华东地区深部煤层气资源与勘探开发前景

doi:10.13809/j.cnki.cn32-1825/te.2023.04.001

油气藏评价与开发 ›› 2023, Vol. 13 ›› Issue (4): 403-415.doi: 10.13809/j.cnki.cn32-1825/te.2023.04.001

华东地区深部煤层气资源与勘探开发前景

桑树勋^1,^2,³(),韩思杰^1,²,周效志^3,⁴,刘世奇^1,²,王月江⁵

1.中国矿业大学江苏省煤基温室气体减排与资源化利用重点实验室，江苏徐州 221008
2.中国矿业大学碳中和研究院，江苏徐州 221008
3.中国矿业大学资源与地球科学学院，江苏徐州 221116
4.中国矿业大学煤层气资源与成藏过程教育部重点实验室，江苏徐州 221008
5.新疆维吾尔自治区煤炭煤层气测试研究所，新疆乌鲁木齐 830099

收稿日期:2023-05-09 发布日期:2023-09-01 出版日期:2023-08-26
作者简介:桑树勋（1967—），男，博士，二级教授，从事碳中和地质技术、煤系非常规天然气勘探开发、煤系战略性矿产与沉积地质研究。地址：江苏省徐州市泉山区金山东路1号中国矿业大学（文昌校区）碳中和研究院，邮政编码：221008。E-mail：shxsang@cumt.edu.cn
基金资助:
国家自然科学基金重点项目“煤系气高效勘探开发的岩石力学地层理论方法体系研究”(42030810);国家自然科学基金碳中和专项“CO2地质封存潜力与能源资源协同理论方法体系及其应用基础”(42141012)

Deep coalbed methane resource and its exploration and development prospect in East China

SANG Shuxun^1,^2,³(),HAN Sijie^1,²,ZHOU Xiaozhi^3,⁴,LIU Shiqi^1,²,WANG Yuejiang⁵

1. Jiangsu Key Laboratory of Coal-based Greenhouse Gas Control and Utilization, China University of Mining and Technology, Xuzhou, Jiangsu 221008, China
2. Carbon Neutrality Institute, China University of Mining and Technology, Xuzhou, Jiangsu 221008, China
3. School of Resources and Geosciences, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China
4. Key Laboratory of Coalbed Methane Resources and Reservoir Formation Process, Ministry of Education, China University of Mining and Technology, Xuzhou, Jiangsu 221008, China
5. Xinjiang Uygur Autonomous Region Coal and Coalbed Methane Testing Institute, Urumqi, Xinjiang 830099, China

Received:2023-05-09 Online:2023-09-01 Published:2023-08-26

摘要/Abstract

摘要：

华东地区深部煤层气勘探开发对保障区域能源需求、优化地区能源结构、实现“双碳”目标具有重要意义。基于系统调研和前期研究积累，总结了华东地区煤层气及瓦斯抽采现状，分析了该地区深部煤层含气特征与资源潜力，探讨了已有深部煤层气勘探开发技术在华东地区的适用性，讨论并预测了华东地区深部煤层气勘探开发潜在有利区，最后提出了华东地区开展深部煤层气勘探开发的优势和挑战。已有研究结果表明：华东地区针对煤矿区及构造煤的煤层气勘探开发技术储备良好，形成了煤矿区煤层气开发“淮南模式”与构造煤煤层气顶板水平井分段压裂开发技术。华东地区深部煤层具有含气量高（大于10 cm³/g）和含气饱和度高（大于80 %）的特征，两淮矿区深部煤层气预测地质资源量占绝大多数，2 000 m以浅高达8 984.69×10⁸ m³，表明两淮地区深部煤层气具备良好的资源优势。深部煤层气的水平井等开发方式及造洞穴应力释放、水力割缝等增产工艺在华东地区具有较大的应用前景，淮南煤田潘谢矿区可作为华东地区深部煤层气勘探开发先导试验区。华东地区深部煤层气工作程度低，需要开展区域性的深部煤层气资源评价与典型地区成藏规律的深入解剖。

关键词: 深部煤层气, 资源潜力, 勘探开发前景, 淮南煤田, 华东地区

Abstract:

Deep coalbed methane（CBM） development in East China is of great significance to ensure regional energy demand, optimize regional energy structure and realize the dual carbon goal. Based on the systematic investigation and previous works, the current situations of CBM extraction in East China were summarized, and the gas-bearing attributes and resources potential of deep CBM were analyzed. Then, the applicability of existing deep CBM exploration and development technologies in East China was discussed, and the potential favorable areas of deep CBM exploration and development in East China were discussed and predicted. Finally, the advantages and challenges of deep CBM exploration and development in East China are put forward. Previous results show that: East China has a good CBM development accumulation on the tectonically deformed coal and in the coal mine area, such as “Huainan CBM extraction model” and horizontal well staged fracturing in the roof of the tectonically deformed coal. Deep coal in East China has a high gas content（greater than10 cm³/g） and gas-bearing saturation（greater than 80 %）. The predicted geological resources of deep CBM are 8 984.69×10⁸ m³ in the Huannan-Huanbei mining area, suggesting that Huainan and Huaibei coal field has an attractive deep CBM resources potential. Horizontal well development and hydraulic fracturing techniques for deep CBM have great application prospects in East China. Panxie mine area in Huainan coal field is expected to be a pilot area for deep CBM exploration and development in these areas. However, the overall exploration and development degree of deep CBM is low, so it is necessary to carry out the more detailed resource evaluation and analysis of deep CBM geological accumulation in the type area, like deep Panxie coal mine in Huainan coal field.

Key words: deep CBM, resources potential, exploration and development prospect, Huainan coalfield, East China

中图分类号:

TE37

桑树勋,韩思杰,周效志等. 华东地区深部煤层气资源与勘探开发前景[J]. 油气藏评价与开发, 2023, 13(4): 403-415.

Shuxun SANG,Sijie HAN,Xiaozhi ZHOU, et al. Deep coalbed methane resource and its exploration and development prospect in East China[J]. Petroleum Reservoir Evaluation and Development, 2023, 13(4): 403-415.

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省份	煤田或矿区	煤层号	埋深/m	厚度/m	煤级	含气量/（m³/t）	煤体结构	裂隙发育情况	镜质组含量/%	惰质组含量/%	壳质组含量/%	水分含量/%	挥发分含量/%	灰分含量/%
安徽	潘谢矿区	13-1	900~1 450	1.03~8.26	肥煤	0.80~18.70	碎裂煤	发育	38.41~88.22	7.19~29.78	1.03~9.27	0.66~1.50	29.46~40.04	6.23~19.73
	潘谢矿区	11-2	1 195~1 470	0.51~6.37	气煤	9.66~13.68	糜棱煤	发育	65.83	11.82	7.47	1.82~2.30	36.12~38.43	21.67~28.19
	张集井田	6	600~800	4.13~6.40	气煤	8.17	碎裂煤	发育	53.20~66.10	12.10~34.80	11.90~21.80	1.28~1.64	37.56~39.49	21.38~23.38
	丁集矿	13-1	800~1 000	4.13	气煤	10.55	碎裂煤	发育	68.27	17.26	14.47	0.70~5.19	36.33~45.54	10.95~32.26
	刘庄矿	13-1	500~1 000	0.98~11.07	气煤	7.34	糜棱煤	较发育	53.69	18.48	16.62	1.98	30.00	32.13
	孙疃矿	7	550~1 050	0~4.46	肥煤	4.12	碎裂煤	发育	70.49	19.67	9.77	1.08	21.89~40.49	11.59~39.40
		8	800	0~4.31	肥煤	12.50	碎粒煤	发育	82.71~87.28	10.44	3.94	1.02~1.33	21.48~31.08	8.97~41.56
		10	220~750	0~5.38	肥煤	11.29	碎裂煤	较发育	65.47~90.82	9.20	7.61	0.69~1.33	16.58~31.56	5.84~14.36
江苏	张集矿	7	488~1 323	0~6.11	气煤	2.08~8.60	碎裂煤	发育	60.60	22.60	6.10	1.75	22.13~40.15	10.34~25.60
	垞城矿	21	632~904	0~1.88	肥煤	1.91~4.69	碎裂煤	较发育	87.00	8.00	5.00	1.02	42.70	12.14
	张小楼矿	2	391~1 384	0.05~12.0	气煤	0.86~9.2	碎裂煤	较发育	73.00	17.00	11.00	1.13	34.77	22.96
山东	黄河北煤田	13	500~2 000	0.6~5.0	贫煤	1.68~5.44	碎裂煤	发育	39.30~82.20	5.70~23.90	0~9.80	0.36~4.62	9.07~39.40	4.15~45.97
	济阳坳陷	9	>2 000	1.23~5.21	贫煤	>15	原生结构煤	较发育	87.40	10.80	0.20	1.08	12.41	14.48
	济阳坳陷	11	>2 000	0.34~2.89	肥煤	>10	碎裂煤	发育	78.00	17.20	3.40	2.33	39.65	3.58

华东地区深部煤层气资源与勘探开发前景

Deep coalbed methane resource and its exploration and development prospect in East China

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