CN201502339U - Split composite liner-typed torque-reduction wear-prevention tool - Google Patents
Split composite liner-typed torque-reduction wear-prevention tool Download PDFInfo
- Publication number
- CN201502339U CN201502339U CN2009201770978U CN200920177097U CN201502339U CN 201502339 U CN201502339 U CN 201502339U CN 2009201770978 U CN2009201770978 U CN 2009201770978U CN 200920177097 U CN200920177097 U CN 200920177097U CN 201502339 U CN201502339 U CN 201502339U
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- composite bush
- split
- torque
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Abstract
The utility model relates to a split composite liner-typed torque-reduction wear-prevention tool used for oil, gas and geology drilling. The tool can effectively reduce the torque of a drill string, prevent or remit the abrasion of a sleeve and a drill stem in the drilling process and prolong the service life of an oil well. The torque-reduction wear-prevention tool is formed by assembling a body, a split composite liner, a roll ball and fastening check rings, wherein a concave annular groove is processed in the middle of the body for installing an inner ring and an outer ring; the roll ball is arranged between the inner ring and the outer ring; two semi-composite liners are connected with each other by a pin; and the upper end and the lower end of the split composite line are respectively provided with an upper fastening check ring and a lower fastening check ring by bolts. The tool has the advantages of good torque-reduction and wear-prevention effects, flexible rotation, long service life and the like; in addition, the tool can effectively protect the joints of the sleeve and the drill stem and can be used in an extended-reach well, a deep-straight well with the super-standard dog-leg angle and a super-deep well.
Description
Technical field
The utility model relates to a kind of special downhole tool that is used for oil, natural gas and geological drilling, subtracts the abrasionproof instrument of turning round in particular for boring dark straight well that deep-well, extended reach well, dog-leg degree exceed standard and a kind of composite bush formula of splitting of ultradeep well.
Background technology
Petroleum gas and geological drilling turntable rotate and drive drill string rotating, and drill string will bear bigger frictional resistance in the dark straight well that extended reach well and dog-leg degree exceed standard.Moment of torsion surpasses the drill string ability to bear will cause the drilling tool fracture failure, causes and can't creep into.Rotary drill column and borehole wall sleeve pipe come in contact friction, and contact friction directly causes the fretting wear of sleeve pipe and drill string, and friction factor is big more, the dog-leg degree is serious more, lateral load (or drill string deadweight) is big more and rotating speed is high more, and then wearing and tearing are fast more.To demote after the drill string heavy wear and use or directly scrap.Bulk strength reduces behind the casing wear, squeezes very easily too early under complex geological conditions and ruins with run-down, thereby have a strong impact on oil well life-span and oil-gas mining.
Drill string subtracts turns round the acquisition attention day by day in recent years of abrasionproof problem, especially in the drilling well of gas as circulatory mediator.Recognized the seriousness of this problem in recent years both at home and abroad, from casing programme optimal design, drilling assembly, lubricating additive with subtract each side such as turning round the abrasionproof instrument and carried out deep research, and proposed to be applied in the drilling process theory with regard to protective casing.Present commonly used subtracting turned round the abrasionproof instrument and mainly contained rotation abrasionproof TC shell type and nonmetallic composite formula two classes.The former long service life, latter's abrasionproof is effective, but rotating property is waited to improve.
At present, homemade subtracting turned round abrasionproof measure instrument and remains in many problems.Abroad subtract and turn round abrasionproof measure instrument development early, also ripe, but be subjected to the restriction of intellectual property, material and processing technology, domesticly still can't low-costly use external subtracting turn round the abrasionproof instrument.Domesticly mainly developed subtracting of two kinds of forms and turn round the abrasionproof instrument, a kind of is rotation abrasionproof TC shell type, and a kind of is the nonmetallic composite formula.The major advantage of present homemade rotation abrasionproof TC shell type abrasionproof instrument is that the life-span is long, and shortcoming is the abrasionproof weak effect, and stuck easily; At present the major advantage of home rubber formula abrasionproof instrument is to subtract that to turn round abrasionproof effective, and shortcoming is to tear in some hole condition to lose efficacy to take place.The homemade state of the art of turning round the abrasionproof instrument that subtracts has hindered to subtract and has turned round applying of abrasionproof technology, and along with the increase of deep-well and extended reach well probing workload, sleeve pipe subtracts that to turn round the abrasionproof problem urgent day by day.
Summary of the invention
The purpose of this utility model is: be to solve the deficiencies in the prior art, prevent or alleviate sleeve pipe and the moment of torsion of drill string in drilling process is big and wearing and tearing than serious problems, the spy provides a kind of composite bush formula of splitting to subtract the abrasionproof instrument of turning round.
In order to achieve the above object, the technical scheme that the utility model adopted is: the utility model is a kind of split the composite bush formula subtract turn round the abrasionproof instrument by body, split composite bush, ball and the assembling of fastening back-up ring and constitute, described body middle part is processed with one section sunk cannelure, cannelure is used for installing splits composite bush, and alternate on the cannelure have the twice semi-circular recesses to be used to install two and half inner rings; The described inner surface of splitting composite bush is alternate to have the twice semi-circular recesses to be used to install two semi outer rings; Between inner ring and outer ring ball is installed, two and half composite bushs connect with connecting pin, split composite bush and are separately installed with down fastening back-up ring and tighten back-up ring with bolt in two ends up and down.
The described composite bush of splitting is made up of two and half composite bushs, the alloy steel sleeve outer surface sulfuration of each half composite bush has rubber bushing, inner surface has alternate groove to be used to install two semi outer rings, be useful on the axial hole that connecting pin is installed on two and half composite bushs, split composite bush and be useful on installation fastening back-up ring and the bolt radial hole that tightens back-up ring down in two ends up and down.
The utility model compared with prior art, its beneficial effect is: 1, can effectively reduce the moment of torsion of drill string, prevent the drilling tool fracture failure, improve rate of penetration; Simultaneously, can effectively reduce the drill string joints wear, improve the application life of drill string and whole drilling tool; 2, reduce casing wear, prolong the oil well long service life; 3, split composite bush external surface vulcanized rubber material, can absorb the drilling tool oscillation crosswise, improve drilling tool stability in the course of work; 4, split composite bush and be made of two and half composite bushs, connect with pin, matching used with it Internal and external cycle, fastening back-up ring is formed by half-open structure up and down, more resleeve is convenient, be connected the location with steel ball between lining and the mandrel, lining rotates flexibly, can prevent effectively that lining and mandrel are stuck; 5, the utility model can be used for boring in the wellbore construction of deep-well, extended reach well, dark straight well that the dog-leg degree exceeds standard and ultradeep well, can effectively reduce the drill string moment of torsion, improves the application life of sleeve pipe, drill string and other drilling tool.
Description of drawings
Fig. 1 is that the utility model is split the composite bush formula and subtracted the structural representation of turning round the abrasionproof instrument;
Fig. 2 is the A-A sectional schematic diagram of Fig. 1;
Fig. 3 be the utility model split the composite bush formula subtract turn round the abrasionproof instrument split the composite bush structural representation.
Among the figure, 1. body, 2. time fastening back-up ring is 3. split composite bush, 4. rubber bushing, 5. semi outer rings, 6. ball, 7. half inner ring 8. tightens back-up ring, 9. bolt, 10. connecting pin, 11. alloy steel linings, 12. cannelures.
The specific embodiment
As Fig. 1 Fig. 2 and shown in Figure 3, be that a kind of composite bush formula of splitting of the utility model subtracts the abrasionproof instrument of turning round, mainly by body 1, split composite bush 3, ball 6, tighten back-up ring 8 and 2 assemblings of down fastening back-up ring constitute, described body 1 middle part is processed with one section sunk cannelure 12, cannelure 12 is used for installing splits composite bush 3, and alternate on the cannelure 12 have the twice semi-circular recesses to be used to install two half-open inner rings 7; The described inner surface of splitting composite bush 3 has alternate groove to be used to install half-open outer back-up ring 5, half-open inner shield ring 7 and half-open outside ball 6 is installed between the back-up ring 5; Two and half composite bushs connect with connecting pin 10, split composite bush and are separately installed with down fastening back-up ring 2 and tighten back-up ring 8 with bolt 9 in two ends about in the of 3.
The described composite bush 3 of splitting is made up of two and half composite bushs, each half composite bush alloy steel lining, 11 external surfaces sulfuration has rubber bushing 4, inner surface has alternate groove to be used to install two semi outer rings 5, be useful on the axial hole that connecting pin 10 is installed on two and half composite bushs, split composite bush and be useful on bolt 9 radial holes of down fastening back-up ring 2 being installed and being tightened back-up ring 8 in two ends about in the of 3.
A kind of composite bush formula of splitting subtracts the operating principle of turning round the abrasionproof instrument and is: body 1 upper and lower end is installed in respectively on drilling rod or other drilling tool; in drilling process; body 1 rotates with drilling rod or other drilling tool; split between composite bush 3 and the body 1 ball 6 is installed; be equivalent to bearing arrangement; exist between the two and relatively rotate; split the maximum outside diameter of composite bush 3 external diameters greater than tool joint or other drilling tool; rubber bushing 4 materials are softer; the effect of tempering to sleeve pipe is little; effectively protective casing and tool joint, and can effectively reduce the drill string moment of torsion.
Claims (2)
1. split the composite bush formula and subtract the abrasionproof instrument of turning round for one kind, mainly by body (1), split composite bush (3), ball (6), tighten back-up ring (8) and down fastening back-up ring (2) assembling constitute, it is characterized in that: described body (1) middle part is processed with one section sunk cannelure (12), cannelure (12) is used for installing splits composite bush (3), and cannelure (12) is upward alternate to have the twice semi-circular recesses to be used to install two and half inner rings (7); The described inner surface of splitting composite bush (3) is alternate to have the twice groove to be used to install two semi outer rings (5); Between inner ring (7) and outer ring (5) ball (6) is installed, two and half composite bushs connect with connecting pin (10), split composite bush (3) and are separately installed with down fastening back-up ring (2) and tighten back-up ring (8) with bolt (9) in two ends up and down.
2. the composite bush formula of splitting according to claim 1 subtracts the abrasionproof instrument of turning round, it is characterized in that: the described composite bush (3) of splitting is made up of two and half composite bushs, each half composite bush is in the sulfuration of alloy steel bushing (11) external surface rubber bushing (4) to be arranged, inner surface has alternate semi-circular recesses to be used to install two semi outer rings (5), be useful on the axial hole that connecting pin (10) is installed on two and half composite bushs, split composite bush (3) and be useful on bolt (9) radial hole of following fastening back-up ring (2) being installed and being tightened back-up ring (8) in two ends up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201770978U CN201502339U (en) | 2009-09-24 | 2009-09-24 | Split composite liner-typed torque-reduction wear-prevention tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201770978U CN201502339U (en) | 2009-09-24 | 2009-09-24 | Split composite liner-typed torque-reduction wear-prevention tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201502339U true CN201502339U (en) | 2010-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201770978U Expired - Fee Related CN201502339U (en) | 2009-09-24 | 2009-09-24 | Split composite liner-typed torque-reduction wear-prevention tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201502339U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102386692A (en) * | 2011-09-02 | 2012-03-21 | 西南石油大学 | Ball filling screw drill stator and processing technology |
| CN103883264A (en) * | 2014-03-21 | 2014-06-25 | 中国石油天然气股份有限公司冀东油田分公司钻采工艺研究院 | Ceramic coating anti-eccentric drill column antifriction torque-reducing pup joint |
| CN105134101A (en) * | 2015-08-21 | 2015-12-09 | 西南石油大学 | Deepwater drilling riser and drill pipe anti-abrasion anti-attrition protection device |
| CN107060660A (en) * | 2016-12-22 | 2017-08-18 | 中国石油天然气集团公司 | Deepwater drilling pipe |
-
2009
- 2009-09-24 CN CN2009201770978U patent/CN201502339U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102386692A (en) * | 2011-09-02 | 2012-03-21 | 西南石油大学 | Ball filling screw drill stator and processing technology |
| CN103883264A (en) * | 2014-03-21 | 2014-06-25 | 中国石油天然气股份有限公司冀东油田分公司钻采工艺研究院 | Ceramic coating anti-eccentric drill column antifriction torque-reducing pup joint |
| CN105134101A (en) * | 2015-08-21 | 2015-12-09 | 西南石油大学 | Deepwater drilling riser and drill pipe anti-abrasion anti-attrition protection device |
| CN105134101B (en) * | 2015-08-21 | 2017-05-24 | 西南石油大学 | Deepwater drilling riser and drill pipe anti-abrasion anti-attrition protection device |
| CN107060660A (en) * | 2016-12-22 | 2017-08-18 | 中国石油天然气集团公司 | Deepwater drilling pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhu Xiaohua Inventor after: Wu Hua Inventor after: Liu Shaohu Inventor after: Shi Changshuai Inventor after: Wang Jiandong Inventor after: Peng Wenyue Inventor after: Tong Hua Inventor before: Zhu Xiaohua Inventor before: Liu Shaohu |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHU XIAOHUA LIU SHAOHU TO: ZHU XIAOHUA WU HUA LIU SHAOHU SHI CHANGSHUAI WANG JIANDONG PENG WENYUE TONG HUA |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100609 Termination date: 20130924 |