新疆阜康矿区煤层气双管柱筛管完井机理与适用性研究

doi:10.13809/j.cnki.cn32-1825/te.2022.04.011

油气藏评价与开发 ›› 2022, Vol. 12 ›› Issue (4): 633-642.doi: 10.13809/j.cnki.cn32-1825/te.2022.04.011

新疆阜康矿区煤层气双管柱筛管完井机理与适用性研究

张龙^1,^2,^3,⁴(),王一兵⁵,鲜保安^1,^2,^3,⁴(),张亚飞⁶,谭章龙⁶,哈尔恒·吐尔松⁵,孙昊^1,^2,^3,⁴,王冠^1,^2,^3,⁴,张锦涛^1,^2,^3,⁴

1.河南理工大学资源环境学院,河南焦作 454003
2.煤炭安全生产与清洁高效利用省部共建协同创新中心,河南焦作 454003
3.河南省非常规能源地质与开发国际联合实验室,河南焦作 454003
4.河南理工大学煤层气/瓦斯地质工程研究中心,河南焦作 454003
5.新疆科林思德新能源有限责任公司,新疆阜康 831500
6.中联煤层气有限责任公司,北京 100016

收稿日期:2022-05-30 发布日期:2022-09-02 出版日期:2022-08-26
通讯作者: 鲜保安 E-mail:302726195@qq.com;759267753@qq.com
作者简介:张龙（1998—）,男,在读硕士研究生,从事非常规天然气钻完井技术研究与应用研究。地址：河南省焦作市山阳区世纪大道2001号,邮政编码：454003。E-mail： 302726195@qq.com

Applicability and mechanism of dual-tubing screen completion technology for Fukang Mining Area in Xinjiang

ZHANG Long^1,^2,^3,⁴(),WANG Yibing⁵,XIAN Bao’an^1,^2,^3,⁴(),ZHANG Yafei⁶,TAN Zhanglong⁶,HAERHENG Tuersong⁵,SUN Hao^1,^2,^3,⁴,WANG Guan^1,^2,^3,⁴,ZHANG Jintao^1,^2,^3,⁴

1. School of Resources and Environment, Henan Polytechnic University, Jiaozuo, Henan 454003, China
2. Collaborative Innovation Center of Coal Work Safety and Clean High Efficiency Utilization, Jiaozuo, Henan 454003, China
3. Henan International Joint Laboratory for Unconventional Energy Geology and Development, Jiaozuo, Henan 454003, China
4. Research Center of Coalbed Methane/Gas Geology and Engineering, Henan Polytechnic University, Jiaozuo, Henan 454003, China
5. Xinjiang Cleanseed New Energy Co., Ltd., Fukang, Xinjiang 831500, China
6. China United Coalbed Methane Co., Ltd., Beijing 100016, China

Received:2022-05-30 Online:2022-09-02 Published:2022-08-26
Contact: XIAN Bao’an E-mail:302726195@qq.com;759267753@qq.com

摘要/Abstract

摘要：

新疆阜康矿区煤储层具有煤层倾角大、厚度大、煤层多、构造复杂等特征,矿区煤层气规模开发进展缓慢,亟需寻找合适的煤层气地质工程一体化开发技术,为新疆煤层气开发提供有力支撑。双管柱筛管完井技术集完井增产一体化,已在沁水盆地推广应用超过400口煤层气水平井。双管柱筛管完井技术从水力冲击作用、清除煤粉、钻井液化学破胶、应力增渗等4个方面对煤层气水平井进行增产改造,助力阜康矿区煤层气高效开发。基于双管柱筛管完井技术特点,从储层煤体结构优势、储层渗透率恢复优势、储层孔裂隙拓展优势、储层构造优势4个方面论述了该技术对于阜康矿区煤层气开发的适用性与应用机理,对新疆类似储层地质条件下的煤层气高效开发具有指导和借鉴意义。

关键词: 煤层气, 阜康矿区, 双管柱, 筛管完井, 适应性研究

Abstract:

The coal reservoir in Fukang mining area of Xinjiang has different characteristics of large inclination angle, large thickness, multiple coal seams and complex structure, and the development progress of coalbed methane（CBM） in the mining area is slow. It is urgent to find a suitable integrated development technology for CBM geology engineering conditions to provide strong guidance for the development of CBM in Xinjiang. The dual-tubing screen completion technology integrates the completion and stimulation, and has promoted and applied more than 400 CBM horizontal wells in the Qinshui Basin. The dual-tubing screen completion technology has increased the production of CBM horizontal wells from four aspects, such as hydraulic impact, carrying pulverized coal, chemical gel breaking of drilling fluid, and stress permeation, so as to help the efficient development of CBM in Fukang mining area. Based on the technical characteristics of dual-tubing screen completion, the applicability and mechanism of this technology for the development of CBM in Fukang mining area is discussed from four advantages: reservoir coal body structure, reservoir permeability recovery, reservoir pore fracture expansion, and reservoir structure, and has guiding and reference significance for the efficient development of CBM under similar reservoir geological conditions in Xinjiang.

Key words: coalbed methane, Fukang mining area, dual-tubing, screen completion, adaptability study

中图分类号:

TE257

张龙,王一兵,鲜保安等. 新疆阜康矿区煤层气双管柱筛管完井机理与适用性研究[J]. 油气藏评价与开发, 2022, 12(4): 633-642.

Long ZHANG,Yibing WANG,Bao’an XIAN, et al. Applicability and mechanism of dual-tubing screen completion technology for Fukang Mining Area in Xinjiang[J]. Petroleum Reservoir Evaluation and Development, 2022, 12(4): 633-642.

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参考文献 34

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地层年代		地层符号	煤层编号	深度（m）	厚度（m）	煤体结构	稳定性	可采性
系	组	地层符号	煤层编号	深度（m）	厚度（m）	煤体结构	稳定性	可采性
侏罗系	西山窑组	J₂x¹	45	567.5	33.44	简单	稳定	局部可采
	八道湾组	J₁b³	A2	642.3	19.10	简单	较稳定	大部可采
		J₁b²	A5	815.9	12.40	简单	较稳定	大部可采
		J₁b¹	41	876.2	5.15	简单	稳定	局部可采
			42	904.6	26.54	简单	稳定	全区可采
			43	934.4	16.33	简单	稳定	大部可采

煤样区块	煤样取样地点	煤样类型	面割理密度（条/dm）	裂隙密度/（条/dm）	矿物充填情况
西部矿区	西山窑组45号煤层	半暗型和半亮型煤	4	30	局部充填
东部矿区	八道湾组煤层	半光亮型、亮煤	2	34	局部充填
中部矿区	八道湾组煤层	半光亮型、亮煤	2	20	大量充填

序号	破胶剂质量分数（%）	温度（℃）	表观黏度（mPa·s）						破胶率（%）
序号	破胶剂质量分数（%）	温度（℃）	0 min	1 min	2 min	3 min	5 min	10 min	破胶率（%）
1	0.000 1	15	12.50	1.75	1.75	1.75	1.25	1.00	92.0
2	0.000 1	15	13.50	3.00	2.50	1.75	1.75	1.50	88.9
3	0.000 1	15	13.75	3.00	2.50	1.75	1.75	1.75	87.3
4	0.000 1	15	13.50	3.00	2.50	1.50	1.50	1.50	88.9
平均值									89.3

样品编号	内压（MPa）	循环次数（次）	状态	总体积（mm³）	孔隙体积（mm³）	孔隙体积增加量（mm³）
1	15	15	实验前	75 638.20	244.99	40.78
1	15	15	实验后	75 638.20	285.77	40.78
2	7	1	实验前	69 416.92	762.29	201.65
2	7	1	实验后	69 416.92	963.94	201.65
3	9	5	实验前	72 176.23	118.43	40.68
3	9	5	实验后	72 176.23	159.11	40.68
4	9	10	实验前	75 039.65	1 981.81	155.30
4	9	10	实验后	75 039.65	2 137.11	155.30
5	12	15	实验前	75 212.96	1 938.00	85.82
5	12	15	实验后	75 212.96	2 023.82	85.82

新疆阜康矿区煤层气双管柱筛管完井机理与适用性研究

Applicability and mechanism of dual-tubing screen completion technology for Fukang Mining Area in Xinjiang

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