The key technology for drilling horizontal well in coal seam roof in Qianbei mining area

Authors

HU Xinpeng, China Coal Research Institute, Beijing 100013, China; Xi’an Research Institute Co. Ltd., China Coal Technology and Engineering Group Corp., Xi’an 710077, China
ZHAO Yongzhe, China Coal Research Institute, Beijing 100013, China; Xi’an Research Institute Co. Ltd., China Coal Technology and Engineering Group Corp., Xi’an 710077, China
XU Kanshe, Xi’an Research Institute Co. Ltd., China Coal Technology and Engineering Group Corp., Xi’an 710077, China
WANG Linjie, Xi’an Research Institute Co. Ltd., China Coal Technology and Engineering Group Corp., Xi’an 710077, China
LI Peng, Xi’an Research Institute Co. Ltd., China Coal Technology and Engineering Group Corp., Xi’an 710077, China
DUAN Huijun, Xi’an Research Institute Co. Ltd., China Coal Technology and Engineering Group Corp., Xi’an 710077,China

Abstract

primary ways to develop the soft coal seam CBM. Aiming at the complex geological conditions and reservoir conditions in Qianbei mining area of Guizhou Province, in order to solve the problems of horizontal well leakage, well trajectory control and solid completion in the horizontal well drilling of coal seam roof, the key technology of horizontal well drilling of coal seam roof in Qianbei mining area, with the accurate control of trajectory as the core, and the technology of preventing leakage, eccentricity and solid completion are combined. Combined with on-site drilling practice, the problems of difficulties in horizontal well drilling were successfully solved, which significantly shortened the drilling cycle and significantly improved economic benefits. The research results provide a new approach for the drilling and development of CBM in Guizhou Province, it also opens up a new direction for high gas mine surface prevention and control，which has significant application and promotion value.

Keywords

CBM roof horizontal well, leakage prevention and plugging, precise trajectory control, decentration connecting, technology of well cementation and completion

DOI

10.3969/j.issn.10011986.2020.01.031

Recommended Citation

HU Xinpeng, ZHAO Yongzhe, XU Kanshe, et al. (2020) "The key technology for drilling horizontal well in coal seam roof in Qianbei mining area," Coal Geology & Exploration: Vol. 48: Iss. 1, Article 32.
DOI: 10.3969/j.issn.10011986.2020.01.031
Available at: https://cge.researchcommons.org/journal/vol48/iss1/32

Reference

[1] 黄长国,罗国辉,康建宁,等. 西南地区煤矿瓦斯灾害现状及防治对策研究[J]. 矿业安全与环保,2015,42(5):112-115. HUANG Changguo,LUO Guohui,KANG Jianning,et al. Research on present situation of gas disasters and preventive countermeasures in coal mines in southwest area[J]. Mining Safety & Environmental Protection,2015,42(5):112-115.

[2] 徐宏杰. 贵州省薄-中厚煤层群煤层气开发地质理论与技术[D]. 徐州:中国矿业大学,2012. XU Hongjie. Geological theory and technology for coalbed methane development with thin and medium coal seam zones in Guizhou[D]. Xuzhou:China University of Mining & Technology,2012.

[3] 徐宏杰,桑树勋,杨景芬,等. 贵州省煤层气勘探开发现状与展望[J]. 煤炭科学技术,2016,44(2):1-7. XU Hongjie,SANG Shuxun,YANG Jingfen,et al. Status and expectation on coalbed methane exploration and development in Guizhou Province[J]. Coal Science and Technology,2016,44(2):1-7.

[4] 高弟,秦勇,易同生. 论贵州煤层气地质特点与勘探开发战略[J]. 中国煤炭地质,2009,21(3):20-23. GAO Di,QIN Yong,YI Tongsheng. Geological condition,exploration and exploitation strategy of coal-bed methane resources in Guizhou,China[J]. Coal Geology of China,2009,21(3):20-23.

[5] 谢国毅,刘虎,毛志新. 贵州岩溶地区煤层气钻井关键技术[J]. 探矿工程(岩土钻掘工程),2018,45(5):46-49. XIE Guoyi,LIU Hu,MAO Zhixin. Key coalbed methane drilling technology in Guizhou karst area[J]. Exploration Engineering(Rock & Soil Drilling and Tunneling),2018,45(5):46-49.

[6] 贾承建,陈晨,董夔,等. 碎软低渗煤层顶板水平井分段压裂高效抽采煤层气技术研究[J]. 天然气地球科学,2017,28(12):1873-1881. JIA Chengjian,CHEN Chen,DONG Kui,et al. Research on the technology of high efficient to drainage CBM by multistage fracturing in horizontal well along the roof of broken soft and low permeability coalseam[J]. Natural Gas Geoscience,2017,28(12):1873-1881.

[7] 马耕,巩春生. 虚拟储层抽采瓦斯技术探讨[J]. 煤矿安全,2009,40(5):94-95. MA Geng,GONG Chunsheng. Probing into gas drainage technology by virtual reservoir[J]. Safety in Coal Mines,2009,40(5):94-95.

[8] 刘贻军,曾祥洲,胡刚,等. 贵州煤层气储层特征及勘探开发技术对策:以比德-三塘盆地为例[J]. 煤田地质与勘探,2017,45(1):71-74. LIU Yijun,ZENG Xiangzhou,HU Gang,et al. Characteristics and technical measures of exploration and development of coalbed methane reservoir in Guizhou Province:A case of Bide-Santang area[J]. Coal Geology & Exploration,2017,45(1):71-74.

[9] 张群,葛春贵,李伟,等. 碎软低渗煤层顶板水平井分段压裂煤层气高效抽采模式[J]. 煤炭学报,2018,43(1):150-159. ZHANG Qun,GE Chungui,LI Wei,et al. A new model and application of coalbed methane high efficiency production from broken soft and low permeable coal seam by roof strata-in horizontal well and staged hydraulic fracture[J]. Journal of China Coal Society,2018,43(1):150-159.

[10] 许耀波,朱玉双,张培河. 紧邻碎软煤层的顶板岩层水平井开发煤层气技术[J]. 天然气工业,2018,38(9):70-75. XU Yaobo,ZHU Yushuang,ZHANG Peihe. Application of CBM horizontal well development technology in the roof strata close to broken-soft coal seams[J]. Natural Gas Industry,2018,38(9):70-75.

[11] 刘修善. 定向钻井轨道设计与轨迹计算的关键问题解析[J]. 石油钻探技术,2011,39(5):1-7. LIU Xiushan. Analysis of the key issues involved in well path planning and trajectory calculation for directional drilling[J]. Petroleum Drilling Techniques,2011,39(5):1-7.

[12] 李昌盛,徐术国,杨传书,等. 煤层气多分支水平井井眼轨道优化设计模型[J]. 煤田地质与勘探,2015,43(2):48-52. LI Changsheng,XU Shuguo,YANG Chuanshu,et al. Trajectory optimization design model of multi-branch horizontal well of coalbed methane[J]. Coal Geology & Exploration,2015,43(2):48-52.

[13] 席宝滨,高德利. U形水平井连通过程中的相对位置不确定性分析[J]. 石油钻探技术,2014,42(6):18-24. XI Baobin,GAO Deli. Analysis of the Relative Position Uncertainty in the Intersecting Process of U-Shaped Horizontal Wells[J]. Petroleum Drilling Techniques,2014,42(6):18-24.

[14] 倪光清,薛晓辉,周炳朝,等. 复杂条件下煤层气钻井堵漏技术研究[J]. 煤矿安全,2018,49(3):72-74. NI Guangqing,XUE Xiaohui,ZHOU Bingchao,et al. Study on leakage plugging technology of CBM drilling under complex geological conditions[J]. Safety in Coal Mines,2018,49(3):72-74.

[15] 徐堪社,王林杰,常涛. 六盘水地区煤层气井灰岩地层空气钻井斜机理研究[J]. 化学工程与装备,2018,10:96-97. XU Kanshe,WANG Linjie,CHANG Tao. Study on the mechanism of air drilling in coal and methane wells in Liupanshui area[J]. Chemical Engineering & Equipment,2018,10:96-97.

[16] 王海,杨兆中,李岳. 煤层气U型水平井定向井远端连通钻井工艺研究[J]. 煤炭科学技术,2018,46(6):206-210. WANG Hai,YANG Zhaozhong,LI Yue. Research on CBM drilling technique for U-shaped horizontal well remotely connected with directional well[J]. Coal Science and Technology,2018,46(6):206-210.

[17] 苏义脑. 水平井井眼轨道控制[M]. 北京:石油工业出版社,2000. SU Yinao. Horizontal well trajectory control[M]. Beijing:Petroleum Industry Press,2000.

[18] 唐雪平,郭自力. 中短半径水平井弯壳螺杆钻具造斜预测方法研究[J]. 钻采工艺,2000,23(3):13-18. TANG Xueping,GUO Zili. Study on prediction methods of build-up rate of PDM with bent housing for middle-short radius horizontal well[J]. Drilling & Production Technology,2000,23(3):13-18.

[19] 赵永哲. 煤矿区煤层气水平对接井轨迹控制与完井技术研究[D]. 北京:煤炭科学研究总院,2017. ZHAO Yongzhe. Study on trajectory control and well completion technology for CBM horizontally-intersected well in coal mining areas[D]. Beijing:China Coal Research Institute,2017.

[20] 赵永哲,石智军,张迎接. 煤层气水平对接井用单弯无稳螺杆钻具组合造斜能力预测[J]. 煤田地质与勘探,2018,46(3):163-167. ZHAO Yongzhe,SHI Zhijun,ZHANG Yingjie. Prediction of deflection capacity of PDM with single bent screw without stabilizer for CBM horizontal-butted well[J]. Coal Geology & Exploration,2018,46(3):163-167.

[21] 石智军,张群,王保玉,等. 煤层气开发精确对接井钻进技术装备研发与应用[J]. 煤炭科学技术,2016,44(5):6-10. SHI Zhijun,ZHANG Qun,WANG Baoyu,et al. Research & development and application on drilling technology and equipment of accurate butted well for coalbed methane development[J]. Coal Science and Technology,2016,44(5):6-10.

[22] 张海山,张凯敏,宫吉泽,等. 不同类型扶正器对水平井下套管摩阻的影响研究[J]. 钻采工艺,2014,37(3):22-25. ZHANG Haishan,ZHANG Kaimin,GONG Jize,et al. Study on influence of different types of centralizer on running casing friction in horizontal well[J]. Drilling & Production Technology,2014,37(3):22-25.