CN102071885A - Antifriction and anti-adhesion abrasion reduction tool for drilling rig - Google Patents
Antifriction and anti-adhesion abrasion reduction tool for drilling rig Download PDFInfo
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- CN102071885A CN102071885A CN2011100332408A CN201110033240A CN102071885A CN 102071885 A CN102071885 A CN 102071885A CN 2011100332408 A CN2011100332408 A CN 2011100332408A CN 201110033240 A CN201110033240 A CN 201110033240A CN 102071885 A CN102071885 A CN 102071885A
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- antifriction
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- drilling tool
- attrition
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Abstract
The invention discloses an antifriction and anti-adhesion abrasion reduction tool for a drilling rig. The antifriction and anti-adhesion abrasion reduction tool comprises a main shaft with a baffle ring, and an antifriction sleeve which is sleeved on the main shaft and capable of rotating around the main shaft; meanwhile, the main shaft is provided with a limiting member for preventing axial sliding of the antifriction sleeve; and antifriction and wear-resisting protective coatings are arranged on the contact surfaces between the antifriction sleeve and the baffle ring, between the antifriction sleeve and the limiting member, and between the antifriction sleeve and the main shaft. The antifriction and anti-adhesion abrasion reduction tool for the drilling rig is simple in structure and convenient to use; moreover, the antifriction sleeve is sleeved on the main shaft, and is directly contacted with the well wall, so the main shaft cannot contact the well wall; therefore, the main shaft and the drilling rig are prevented from being abraded by the well wall, and the antifriction and anti-adhesion abrasion reduction tool is suitable for popularization and application.
Description
Technical field
The present invention relates to the antiseized anti-attrition instrument of a kind of antifriction, specifically be meant the antiseized anti-attrition instrument of a kind of drilling tool antifriction.
Background technology
Along with the development of society, progress of science and technology, people have made significant headway in technical fields such as oil, geological drillings.But, boring some highly difficult wells, in the work as deep-well, ultradeep well, directional well, horizontal well, extended reach well and Multilateral Wells etc.,, frictional resistance still perplexing the technician of drilling well circle owing to being badly damaged drilling tool too greatly.
At present, some technician are provided with the antifriction ball on drilling tool or roller reduces frictional resistance, but because the interior space of deep-well is limited, and antifriction ball and roller all can not design too greatly, and the lateral force of drilling tool is too big, is enough to antifriction ball and roller are pressed into the borehole wall.Simultaneously, the borehole wall has hollow and shoulder, and antifriction ball and roller not only can not reduce frictional resistance when running into the borehole wall of uneven, can increase frictional resistance on the contrary.Therefore, prior art all can not well solve the too big technical problem of drilling tool frictional resistance, makes drilling tool impaired easily in drilling well work, thereby has increased drilling cost, reduces operating efficiency, when serious even cause the drilling well fault.
Summary of the invention
The objective of the invention is to overcome present prior art and all can not well solve the too big technical problem of drilling tool frictional resistance; thereby increased drilling cost; reduced the defective of operating efficiency; provide a kind of not only simple in structure; with low cost; and can effectively reduce frictional resistance, also protected the antiseized anti-attrition instrument of drilling tool antifriction of drilling tool simultaneously.
The present invention is achieved through the following technical solutions: the antiseized anti-attrition instrument of drilling tool antifriction, comprising the main shaft with baffle ring and be enclosed within also can be around the antifriction cover of its rotation on this main shaft, on this main shaft, also be provided with simultaneously and prevent that this antifriction from overlapping locating part in axial sliding, be equipped with the anti-friction wear-resistant protective coating between the contact surface of described antifriction cover and a grade ring, locating part and main shaft.
Further, described main shaft is as a whole, and baffle ring then is solidified as a whole with this main shaft.
Further, described main shaft is made up of lower main axis and the last main shaft that is complementary with it; Described shelves ring is solidified as a whole with lower main axis, and locating part then is solidified as a whole with last main shaft, and the antifriction cover then is arranged on lower main axis or goes up on the main shaft.
In order to satisfy the demand, on the top layer of this antifriction cover, also to be provided with the righting rib more than two, and between adjacent two righting ribs, also to be formed with runner.
In order better to realize the present invention, described righting rib is linear or spirality.
In order to better meet needs, described antifriction cover is made up of following component and content: described antifriction cover is made up of following component and content: polytetrafluoroethylene (PTFE)≤50%, carbon fiber≤60%, molybdenum bisuphide≤30%, polyphenylene sulfide≤80%.
In order to ensure effect, the edge of overlapping in described antifriction also is provided with chamfering.
The present invention compared with prior art has the following advantages and beneficial effect:
(1) the present invention is not only simple in structure, and easy to use.
(2) the present invention is with the antifriction cover on main shaft, directly contacts the borehole wall by the antifriction cover, main shaft is not contacted with the borehole wall, thereby protected main shaft and drilling tool not to be worn and torn by the borehole wall.
(3) be equipped with the anti-friction wear-resistant protective coating between the contact surface of antifriction cover of the present invention and shelves ring, locating part and main shaft, reduced the frictional resistance between antifriction cover and main shaft, thereby reduce the friction damage degree of antifriction cover, reduce the moment of torsion of the relative antifriction cover of main shaft rotation simultaneously, improved the moment of torsion transmission efficiency of drilling tool.
(4) antifriction cover of the present invention is made by friction reducing abrasion resistant material, can effectively reduce the frictional resistance between the antifriction cover and the borehole wall, thereby reduces the axial frictional resistance of drilling tool, has improved the axial force transmission efficient of drilling tool, has eliminated drilling tool and borehole wall stick-slip phenomenon.
(5) antifriction of the present invention puts and is provided with righting rib, and be formed with runner between the righting rib, make drilling fluid flow into the drilling tool bottom, thereby make drilling tool be difficult for being clung by the borehole wall by runner, avoid sticking card failure from root, further reduce the frictional resistance between the drilling tool and the borehole wall.
(6) antifriction of the present invention cover two ends are equipped with chamfering, thereby can reduce the axial resistance between the antifriction cover and the irregular borehole wall.
Description of drawings
Fig. 1 is the unitary whole structural representation for main shaft of the present invention.
Fig. 2 is spiral-shaped overall structure schematic diagram for the righting rib of Fig. 1.
Fig. 3 is that antifriction of the present invention is set on the overall structure schematic diagram on the lower main axis.
Fig. 4 is spiral-shaped overall structure schematic diagram for the righting rib of Fig. 3.
Fig. 5 is that antifriction of the present invention is set on the overall structure schematic diagram on the main shaft.
Fig. 6 is spiral-shaped overall structure schematic diagram for the righting rib of Fig. 5.
Wherein, the component name of Reference numeral correspondence is called among the figure:
The 1-main shaft, 2-baffle ring, 3-antifriction cover, 4-locating part, 5-anti-friction wear-resistant coating, 6-lower main axis, the last main shaft of 7-, 8-righting rib, 9-runner, 10-chamfering, 11-lower contact, 12-top connection.
The specific embodiment
Below in conjunction with embodiment the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment 1
As shown in Figure 1, main shaft of the present invention 1 is as a whole, and promptly this main shaft 1 also is provided with shelves ring 2 simultaneously directly by mechanical time processing moulding on this main shaft 1.In order to protect main shaft 1 not frayed, main shaft 1 is not directly contacted with the borehole wall, therefore on main shaft 1, also be provided with and can overlap 3 around the antifriction that this main shaft 1 rotates freely.
In order to prevent that antifriction cover 3 from main shaft 1 axial displacement taking place, on described main shaft 1, also be provided with locating part 4,3 in antifriction cover is fixed between this locating part 4 and the baffle ring 2 by locating part 4.In order to protect antifriction cover 3, reduce the frictional resistance between this antifriction cover 3 and the borehole wall, it is impaired that antifriction cover 3 is difficult for, and this antifriction cover 3 is made by friction reducing abrasion resistant material.Described friction reducing abrasion resistant material comprises polytetrafluoroethylene (PTFE), molybdenum bisuphide, carbon fiber, polyphenylene sulfide, and these component materials proportionings are as follows: polytetrafluoroethylene (PTFE)≤50%, carbon fiber≤60%, molybdenum bisuphide≤30%, polyphenylene sulfide≤80%.
In order to reduce the frictional force between antifriction cover 3 and main shaft 1, baffle ring 2 and the locating part 4, be equipped with anti-friction wear-resistant coating 5 between the contact surface of described antifriction cover 3 and main shaft 1, baffle ring 2 and locating part 4, this anti-friction wear-resistant coating 5 is made by friction reducing abrasion resistant material.Simultaneously, in order to reduce the frictional force between the antifriction cover 3 and the borehole wall, also be provided with chamfering 10 in the edge of described antifriction cover 3, this chamfering 10 is angle or the fillet with 0 °～45 ° of the axial formation of main shaft 1.
For the downside that makes antifriction cover 3 can flow into drilling fluid, on described antifriction cover 3, also be provided with the righting rib 8 more than 2 roads, this righting rib 8 is a linear, and is formed with the runner 9 for the drilling fluid circulation between the adjacent twice righting rib 8.Simultaneously, this runner 9 materials such as earth that the borehole wall can also be fallen down are derived.
Be connected with drilling tool during for the ease of use, be respectively equipped with the lower contact 11 and the top connection 12 that are complementary with drilling tool at the two ends of described main shaft 1.
In order to ensure effect, described righting rib 8 can also be made as spirality, as shown in Figure 2.
Shown in Fig. 3,4, present embodiment is compared with embodiment 1, overall structure is identical, unique difference only is that described main shaft 1 comprises that an end is provided with the last main shaft 7 that the other end of the lower main axis 6 of the lower contact 11 that is complementary with drilling tool and an end and this lower main axis 6 is complementary, and the other end of main shaft 7 also is provided with the top connection 12 that is complementary with drilling tool on this.Described baffle ring 2 is fixed on the lower main axis 6, and locating part 4 then is arranged on the main shaft 7.Simultaneously, described antifriction cover 3 also is arranged on the lower main axis 6.
Described lower main axis 6 comprises welding with the connected mode of last main shaft 7, is threaded, and pin connects, and riveted joint and screw connect, and the present invention preferably is threaded.
Shown in Fig. 5,6, present embodiment is compared with embodiment 2, and overall structure is identical, and unique difference only is that described antifriction cover 3 is arranged on the main shaft 7.
As mentioned above, just can realize the present invention preferably.
Claims (7)
1. the antiseized anti-attrition instrument of drilling tool antifriction, it is characterized in that: comprise have baffle ring (2) main shaft (1) and be enclosed within that this main shaft (1) is gone up and can be around the antifriction cover (3) of its rotation, on this main shaft (1), also be provided with simultaneously and prevent this antifriction cover (3) locating part (4) in axial sliding, be equipped with anti-friction wear-resistant protective coating (5) between the contact surface of described antifriction cover (3) and shelves ring (2), locating part (4) and main shaft (1).
2. the antiseized anti-attrition instrument of drilling tool antifriction according to claim 1 is characterized in that: described main shaft (1) is as a whole, and baffle ring (2) then is solidified as a whole with this main shaft (1).
3. the antiseized anti-attrition instrument of drilling tool antifriction according to claim 1 is characterized in that: described main shaft (1) is made up of lower main axis (6) and the last main shaft (7) that is complementary with it; Described shelves rings (2) are solidified as a whole with lower main axis (6), and locating part (4) then is solidified as a whole with last main shaft (7), and antifriction cover (3) then is arranged on lower main axis (6) or goes up on the main shaft (7).
4. according to the antiseized anti-attrition instrument of each described drilling tool antifriction of claim 1～3, it is characterized in that: on the top layer of this antifriction cover (3), also be provided with the righting rib (8) more than two, and between adjacent two righting ribs (8), also be formed with runner (9).
5. the antiseized anti-attrition instrument of drilling tool antifriction according to claim 4 is characterized in that: described righting rib (8) is linear or spirality.
6. the antiseized anti-attrition instrument of drilling tool antifriction according to claim 5 is characterized in that: described antifriction cover (3) is made up of following component and content: polytetrafluoroethylene (PTFE)≤50%, carbon fiber≤60%, molybdenum bisuphide≤30%, polyphenylene sulfide≤80%.
7. the antiseized anti-attrition instrument of drilling tool antifriction according to claim 6 is characterized in that: the edge at described antifriction cover (3) also is provided with chamfering (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100332408A CN102071885A (en) | 2011-01-24 | 2011-01-24 | Antifriction and anti-adhesion abrasion reduction tool for drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100332408A CN102071885A (en) | 2011-01-24 | 2011-01-24 | Antifriction and anti-adhesion abrasion reduction tool for drilling rig |
Publications (1)
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| CN102071885A true CN102071885A (en) | 2011-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100332408A Pending CN102071885A (en) | 2011-01-24 | 2011-01-24 | Antifriction and anti-adhesion abrasion reduction tool for drilling rig |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996003568A1 (en) * | 1994-07-28 | 1996-02-08 | Jerome Kemick | Sacrificial wear bearing |
| CN2573755Y (en) * | 2002-07-26 | 2003-09-17 | 嘉善长盛滑动轴承有限公司 | Self-lubricating leadless bearing |
| CN2575287Y (en) * | 2002-09-26 | 2003-09-24 | 胜利石油管理局钻井工艺研究院 | Polish rod anti-theft protective apparatus |
| CN101413544A (en) * | 2008-12-01 | 2009-04-22 | 江苏希西维轴承有限公司 | Self-lubricating slide bearing by oil lubrication or grease lubrication |
| CN201363103Y (en) * | 2009-01-13 | 2009-12-16 | 西南石油大学 | Compound anti-wear torque-reducing tool |
| CN201443307U (en) * | 2009-04-30 | 2010-04-28 | 杜明乾 | Sucking-aid centralizer for sucker rod |
| CN101832111A (en) * | 2010-04-28 | 2010-09-15 | 中国科学院力学研究所 | Bi-directionally sliding pup-joint coupling centralizer |
| CN201934029U (en) * | 2011-01-24 | 2011-08-17 | 彭书畅 | Anti-friction, anti-sticking and anti-wear tool for drilling tool |
-
2011
- 2011-01-24 CN CN2011100332408A patent/CN102071885A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996003568A1 (en) * | 1994-07-28 | 1996-02-08 | Jerome Kemick | Sacrificial wear bearing |
| CN2573755Y (en) * | 2002-07-26 | 2003-09-17 | 嘉善长盛滑动轴承有限公司 | Self-lubricating leadless bearing |
| CN2575287Y (en) * | 2002-09-26 | 2003-09-24 | 胜利石油管理局钻井工艺研究院 | Polish rod anti-theft protective apparatus |
| CN101413544A (en) * | 2008-12-01 | 2009-04-22 | 江苏希西维轴承有限公司 | Self-lubricating slide bearing by oil lubrication or grease lubrication |
| CN201363103Y (en) * | 2009-01-13 | 2009-12-16 | 西南石油大学 | Compound anti-wear torque-reducing tool |
| CN201443307U (en) * | 2009-04-30 | 2010-04-28 | 杜明乾 | Sucking-aid centralizer for sucker rod |
| CN101832111A (en) * | 2010-04-28 | 2010-09-15 | 中国科学院力学研究所 | Bi-directionally sliding pup-joint coupling centralizer |
| CN201934029U (en) * | 2011-01-24 | 2011-08-17 | 彭书畅 | Anti-friction, anti-sticking and anti-wear tool for drilling tool |
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Application publication date: 20110525 |