复杂顶板高位定向长钻孔全程下筛管技术实践
Technical practice of running screen in the whole process for high level directional drilling of complex roof
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摘要: 针对淮南矿区复杂地层顶板高位定向钻孔施工及瓦斯抽采中存在的钻孔坍塌造成瓦斯抽采通道堵塞问题，研究复杂地层顶板高位定向长钻孔全程下筛管技术；在张集煤矿进行了现场试验，通过对下筛管施工过程中遇到的复杂地层易塌孔、PVC筛管强度低、钢制筛管对测量系统影响、下管工艺流程复杂、遇阻后难处理等问题的分析,针对性的提出确保轨迹平滑、使用钢制筛管、单个钻孔施工完成后及时下管、可切割式导向头及辅助下筛管变径等技术措施；成功实现钻孔平均下管率97%以上，基本实现复杂顶板高位定向长钻孔全程下筛管，保证了瓦斯抽采效果；并利用形成的技术措施在顾桥矿南区成功实现?准73 mm钢制筛管最大下入深度744.6 m，创造煤矿井下?准73 mm钢筛管下放记录，促进“以孔代巷”技术的全面推广应用。Abstract: High level directional drilling construction of roof in complex strata of Huainan Coal Mine and the problem of caving of borehole in gas extraction process causes blockage of gas extraction channel, the whole process screening technology of high directional long drilling in the roof of complex strata is studied. Field tests have been carried out in Zhangji Coal Mine. Through problems of running screen encountered in the construction process of complex formation of fragile low hole, low PVC screen strength, influence of steel screen on measuring system, complex running screen process, difficult treatment after blockage, technical measures, such as ensuring smooth track, using steel screen tube, timely pipe discharge after completion of single drilling, cutting type guide head and auxiliary reducing diameter of screen tube, were proposed. The average running screen pipe rate of drilling was more than 97%, and the whole process of running screen pipe was basically realized in high level directional long drilling of the complex roof, which ensured the gas extraction effect. Using the developed technical measures, the maximum running depth of ?准73 mm steel screen tube was successfully realized in the south area of Guqiao Mine, creating the running depth record of ?准73 mm steel screen in the underground coal mine of 744.6 m, promoting the comprehensive promotion and application of the technology of “replacing roadway with hole”.
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[1] 袁亮.淮南矿区瓦斯治理技术与实践[J].煤炭科学技术，2000（1）：7-11. [2] 童碧，许超，刘飞，等.淮南矿区瓦斯抽采中以孔代巷技术研究与工程实践[J].煤炭科学技术，2018，46（4）：33-39. TONG Bi, XU Chao, LIU Fei, et al. Technology research on borehole in place of roadway and its engineering practice in gas drainage of Huainan Mining Area[J]. Coal Science and Technology, 2018, 46（4）: 33-39.
[3] 许超，王鲜，李泉新，等.顾桥煤矿顶板复杂地层中高位定向钻孔成孔试验[J].煤田地质与勘探，2018，46（3）：184-189. XU Chao, WANG Xian, LI Quanxin, et al. Borehole-forming experiment of high level directional drilling in complex seam roof of Guqiao Coal Mine[J]. Coal Geology & Exploration, 2018, 46（3）: 184-189.
[4] 姜磊，许超，王鲜，等.顶板高位大直径定向钻孔在顾桥矿南区的应用[J].能源与环保，2019，41（2）：77. JIANG Lei, XU Chao, WANG Xian, et al. Application of directional high level and large diameter drilling in seam roof of southern part in Guqiao Coal Mine[J]. China Energy and Environmental Protection 2019, 41（2）: 77.
[5] 童碧，许超，王鲜，等.淮南矿区复杂顶板高位定向孔复合排渣钻进技术[J].煤炭科学技术，2020，48（S1）：140-143. TONG Bi, XU Chao, WANG Xian, et al. Compound slag removal technology of high directional drilling for complex roof in Huainan Mining Area[J]. Coal Science and Technology, 2020, 48（S1）: 140-143.
[6] 韩颖，史晓辉，孙亮，等.松软煤层下筛管护孔高效抽采瓦斯技术试验研究[J].煤炭技术，2017，36（10）：98-101. HAN Ying, SHI Xiaohui, SUN Liang, et al. Experimental study on high efficient gas drainage technology by inserting screen pipe protected borehole in soft seam[J]. Coal Technology, 2017, 36（10）: 98-101.
[7] 张强，王继承，王四一.筛管护孔工艺技术应用试验及瓦斯抽采效果研究[J].煤炭技术，2016，35（10）：162. ZHANG Qiang, WANG Jicheng, WANG Siyi. Application test and gas extraction effect research of screen pipe hole-protected technology[J]. Coal Technology, 2016, 35（10）: 162.
[8] 孟战成.顺层瓦斯抽采钻孔全程下筛管技术和装置的研究与应用[J].煤炭工程，2019，51（3）：54-59. MENG Zhancheng. Research and application of full-length screen pipe technology and equipment for bedding gas drainage drilling[J]. Coal Engineering, 2019, 51（3）: 54-59.
[9] 张许乐，卢建收.松软低透气性煤层钻孔下筛管高效抽采瓦斯技术实践[J].煤矿安全，2017，48（1）：67. ZHANG Xule, LU Jianshou. Efficient gas drainage technology practice of placing screen pipe in borehole of soft and low permeability coal seam[J]. Safety in Coal Mines, 2017, 48（1）: 67.
[10] 司原龙.顶板定向长钻孔全孔下筛管技术的应用[J].现代矿业，2019，35（8）：52-54. SI Yuanlong. Application of screen technology under directional long hole drilling in roof[J]. Modern Mining, 2019, 35（8）: 52-54.
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