718351A CN102828700A (en) | 2012-08-01 | 2012-08-01 | Ball type friction and torsion reducing connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102718351A CN102828700A (en) | 2012-08-01 | 2012-08-01 | Ball type friction and torsion reducing connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102828700A true CN102828700A (en) | 2012-12-19 |
Family
ID=47331988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102718351A Pending CN102828700A (en) | 2012-08-01 | 2012-08-01 | Ball type friction and torsion reducing connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102828700A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1230060A (en) * | 1970-03-25 | 1971-04-28 | ||
| CN1920238A (en) * | 2006-09-13 | 2007-02-28 | 辽河石油勘探局 | Oil field floor pipeline quick-acting connector |
| CN201747286U (en) * | 2010-08-05 | 2011-02-16 | 大庆石油管理局 | Ball abrasion-reducing torsion-decreasing joint |
-
2012
- 2012-08-01 CN CN2012102718351A patent/CN102828700A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1230060A (en) * | 1970-03-25 | 1971-04-28 | ||
| CN1920238A (en) * | 2006-09-13 | 2007-02-28 | 辽河石油勘探局 | Oil field floor pipeline quick-acting connector |
| CN201747286U (en) * | 2010-08-05 | 2011-02-16 | 大庆石油管理局 | Ball abrasion-reducing torsion-decreasing joint |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205805445U (en) | Multifunctional casing guide shoe is used in well cementation | |
| CN105350912B (en) | Downhole tool for reducing friction resistance of sliding directional drilling | |
| CN201747286U (en) | Ball abrasion-reducing torsion-decreasing joint | |
| CN102943635B (en) | Diameter-changing and friction-reducing drill column centralizer | |
| CN202810691U (en) | Antifriction resistance reducing short connection for well drilling | |
| CN204984279U (en) | Outer tube with wear proof device | |
| CN205714007U (en) | A kind of down-hole string rotates and controls switch | |
| CN102828700A (en) | Ball type friction and torsion reducing connector | |
| CN101881136A (en) | Compound seal roller bit | |
| CN201354595Y (en) | Double-acting stabilizer for reducing resistance and torsion | |
| CN202954752U (en) | Anti-drag centralizer | |
| CN203097708U (en) | Anti-fall device for transmission shaft of screw drill | |
| CN201526284U (en) | Coal seam drilling torque reduction stabilizer | |
| CN201666126U (en) | Antifriction ball-bearing casing protecting device | |
| CN101979817B (en) | Ditrigonal centralizer | |
| CN201460764U (en) | Abrasion preventing joint of torque reducing sleeve pipe for drill | |
| CN101892813B (en) | Drill collar capable of reducing stick slip phenomena | |
| CN203716847U (en) | Antifriction and twisting reducing tool for well drilling of directional well | |
| CN201241633Y (en) | Rotary centralizer | |
| CN204371124U (en) | Drilling well drag reduction falls turns round stabilizer | |
| CN201121494Y (en) | Drilling tool drag reduction machine | |
| CN203383730U (en) | Directive rotary steering well drilling steering tool | |
| CN201915857U (en) | Torsion-reducing and wear-resisting joint | |
| CN201891393U (en) | Eccentric wear prevention ball centralizer | |
| CN101117884B (en) | Boring tool drag reduction device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121219 |