Exploration History and Enlightenment of Coalbed Methane in Baode Block

doi:10.7657/XJPG20210315

Abstract

Abstract:

Mainly based on the changes in geological knowledge, technological development, number of drilled wells, exploration results and gas production, this paper divides the CBM exploration process of the Baode Block into four stages: (1) Stage of foreign cooperation on exploration and evaluation: 8+9# coal seams were recovered by drainage in horizontal wells, with large water production and difficulties in drainage and pressure reduction; (2) Stage of production test and evaluation of well groups: 4+5# coal seams and 8+9# coal seams were recovered by drainage in cluster wells, with good effect of gas production by drainage; (3) Pilot test stage with integrated exploration and development: the breakthrough in high-yield was achieved through area depressurization of the optimized well pattern in oil-enriched zones; (4) Large-scale development and rolling expansion and evaluation stage: Large-scale productivity construction in favorable areas and rolling expansion exploration in complex areas have been implemented and an annual output of 5×10⁸ m³ have been achieved. Based on the geological understanding and exploration results, this paper summarizes the origin of low-rank coalbed gas, accumulation mode, and “sweet spot” evaluation and the enlightenment to CBM exploration and production in Baode Block. The accumulation theories such as “thermogenic gas as the main source, biogenic gas as the supplement”, “hydrodynamics-controlled gas, monocline and gentle slope” are proposed, and the evaluation index system of “sweet spot” of low-rank coalbed methane enrichment is established. We hope to provide implications to the exploration of low-rank coalbed methane.

Key words: Baode Block, CBM, exploration history, low-rank CBM, production test of CBM well group, large-scale development, rolling expansion and evaluation

CLC Number:

TE132

YANG Xiuchun, MAO Jianshe, LIN Wenji, HAO Shuai, ZHAO Longmei, WANG Yuan, LI Li. Exploration History and Enlightenment of Coalbed Methane in Baode Block[J]. Xinjiang Petroleum Geology, 2021, 42(3): 381-388.

Figures/Tables 4

References 41

[1]	李登华, 高煖, 刘卓亚, 等. 中美煤层气资源分布特征和开发现状对比及启示[J]. 煤炭科学技术, 2018,46(1):252-261.
	LI Denghua, GAO Xuan, LIU Zhuoya, et al. Comparison and revelation of coalbed methane resources distribution characteristics and development status between China and America[J]. Coal Science and Technology, 2018,46(1):252-261.
[2]	庚勐, 陈浩, 陈艳鹏, 等. 第4轮全国煤层气资源评价方法及结果[J]. 煤炭科学技术, 2018,46(6):64-68.
	GENG Meng, CHEN Hao, CHEN Yanpeng, et al. Methods and results of the fourth round national CBM resources evaluation[J]. Coal Science and Technology, 2018,46(6):64-68.
[3]	王涛, 邓泽, 胡海燕, 等. 国内外低阶煤煤层气储层特征对比研究[J]. 煤炭科学技术, 2019,47(9):41-50.
	WANG Tao, DENG Ze, HU Haiyan, et al. Study on characteristics comparison of low rank coal coalbed methane reservoirs at home and abroad[J]. Coal Science and Technology, 2019,47(9):41-50.
[4]	孙粉锦, 李五忠, 孙钦平, 等. 二连盆地吉尔嘎朗图凹陷低煤阶煤层气勘探[J]. 石油学报, 2017,38(5):485-492.
	SUN Fenjin, LI Wuzhong. SUN Qinping, et al. Low-rank coalbed methane exploration in the Jiergalangtu sag,Erlian basin[J]. Acta Petrolei Sinica, 2017,38(5):485-492.
[5]	王博洋, 秦勇, 申建, 等. 我国低煤阶煤煤层气地质研究综述[J]. 煤炭科学技术, 2017,45(1):170-179.
	WANG Boyang, QIN Yong, SHEN Jian, et al. Summarization of geological study on low rank coalbed methane in China[J]. Coal Science and Technology, 2017,45(1):170-179.
[6]	李五忠, 田文广, 孙斌, 等. 低煤阶煤层气成藏特点与勘探开发技术[J]. 天然气工业, 2008,28(3):23-24.
	LI Wuzhong, TIAN Wenguang, SUN Bin, et al. Characteristics of pooling and exploration and development of CBM in low-rank coals[J]. Natural Gas Industry, 2008,28(3):23-24.
[7]	孙平, 刘洪林, 巢海燕, 等. 低煤阶煤层气勘探思路[J]. 天然气工业, 2008,28(3):19-22.
	SUN Ping, LIU Honglin, CHAO Haiyan, et al. Exploration direction of coalbed methane in low-rank coals[J]. Natural Gas Industry, 2008,28(3):19-22.
[8]	王勃, 李景明, 张义, 等. 中国低煤阶煤层气地质特征[J]. 石油勘探与开发, 2009,36(1):30-34.
	WANG Bo, LI Jingming, ZHANG Yi, et al. Geological characteristics of low rank coalbed methane,China[J]. Petroleum Exploration and Development, 2009,36(1):30-34.
[9]	刘大锰, 王颖晋, 蔡益栋低煤阶层气富集主控地质因素与成藏模式分析[J]. 煤炭科学技术, 2018,46(6):1-8.
	LIU Dameng, WANG Yingjin, Analysis of main geological controls on coalbed methane enrichment and accumulation patterns in low rank coals[J]. Coal Science and Technology, 2018,46(6):1-8.
[10]	温声明, 文桂华, 李星涛, 等. 地质工程一体化在保德煤层气田勘探开发中的实践与成效[J]. 中国石油勘探, 2018,23(2):69-75.
	WEN Shengming, WEN Guihua, LI Xingtao, et al. Application and effect of geology-engineering integration in the exploration and development of Baode CBM field[J]. China Petroleum Exploration, 2018,23(2):69-75.
[11]	田文广, 汤达祯, 王志丽, 等. 鄂尔多斯盆地东北缘保德地区煤层气成因[J]. 高校地质学报, 2012,18(3):479-484.
	TIAN Wenguang, TANG Dazhen, WANG Zhili, et al. Origin of coal-bed methane in Baode,northeastern Ordos basin[J]. Geological Journal of China Universities, 2012,18(3):479-484.
[12]	徐凤银, 陈东, 梁为, 等. 煤层气（煤矿瓦斯）勘探开发技术进展及发展方向[M]. 北京: 科学出版社, 2020.
	XU Fengyin, CHEN Dong, LIANG Wei, et al. Technical progress and development direction of coal bed methane (coal mine gas) exploration and development[M]. Beijing: Science Press, 2020.
[13]	屈晓荣. 河东煤田杨家湾勘查区主煤储层特征分析及意义[J]. 中国煤炭地质, 2012,24(11):27-30.
	QU Xiaorong. Main coal reservoirs characteristic analysis and its significance[J]. Coal Geology of China, 2012,24(11):27-30.
[14]	秦玉金. 地勘期间煤层瓦斯含量测定方法存在问题及对策分析[J]. 煤矿安全, 2011,42(8):144-146.
	QIN Yujin. Analysis on the problems and countermeasures in the determination method of coal seam gas content during geological exploration[J]. Safety in Coal Mines, 2011,42(8):144-146.
[15]	彭少涛, 刘川庆, 朱卫平, 等. 保德区块中低阶煤压裂存在的问题及技术对策[M]//2011年煤层气学术研讨会论文集. 北京: 地质出版社, 2011.
	PENG Shaotao, LIU Chuanqing, ZHU Weiping, et al. The problems and the corresponding technical strategies of low rank coal fracture in Baode block[M]//Proceedings of the 2011 CBM Symposium Beijing: Geology Press, 2011.
[16]	倪小明, 王延斌, 接铭训, 等. 煤层气井排采初期合理排采强度的确定方法[J]. 西南石油大学学报, 2007,29(6):101-104.
	NI Xiaoming, WANG Yanbin, JIE Mingxun, et al. Determination of reasonable drainage intensity during early drainage stage in coalbed methane wells[J]. Journal of Southwest Petroleum University, 2007,29(6):101-104.
[17]	宋岩, 张新民, 柳少波中国煤层气基础研究和勘探开发技术新进展[J]. 天然气工业, 2005,25(1):1-7.
	SONG Yan, ZHANG Xinmin, LIU Shaobo. Progress in the basic studies and exploration & development techniques of coalbed methane in China[J]. Natural Gas Industry, 2005,25(1):1-7.
[18]	毛志新. 保德区块煤层气丛式井快速钻井技术研究[J]. 探矿工程(岩土钻掘工程), 2012,39(2):12-14 .
	MAO Zhixin. Research on faster drilling technology of coal-bed methane cluster wells[J]. Exploration Engineering(Rock & Soil Drilling and Tunneling), 2012,39(2):12-14.
[19]	葛东. 压降监测数据分析在煤层气压裂效果评价中的应用:以山西保德井区为例[J]. 油气井测试, 2015,24(1):23-26.
	GE Dong. Application of analysis on the monitoring data of pressure drop in CBM fracturing effect’s evaluation:taking Baode oil region in Shanxi as an example[J]. Well Testing, 2015,24(1):23-26.
[20]	孙仁远, 姚世峰, 梅永贵, 等. 煤层气压裂水平井产能影响因素[J]. 新疆石油地质, 2019,40(5):575-578.
	SUN Renyuan, YAO Shifeng, MEI Yonggui, et al. Factors influencing productivity in CBM fractured horizontal wells[J]. Xinjiang Petroleum Geology, 2019,40(5):575-578.
[21]	接铭训, 葛晓丹, 彭朝阳, 等. 中国煤层气勘探开发工程技术进展与发展方向[J]. 天然气工业, 2011,31(12):63-65.
	JIE Mingxun, GE Xiaodan, PENG Chaoyang, et al. Advance in the CBM exploration and development techniques and their developing trend in china[J]. Natural Gas Industry, 2011,31(12):63-65.
[22]	接铭训. 鄂尔多斯盆地东缘煤层气勘探开发前景[J]. 天然气工业, 2010,30(6):1-6.
	JIE Mingxun. Prospects in coalbed methane gas exploration and production in the eastern Ordos basin[J]. Natural Gas Industry, 2010,30(6):1-6.
[23]	张雷, 郝帅, 张伟, 等. 中低煤阶煤层气储量复算及认识:以鄂尔多斯盆地东缘保德煤层气田为例[J]. 石油实验地质, 2020,42(1):147-155.
	ZHAN Lei, HAO Shuai, ZHANG Wei, et al. Recalculation and understanding of middle and low rank coalbed methane reserves:a case study of Baode coalbed methane field on the eastern edge of Ordos basin[J]. Petroleum Geology ＆ Experiment, 2020,42(1):147-155.
[24]	邹才能, 陶士振, 候连华, 等. 非常规油地质学[M]. 北京: 地质出版社, 2014.
	ZOU Caineng, TAO Shizhen, HOU Lianhua, et al. Unconventional petroleum geology[M]. Beijing: Geological Publishing House, 2014.
[25]	焦方正, 邹才能, 杨智. 陆相源内石油聚集地质理论认识及勘探开发实践[J]. 石油勘探与开发, 2020,47(6):1 067-1 078.
	JIAO Fangzheng, ZOU Caineng, YANG Zhi. Geological theory and exploration & development practice of hydrocarbon accumulation inside continental source kitchens[J]. Petroleum Exploration and Development, 2020,47(6):1 067-1 078.
[26]	毛建设, 綦晓东, 王予新. 煤层气采出水处理技术探讨[J]. 中国煤层气, 2014,11(6):31-35.
	MAO Jianshe, QI Xiaodong, WANG Yuxin. Discussion on treatment technology of coalbed methane produced water[J]. China Coalbed Methane, 2014,11(6):31-35.
[27]	邵林海, 徐礼贵, 李星涛, 等. 煤层含气量定量预测技术及应用[J]. 新疆石油地质, 2016,37(2):222-226.
	SHAO Linhai, XU Ligui, LI Xingtao, et al. Quantitative prediction of coalbed gas content:technique and application[J]. Xinjiang Petroleum Geology, 2016,37(2):222-226.
[28]	朱泽斌. 裸眼洞穴井在山西保德煤层气区块的实验和应用[J]. 中国煤炭地质, 2013,25(12):75-78.
	ZHU Zebin. Experimentation and application of open-hole cavity completion in Baode CBM block[J]. Coal Geology of China, 2013,25(12):75-78.
[29]	闫霞, 温声明, 聂志宏, 等. 影响煤层气开发效果的地质因素再认识[J]. 断块油气田, 2020,27(3):375-380.
	YAN Xia, WEN Shengming, NIE Zhihong, et al. Re-recognition of geological factors affecting coalbed methane development effect[J]. Fault-Block Oil & Gas Field, 2020,27(3):375-380.
[30]	闫霞, 李小军, 赵辉, 等. 煤层气井井间干扰研究及应用[J]. 岩性油气藏, 2015,27(2):126-132.
	YAN Xia, LI Xiaojun, ZHAO Hui, et al. Research on well interference of coalbed methane wells and its application[J]. Lithologic Reservoirs, 2015,27(2):126-132.
[31]	刘大锰, 李俊乾. 我国煤层气分布赋存主控地质因素与富集模式[J]. 煤炭科学技术, 2014,42(6):19-23.
	LIU Dameng, LI Junqian. Main geological controls on distribution and occurence and enrichment patterns of coalbed methane in China[J]. Coal Science and Technology, 2014,42(6):19-23.
[32]	秦勇, 袁亮, 胡千庭, 等. 我国煤层气勘探与开发技术现状及发展方向[J]. 煤炭科学技术, 2012,40(10):1-6.
	QIN Yong, YUAN Liang, HU Qianting, et al. Status and development orientation of coal bed methane exploration and development technology in China[J]. Coal Science and Technology, 2012,40(10):1-6.
[33]	邹才能, 杨智, 朱如凯, 等. 中国非常规油气勘探开发与理论技术进展[J]. 地质学报, 2015,89(6):979-1 007.
	ZOU Caineng, YANG Zhi, ZHU Rukai, et al. Progress in China’s unconventional oil＆gas exploration and development and theoretical technologies[J]. Acta Geologica Sinica, 2015,89(6):979-1 007.
[34]	杨秀春, 刘之的, 陈彩红, 等. 韩城矿区煤层气富集的影响因素剖析[J]. 中国煤层气2013, 10(4):26-32.
	YANG Xiuchun, LIU Zhidi, CHEN Caihong, et al. Analysis on influencing factors of CBM enrichment in Hancheng mining area[J]. China Coalbed Methane, 2013,10(4):26-32.
[35]	刘之的, 杨秀春, 陈彩红, 等. 鄂东气田煤层气储层测井综合评价方法研究[J]. 测井技术, 2013,37(3):289-293.
	LIU Zhidi, YANG Xiuchun, CHEN Caihong, et al. Comprehensive log evaluation for coalbed methane reservoir in eastern block of Ordos basin[J]. Well Logging Technology, 2013,37(3):289-293.
[36]	彭泽阳, 李相方, 孙政. 煤层气井排采参数影响因素及优化方法[J]. 新疆石油地质, 2019,40(3):365-370.
	PENG Zeyang, LI Xiangfang, SUN Zheng. Influencing factors and optimization methods of drainage parameters in CBM wells[J]. Xinjiang Petroleum Geology, 2019,40(3):365-370.
[37]	李勇, 孟尚志, 吴鹏, 等. 煤层气成藏机理及气藏类型划分:以鄂尔多斯盆地东缘为例[J]. 天然气工业, 2017,37(8):22-30.
	LI Yong, MENG Shangzhi, WU Peng, et al. Accumulation mechanisms and classification of CBM reservoir types:a case study from the eastern margin of the Ordos basin[J]. Natural Gas Industry, 2017,37(8):22-30.
[38]	温声明, 周科, 鹿倩. 中国煤层气发展战略研讨:以中石油煤层气有限责任公司为例[J]. 天然气工业, 2019,39(5):129-136.
	WEN shengming, ZHOU Ke, LU Qian. A discussion on CBM development strategies in China based upon a case study of PetroChina Coalbed Methane Co. Ltd[J]. Natural Gas Industry, 2019,39(5):129-136.
[39]	陈跃, 马东民, 方世跃, 等. 构造和水文地质条件耦合作用下煤层气富集高产模式[J]. 西安科技大学学报, 2019,39(4):644-655.
	CHEN Yue, MA Dongmin, FANG Shiyue, et al. Enrichment and high-yield models of coalbed methane influenced by geologic structures and hydrologic conditions[J]. Journal of Xi’an University of Science and Technology, 2019,39(4):644-655.
[40]	葛燕燕, 李鑫, 郜琳, 等. 阜康向斜煤层气开发高产关键地质要素[J]. 新疆石油地质, 2019,40(3):328-333.
	GE Yanyan, LI Xin, GAO Lin, et al. Key geological factors of high-yield coalbed methane development in Fukang syncline[J]. Xinjiang Petroleum Geology, 2019,40(3):328-333.
[41]	马东民, 高正, 陈跃, 等. 不同温度下低、中、高阶煤储层甲烷吸附解吸特征差异[J]. 油气藏评价与开发, 2020,10(4):17-24.
	MA Dongmin, GAO Zheng, CHEN Yue, et al. Differences in methane adsorption and desorption characteristics of low,medium and high rank coal reservoirs at different temperatures[J]. Reservoir Evaluation and Development, 2020,10(4):17-24.