CN104948108A - Hole drilling and poking technology of kilometer drilling machine for coal seam gas hole drilling - Google Patents

Hole drilling and poking technology of kilometer drilling machine for coal seam gas hole drilling Download PDF

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Publication number
CN104948108A
CN104948108A CN 201510286620 CN201510286620A CN104948108A CN 104948108 A CN104948108 A CN 104948108A CN 201510286620 CN201510286620 CN 201510286620 CN 201510286620 A CN201510286620 A CN 201510286620A CN 104948108 A CN104948108 A CN 104948108A
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Prior art keywords
hole
drilling
kilometer
poking
technology
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CN 201510286620
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Chinese (zh)
Inventor
崔涛
牛蕴
王冰
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山西晋城无烟煤矿业集团有限责任公司
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Abstract

The invention relates to the coal seam gas drainage technology, in particular to a hole drilling and poking technology of a kilometer drilling machine for coal seam gas hole drilling, and solves the problems that completed drilled holes of the kilometer drilling machine are blocked in a later period, holes cannot be effectively poked due to complex and multiple branches in the holes, and the gas drainage effect is lowered. The technology comprises the steps that 1 normal hole drilling is conducted, the drift angle of a downhole motor used in the hole drilling is 1.25 degrees, and a main hole (2) and branch holes (1) are formed by the hole drilling; 2 after a collapsed hole (3) is formed in the main hole (2), the kilometer drilling machine is used continuously to carry out hole poking operations; 3 hole poking is conducted, the kilometer drilling machine is used continuously, a downhole motor with the drift angle of 1.75 degrees is used and sent to the branches of the main hole (2) and the branch holes (3), the downhole motor can enter the main hole (2) successfully by using remote control, and punching and construction are carried out on the position of the collapsed hole until the position of the collapsed hole is through completely. According to the technology, the dredge problem of the collapsed hole in the kilometer drilling machine can be successfully solved, the long drilled holes are maintained in an unblocked mode, the coal wall of an original hole drilling channel is not damaged, secondary damage caused by hole poking is avoided, used tools are simple in improvement, the effect is good, the cost is low, and the gas drainage effect is ideal.

Description

煤层瓦斯钻孔千米钻机钻孔通孔工艺 One thousand meters of coal seam gas drilling rig drilling through-hole technology

技术领域 FIELD

[0001] 本发明涉及煤层瓦斯抽放技术,具体为一种煤层瓦斯钻孔千米钻机钻孔通孔工 [0001] The present invention relates to Coal Gas drainage technology, particularly through-hole drilling work drilling rig one thousand meters as a coal gas

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背景技术 Background technique

[0002] VLD —1000型钻机现煤矿主要钻探设备之一,用于施工长距离钻孔,具有定位性、钻孔深度长、单孔瓦斯浓度及抽放量高等特点。 [0002] VLD -1000 drilling rig equipment is now one of the main coal, long distance for a construction drilling, having fixability, long drilling depth, gas concentration and hole drainage volume characteristics. 千米钻机施工形成的钻孔轨迹如图1所示意,在钻孔竣工后的后期维护中,常出现孔内某些地段煤层塌孔造成钻孔瓦斯无法有效抽放的情况。 A trajectory of one thousand meters drilling rig construction schematic form is shown, in later maintenance after the completion of drilling, the bore hole collapse some sections of the coal seam gas drilling situation often occurs cause can not be effectively drained. 这种情况下就需要对钻孔进行疏通,使其恢复透气功能。 It is clear the need to drill holes in this case, to restore ventilation function. 目前都是使用原来的钻机和钻头,深入到孔内达到塌孔部位后再打钻孔使其畅通。 We are currently using the original rig and drill deep into the pores, collapse hole drilling site after the fight it open. 但是在实际施工中发现,在组织捅孔过程中,孔内分支多且复杂,使用原来的钻头和钻杆在分支处经常无法顺利进入主要分支内,无法精确控制走向,导致捅孔不彻底,不能有效提高钻孔瓦斯抽放效果。 But in actual construction it found that poke holes in the process of organization, the branch bore many and complex, using the original drill bit and drill pipe at the branch office often can not enter smoothly in the main branch, can not accurately control the trend, leading to poke holes is not complete, can not effectively improve the drilling gas drainage effect. 为此,技术人员进行了深入研宄,发现钻头的结构是导致控制不力的重要原因。 To this end, the technical staff conducted in-depth study based, found that the structure of the drill is an important cause of poor control.

发明内容 SUMMARY

[0003] 本发明为了解决解决千米钻机施工的已竣工钻孔后期堵孔,因孔内分支多且复杂造成无法有效捅孔,导致降低瓦斯抽放效果的问题。 [0003] In order to solve solve one thousand meters drilling rig construction has been completed late plugging holes, because holes are many and complex causes branch can not effectively poke holes, resulting in reduced effect of gas drainage problems. 提供了一种煤层瓦斯钻孔千米钻机钻孔通孔工艺。 It provides a one thousand meters of coal seam gas drilling rig drilling through-hole technology.

[0004] 本发明的技术方案是,一种煤层瓦斯钻孔千米钻机钻孔通孔工艺,步骤为 [0004] aspect of the present invention is a coal seam gas drilling rig drilling one thousand meters through hole process, the steps of

(1)正常钻孔,钻孔使用的孔底马达的偏角为1.25。 (1) normal drilling, the drilling motor angle using the hole bottom is 1.25. ,钻孔形成主孔2和支孔1, , Formed by drilling a main bore and the branch aperture 2 1,

(2)主孔2出现塌孔3后,继续用千米钻机进行通孔操作, (2) 2 main bore hole collapse occurred after 3, operation proceeds through hole drill in kilometers,

(3)通孔,还使用千米钻机,使用1.75°偏角的孔底马达,送入到主孔和之孔的分支处后,该孔底马达可以在远程控制下顺利进入主孔2中,并且对塌孔位置进行打孔施工,直至塌孔处完全贯通。 (3) the through-hole, drill used one thousand meters, angle of 1.75 ° using downhole motor, is fed back to the branch office and the main bore hole, the bottom of the hole can smoothly enter the motor 2 in the main bore in the remote control and the construction of hole collapse puncturing position, until the collapse completely through the hole.

[0005] 申请人如果用旧的1.25。 [0005] Applicants with the old 1.25. 偏角孔底马达,弯度小,在原有钻孔的某些分支处,在不破坏孔壁的情况下,该马达无法探住主孔壁,因此无法人为操作控制马达走向,最后始终进入分支孔内,无法对主孔实施有效通孔。 Angle downhole motor, the small bend, in certain branches of the original drilling, without destruction of the cell walls, the motor can not live probe main bore wall, can not control the motor to manual operation, and finally into the branch aperture always the, can not be effective for the through hole main bore. 而用了1.75°孔底马达,就可以探住主孔的孔壁,这样孔底马达就可以顺利进入主孔内,然后用高压水直接冲洗主孔即可完成清理。 1.75 ° and with the downhole motor, can live probe main bore hole wall, so that downhole motor can smoothly enter the main bore, the main bore and then directly rinsed with high pressure water to complete the cleaning.

[0006] 本发明所述的工艺,可以顺利解决千米钻孔内塌孔后疏通的问题,保持长钻孔的畅通,不破坏原有的钻孔孔道煤壁,避免因通孔早曾的二次破坏,使用工具改造简单,效果好,成本低,瓦斯抽放效果理想。 [0006] The process of the present invention, can fix the problem within the bore hole collapse after one thousand meters of clear, smooth holding long borehole, the borehole without damaging the original coal tunnel wall, to avoid the through hole had the early secondary damage, using a simple transformation tool, effective, low cost, gas drainage results are satisfactory.

附图说明 BRIEF DESCRIPTION

[0007] 图1为钻孔位置示意图图2为本发明使用的1.75°孔底马达结构图图3现有的1.25°孔底马达结构图。 [0007] FIG. 1 is 1.75 ° using a bottom hole configuration diagram of the motor of FIG. 3 prior 1.25 ° downhole motor drilling position a schematic configuration diagram of FIG. 2 of the present invention.

具体实施方式 detailed description

[0008] 一种煤层瓦斯钻孔千米钻机钻孔通孔工艺,步骤为:如图1所示意, [0008] A one thousand meters seam gas drilling rig drilling a through hole process, the steps of: schematically in FIG. 1,

(1)正常钻孔,钻孔使用的孔底马达的偏角为1.25。 (1) normal drilling, the drilling motor angle using the hole bottom is 1.25. ,钻孔形成主孔2和支孔1, , Formed by drilling a main bore and the branch aperture 2 1,

(2)主孔2出现塌孔3后,继续用千米钻机进行通孔操作, (2) 2 main bore hole collapse occurred after 3, operation proceeds through hole drill in kilometers,

(3)通孔,还使用千米钻机,使用1.75°偏角的孔底马达,送入到主孔和之孔的分支处后,该孔底马达可以在远程控制下顺利进入主孔2中,并且对塌孔位置进行打孔施工,直至塌孔处完全贯通。 (3) the through-hole, drill used one thousand meters, angle of 1.75 ° using downhole motor, is fed back to the branch office and the main bore hole, the bottom of the hole can smoothly enter the motor 2 in the main bore in the remote control and the construction of hole collapse puncturing position, until the collapse completely through the hole.

Claims (1)

  1. 1.一种煤层瓦斯钻孔千米钻机钻孔通孔工艺,其特征是步骤为: (I)正常钻孔,钻孔使用的孔底马达的偏角为1.25°,钻孔形成主孔(2)和支孔(1), (2 )主孔(2 )出现塌孔(3 )后,继续用千米钻机进行通孔操作, (3)通孔,还使用千米钻机,换使用1.75°偏角的孔底马达,送入到主孔和之孔的分支处后,该孔底马达可以在远程控制下顺利进入主孔(2)中,并且对塌孔位置进行打孔施工,直至塌孔处完全贯通。 A one thousand meters seam gas drilling rig drilling a through hole process, wherein the step of: angle (I) normal drilling, a bottom hole drilling motor used is 1.25 °, forming a main bore hole ( after 2) and the branch bore (1), (2) the main bore (2) collapse occurs hole (3), the operation proceeds through hole drill in kilometers, (3) the through-hole, drill used one thousand meters, for using 1.75 the downhole motor ° angle, is fed back to the branch office and the main bore hole, the bottom of the hole can smoothly enter the motor under remote control of the main bore (2), and the collapse of the construction hole punching position until collapse completely through the hole.
CN 201510286620 2015-05-30 2015-05-30 Hole drilling and poking technology of kilometer drilling machine for coal seam gas hole drilling CN104948108A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2441671A1 (en) * 1998-11-20 2000-06-02 Cdx Gas, Llc Method and system for accessing subterranean deposits from the surface
CN102061933A (en) * 2010-12-13 2011-05-18 山西晋城无烟煤矿业集团有限责任公司 Long drilling positioning construction process
CN102704883A (en) * 2012-05-06 2012-10-03 山西晋城无烟煤矿业集团有限责任公司 Special fishing device for downhole motor rotor of kilometer-level drilling machine
CN103032025A (en) * 2013-01-18 2013-04-10 中煤科工集团西安研究院 Underground coal mine multipurpose overall crawler type full-hydraulic directional drilling machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2441671A1 (en) * 1998-11-20 2000-06-02 Cdx Gas, Llc Method and system for accessing subterranean deposits from the surface
CN102061933A (en) * 2010-12-13 2011-05-18 山西晋城无烟煤矿业集团有限责任公司 Long drilling positioning construction process
CN102704883A (en) * 2012-05-06 2012-10-03 山西晋城无烟煤矿业集团有限责任公司 Special fishing device for downhole motor rotor of kilometer-level drilling machine
CN103032025A (en) * 2013-01-18 2013-04-10 中煤科工集团西安研究院 Underground coal mine multipurpose overall crawler type full-hydraulic directional drilling machine

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