CN104481418A - Core drill output torque upper control limit drill rod - Google Patents
Core drill output torque upper control limit drill rod Download PDFInfo
- Publication number
- CN104481418A CN104481418A CN201410678466.7A CN201410678466A CN104481418A CN 104481418 A CN104481418 A CN 104481418A CN 201410678466 A CN201410678466 A CN 201410678466A CN 104481418 A CN104481418 A CN 104481418A
- Authority
- CN
- China
- Prior art keywords
- core pipe
- core
- output torque
- turnbarrel
- bearing
- 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
- 238000005553 drilling Methods 0.000 claims description 55
- 238000007789 sealing Methods 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract 4
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 2
- 208000034423 Delivery Diseases 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 239000002253 acid Substances 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
- 238000000034 method Methods 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
Disclosed is a core drill output torque upper control limit drill rod. The core drill output torque upper control limit drill rod comprises a core pipe, a joint is arranged on the upper portion of the core pipe, a rotating sleeve sleeves the middle of the core pipe, a torque transmission bar is disposed between the rotating sleeve and the core pipe, and a ring of circular arc groove which is used for disconnection when the core drill output torque is larger than the maximum bearing torque of a downhole drill rod is designed in the middle of the torque transmission bar. By means of the circular arc groove in the middle of the torque transmission bar, a torque transmission relation between a core drill active drill rod and the downhole drill rod is disconnected when the core drill output torque is larger than the maximum bearing torque of the downhole drill rod, the core drill active drill rod continues to rotate and the downhole drill rod stops rotating, and thereby, bearing torque overload protection of the downhole drill rod can be achieved. The core drill output torque upper control limit drill rod has the advantages that the weight is small, the structure is simple, assembly and disassembly are convenient, downhole drill rod breaking accidents caused by excessively large drill output torque can be effectively avoided, the construction costs are lowered, and the core drill output torque upper control limit drill rod is 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 rock-core borer output torque upper limit controls drilling rod.
Background technology
Along with country's " 12 " shallow covered areas engineering and the Rapid Implementation of geological prospecting " 358 " action plan and development, the future developments such as drilling project creeps into more deep formation, more complex layer creeps into, unknown or new discovery geologic province creeps into.The maturation development of 2000 meters of deep drilling process equipments is also widely used in geological prospecting construction, 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 equipment, and drilling rod plays vital effect as a kind of high cost consumption medium in engineer operation, because the increase of drilling equipment type, rig maximum output torque also increases thereupon, and this proposes acid test more just to shaft bottom drilling rod.Compared with the nominal maximum torque that can bear with traditional common drilling rod and rope coring drill pipe, particularly the max. output torque of more than 2000 meters types is beyond the nominal maximum torque that supporting shaft bottom drilling rod can bear, and therefore shaft bottom drilling rod easily fractures accident section; Sometimes unusual condition can be there is suddenly when rig normally works, as shaft bottom drill bit there is suddenly bit bouncing state time, the moment of torsion that shaft bottom drilling rod bears can increase suddenly the nominal maximum 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, proposes that a kind of structure is simple, lightweight, easy accessibility, can realize controlling drilling rod to the rock-core borer output torque upper limit 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 rock-core borer output torque upper limit controls drilling rod, comprise core pipe, the bottom outer wall of core pipe is provided with the external screw thread connecting the supporting drilling rod of rock-core borer, the joint be fixedly connected with rock-core borer kelly is provided with on the top of core pipe, be characterized in: have turnbarrel at the middle part overcoat of core pipe, torsion pass bar moment of torsion being passed to core pipe from turnbarrel is provided with between turnbarrel and core pipe, the axis of torsion pass bar is arranged with the axial vertical of core pipe, being provided with a circle at the middle part of torsion pass bar when rock-core borer output torque is greater than the arc groove disconnected when shaft bottom drilling rod is maximum bears moment of torsion, one end of described torsion pass bar is fixedly connected by interior otic placode and core pipe, the other end end of torsion pass bar is fixedly connected by outer otic placode and turnbarrel, a circle boss is outwards provided with near the end, one end of turnbarrel at torsion pass bar, outside otic placode be provided with coordinate with torsion pass bar boss one enclose projection, the Compress Spring be sleeved on torsion pass bar is provided with outside between otic placode projection and torsion pass bar boss, between the below core pipe and turnbarrel of torsion pass bar, be provided with lower bearing group, between the below core pipe and turnbarrel of lower bearing group, be provided with lower sealing device, upper bearing (metal) group is provided with between core pipe and turnbarrel above torsion pass bar, the bearing be sleeved on core pipe is provided with above upper bearing (metal) group, upper sealing device is provided with between bearing and core pipe, the bottom of described bearing and the top of turnbarrel are fixedly connected by screw thread, the butt plate lifted by bolt and joint is provided with on the top of bearing, the installing hole of degree of tightness and bolt attaching nut is had at the middle part of bearing, between bearing butt plate and joint, be also provided with the sealing be sleeved on core pipe regulate pressing plate, sealing adjustment pressing plate is provided with the passing hole that above-mentioned bolt passes through, be provided with the V-type be sleeved on core pipe between described sealing adjustment pressing plate and joint and press from both sides fabric rubber seal.
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, and upper core pipe is set with the locknut of locking.
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 the locating slot that some and interior otic placode coordinates, at the circumferential locating hole being evenly distributed with some and outer otic placode and coordinating of the outer wall of turnbarrel.
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, locating 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, interior otic placode is provided with the endoporus installing torsion pass bar, internal control is provided with female end friction tight with torsion pass bar.
Compared with prior art, the present invention when rock-core borer output torque be less than shaft bottom drilling rod can bear peak torque, utilize the torsion pass bar be arranged between turnbarrel and core pipe, make turnbarrel, bearing together with core pipe along with rock-core borer kelly rotates; When rock-core borer output torque be greater than shaft bottom drilling rod can bear peak torque; utilize the arc groove be arranged in the middle part of torsion pass bar; the torsion pass relation of rock-core borer kelly and shaft bottom drilling rod is interrupted; realize that rock-core borer kelly continues to rotate, shaft bottom drilling rod stops operating, thus realize the bearing torque overload protection to shaft bottom drilling rod.The present invention is lightweight, structure is simple, easy accessibility, and the shaft bottom breaking of rod accident can 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 structural representation of the present invention;
Fig. 2 is the structural representation of torsion pass bar;
Fig. 3 is the perspective view of bearing.
Detailed description of the invention
A kind of rock-core borer output torque upper limit controls drilling rod, comprise core pipe, the bottom outer wall of core pipe is provided with the external screw thread connecting the supporting drilling rod of rock-core borer, the joint 10 be fixedly connected with rock-core borer kelly is provided with on the top of core pipe, turnbarrel 2 is had at the middle part overcoat of core pipe, the torsion pass bar 5 moment of torsion being passed to core pipe from turnbarrel is provided with between turnbarrel 2 and core pipe, the axis of torsion pass bar is arranged with the axial vertical of core pipe, being provided with a circle at the middle part of torsion pass bar 5 when rock-core borer output torque is greater than the arc groove 20 disconnected when shaft bottom drilling rod is maximum bears moment of torsion, one end of described torsion pass bar is fixedly connected with core pipe by interior otic placode 6, the other end end of torsion pass bar is fixedly connected with turnbarrel by outer otic placode 3, a circle boss 19 is outwards provided with near the end, one end of turnbarrel at torsion pass bar, outside otic placode 3 be provided with coordinate with torsion pass bar boss one enclose projection, the Compress Spring 4 be sleeved on torsion pass bar is provided with outside between otic placode projection and torsion pass bar boss, between the below core pipe and turnbarrel of torsion pass bar, be provided with lower bearing group, between the below core pipe and turnbarrel of lower bearing group, be provided with lower sealing device 18, upper bearing (metal) group is provided with between core pipe and turnbarrel 2 above torsion pass bar 5, the bearing 7 be sleeved on core pipe is provided with above upper bearing (metal) group, upper sealing device 14 is provided with between bearing 7 and core pipe, the bottom of described bearing and the top of turnbarrel are fixedly connected by screw thread, the butt plate 21 lifted by bolt and joint is provided with on the top of bearing 7, the installing hole 13 of degree of tightness and bolt attaching nut is had at the middle part of bearing, between bearing butt plate and joint, be also provided with the sealing be sleeved on core pipe regulate pressing plate 12, sealing adjustment pressing plate 12 is provided with the passing hole that above-mentioned bolt passes through, be provided with the V-type be sleeved on core pipe between described sealing adjustment pressing plate and joint and press from both sides fabric rubber seal 11.Described upper and lower bearing group is equipped with a deep groove ball bearing 15 and a thrust ball bearing 16.Like this, the spinfunction of mutual radial location between turnbarrel and core pipe is achieved.Turnbarrel is also provided with the press-fit forced filling oil 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 external surface, while realization is on flushing liquor sealing function, can ensure again not affect relatively rotating of core pipe 9 and bearing 7.When the moment of torsion that rig exports is less than the nominal maximum 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 nominal maximum torque that shaft bottom drilling rod can bear, upper core pipe keeps relatively rotating together with lower core pipe and bearing, and flushing liquor 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, and upper core pipe 9 is set with the locknut 8 of locking; On the outer wall of core pipe, circumference is evenly distributed with the locating slot that some and interior otic placode coordinates, at the circumferential locating hole being evenly distributed with some and outer otic placode and coordinating of the outer wall of turnbarrel; Described locating slot, locating hole are equipped with 3; Interior otic placode 6 is provided with the endoporus installing torsion pass bar, internal control is provided with female end friction tight with torsion pass bar.Described drilling rod is installed at below rock-core borer kelly and between the drilling rod of shaft bottom; can control the upper limit of rock-core borer output torque, the shaft bottom drilling rod avoiding shaft bottom drilling rod to cause due to output torque excessive (exceeding the nominal maximum torque that shaft bottom drilling rod can bear) during normal or abnormality because rock-core borer is in fractures accident.When output torque is excessive, torsion pass bar 5 disconnects at arc groove 20 place, and the torsion pass relation of kelly and shaft bottom drilling rod is interrupted, and realize kelly and continue to rotate, shaft bottom drilling rod stops operating, thus realizes the bearing torque overload protection to shaft bottom drilling rod.
When rig output torque is less than the nominal maximum torque that shaft bottom drilling rod can bear, turnbarrel 2 and core pipe together rotate with kelly under the effect of torsion pass bar 5, pressurization is when creeping into, and rig is applied to that the downward the pressure of the drill power of kelly 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 kelly and rig by core pipe, turnbarrel 2, bearing 7 successively from gravity.When rig output torque is greater than the nominal maximum torque that shaft bottom drilling rod can bear, torsion pass bar disconnects, turnbarrel 2 and lower core pipe 1 torsion pass relation are interrupted, turnbarrel 2 continues to rotate under the drive of kelly, lower core pipe 1 and shaft bottom drilling rod stop the rotation, and identical with when normally creeping into by slide force situation everywhere.When rig output torque is less than the nominal maximum torque that shaft bottom drilling rod can bear, torsion pass bar normal delivery moment of torsion, turnbarrel 2 and lower core pipe 1 are linked together, 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 arc groove place becomes two sections; one section of torsion pass bar is continued to stay in the female end of interior otic placode; another section outwards moves a segment distance to outer otic placode place under the effect of Compress Spring; turnbarrel and lower core pipe are thrown off herein; turnbarrel continues rotary motion with kelly, and lower core pipe and shaft bottom drilling rod then stop the rotation, and so just achieves the bearing torque overload protection to shaft bottom drilling rod.
Claims (5)
1. a rock-core borer output torque upper limit controls drilling rod, comprise core pipe, the bottom outer wall of core pipe is provided with the external screw thread connecting the supporting drilling rod of rock-core borer, the joint be fixedly connected with rock-core borer kelly is provided with on the top of core pipe, it is characterized in that: have turnbarrel at the middle part overcoat of core pipe, torsion pass bar moment of torsion being passed to core pipe from turnbarrel is provided with between turnbarrel and core pipe, the axis of torsion pass bar is arranged with the axial vertical of core pipe, being provided with a circle at the middle part of torsion pass bar when rock-core borer output torque is greater than the arc groove disconnected when shaft bottom drilling rod is maximum bears moment of torsion, one end of described torsion pass bar is fixedly connected by interior otic placode and core pipe, the other end end of torsion pass bar is fixedly connected by outer otic placode and turnbarrel, a circle boss is outwards provided with near the end, one end of turnbarrel at torsion pass bar, outside otic placode be provided with coordinate with torsion pass bar boss one enclose projection, the Compress Spring be sleeved on torsion pass bar is provided with outside between otic placode projection and torsion pass bar boss, between the below core pipe and turnbarrel of torsion pass bar, be provided with lower bearing group, between the below core pipe and turnbarrel of lower bearing group, be provided with lower sealing device, upper bearing (metal) group is provided with between core pipe and turnbarrel above torsion pass bar, the bearing be sleeved on core pipe is provided with above upper bearing (metal) group, upper sealing device is provided with between bearing and core pipe, the bottom of described bearing and the top of turnbarrel are fixedly connected by screw thread, the butt plate lifted by bolt and joint is provided with on the top of bearing, the installing hole of degree of tightness and bolt attaching nut is had at the middle part of bearing, between bearing butt plate and joint, be also provided with the sealing be sleeved on core pipe regulate pressing plate, sealing adjustment pressing plate is provided with the passing hole that above-mentioned bolt passes through, be provided with the V-type be sleeved on core pipe between described sealing adjustment pressing plate and joint and press from both sides fabric rubber seal.
2. the rock-core borer output torque upper limit according to claim 1 controls drilling rod, and it is characterized in that: described core pipe comprises core pipe and lower core pipe, the lower end of upper core pipe connects with the threaded upper ends of lower core pipe, and upper core pipe is set with the locknut of locking.
3. the rock-core borer output torque upper limit according to claim 1 controls drilling rod, it is characterized in that: on the outer wall of core pipe, circumference is evenly distributed with the locating slot that some and interior otic placode coordinates, at the circumferential locating hole being evenly distributed with some and outer otic placode and coordinating of the outer wall of turnbarrel.
4. the rock-core borer output torque upper limit according to claim 3 controls drilling rod, it is characterized in that: described locating slot, locating hole are equipped with 3.
5. the rock-core borer output torque upper limit according to claim 1 controls drilling rod, it is characterized in that: on interior otic placode, be provided with the endoporus installing torsion pass bar, internal control is provided with female end friction tight with torsion pass bar.
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 true CN104481418A (en) | 2015-04-01 |
| CN104481418B CN104481418B (en) | 2016-06-01 |
Family
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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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104481418B (en) | 2016-06-01 |
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| PB01 | Publication | ||
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| 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 | ||
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