CN106593297A - Straight hole drilling method for drilling machine - Google Patents

Straight hole drilling method for drilling machine Download PDF

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Publication number
CN106593297A
CN106593297A CN201611162632.3A CN201611162632A CN106593297A CN 106593297 A CN106593297 A CN 106593297A CN 201611162632 A CN201611162632 A CN 201611162632A CN 106593297 A CN106593297 A CN 106593297A
Authority
CN
China
Prior art keywords
drilling
rod
drill
rig
straight hole
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.)
Pending
Application number
CN201611162632.3A
Other languages
Chinese (zh)
Inventor
林柏泉
杨威
胡欣然
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China University of Mining and Technology CUMT
Original Assignee
China University of Mining and Technology CUMT
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China University of Mining and Technology CUMT filed Critical China University of Mining and Technology CUMT
Priority to CN201611162632.3A priority Critical patent/CN106593297A/en
Publication of CN106593297A publication Critical patent/CN106593297A/en
Priority to PCT/CN2017/089970 priority patent/WO2018107712A1/en
Pending legal-status Critical Current

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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
    • E21B7/00—Special methods or apparatus for drilling
    • 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
    • E21B17/042—Threaded

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

The invention provides a straight hole drilling method for a drilling machine, and the straight hole drilling method for the drilling machine is suitable for drilling a gas drainage borehole in an underground coal mine. A drill bit is arranged on a section of round drill rod to start hole drilling operation, after a borehole is drilled by the depth of one section of drill rod, a section of threaded drill rod of which the outer diameter is the same as that of the drill bit is connected with the drill bit, drilling continues to be conducted, a common round drill rod is connected after the threaded drill rod enters the borehole, and drilling is conducted according to a general method till the drill bit reaches the designated position. The straight hole drilling method has the advantages that the drilling trace is straight, operation is simple, and slagging is effective; the problem that the borehole deviates the preset trace due to the fact that the drill bit is unevenly stressed can be effectively solved; and meanwhile, the threaded drill rod is convenient to buy, the cost is low, and the drilling cost is low.

Description

A kind of rig drill straight hole drilling method
Technical field
The present invention relates to a kind of rig drill straight hole drilling method, is particularly suited for the long range brill in the uneven area of country rock soft or hard Enter the rig drill straight hole drilling method for using.
Background technology
Extraction is the fundamental way for solving the problems, such as coal mine gas, and the position of extraction borehole has very big shadow to gas pumping efficiency Ring, the extracting result of China's coal-mine mash gas pumping drilling is very poor, reacted drilling physical location is big with design attitude deviation and asked Topic.The major way for creeping at this stage is single type rod boring, and drilling rod is mainly circle, between the method drilling rod and the wall of a borehole There is certain interval, when distance is crept into, because bit force is uneven, drilling rod starts to bent deviation drilling axis direction, Drilling is difficult to reach specified location.
The content of the invention
Technical problem：The purpose of the present invention is to overcome the weak point in prior art, there is provided it is a kind of low cost, can have Effect prevents the drilling method of drilling rod skew in drilling process.
Technical scheme：The rig drill straight hole drilling method of the present invention, comprises the steps：
Rig drill straight hole drilling method, is crept into using drill bit and drilling rod, and the drilling rod includes round drill rod and screw thread Drilling rod, comprises the steps：
A, selection one save round drill rod as first segment drilling rod, drill bit are installed on first segment boring bar head, in first segment Drilling rod afterbody is connected by connector with rig, and starts drilling；
B, when first segment drilling rod pierces drilling with drilling, stop drilling, by rig and first segment drilling rod portion from, Threaded drillpipe is saved by connector connection one and is used as second section drilling rod, continue to creep into after rig is connected with threaded drillpipe；
C, when threaded drillpipe pierces drilling with drilling, stop drilling, rig is separated with threaded drillpipe, using connection Part continues to connect a section round drill rod, continues to creep into；
D, continue to creep into drilling according to conventional drilling method, extend drilling rod using connector and round drill rod until reaching brill Hole drill enters specified location, completes drilling.
Threaded drillpipe is identical with drilling rod internal diameter with typical circular drilling rod, and by internal thread or two ends the company of connection screw thread is provided with Fitting connection fastening.Threaded drillpipe external diameter is identical with drill bit, and the two external diameter is bigger than round drill rod.Described threaded drillpipe is by empty circle Post adds outside screw thread to constitute, and is made up of high strength steel, and bending strength is high, effectively prevents bit force from bending when uneven. Screw thread on the threaded drillpipe is regular screw threads bar screw thread or king bolt screw thread, and the ridge of the king bolt screw thread is highly For 10mm-30mm, when the crisp stability that can effectively improve drilling of drilling crag structure.
Beneficial effect：The present invention saves threaded bore by the connection one between first segment round drill rod and follow-up round drill rod Bar, is effectively prevented the skew of drilling rod in drilling process, and drilling off-design position.When starting drilling, brill is determined Enter angle to start to drill, drill bit enters country rock (coal body), drilling rod also into country rock (coal body), when this two sections drilling rod enters country rock (coal body) afterwards boring direction determines.Because second section drilling rod is threaded drillpipe, its external diameter is identical with drill bit, thus drill hole inner wall and Gap very little between it, effectively limits the swing with first-half drilling rod.When drill bit is subject to uneven power, drilling rod oriented can be received The tendency of the little direction deflection of power, at this moment due to drilling rod and the wall of a borehole gap very little, drilling wall energy effectively gives drilling rod reaction Power, causes drilling rod to swing and offset, it is therefore prevented that drill bit drilling direction shifts.Additionally, when drilling distance is very long, by Large number of in drilling rod, drilling rod shakes unavoidably skew, and now first-half drilling rod is constrained by the wall of a borehole and cannot swung, firmly It is determined that the direction of drill bit drilling, the swing of drilling rod below cannot affect drilling direction.Simultaneously, a large amount of drilling cuttings can be from brill Head place discharges, and first segment drilling rod adopts typical circular drilling rod, and the resistance of itself big drilling cuttings in gap and between the wall of a borehole is little, drilling cuttings arrival the During two section drilling rods, the flow of drilling cuttings is greatly reduced, and now the screw thread of threaded drillpipe can effective deslagging.If all adopting spiral shell Line drilling rod, its drilling resistance can be very big, only second section drilling rod adopts threaded drillpipe, effective control drilling resistance.
Description of the drawings
Fig. 1 is the rod bit connection diagram of the present invention；
In figure：1- drilling country rocks, 2- drilling rods, 3- threaded drillpipes, 4- drillings, 5- round drill rods, 6- drill bits.
Specific embodiment
One embodiment of the present of invention is further described below in conjunction with the accompanying drawings：
As shown in figure 1, the rig drill straight hole drilling method of the present invention, is crept into, the brill using drill bit 6 and drilling rod 2 Bar 2 includes round drill rod 5 and threaded drillpipe 3, and threaded drillpipe 3 is identical with the internal diameter of drilling rod 5 with typical circular drilling rod 2, by interior spiral shell Line or two ends are provided with the connector connection fastening of connection screw thread, and the external diameter of threaded drillpipe 3 is identical with drill bit 6, and the two external diameter is than circular Drilling rod 5 is big.
Described threaded drillpipe 3 is added outside screw thread to constitute by hollow round column, is made up of high strength steel, and bending strength is high, has Effect prevents bit force from bending when uneven.Screw thread on the threaded drillpipe 3 is regular screw threads bar screw thread or king bolt Screw thread, the ridge of the king bolt screw thread is highly 10mm-30mm, and when creeping into, crag structure is crisp can to effectively improve drilling Stability.
Comprise the steps：
A, selection one save round drill rod 5 as first segment drilling rod, drill bit 6 are installed on first segment boring bar head, first Section drilling rod afterbody is connected by connector with rig, and starts drilling；
B, when first segment drilling rod pierces drilling 4 with drilling, stop drilling, by rig and first segment drilling rod portion From, threaded drillpipe 3 is saved by connector connection one and is used as second section drilling rod, continue to creep into after rig is connected with threaded drillpipe 3；
C, when threaded drillpipe 3 with drilling pierce drilling 4 when, stop drilling, rig is separated with threaded drillpipe 3, utilization Connector continues to connect a section round drill rod 2, continues to creep into；
D, continue to creep into drilling 4 according to conventional drilling method, extend drilling rod using connector and round drill rod 5 until reaching Drilling drilling completes drilling to specified location.

Claims (5)

1. a kind of rig drill straight hole drilling method, using drill bit（6）And drilling rod（2）Crept into, the drilling rod（2）Including circle Drilling rod（5）And threaded drillpipe（3）, it is characterised in that comprise the steps：
A, selection one save round drill rod（5）As first segment drilling rod, drill bit is installed on first segment boring bar head（6）, first Section drilling rod afterbody is connected by connector with rig, and starts drilling；
B, when first segment drilling rod as drilling pierces drilling（4）When, stop drilling, by rig and first segment drilling rod portion from, Threaded drillpipe is saved by connector connection one（3）As second section drilling rod, by rig and threaded drillpipe（3）Continue to bore after connection Enter；
C, work as threaded drillpipe（3）As drilling pierces drilling（4）When, stop drilling, by rig and threaded drillpipe（3）Separate, profit Continued to connect a section round drill rod with connector（2）, continue to creep into；
D, according to conventional drilling method continue creep into drilling（4）, using connector and round drill rod（5）Extend drilling rod until reaching Drilling drilling completes drilling to specified location.
2. rig drill straight hole drilling method according to claim 1, it is characterised in that：Threaded drillpipe（3）And typical circular Drilling rod（2）And drilling rod（5）Internal diameter is identical, and by internal thread or two ends the connector connection fastening of connection screw thread is provided with.
3. rig drill straight hole drilling method according to claim 1, it is characterised in that：Threaded drillpipe（3）External diameter and drill bit （6）Identical, the two external diameter compares round drill rod（5）Greatly.
4. rig drill straight hole drilling method according to claim 1, it is characterised in that：Described threaded drillpipe（3）By sky Cylinder adds outside screw thread to constitute, and is made up of high strength steel, and bending strength is high, effectively prevents bit force from occurring when uneven curved It is bent.
5. rig drill straight hole drilling method according to claim 1, it is characterised in that：The threaded drillpipe（3）On spiral shell Line is regular screw threads bar screw thread or king bolt screw thread, and the ridge of the king bolt screw thread is highly 10mm-30mm, works as drilling Crag structure is crisp can to effectively improve the stability of drilling.
CN201611162632.3A 2016-12-15 2016-12-15 Straight hole drilling method for drilling machine Pending CN106593297A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201611162632.3A CN106593297A (en) 2016-12-15 2016-12-15 Straight hole drilling method for drilling machine
PCT/CN2017/089970 WO2018107712A1 (en) 2016-12-15 2017-06-26 Straight hole drilling method for drilling machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611162632.3A CN106593297A (en) 2016-12-15 2016-12-15 Straight hole drilling method for drilling machine

Publications (1)

Publication Number Publication Date
CN106593297A true CN106593297A (en) 2017-04-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (2)

Country Link
CN (1) CN106593297A (en)
WO (1) WO2018107712A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107178310A (en) * 2017-06-05 2017-09-19 柳州市怀才商贸有限公司 A kind of magnetic tracks rig
CN107386250A (en) * 2017-06-30 2017-11-24 上海建工集团股份有限公司 For reconnoitring the device and method of engineering geology
WO2018107712A1 (en) * 2016-12-15 2018-06-21 中国矿业大学 Straight hole drilling method for drilling machine
CN109184590A (en) * 2018-11-19 2019-01-11 河南理工大学 A kind of deep well drilling method and device
CN114033326A (en) * 2021-11-02 2022-02-11 中国矿业大学 Push rod mounting and dismounting device and method for ground stress test
CN115263208A (en) * 2022-08-23 2022-11-01 华亭煤业集团有限责任公司 Device for accurately collecting drilling cuttings at drilling position and drilling cuttings collecting method

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Publication number Priority date Publication date Assignee Title
CN109472101B (en) * 2018-11-21 2022-10-04 河南理工大学 Fluid slag-discharging drilling method for deep well soft coal rock
CN113153148B (en) * 2021-04-07 2023-09-22 河南理工大学 Blowout-preventing drill cutting and punching tool for outburst coal seam penetrating drilling
CN113720938A (en) * 2021-08-31 2021-11-30 西安科技大学 Device and method for analyzing gas composition change in coal drilling process
CN117759159B (en) * 2024-01-05 2024-07-02 中煤科工集团重庆研究院有限公司 Complicated roof major diameter drilling fracturing gas drainage device

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CN2034613U (en) * 1988-02-06 1989-03-22 中南工业大学 Guiding steady rod installation of drilling rod
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CN201778684U (en) * 2010-09-19 2011-03-30 刘岩 Multiple-effect strip-shaped diamond stabilizer
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CN104343383A (en) * 2014-10-08 2015-02-11 陕西师范大学 Drilling device for earthen archaeological site
CN204476327U (en) * 2015-01-27 2015-07-15 长沙矿山研究院有限责任公司 With the drilling tool of core barrel
CN205036395U (en) * 2015-09-18 2016-02-17 洛阳中岩工程材料有限公司 Anchor anchor drilling is with direction device placed in middle

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CN102828691A (en) * 2012-08-01 2012-12-19 中国石油天然气集团公司 Packed hole deviation control and near-drill-bit decompression compound way-type drilling unit
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Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2034613U (en) * 1988-02-06 1989-03-22 中南工业大学 Guiding steady rod installation of drilling rod
CN2121597U (en) * 1990-05-31 1992-11-11 河南省许昌市水利科学研究所 Pipe laying machine by drilling
US6196598B1 (en) * 1997-01-06 2001-03-06 Boart Longyear, Inc. Straight hole drilling system
CN201778684U (en) * 2010-09-19 2011-03-30 刘岩 Multiple-effect strip-shaped diamond stabilizer
CN102418477A (en) * 2011-12-05 2012-04-18 山东新矿赵官能源有限责任公司 Drill rod linear driller for mine gas drainage under suction and operation method of drill rod linear driller
CN104343383A (en) * 2014-10-08 2015-02-11 陕西师范大学 Drilling device for earthen archaeological site
CN204476327U (en) * 2015-01-27 2015-07-15 长沙矿山研究院有限责任公司 With the drilling tool of core barrel
CN205036395U (en) * 2015-09-18 2016-02-17 洛阳中岩工程材料有限公司 Anchor anchor drilling is with direction device placed in middle

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018107712A1 (en) * 2016-12-15 2018-06-21 中国矿业大学 Straight hole drilling method for drilling machine
CN107178310A (en) * 2017-06-05 2017-09-19 柳州市怀才商贸有限公司 A kind of magnetic tracks rig
CN107386250A (en) * 2017-06-30 2017-11-24 上海建工集团股份有限公司 For reconnoitring the device and method of engineering geology
CN107386250B (en) * 2017-06-30 2023-04-07 上海建工集团股份有限公司 Device and method for surveying engineering geology
CN109184590A (en) * 2018-11-19 2019-01-11 河南理工大学 A kind of deep well drilling method and device
CN114033326A (en) * 2021-11-02 2022-02-11 中国矿业大学 Push rod mounting and dismounting device and method for ground stress test
CN114033326B (en) * 2021-11-02 2023-10-31 中国矿业大学 Push rod mounting and dismounting device and method for ground stress test
CN115263208A (en) * 2022-08-23 2022-11-01 华亭煤业集团有限责任公司 Device for accurately collecting drilling cuttings at drilling position and drilling cuttings collecting method
CN115263208B (en) * 2022-08-23 2024-03-19 华亭煤业集团有限责任公司 Device and method for accurately collecting drilling cuttings in drilling position

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Application publication date: 20170426