CN106320982B - Detect hole construction technology in a kind of underground Neogene System stratum - Google Patents

Detect hole construction technology in a kind of underground Neogene System stratum Download PDF

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Publication number
CN106320982B
CN106320982B CN201610687279.4A CN201610687279A CN106320982B CN 106320982 B CN106320982 B CN 106320982B CN 201610687279 A CN201610687279 A CN 201610687279A CN 106320982 B CN106320982 B CN 106320982B
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China
Prior art keywords
section
hole
casing
drilling
neogene system
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CN201610687279.4A
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CN106320982A (en
Inventor
孙广京
李根芳
徐栓祥
赵健
吕伟魁
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SHANDONG XINJULONG ENERGY CO Ltd
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SHANDONG XINJULONG ENERGY CO Ltd
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/20Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00Sealing or packing boreholes or wells
    • E21B33/10Sealing or packing boreholes or wells in the borehole
    • E21B33/13Methods or devices for cementing, for plugging holes, crevices or the like

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (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)
  • Earth Drilling (AREA)

Abstract

The invention discloses a kind of underground Neogene System stratum to detect hole construction technology, it bores the drilling of 15-20m depth first, installs aperture section protection casing in the borehole;It is further continued for creeping into deep, 5-10m in Neogene System stratum is reached after drill-through roof rock section, weathered zone, exits drilling rod;Then complete opening section protection casing is installed into entire drilling;It is finally further continued for creeping into Neogene System earth formation deep, until reaching projected depth, hole construction is detected in completion.The present invention descends the hole wall of aperture section sleeve closure aperture section first, ensure that the integrality of aperture hole wall, smoothly creeps into conducive to deep;The hole wall of weathered zone section is closed by the way of complete opening section protection casing again, prevents bulk gravel and argillic horizon water-swellable from influencing, bit freezing is avoided and embraces and bore phenomenon, enable to detect the design level position that Neogene System stratum is got into hole.

Description

Detect hole construction technology in a kind of underground Neogene System stratum
Technical field
The present invention relates to undergrounds to detect hole construction technology.
Background technique
In coal mining, in order to improve the mining up per limit of working face, strata condition is understood, need in underground to Neogene System It is pried into stratum and looks into hole.Pry into the general only aperture section installation protection casing in 20 meters when looking into hole.Pass through detecting hole construction After rock section, broken weathered zone and Neogene System bottom lean clay are frequently encountered, because by bulk gravel and clay in weathered zone Layer water-swellable influences, and easily causes bit freezing and embraces and bore, the design level position on Neogene System stratum cannot be reached by causing to detect hole, be not achieved Improve the purpose of the working face mining upper limit.
Summary of the invention
To solve the above-mentioned problems, the present invention proposes that hole construction technology is detected on a kind of underground Neogene System stratum.
Detect hole construction technology in a kind of underground Neogene System stratum, it is characterised in that: steps are as follows:
The first step bores the drilling of 15-20m depth, in the borehole when underworkings looks into hole to Neogene System stratigraphical drilling first Aperture section protection casing is installed, and is fixed aperture section protection casing using grouting mode;
φ 159mm drill bit is used when the first step drills, the aperture section protection casing specification of installation is φ 146mm;
Second step, then continue to creep into deep with φ 127mm drill bit, it is reached after drill-through roof rock section, weathered zone 5-10m in Neogene System stratum, exits drilling rod;
Third step, φ 108mm complete opening section protection casing is installed into entire drilling, and complete opening section protection casing uses more piece spiral shell Line linking casing, first segment connect the second section and continue after entering drilling, and so on;Pacify in weathered zone in order to prevent Dress is obstructed, and installation method is as follows:
Before setting of casing, upper annular bit identical with casing diameter is connected in first segment casing front end first, at the last It saves cannula end and connects a section drilling rod, drive set tube edge rotation side to transfer using drilling machine rotatory force when entering weathered zone, make to cover Pipe passes through weathered zone down toward bottom hole;Then casing is fixed using grouting mode;
4th step, then continue to creep into Neogene System earth formation deep with φ 73mm drill bit, until reaching projected depth, complete to visit Look into hole construction.
The present invention descends the hole wall of aperture section sleeve closure aperture section first, ensure that the integrality of aperture hole wall, is conducive to It is smoothly crept into deep;The hole wall of weathered zone section is closed by the way of complete opening section protection casing again, prevent bulk gravel and Argillic horizon water-swellable influences, and avoids bit freezing and embraces and bore phenomenon, enables to detect the design level position that Neogene System stratum is got into hole.
Detailed description of the invention
Fig. 1 be the embodiment of the present invention detect hole construction after the completion of schematic diagram;
Fig. 2 is complete opening section protection casing structural schematic diagram.
Specific embodiment
As shown in Figure 1, hole construction technology is detected on a kind of underground Neogene System stratum, steps are as follows:
It is deep to bore 15-20m using φ 159mm drill bit first when underworkings looks into hole to Neogene System stratigraphical drilling for the first step Drilling, install in the borehole specification be φ 146mm aperture section protection casing, and using grouting mode by aperture section protect Wall casing is fixed;
Second step, then continue to creep into deep with φ 127mm drill bit, it is reached after drill-through roof rock section, weathered zone 5-10m in Neogene System stratum, exits drilling rod;
Third step, φ 108mm complete opening section protection casing is installed into entire drilling, and complete opening section protection casing uses more piece spiral shell Line linking casing, first segment connect the second section and continue after entering drilling, and so on;Pacify in weathered zone in order to prevent Dress is obstructed, and installation method is as follows:
As shown in Fig. 2, connecting upper annular bit identical with casing diameter in first segment casing front end first before setting of casing Head connects a section drilling rod in the last section cannula end, drives set tube edge to rotate using drilling machine rotatory force when entering weathered zone Side decentralization, makes casing pass through weathered zone down toward bottom hole;Then casing is fixed using grouting mode;
4th step, then continue to creep into Neogene System earth formation deep with φ 73mm drill bit, until reaching projected depth, complete to visit Look into hole construction.

Claims (1)

1. hole construction technology is detected on a kind of underground Neogene System stratum, it is characterised in that: steps are as follows:
The first step bores the brill of 15-20m depth when underworkings looks into hole to Neogene System stratigraphical drilling with φ 159mm drill bit first The aperture section protection casing that specification is φ 146mm is installed in the borehole, and uses grouting mode by aperture section retaining wall set in hole Pipe is fixed;
Second step, then continue to creep into deep with φ 127mm drill bit, it is reached recently after drill-through roof rock section, weathered zone It is 5-10m in stratum, exits drilling rod;
Third step, φ 108mm complete opening section protection casing is installed into entire drilling, and complete opening section protection casing is connected using more piece screw thread Connecing formula casing, first segment, which enters after drilling, to be connected the second section and continues, and so on;Installation method is as follows:
Before setting of casing, upper annular bit identical with casing diameter is connected in first segment casing front end first, in the last section set Pipe tail end connects a section drilling rod, drives set tube edge rotation side to transfer using drilling machine rotatory force when entering weathered zone, keeps casing suitable Benefit is by weathered zone down toward bottom hole;Then casing is fixed using grouting mode;
4th step, then continue to creep into Neogene System earth formation deep with φ 73mm drill bit, until reaching projected depth, hole is detected in completion Construction.
CN201610687279.4A 2016-08-18 2016-08-18 Detect hole construction technology in a kind of underground Neogene System stratum Active CN106320982B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610687279.4A CN106320982B (en) 2016-08-18 2016-08-18 Detect hole construction technology in a kind of underground Neogene System stratum

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Application Number Priority Date Filing Date Title
CN201610687279.4A CN106320982B (en) 2016-08-18 2016-08-18 Detect hole construction technology in a kind of underground Neogene System stratum

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CN106320982B true CN106320982B (en) 2018-12-18

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110295849B (en) * 2019-06-27 2021-06-22 中国二十冶集团有限公司 Method for grouting holes in petrochemical fracturing zone in shallow rock and drilling assembly

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201896313U (en) * 2010-12-06 2011-07-13 李征 Pipe pile hole forming device for multi-section dual protection casing
CN103114807A (en) * 2013-01-22 2013-05-22 中交天津港湾工程研究院有限公司 Eccentric drilling hole-forming method of down-the-hole drill
CN103485345A (en) * 2013-09-26 2014-01-01 葛洲坝集团基础工程有限公司 Construction method for covering layer closed porthole high-pressure curtain grouting
CN103628912A (en) * 2013-11-04 2014-03-12 葛洲坝集团基础工程有限公司 Goaf management filling grouting construction method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201896313U (en) * 2010-12-06 2011-07-13 李征 Pipe pile hole forming device for multi-section dual protection casing
CN103114807A (en) * 2013-01-22 2013-05-22 中交天津港湾工程研究院有限公司 Eccentric drilling hole-forming method of down-the-hole drill
CN103485345A (en) * 2013-09-26 2014-01-01 葛洲坝集团基础工程有限公司 Construction method for covering layer closed porthole high-pressure curtain grouting
CN103628912A (en) * 2013-11-04 2014-03-12 葛洲坝集团基础工程有限公司 Goaf management filling grouting construction method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
10710 工作面灰岩探查孔出现问题分析;侯善军;《煤炭技术》;20071110;第26卷(第11期);第143-144页 *

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