CN201053297Y - Non-rotating drag reduction low-torsion drill rod protector - Google Patents
Non-rotating drag reduction low-torsion drill rod protector Download PDFInfo
- Publication number
- CN201053297Y CN201053297Y CNU2007201212953U CN200720121295U CN201053297Y CN 201053297 Y CN201053297 Y CN 201053297Y CN U2007201212953 U CNU2007201212953 U CN U2007201212953U CN 200720121295 U CN200720121295 U CN 200720121295U CN 201053297 Y CN201053297 Y CN 201053297Y
- Authority
- CN
- China
- Prior art keywords
- resistance absorber
- housing
- drag reduction
- described resistance
- protector
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a non-revolving resistance reduction low torsion drill pipe protector used on a drill pipe, at least comprising a damping device mandril and a housing of a damping device, wherein, the two ends of the mandril are respectively provided with male threads and master threads connected with the drill pipe; the housing of damping device is arranged by winding the middle section of the mandril of damping device; the housing of damping device is provided with at least a group of ball bearings for reducing the friction drag between the drill pipe and the inner wall of a bored well. The utility model has convenient assembly because of the fact that the male threads and master threads on the two ends are connected with the drill pipe, which saves plentiful assembling time, and meanwhile the ball bearing arranged on the housing of protector greatly reduces the friction between the drill pipe protector and the inner wall of a borehole in the process of boring well and improves the drilling performance of the drill outfit.
Description
Technical field
The utility model relates to a kind of drilling rod protective device, particularly relates to the low twist-drill bar protector of non-rotating drag reduction that a kind of oil drilling is used.
Background technology
Extended reach well drilling of the prior art becomes a kind of means of old filed volume increase day by day, but extended reach well drilling also brings problems such as the drilling rod moment of torsion is big, casing wear is serious.Simultaneously, during oil drilling platform work at sea, because it is leased and costs an arm and a leg, one minute and one second of drilling well work all means a large amount of expenses.Therefore, how to improve the drilling well operating efficiency, the protection drilling rod does not suffer damage at work becomes the problem that oil drilling company and petroleum tool company consider emphatically.
The protected degree that adopts non-rotating drill pipe protector to improve drilling rod has been arranged at present, and device as shown in Figure 1 comprises two thrust hoops 11,12 and a sliding sleeve 13, is provided with on the drilling rod; Because every general tens meters long on the drilling rod that oil drilling is used is set to a pin thread and a box respectively at two ends, punch to subterranean well by connecting many drilling rods successively, can extend to below the underground km.In drilling process, drilling rod may be subjected to from the obstruction of underground sandstone and impact.
In the non-rotating drill pipe protector of prior art, the described sliding sleeve 13 general plastics that adopt are made, and need directly be assembled on the drilling rod.Site assembly has increased installation time like this, has taken the drilling well working time, just is equivalent to improve job costs; And since drilling rod in the underground impact that is subjected to sandstone easily; non-rotating drill pipe protector damages easily; in case damage; not only need to change whole drilling rod; and broken sliding sleeve 13 might fall in the drilling well wellhole; stop up working hole, bring obstruction, even might cause accident such as drill rod breaking to follow-up work.
Therefore, there is defective in prior art, requires further improvement and develops.
The utility model content
The purpose of this utility model is to provide a kind of non-rotating drag reduction to hang down twist-drill bar protector; it is the low twist-drill bar protector of an independently non-rotating drag reduction; be connected between the drilling rod; can shorten the time that drill pipe protector is installed at the construction field (site); reduce the frictional force of this protector simultaneously with contact surface; reduce the moment of torsion of drilling rod, the protection drilling rod is without prejudice.
The technical solution of the utility model is as follows:
A kind of non-rotating drag reduction hangs down twist-drill bar protector, and it is used for drilling rod, comprises at least: a resistance absorber mandrel, its two ends are set to the screw thread pin thread and the box that are connected with drilling rod respectively; And a resistance absorber housing, be provided with around described resistance absorber mandrel stage casing; And on this resistance absorber housing, be provided with at least one group of ball, be used to reduce the frictional resistance of described drilling rod and drilling well inwall.
Described non-rotating drag reduction hangs down twist-drill bar protector, wherein, also is provided with a lining in the described resistance absorber housing and between the described resistance absorber mandrel, is connected with described resistance absorber housing, is used to isolate described resistance absorber mandrel and described resistance absorber housing.
Described non-rotating drag reduction hangs down twist-drill bar protector, and wherein, described resistance absorber housing is set to two, is provided with the bearing pin syndeton respectively at the junction surface, is used for loading and unloading described resistance absorber housing from described resistance absorber mandrel.
Described non-rotating drag reduction hangs down twist-drill bar protector, and wherein, described ball is set to three groups, along described resistance absorber housing circumferential distribution.
Described non-rotating drag reduction hangs down twist-drill bar protector, and wherein, described ball is set to six groups, divides two parts up and down, and 60 ° of circumferential distribution interlace.
Described non-rotating drag reduction hangs down twist-drill bar protector, and wherein, described ball is set to roller, and its roller bearing is horizontally installed in the pilot hole of described resistance absorber housing outer wall jut.
A kind of non-rotating drag reduction provided by the utility model hangs down twist-drill bar protector, owing to adopt independently one section connecting rod, the screw thread pin thread by two ends is connected with drilling rod with box, and it is easy to assembly, saved a large amount of field mounted device time, and in case damage replacing easily; Described protector housing is provided with ball simultaneously, in drilling process, has significantly reduced the frictional force of the low twist-drill bar protector of non-rotating drag reduction with the drilling well inwall, has improved the probing performance of drilling equipment, has reduced the impact to drilling rod.
Description of drawings
Fig. 1 is a non-rotating drill pipe protector structure scheme of installation under the prior art;
Fig. 2 is the low twist-drill bar protector cross-sectional view of the non-rotating drag reduction of the utility model;
Fig. 3 is the decomposing schematic representation of the low twist-drill bar protector of the non-rotating drag reduction of the utility model.
The specific embodiment
Below will be described in detail preferred embodiment of the present utility model.
Non-rotating drag reduction of the present utility model hangs down twist-drill bar protector; as shown in Figure 2; it is a syndeton independently; be arranged on the junction of drilling rod; can be provided with at interval with drilling rod; it comprises a resistance absorber mandrel 110; its two ends are set to the screw thread pin thread 111 and the screw thread box 112 that are connected with drilling rod respectively; consistent with the end thread of drilling rod; can connect in turn; when assembling at the scene, respectively the screw thread pin thread of this protector and screw thread box screw thread box and the screw thread pin thread with drilling rod is screwed onto together, is connected on the drilling rod.
The resistance absorber housing 120 of one open column shape is set around described resistance absorber mandrel 110 stage casings, and on this resistance absorber housing 120, be provided with at least one group of ball 121, be preferably three groups of balls are set, every group 4, its rotating direction is the moving direction along described drilling rod, therefore, the roller bearing horizontally set of each ball, as shown in Figure 3; During with described drilling rod drilling well, be rolling friction between these balls and the drilling well inwall, the resistance when having reduced drilling rod work, simultaneously, after drilling rod connects by resistance absorber mandrel 110, during the drilling rod rotation, the resistance absorber housing does not rotate, and has played the bearing effect, thus the moment of torsion when having reduced drilling well greatly.
Resistance absorber housing 120 described in the utility model is set to two halves vertically, last resistance absorber housing 122 and following resistance absorber housing 123, and the junction surface between it is provided with the bearing pin syndeton respectively, is used for from the described resistance absorber housing of described resistance absorber mandrel 110 loading and unloading.The stage casing of described resistance absorber mandrel 110 is set to slightly thin bar footpath, is used to assemble described resistance absorber housing 120, and for realizing the protective effect to drilling rod, described ball 121 need be projected into outside the described drilling rod, is used at first contacting the drilling well inwall.The outside, the junction surface of resistance absorber housing 122 and following resistance absorber housing 123 is provided with one respectively and arranges pin-and-hole 124,125 on described, the corresponding described resistance absorber housing of going up staggers mutually with the eyelet position of following resistance absorber housing bonding station pin-and-hole, when described upward resistance absorber housing 122 and following resistance absorber housing 123 are bonded together, the eyelet of all pin-and-holes is positioned on the straight line, can make bearing pin 125 insert this row's pin-and-hole, the described resistance absorber housing 122 of going up is fixed together with following resistance absorber housing 123, forms described resistance absorber housing.This assembling process is finished in factory, not be used in site assembly, to save the on-the-spot working time.
Also be provided with a lining 130 between described resistance absorber mandrel 110 and the resistance absorber housing 120, be used to isolate described resistance absorber mandrel 110 and described resistance absorber housing 120, reduce the wearing and tearing between them.Described lining 130 is axially having the installation perforate; be used for being set on the described resistance absorber mandrel 110; on the described lining 130 fixing described resistance absorber housings 120; can between described resistance absorber housing 120 and described resistance absorber mandrel 110, form the space like this; under the drilling fluid effect, played the effect of liquid-bearing; make things convenient for drilling rod to rotate with respect to described resistance absorber housing 120 together with described resistance absorber mandrel 110; this moment, described resistance absorber housing 120 can only move up and down in well bore, therefore formed non-rotating drill pipe protector.
The external surface of described resistance absorber housing 120 is provided with a projection 140, and several pilot holes 141 are set on the described projection, is used to install described ball 121, and described ball 121 should exceed described drilling rod after assembling, so that can touch the drilling well inwall, rolls thereon.As shown in Figure 3; described ball 121 profiles that adopted among the utility model embodiment are the olive shape that cuts two ends; be the roller shape; but be not limited to this profile; can be implemented in any dependency structure that forms rolling condition on the drilling rod moving direction with the drilling well inwall on frame for movement, all should be protection domain of the present utility model.
In order further to reduce the frictional force of described drag reduction body with the drilling well inwall, along described resistance absorber housing periphery many group balls can be set, in the present embodiment on described resistance absorber housing 122 in be provided with one group of four ball 121 in the heart, be provided with two groups of totally eight balls at the described two ends of resistance absorber housing 123 down, also can divide each three groups of ball of two parts up and down, interlace 60 °, or increase or reduce the quantity of ball as required.
The utility model protector housing is provided with ball, in drilling process, has significantly reduced the frictional force of the low twist-drill bar protector of non-rotating drag reduction with contact surface, has improved the probing performance of drilling equipment.The ball of this protector, resistance absorber housing and lining etc. all are to be installed in advance on the resistance absorber mandrel, and in the time of at the construction field (site), directly the screw thread pin thread by its two ends is connected with drilling rod with box, and is easy to assembly, saved a large amount of equipment time.
When in the drilling well course of work, when drill pipe protector described in the utility model broke down, drill pipe protector integral body can be directly changed in for example described resistance absorber housing 120 distortion, has reduced taking the drilling well working time.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection domain of the utility model claims.
Claims (6)
1. a non-rotating drag reduction hangs down twist-drill bar protector, and it is used for drilling rod; It is characterized in that, comprise at least: a resistance absorber mandrel, its two ends are set to the screw thread pin thread and the box that are connected with drilling rod respectively; And a resistance absorber housing, be provided with around described resistance absorber mandrel stage casing; And on this resistance absorber housing, be provided with at least one group of ball, be used to reduce the frictional resistance of described drilling rod and drilling well inwall.
2. non-rotating drag reduction according to claim 1 hangs down twist-drill bar protector; it is characterized in that; also be provided with a lining in the described resistance absorber housing and between the described resistance absorber mandrel, be connected, be used to isolate described resistance absorber mandrel and described resistance absorber housing with described resistance absorber housing.
3. non-rotating drag reduction according to claim 1 hangs down twist-drill bar protector, it is characterized in that described resistance absorber housing is set to two, is provided with the bearing pin syndeton respectively at the junction surface, is used for loading and unloading described resistance absorber housing from described resistance absorber mandrel.
4. non-rotating drag reduction according to claim 1 hangs down twist-drill bar protector, it is characterized in that described ball is set to three groups, along described centralizer housing circumferential distribution.
5. non-rotating drag reduction according to claim 1 hangs down twist-drill bar protector, it is characterized in that described ball is set to six groups, divides two parts up and down, and 60 ° of circumferential distribution interlace.
6. non-rotating according to claim 1 or 5 drag reduction hangs down twist-drill bar protector, it is characterized in that described ball is set to roller, and its roller bearing is horizontally installed in the pilot hole of described resistance absorber housing outer wall jut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201212953U CN201053297Y (en) | 2007-07-05 | 2007-07-05 | Non-rotating drag reduction low-torsion drill rod protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201212953U CN201053297Y (en) | 2007-07-05 | 2007-07-05 | Non-rotating drag reduction low-torsion drill rod protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201053297Y true CN201053297Y (en) | 2008-04-30 |
Family
ID=39392961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201212953U Expired - Lifetime CN201053297Y (en) | 2007-07-05 | 2007-07-05 | Non-rotating drag reduction low-torsion drill rod protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201053297Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912223A (en) * | 2014-04-12 | 2014-07-09 | 山东陆海石油装备有限公司 | Swivel bearing type drag reduction tool |
| CN107255018A (en) * | 2017-07-11 | 2017-10-17 | 深圳市远东石油钻采工程有限公司 | A kind of non-rotation centralizer of variable-diameter roller type |
| CN107401377A (en) * | 2017-09-11 | 2017-11-28 | 长江大学 | A kind of deep drilling anti-friction damping device |
| CN112576206A (en) * | 2020-11-24 | 2021-03-30 | 延长油田股份有限公司 | Petroleum drilling tool protection device |
| CN112761545A (en) * | 2021-02-04 | 2021-05-07 | 西南石油大学 | Abrasion-proof drag reducer for drill rod |
| CN112761546A (en) * | 2021-02-04 | 2021-05-07 | 西南石油大学 | Drag-reducing and wear-resisting drill string protector |
| CN113464064A (en) * | 2021-08-06 | 2021-10-01 | 西南石油大学 | Torque overload protection method and device for small-size drill rod of ultra-deep well |
-
2007
- 2007-07-05 CN CNU2007201212953U patent/CN201053297Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912223A (en) * | 2014-04-12 | 2014-07-09 | 山东陆海石油装备有限公司 | Swivel bearing type drag reduction tool |
| CN107255018A (en) * | 2017-07-11 | 2017-10-17 | 深圳市远东石油钻采工程有限公司 | A kind of non-rotation centralizer of variable-diameter roller type |
| CN107401377A (en) * | 2017-09-11 | 2017-11-28 | 长江大学 | A kind of deep drilling anti-friction damping device |
| CN112576206A (en) * | 2020-11-24 | 2021-03-30 | 延长油田股份有限公司 | Petroleum drilling tool protection device |
| CN112761545A (en) * | 2021-02-04 | 2021-05-07 | 西南石油大学 | Abrasion-proof drag reducer for drill rod |
| CN112761546A (en) * | 2021-02-04 | 2021-05-07 | 西南石油大学 | Drag-reducing and wear-resisting drill string protector |
| CN112761545B (en) * | 2021-02-04 | 2022-04-12 | 西南石油大学 | Abrasion-proof drag reducer for drill rod |
| CN113464064A (en) * | 2021-08-06 | 2021-10-01 | 西南石油大学 | Torque overload protection method and device for small-size drill rod of ultra-deep well |
| CN113464064B (en) * | 2021-08-06 | 2023-07-21 | 西南石油大学 | Torque overload protection method and device for ultra-deep well small-size drill rod |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201053297Y (en) | Non-rotating drag reduction low-torsion drill rod protector | |
| USRE46746E1 (en) | Mud-lubricated bearing assembly with mechanical seal | |
| US9163457B2 (en) | Pressure compensation system for an oil-sealed mud motor bearing assembly | |
| WO2010057221A3 (en) | Subsea drilling with casing | |
| CA2806040A1 (en) | Wellbore tool with exchangable blades | |
| CN205840809U (en) | A kind of New Kind of Anti-Abrasion type stile | |
| CN105134118A (en) | Cutting method for coiled tubing cutting tool string | |
| CN202832209U (en) | Sidetracking well slim hole chambering tool | |
| CN114109252A (en) | Control device for realizing full rotation orientation of drill column | |
| CN102536113A (en) | Underground electric drill device and method capable of reducing torque borne by drill stem | |
| US20110168407A1 (en) | Bearing contact pressure reduction in well tools | |
| CN201246114Y (en) | Anti-friction and twist well drilling collar | |
| US20120103592A1 (en) | Down hole well tool provided with a piston | |
| CN104251262A (en) | Magnetic bearing section for turbine drill | |
| US9683409B2 (en) | Pressure compensation system for a motor bearing assembly | |
| CN105507808A (en) | Underground drilling tool motor | |
| CN201121494Y (en) | Drilling tool drag reduction machine | |
| CN205532371U (en) | Anti -abrasion sleeve body of oil drill pipe abrasionproof protector | |
| CN211059352U (en) | Lower floating sealing device | |
| CN110185385B (en) | Double-drill hollow push-pull system for torque self-balancing drilling tool system | |
| CN203655180U (en) | Maintenance and protection device for oil-well operation | |
| CN204082907U (en) | Magnetic suspension bearing for turbodrill saves | |
| CN205743756U (en) | Needle roller spiral centering device | |
| CN205297447U (en) | Well workover annular blowout preventer is bored in oil field | |
| US10352108B2 (en) | Mill catch mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: JIANG KE Owner name: SHENZHEN YUANDONG OIL DRILLING + ENGINEERING CO., Free format text: FORMER OWNER: SHENZHEN FAR EAST OIL TOOLS LTD. Effective date: 20100927 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100927 Address after: 518068 Shenzhen city Nanshan District Chiwan petroleum logistics base D3-4 Patentee after: Shenzhen Far East Oil Drilling Engineering Co., Ltd. Address before: 518068 Guangdong city of Shenzhen province Nanshan District Chiwan petroleum logistics base D3-4 Co-patentee before: Jiang Ke Patentee before: Shenzhen Far East Oil Tools Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080430 |
|
| CX01 | Expiry of patent term |