CN104481418B - Core drill output torque upper limit control drilling rod - Google Patents
Core drill output torque upper limit control drilling rod Download PDFInfo
- Publication number
- CN104481418B CN104481418B CN201410678466.7A CN201410678466A CN104481418B CN 104481418 B CN104481418 B CN 104481418B CN 201410678466 A CN201410678466 A CN 201410678466A CN 104481418 B CN104481418 B CN 104481418B
- Authority
- CN
- China
- Prior art keywords
- core pipe
- drilling rod
- torsion pass
- turnbarrel
- core
- 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.)
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Links
- 238000005553 drilling Methods 0.000 title claims abstract description 78
- 238000007789 sealing Methods 0.000 claims description 17
- 210000000883 ear external Anatomy 0.000 claims description 13
- 210000003027 ear inner Anatomy 0.000 claims description 10
- 210000003128 head Anatomy 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 208000034423 Delivery Diseases 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 230000001105 regulatory effect Effects 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/06—Releasing-joints, e.g. safety joints
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
A kind of core drill output torque upper limit control drilling rod, comprise core pipe, it is provided with joint on the top of core pipe, middle part overcoat at core pipe has turnbarrel, between turnbarrel and core pipe, it is provided with torsion pass bar, it is provided with the circular arc groove that a circle disconnects when core drill output torque is greater than that shaft bottom drilling rod is maximum bears moment of torsion at the middle part of torsion pass bar. The present invention utilizes the circular arc groove being arranged in the middle part of torsion pass bar; when core drill output torque be greater than shaft bottom drilling rod can bear peak torque; the torsion pass relation of core drill active drilling rod and shaft bottom drilling rod is interrupted; realize core drill initiatively drilling rod continuation rotation, the stopping rotation of shaft bottom drilling rod, thus realize the bearing torque overload protection to shaft bottom drilling rod. Weight of the present invention is light, structure simple, easy accessibility, it is possible to the shaft bottom breaking of rod accident effectively avoiding shaft bottom drilling rod to occur because rig output torque is excessive, reduces construction cost, be applicable to deep hole geological exploration engineering.
Description
Technical field
The present invention relates to a kind of geological prospecting equipment, particularly a kind of core drill output torque upper limit control drilling rod.
Background technology
Along with country's " 12 " shallow covered areas engineering and the quick enforcement of geological prospecting " 358 " action plan and development, the directions such as drilling project creeps into more deep formation, more complex layer creeps into, unknown or new discovery geologic province creeps into are developed. The maturation of 2000 meters of deep hole probing processing units develops and is widely used in geological prospecting is constructed, along with the continuous increase of hole depth, required equipment type is also in continuous renewal, the continuous application on market of type and more powerful drilling rigs, and drilling rod plays a part most important as a kind of high cost consumption medium in engineer operation, because the increase of drilling rigs type, rig maximum output torque also increases thereupon, and this proposes severeer test just to shaft bottom drilling rod. Compared with the specified peak torque that traditional common drilling rod and rope coring drill pipe can bear, the specified peak torque that particularly max. output torque of more than 2000 meters types can bear beyond supporting shaft bottom drilling rod, therefore shaft bottom drilling rod easily fractures accident section; Sometimes unusual condition can be there is suddenly when rig normal operation, as shaft bottom drill bit suppress suddenly brill state time, the moment of torsion that shaft bottom drilling rod bears can increase suddenly the specified peak torque that can easily exceed drilling rod and can bear, and so just easily causes the accident that fractures of shaft bottom drilling rod.
Summary of the invention
The technical problem to be solved in the present invention is for the deficiencies in the prior art, it is proposed to a kind of structure is simple, weight light, easy accessibility, it may be achieved to the core drill output torque upper limit control drilling rod of shaft bottom drilling rod bearing torque overload protection.
The technical problem to be solved in the present invention is achieved through the following technical solutions, a kind of core drill output torque upper limit control drilling rod, comprise core pipe, the bottom outer wall of core pipe is provided with the outside screw connecting the supporting drilling rod of core drill, it is provided with on the top of core pipe and the core drill joint that initiatively drilling rod is fixedly connected, it is characterized in: the middle part overcoat at core pipe has turnbarrel, the torsion pass bar that moment of torsion is passed to core pipe it is provided with from turnbarrel between turnbarrel and core pipe, the axial vertical setting of the axis of torsion pass bar and core pipe, the circular arc groove that a circle disconnects it is provided with when core drill output torque is greater than that shaft bottom drilling rod is maximum bears moment of torsion at the middle part of torsion pass bar, one end of described torsion pass bar is fixedly connected by inner ear plate and core pipe, the other end of torsion pass bar is fixedly connected by external ear plate and turnbarrel, a circle boss outwards it is provided with near the end, one end of turnbarrel at torsion pass bar, external ear plate is provided with the circle coordinated with torsion pass bar boss protruding, it is provided with, between external ear plate projection and torsion pass bar boss, the compression spring being sleeved on torsion pass bar, between the lower section core pipe and turnbarrel of torsion pass bar, it is provided with lower bearing pack, between the lower section core pipe and turnbarrel of lower bearing pack, it is provided with lower sealing device, head bearing group it is provided with between core pipe and turnbarrel above torsion pass bar, the bearing being sleeved on core pipe it is provided with above head bearing group, it is provided with upper sealing device between bearing and core pipe, the bottom of described bearing connects by being screwed with the top of turnbarrel, it is provided with by the butt plate of bolt and joint lifting on the top of bearing, degree of tightness and the open holes of bolt attaching nut is had at the middle part of bearing, between bearing butt plate and joint, also it is provided with the sealing being sleeved on core pipe regulates pressing plate, sealing adjustment pressing plate is provided with the passing hole that above-mentioned bolt passes through, described sealing regulates the V-type folder fabric rubber seal being provided with between pressing plate and joint and being sleeved on core pipe.
The technical problem to be solved in the present invention can also be come to realize further by the following technical programs, and described core pipe comprises core pipe and lower core pipe, and the lower end of upper core pipe connects with the threaded upper ends of lower core pipe, is set with the locknut of locking on upper core pipe.
The technical problem to be solved in the present invention can also be come to realize further by the following technical programs, on the outer wall of core pipe, circumference is evenly distributed with some locating slots coordinated with inner ear plate, and the outer wall circumference at turnbarrel is evenly distributed with some pilot holes coordinated with external ear plate.
The technical problem to be solved in the present invention can also be come to realize further by the following technical programs, and described locating slot, pilot hole are equipped with 3.
The technical problem to be solved in the present invention can also be come to realize further by the following technical programs, is provided with the interior hole installing torsion pass bar, is provided with and the female end of torsion pass bar wringing fit on interior hole on inner ear plate.
Compared with prior art, the present invention when core drill output torque be less than shaft bottom drilling rod can bear peak torque, utilize the torsion pass bar being arranged between turnbarrel and core pipe so that turnbarrel, bearing together with core pipe along with core drill initiatively drilling rod rotate; When core drill output torque be greater than shaft bottom drilling rod can bear peak torque; utilize the circular arc groove being arranged in the middle part of torsion pass bar; the torsion pass relation of core drill active drilling rod and shaft bottom drilling rod is interrupted; realize core drill initiatively drilling rod continuation rotation, the stopping rotation of shaft bottom drilling rod, thus realize the bearing torque overload protection to shaft bottom drilling rod. Weight of the present invention is light, structure simple, easy accessibility, it is possible to the shaft bottom breaking of rod accident effectively avoiding shaft bottom drilling rod to occur because rig output torque is excessive, reduces construction cost, be applicable to deep hole geological exploration engineering.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the structural representation of torsion pass bar;
Fig. 3 is the perspective view of bearing.
Embodiment
A kind of core drill output torque upper limit control drilling rod, comprise core pipe, the bottom outer wall of core pipe is provided with the outside screw connecting the supporting drilling rod of core drill, it is provided with on the top of core pipe and the core drill joint 10 that initiatively drilling rod is fixedly connected, middle part overcoat at core pipe has turnbarrel 2, the torsion pass bar 5 that moment of torsion is passed to core pipe it is provided with from turnbarrel between turnbarrel 2 and core pipe, the axial vertical setting of the axis of torsion pass bar and core pipe, the circular arc groove 20 that a circle disconnects it is provided with when core drill output torque is greater than that shaft bottom drilling rod is maximum bears moment of torsion at the middle part of torsion pass bar 5, one end of described torsion pass bar is fixedly connected by inner ear plate 6 and core pipe, the other end of torsion pass bar is fixedly connected by external ear plate 3 and turnbarrel, a circle boss 19 outwards it is provided with near the end, one end of turnbarrel at torsion pass bar, external ear plate 3 is provided with the circle coordinated with torsion pass bar boss protruding, it is provided with, between external ear plate projection and torsion pass bar boss, the compression spring 4 being sleeved on torsion pass bar, between the lower section core pipe and turnbarrel of torsion pass bar, it is provided with lower bearing pack, between the lower section core pipe and turnbarrel of lower bearing pack, it is provided with lower sealing device 18, head bearing group it is provided with between core pipe and turnbarrel 2 above torsion pass bar 5, the bearing 7 being sleeved on core pipe it is provided with above head bearing group, upper sealing device 14 it is provided with between bearing 7 and core pipe, the bottom of described bearing connects by being screwed with the top of turnbarrel, it is provided with by the butt plate 21 of bolt and joint lifting on the top of bearing 7, the open holes 13 of degree of tightness and bolt attaching nut is had at the middle part of bearing, between bearing butt plate and joint, also it is provided with the sealing being sleeved on core pipe regulates pressing plate 12, sealing adjustment pressing plate 12 is provided with the passing hole that above-mentioned bolt passes through, described sealing regulates the V-type folder fabric rubber seal 11 being provided with between pressing plate and joint and being sleeved on core pipe. described upper and lower bearing pack is equipped with a deep groove ball bearing 15 and a thrust ball bearing 16. like this, it is achieved that the rotation function that between turnbarrel and core pipe, radial direction is located mutually. turnbarrel is also provided with the press-fit pressure priming cup 17 of lubricating bearings. the described position that can be adjusted sealing adjustment pressing plate 12 by elasticity bolt, thus realize regulating V-type folder fabric rubber seal 11 inner ring to match with upper core pipe 9 tightness of outside surface, on ensureing not affect again while realizing washing fluid sealing effect, core pipe 9 and bearing 7 relatively rotates. when the moment of torsion that rig exports is less than the specified peak torque that shaft bottom drilling rod can bear, upper core pipe 9 all keeps geo-stationary together with lower core pipe 1 with bearing 7, when rig output torque is greater than the specified peak torque that shaft bottom drilling rod can bear, upper core pipe keeps relatively rotating together with lower core pipe and bearing, and washing fluid is sealed herein.
Described core pipe comprises core pipe 9 and lower core pipe 1, and the lower end of upper core pipe 9 connects with the threaded upper ends of lower core pipe 1, is set with the locknut 8 of locking on upper core pipe 9; On the outer wall of core pipe, circumference is evenly distributed with some locating slots coordinated with inner ear plate, and the outer wall circumference at turnbarrel is evenly distributed with some pilot holes coordinated with external ear plate; Described locating slot, pilot hole are equipped with 3; Inner ear plate 6 is provided with the interior hole installing torsion pass bar, interior hole is provided with and the female end of torsion pass bar wringing fit. Described drilling rod is installed at below core drill active drilling rod and between the drilling rod of shaft bottom; can controlling the upper limit of core drill output torque, the shaft bottom drilling rod avoiding shaft bottom drilling rod to cause due to output torque excessive (exceeding the specified peak torque that shaft bottom drilling rod can bear) during normal or error state (ERST) because core drill is in fractures accident. When output torque is excessive, torsion pass bar 5 disconnects at circular arc groove 20 place, and initiatively the torsion pass relation of drilling rod and shaft bottom drilling rod is interrupted, it is achieved initiatively drilling rod continues to rotate, and shaft bottom drilling rod stops rotating, thus realizes the bearing torque overload protection to shaft bottom drilling rod.
When rig output torque is less than the specified peak torque that shaft bottom drilling rod can bear, turnbarrel 2 and core pipe together rotate with active drilling rod under the effect of torsion pass bar 5, pressurization is when creeping into, and rig is applied to that the pressure of the drill power that initiatively drilling rod is downward passes to bearing 7 successively, turnbarrel 2, core pipe finally pass to shaft bottom drilling rod; When decompression is crept into, shaft bottom drilling rod finally passes to initiatively drilling rod and rig by core pipe, turnbarrel 2, bearing 7 successively from gravity. When rig output torque is greater than the specified peak torque that shaft bottom drilling rod can bear, torsion pass bar disconnects, turnbarrel 2 interrupts with lower core pipe 1 torsion pass relation, turnbarrel 2 continues to rotate under the drive of active drilling rod, lower core pipe 1 and shaft bottom drilling rod stop the rotation, and identical with when normally creeping into by push-and-pull power situation everywhere. When rig output torque is less than the specified peak torque that shaft bottom drilling rod can bear, torsion pass bar normal delivery moment of torsion, links together turnbarrel 2 and lower core pipe 1, and rig output torque passes to shaft bottom drilling rod; When rig output torque is greater than the peak torque that shaft bottom drilling rod can bear; torsion pass bar disconnects at circular arc groove place becomes two sections; one section of torsion pass bar continues to stay in the female end of inner ear plate; another section outwards moves a segment distance to external ear plate place under the effect of compression spring; turnbarrel and lower core pipe disengage herein; turnbarrel continues rotary motion with active drilling rod, and lower core pipe and shaft bottom drilling rod then stop the rotation, and so just achieve the bearing torque overload protection to shaft bottom drilling rod.
Claims (5)
1. a core drill output torque upper limit control drilling rod, comprise core pipe, the bottom outer wall of core pipe is provided with the outside screw connecting the supporting drilling rod of core drill, it is provided with on the top of core pipe and the core drill joint that initiatively drilling rod is fixedly connected, it is characterized in that: the middle part overcoat at core pipe has turnbarrel, the torsion pass bar that moment of torsion is passed to core pipe it is provided with from turnbarrel between turnbarrel and core pipe, the axial vertical setting of the axis of torsion pass bar and core pipe, the circular arc groove that a circle disconnects it is provided with when core drill output torque is greater than that shaft bottom drilling rod is maximum bears moment of torsion at the middle part of torsion pass bar, one end of described torsion pass bar is fixedly connected by inner ear plate and core pipe, the other end of torsion pass bar is fixedly connected by external ear plate and turnbarrel, a circle boss outwards it is provided with near the end, one end of turnbarrel at torsion pass bar, external ear plate is provided with the circle coordinated with torsion pass bar boss protruding, it is provided with, between external ear plate projection and torsion pass bar boss, the compression spring being sleeved on torsion pass bar, between the lower section core pipe and turnbarrel of torsion pass bar, it is provided with lower bearing pack, between the lower section core pipe and turnbarrel of lower bearing pack, it is provided with lower sealing device, head bearing group it is provided with between core pipe and turnbarrel above torsion pass bar, the bearing being sleeved on core pipe it is provided with above head bearing group, it is provided with upper sealing device between bearing and core pipe, the bottom of described bearing connects by being screwed with the top of turnbarrel, it is provided with by the butt plate of bolt and joint lifting on the top of bearing, degree of tightness and the open holes of bolt attaching nut is had at the middle part of bearing, between bearing butt plate and joint, also it is provided with the sealing being sleeved on core pipe regulates pressing plate, sealing adjustment pressing plate is provided with the passing hole that above-mentioned bolt passes through, described sealing regulates the V-type folder fabric rubber seal being provided with between pressing plate and joint and being sleeved on core pipe.
2. the core drill output torque upper limit according to claim 1 control drilling rod, it is characterised in that: described core pipe comprises core pipe and lower core pipe, and the lower end of upper core pipe connects with the threaded upper ends of lower core pipe, is set with the locknut of locking on upper core pipe.
3. the core drill output torque upper limit according to claim 1 control drilling rod, it is characterized in that: on the outer wall of core pipe, circumference is evenly distributed with some locating slots coordinated with inner ear plate, the outer wall circumference at turnbarrel is evenly distributed with some pilot holes coordinated with external ear plate.
4. the core drill output torque upper limit according to claim 3 control drilling rod, it is characterised in that: described locating slot, pilot hole are equipped with 3.
5. the core drill output torque upper limit according to claim 1 control drilling rod, it is characterised in that: on inner ear plate, it is provided with the interior hole installing torsion pass bar, interior hole is provided with and the female end of torsion pass bar wringing fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410678466.7A CN104481418B (en) | 2014-11-24 | 2014-11-24 | Core drill output torque upper limit control drilling rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410678466.7A CN104481418B (en) | 2014-11-24 | 2014-11-24 | Core drill output torque upper limit control drilling rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104481418A CN104481418A (en) | 2015-04-01 |
| CN104481418B true CN104481418B (en) | 2016-06-01 |
Family
ID=52756010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410678466.7A Active CN104481418B (en) | 2014-11-24 | 2014-11-24 | Core drill output torque upper limit control drilling rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104481418B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0439279A1 (en) * | 1990-01-24 | 1991-07-31 | Western Well Tool, Inc. | Drill pipe/casing protector |
| CN2444051Y (en) * | 2000-08-02 | 2001-08-22 | 大庆油田有限责任公司采油工艺研究所 | Turning type disconnecting device |
| CN2455918Y (en) * | 2000-10-27 | 2001-10-24 | 符致桓 | Torque anchor for preventing oil pipe from being loosen |
| CN2711369Y (en) * | 2004-06-02 | 2005-07-20 | 张书明 | Flexible drill stem |
| CN202467695U (en) * | 2012-01-19 | 2012-10-03 | 河南易安能源科技有限公司 | Floating device and vehicle-mounted CBM (Coal Bed Methane) drilling machine using floating device |
| CN203321393U (en) * | 2013-06-21 | 2013-12-04 | 内蒙古龙旺地质勘探有限责任公司 | Medium-soft rock core extractor |
| CN204225784U (en) * | 2014-11-24 | 2015-03-25 | 连云港黄海机械股份有限公司 | A kind of rock-core borer output torque upper limit controls drilling rod |
-
2014
- 2014-11-24 CN CN201410678466.7A patent/CN104481418B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0439279A1 (en) * | 1990-01-24 | 1991-07-31 | Western Well Tool, Inc. | Drill pipe/casing protector |
| CN2444051Y (en) * | 2000-08-02 | 2001-08-22 | 大庆油田有限责任公司采油工艺研究所 | Turning type disconnecting device |
| CN2455918Y (en) * | 2000-10-27 | 2001-10-24 | 符致桓 | Torque anchor for preventing oil pipe from being loosen |
| CN2711369Y (en) * | 2004-06-02 | 2005-07-20 | 张书明 | Flexible drill stem |
| CN202467695U (en) * | 2012-01-19 | 2012-10-03 | 河南易安能源科技有限公司 | Floating device and vehicle-mounted CBM (Coal Bed Methane) drilling machine using floating device |
| CN203321393U (en) * | 2013-06-21 | 2013-12-04 | 内蒙古龙旺地质勘探有限责任公司 | Medium-soft rock core extractor |
| CN204225784U (en) * | 2014-11-24 | 2015-03-25 | 连云港黄海机械股份有限公司 | A kind of rock-core borer output torque upper limit controls drilling rod |
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| Publication number | Publication date |
|---|---|
| CN104481418A (en) | 2015-04-01 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160219 Address after: 222000 Jiangsu, Haizhou District, Haizhou Development Zone, the new East Road, No. 1 Applicant after: H.H. DRILL-TECH DRILLING MACHINERY CO., LTD. Address before: 222000 Jiangsu, Haizhou District, Haizhou Development Zone, the new East Road, No. 1 Applicant before: Lianyungang Huanghai Machinery Co., Ltd. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |