CN105370223A - Drill pipe screw thread protector - Google Patents
Drill pipe screw thread protector Download PDFInfo
- Publication number
- CN105370223A CN105370223A CN201510916337.1A CN201510916337A CN105370223A CN 105370223 A CN105370223 A CN 105370223A CN 201510916337 A CN201510916337 A CN 201510916337A CN 105370223 A CN105370223 A CN 105370223A
- Authority
- CN
- China
- Prior art keywords
- carry
- screw thread
- drill pipe
- fixedly installed
- hold
- 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.)
- Granted
Links
- 230000001012 protector Effects 0.000 title claims abstract description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 42
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 21
- 239000000428 dust Substances 0.000 claims description 6
- 238000005553 drilling Methods 0.000 abstract description 42
- 238000000034 method Methods 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/02—Rod or cable suspensions
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a drill pipe screw thread protector. The drill pipe screw thread protector is composed of a lifting and guiding device and a stretching and returning device, the stretching and returning device is arranged in the lifting and guiding device, when the drill pipe screw thread protector is connected with a drilling tool ready and a lifter lifts the drilling tool, a lower lifting body drives an upper carrying joint to move downward and compress a nitrogen spring, then the nitrogen spring is compressed to the maximum state, when a holder clamps the drilling tool tightly, the lifter is operated to loosen a steel wire rope, then a lifter winding drum is braked, due to the fact that lifting and lowering the steel wire rope is subjected to pulling force action of the nitrogen spring, the loosened steel wire rope is stretched tightly once again, a drill pipe on a machine is adjusted from the inclined state to the vertical state, and most weight of the drill pipe on the machine is counteracted. By means of the drill pipe screw thread protector, abrasion of a drill pipe screw thread is effectively alleviated, the working condition in the drill pipe thread screwing-off process is improved, the frictional resistance for screwing off the drill pipe is substantially reduced, it is helpful to prolong the service life of the drill pipe screw thread, and labor intensity for screwing off the drill pipe is lowered.
Description
Technical field
The present invention relates to the instrument of a kind of lifting drilling tool of drilling equipment, particularly a kind of drill rod thread thread protector.
Background technology
When using rig to carry out bore operation, often because adding stacks, carry and bore more bit change or extract rock core and unloading drilling rod, in unloading drilling rod process, the screw thread connected is due to the effect of the weight of drilling rod on the machine of top, double thread screw thread imposes severe pressure, there is wear damage in screw thread, also make artificial unloading work very heavy, increase the labour intensity of workman, inefficiency, prior art smears dope when the operation of unloading drilling rod thread, drill rod connecting hand in use adopts high-quality steel besides, improve the application life of screw thread, however, the wearing and tearing of drill rod thread screw thread are still a kind of common form of drilling tool failure, also be one of principal element of the current drilling tool tubing consumption of impact.
When the operation of unloading drilling tool, after drilling tool clamps by aperture clamper, what operation hoist lifting drilling tool was suitable loosens wire rope; carry out the operation of unloading pipe again; but on machine, drilling rod can produce deflection usually, and in this condition, unloading drilling tool often directly can damage screw thread.
Summary of the invention
The serious wear of double thread screw thread when the object of the invention is to solve above-mentioned existing unloading drilling rod operation; the application life of screw thread is short, and consumables cost is high, and workman's unloading labour intensity is large; the problems such as inefficiency, and a kind of drill rod thread thread protector is provided.
The present invention is by carrying leading-in device and stretching returning device forms, and stretching returning device is arranged on to be carried in leading-in device;
Carry leading-in device to comprise carrying and draw ring, the first cottor pin, hold-down nut, pad, dust cover, bearing, carry holding and carrying and draw body, carry and draw ring and be fixedly installed on to carry and hold, first cottor pin, hold-down nut, nut shim, dust cover, bearing and carry holding to be fixedly installed on successively to carry and draw on body, carry and draw body and have the first external screw thread and hollow hole;
Stretching returning device comprises undertaking top connection, under carry and holding, nitrogen spring, bearing sleeve, saddle connector, horizontal bolt, second cottor pin, accept lower contact, shelves pin and garter spring, accept top connection and there is the first internal thread, under carry and hold upper end there is the second external screw thread, under carry and hold lower end there is the first groove and open slot, bearing sleeve has the second groove, undertaking top connection is fixedly installed on down to carry by the first internal thread and the second external screw thread holds upper end, horizontal bolt is fixed by the second cottor pin and is passed on groove with in the second groove, saddle connector is fixedly installed on horizontal bolt, nitrogen spring two ends are fixedly installed on top connection and saddle connector respectively, undertaking lower contact is fixedly installed on to carry by the first external screw thread draws body lower end, bearing sleeve is fixedly installed on to carry by undertaking lower contact and draws in body, shelves pin is fixedly installed on to carry and draws body lower end, garter spring is movably arranged on open slot place.
Operating principle of the present invention and process:
When the present invention does not connect drilling tool, under carry and hold inner nitrogen spring without compressive force, be in normal condition, after the present invention connects drilling tool, garter spring is movably arranged on the otch of drilling tool upper end, during hoist lifting drilling tool, under the weight effect of drilling tool, under carry hold drive accept top connection move down, and compressed nitrogen spring, because drilling tool weight is far longer than the spring force of nitrogen spring, at this moment nitrogen spring is compressed to maximum rating, accepting top connection lower step rides on the upper surface of bearing sleeve, under carry that to hold extension elongation L be maximum length, at this moment lifting force draws by carrying, on carry and holding, carry and draw body, accept lower contact, bearing sleeve, accept top connection and under carry and hold transmission, when clamp holder clamping drilling tool, the pulling force that the present invention bears significantly reduces due to the effect of clamper, operation hoist relaxes wire rope, and control the relaxed length of its wire rope, then hoist drum is braked, because lifting wire rope is by the pulling force effect of nitrogen spring, lax wire rope is again exceptionally straight, under carry and hold extension elongation L and shorten, control the length that the length L after shortening is greater than drill rod thread screw thread, at this moment on machine ground being treated unloading, drilling rod (or drill-pipe stand) is by the effect of nitrogen spring pulling force thereon, counteract treat unloading machine on drilling rod (or drill-pipe stand) most weight, drilling rod is adjusted to plumbness by heeling condition simultaneously, thus condition of work when improving drill rod thread unloading, significantly reduce the frictional resistance of unloading drilling rod, effectively slow down the wearing and tearing of drill rod thread screw thread, protection is conducive to the application life of improving drill rod thread screw thread, alleviate the labour intensity of unloading drilling rod.
Beneficial effect of the present invention:
The present invention is from the root producing the wearing and tearing of drill rod thread screw thread, significantly decrease the frictional resistance of unloading drilling rod, effectively slow down the wearing and tearing of drill rod thread screw thread, improve the application life of screw thread, alleviate the labour intensity of workman's unloading, increase work efficiency, contribute to reducing tubing consumption, reduce cost of production, and gather the function of elevator, have the advantages that structure is simple, compact.
Accompanying drawing explanation
Fig. 1 is sectional view of the present invention.
Fig. 2 is the sectional view of the present invention when working.
Fig. 3 is with unscrewing of drill rod operation schematic diagram of the present invention.
Fig. 4 is that conventional elevator C ' is at unscrewing of drill rod operation schematic diagram.
Detailed description of the invention
Refer to shown in Fig. 1, the present invention is by carrying leading-in device 1 and stretching returning device 2 forms, and stretching returning device 2 is arranged on to be carried in leading-in device 1;
Carry leading-in device 1 to comprise carrying and draw ring 11, first cottor pin 12, hold-down nut 13, pad 14, dust cover 15, bearing 16, carry and hold 17 and carry and draw body 18, carry and draw ring 11 and be fixedly installed on to carry and hold on 17, first cottor pin 12, hold-down nut 13, nut shim 14, dust cover 15, bearing 16 and carrying holds 17 and is fixedly installed on successively to carry and draws on body 18, carries drawing body 18 and having the first external screw thread 181 and hollow hole 182;
Stretching returning device 2 comprises accepts top connection 21, under carry and hold 22, nitrogen spring 23, bearing sleeve 24, saddle connector 25, horizontal bolt 26, second cottor pin 27, accept lower contact 28, shelves pin 29 and garter spring 210, accept top connection 21 and there is the first internal thread 211, under carry and hold 22 upper ends there is the second external screw thread 221, under carry and hold 22 lower ends there is the first groove 222 and open slot 223, bearing sleeve 24 has the second groove 241, undertaking top connection 21 is fixedly installed on down to carry by the first internal thread 211 and the second external screw thread 221 holds 22 upper ends, horizontal bolt 26 is fixed by the second cottor pin 27 and is passed on groove 222 with in the second groove 241, saddle connector 25 is fixedly installed on horizontal bolt 26, nitrogen spring 23 two ends are fixedly installed on top connection 21 and saddle connector 25 respectively, undertaking lower contact 28 is fixedly installed on to carry by the first external screw thread 181 draws body 18 lower end, bearing sleeve 24 is fixedly installed on to carry by undertaking lower contact 28 and draws in body 18, shelves pin 29 is fixedly installed on to carry and draws body 18 lower end, garter spring 210 is movably arranged on open slot 223 place.
Operating principle of the present invention and process:
Consult Fig. 1, Fig. 2, shown in Fig. 3 and Fig. 4, operating principle of the present invention and process: when C of the present invention is not connected drilling tool 3, under carry hold 22 inside nitrogen spring 23 without compressive force, be in normal condition, after C of the present invention connects drilling tool 3, garter spring 210 is movably arranged on the otch of drilling tool 3 upper end, during hoist lifting drilling tool 3, under the weight effect of drilling tool 3, under carry hold 22 drives accept top connections 21 move down, and compressed nitrogen spring 23, because drilling tool 3 weight is far longer than the spring force of nitrogen spring 23, at this moment nitrogen spring 23 is compressed to maximum rating, accepting top connection 21 lower step rides on the upper surface of bearing sleeve 24, under carry that to hold 22 extension elongation L be maximum length, at this moment lifting force draws 11 by carrying, on carry and hold 17, carry and draw body 18, accept lower contact 28, bearing sleeve 24, accept top connection 21 and under carry and hold 22 transmission, when clamper 4 clamps drilling tool 3, the pulling force that C of the present invention bears significantly reduces due to the effect of clamper 4, operation hoist A relaxes wire rope B, and control the relaxed length of its wire rope B, then hoist A reel is braked, because lifting wire rope B is by the pulling force effect of nitrogen spring 23, lax wire rope B is again exceptionally straight, under carry and hold 22 extension elongation L and shorten, control the length that the length L after shortening is greater than drill rod thread screw thread, at this moment on machine ground being treated unloading, drilling rod 5 (or drill-pipe stand) is by the effect of nitrogen spring 22 pulling force thereon, counteract treat unloading machine on drilling rod 5 (or drill-pipe stand) most weight, drilling rod 5 is adjusted to plumbness by heeling condition simultaneously, thus condition of work when improving drill rod thread unloading, significantly reduce the frictional resistance of unloading drilling rod, effectively slow down the wearing and tearing of drill rod thread screw thread, protection is conducive to the application life of improving drill rod thread screw thread, alleviate the labour intensity of unloading drilling rod.
Claims (1)
1. a drill rod thread thread protector, is characterized in that: by carrying leading-in device (1) and stretching returning device (2) forms, stretching returning device (2) is arranged on to be carried in leading-in device (1);
Carry leading-in device (1) to comprise carrying and draw ring (11), first cottor pin (12), hold-down nut (13), pad (14), dust cover (15), bearing (16), carry holding (17) and carrying and draw body (18), carry and draw ring (11) and be fixedly installed on to carry and hold on (17), first cottor pin (12), hold-down nut (13), nut shim (14), dust cover (15), bearing (16) and carrying holds (17) and is fixedly installed on successively to carry and draws on body (18), carry and draw body (18) there is the first external screw thread (181) and hollow hole (182),
Stretching returning device (2) comprises accepts top connection (21), under carry and holding (22), nitrogen spring (23), bearing sleeve (24), saddle connector (25), horizontal bolt (26), second cottor pin (27), accept lower contact (28), shelves pin (29) and garter spring (210), accept top connection (21) and there is the first internal thread (211), under carry and hold (22) upper end there is the second external screw thread (221), under carry and hold (22) lower end there is the first groove (222) and open slot (223), bearing sleeve (24) has the second groove (241), undertaking top connection (21) is fixedly installed on down to carry by the first internal thread (211) and the second external screw thread (221) holds (22) upper end, horizontal bolt (26) is fixed by the second cottor pin (27) and is passed groove (222) above with in the second groove (241), saddle connector (25) is fixedly installed on horizontal bolt (26), nitrogen spring (23) two ends are fixedly installed on top connection (21) and saddle connector (25) respectively, undertaking lower contact (28) is fixedly installed on to carry by the first external screw thread (181) draws body (18) lower end, bearing sleeve (24) is fixedly installed on to carry by undertaking lower contact (28) and draws in body (18), shelves pin (29) are fixedly installed on to carry and draw body (18) lower end, garter spring (210) is movably arranged on open slot (223) place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510916337.1A CN105370223B (en) | 2015-12-10 | 2015-12-10 | A kind of drill rod thread thread protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510916337.1A CN105370223B (en) | 2015-12-10 | 2015-12-10 | A kind of drill rod thread thread protector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105370223A true CN105370223A (en) | 2016-03-02 |
| CN105370223B CN105370223B (en) | 2017-06-23 |
Family
ID=55372781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510916337.1A Expired - Fee Related CN105370223B (en) | 2015-12-10 | 2015-12-10 | A kind of drill rod thread thread protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105370223B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019148358A1 (en) * | 2018-01-31 | 2019-08-08 | 成都科盛石油科技有限公司 | Segmented protection device for drill pipe |
| CN111852360A (en) * | 2019-04-29 | 2020-10-30 | 中国石油天然气集团有限公司 | Method and device for tripping drill pipe |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1217494A (en) * | 1967-02-21 | 1970-12-31 | Robert Colin Pearson | Automatic compensator for crane lifting |
| WO2007145503A1 (en) * | 2006-06-16 | 2007-12-21 | Itrec B.V. | Heave motion compensation |
| CN201915865U (en) * | 2011-01-12 | 2011-08-03 | 福田雷沃国际重工股份有限公司 | Toppling prevention device of hoisting swivel elevator of rotary drilling rig |
| CN102330541A (en) * | 2011-08-05 | 2012-01-25 | 宝鸡石油机械有限责任公司 | Marine drilling riser tensioning system |
| CN202578562U (en) * | 2012-04-10 | 2012-12-05 | 河北华北石油荣盛机械制造有限公司 | Lifting device of drilling machine |
| CN103603611A (en) * | 2013-11-26 | 2014-02-26 | 河北华北石油荣盛机械制造有限公司 | Hoisting system of drilling machine |
| US20140110135A1 (en) * | 2012-10-19 | 2014-04-24 | Premiere, Inc. | Method and Apparatus for Elevator Hobble Compensation |
| CN204342340U (en) * | 2014-11-18 | 2015-05-20 | 中国石油大学(华东) | Novel offshore crane heave compensation system |
| CN104944267A (en) * | 2015-05-11 | 2015-09-30 | 重庆大学 | Double-steel-wire-rope lifting device tension adjusting system |
| CN205189785U (en) * | 2015-12-10 | 2016-04-27 | 吉林大学 | Drilling rod screw thread protector |
-
2015
- 2015-12-10 CN CN201510916337.1A patent/CN105370223B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1217494A (en) * | 1967-02-21 | 1970-12-31 | Robert Colin Pearson | Automatic compensator for crane lifting |
| WO2007145503A1 (en) * | 2006-06-16 | 2007-12-21 | Itrec B.V. | Heave motion compensation |
| CN201915865U (en) * | 2011-01-12 | 2011-08-03 | 福田雷沃国际重工股份有限公司 | Toppling prevention device of hoisting swivel elevator of rotary drilling rig |
| CN102330541A (en) * | 2011-08-05 | 2012-01-25 | 宝鸡石油机械有限责任公司 | Marine drilling riser tensioning system |
| CN202578562U (en) * | 2012-04-10 | 2012-12-05 | 河北华北石油荣盛机械制造有限公司 | Lifting device of drilling machine |
| US20140110135A1 (en) * | 2012-10-19 | 2014-04-24 | Premiere, Inc. | Method and Apparatus for Elevator Hobble Compensation |
| CN103603611A (en) * | 2013-11-26 | 2014-02-26 | 河北华北石油荣盛机械制造有限公司 | Hoisting system of drilling machine |
| CN204342340U (en) * | 2014-11-18 | 2015-05-20 | 中国石油大学(华东) | Novel offshore crane heave compensation system |
| CN104944267A (en) * | 2015-05-11 | 2015-09-30 | 重庆大学 | Double-steel-wire-rope lifting device tension adjusting system |
| CN205189785U (en) * | 2015-12-10 | 2016-04-27 | 吉林大学 | Drilling rod screw thread protector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019148358A1 (en) * | 2018-01-31 | 2019-08-08 | 成都科盛石油科技有限公司 | Segmented protection device for drill pipe |
| CN111852360A (en) * | 2019-04-29 | 2020-10-30 | 中国石油天然气集团有限公司 | Method and device for tripping drill pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105370223B (en) | 2017-06-23 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170623 Termination date: 20211210 |