| 径向水力喷射钻井技术在煤矿注浆孔中的应用 |
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| 引用本文： | 郭再峰,张全林,韩晓辉,郝凯伟.径向水力喷射钻井技术在煤矿注浆孔中的应用[J].探矿工程,2015,42(11):41-45. |
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| 作者姓名： | 郭再峰 张全林 韩晓辉 郝凯伟 |
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| 作者单位： | 河北省煤田地质局水文地质队,河北省煤田地质局水文地质队,河北省煤田地质局水文地质队,河北省煤田地质局水文地质队 |
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| 摘 要： | 采用石油行业径向水平喷射钻井技术在煤矿注浆堵水方面可实现水平定向射流成孔，在薄层灰岩、奥陶系灰岩承压含水层中寻找沟通裂隙，尤其在直井或分支井段较小漏水的情况下可进行多分支喷射，还可以加适量盐酸、酸化缓蚀剂进行局部酸化沟通裂隙，压裂地层，从而降低注浆压力，提高注浆堵水效果。径向水力喷射钻井在峰峰集团梧桐庄矿9号注浆孔应用取得了一定的成效。该技术也可作为地热井增大水量的一种手段。
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| 关 键 词： | 矿井开采预注浆 径向水平喷射钻井 酸化压裂 |
| 收稿时间： | 2015/3/11 0:00:00 |
| 修稿时间： | 2015/11/5 0:00:00 |
Application of Radial Hydraulic Jet Drilling Technology in Grouting Holes of Coal Mine |
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| GUO Zai-feng,ZHANG Quan-lin,HAN Xiao-hui and HAO Kai-wei.Application of Radial Hydraulic Jet Drilling Technology in Grouting Holes of Coal Mine[J].Exploration Engineering(Drilling & Tunneling),2015,42(11):41-45. |
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| Authors: | GUO Zai-feng ZHANG Quan-lin HAN Xiao-hui and HAO Kai-wei |
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| Institution: | Hydrological Geological Team of Hebei Province Coal Geology Bureau,Hydrological Geological Team of Hebei Province Coal Geology Bureau,Hydrological Geological Team of Hebei Province Coal Geology Bureau,Hydrological Geological Team of Hebei Province Coal Geology Bureau |
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| Abstract: | By the radial horizontal jet drilling technology applied in oil industry, horizontal directional jet hole can be realized for water block grouting in coalmine. This technology can also be used in looking for the linked fractures in thin limestone and Ordovician limestone confined aquifer, especially in multi-branch injection in vertical well and multilateral well with slight leakage; what is more, with this technology adding appropriate amount of hydrochloric acid and acid corrosion inhibitor for local acid to fracture formation in order to reduce the grouting pressure and improve grouting effect for water blocking. The radial hydraulic jet drilling technology was applied in 9# grouting hole of Wutongzhuang mine of Fengfeng Group with some effects, which can be a means of increasing the water amount of geothermal well. |
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| Keywords: | pre-grouting coal mine mining radial horizontal jet drilling acid fracturing |
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