临兴低阻气藏高不动水饱和度成因及其对气层电阻率的影响

doi:10.7657/XJPG20230212

摘要/Abstract

摘要：

临兴气藏盒4段气层为具有工业产能的低阻气层，低阻气层的成因多样，气、水关系复杂，识别难度大。利用铸体薄片、扫描电镜、X射线衍射、核磁共振等技术手段，结合低阻气层测井响应特征，从微观和宏观2方面入手，探讨盒4段低阻气层高不动水饱和度成因及其对气层电阻率的影响。结果表明，赋存在绿泥石薄膜内部的微孔水为盒4段低阻气层高不动水饱和度的主要来源，绿泥石薄膜内部连通性强、含量高的不动水可使气层电阻率大幅下降。

关键词: 临兴气藏, 低阻气层, 不动水饱和度, 气层电阻率, 绿泥石薄膜, 微孔水, 数字岩心, 连通性

Abstract:

The gas layers in the He 4 member in the Linxing gas reservoir are low-resistivity gas layers with industrial productivity. These gas layers of diverse genesis exhibit complex gas-water relationship，making them difficult to be identified. By means of cast thin section，scanning electron microscopy (SEM)，X-ray diffraction (XRD) and nuclear magnetic resonance (NMR)，and combined with the logging response characteristics of low-resistivity gas layers，the high immobile water saturation in the low-resistivity gas layers in the He 4 member was analyzed for its genesis and impacts on gas layer resistivity from microscopic and macroscopic perspectives. The analysis results show that the microporous water within chlorite film is the main source of the high-saturation immobile water in the low-resistivity gas layers in the He 4 member. It is found that the high content of highly connected immobile water within the chlorite film can greatly reduce the resistivity of the gas layers.

Key words: Linxing gas reservoir, low-resistivity gas layer, immobile water saturation, gas layer resistivity, chlorite film, micropore water, digital core, connectivity

中图分类号:

TE122

刘再振, 李洋冰, 胡维强, 冷捷, 蔡瑞豪, 谢岚, 柳雪青. 临兴低阻气藏高不动水饱和度成因及其对气层电阻率的影响[J]. 新疆石油地质, 2023, 44(2): 217-223.

LIU Zaizhen, LI Yangbing, HU Weiqiang, LENG Jie, CAI Ruihao, XIE Lan, LIU Xueqing. High Immobile Water Saturation in Linxing Gas Reservoir: Genesis and Impacts on Gas Layer Resistivity[J]. Xinjiang Petroleum Geology, 2023, 44(2): 217-223.

图/表 9

图1

图2

图3

图4

图5

图6

图7

表1

表2

参考文献 25

[1]	林国松, 康凯, 郭富欣, 等. 渤海海域蓬莱油田低阻油层成因模式研究[J]. 特种油气藏, 2019, 26(3):68-73.
	LIN Guosong, KANG Kai, GUO Fuxin, et al. Low-resistivity reservoir genesis patterns of Penglai oilfield in Bohai sea[J]. Special Oil & Gas Reservoirs, 2019, 26(3):68-73.
[2]	梁卫, 闫正和, 杨勇, 等. 南海东部西江油田低阻油层识别及主控因素研究[J]. 特种油气藏, 2022, 29(1):10-14.
	LIANG Wei, YAN Zhenghe, YANG Yong, et al. Study on identification and main controlling factors of low-resistivity oil reservoirs in Xijiang oilfield,eastern South China sea[J]. Special Oil & Gas Reservoirs, 2022, 29(1):10-14.
[3]	司马立强, 吴丰, 赖未蓉, 等. 广安地区须家河组低阻气层形成机理[J]. 天然气工业, 2007, 27(6):12-14.
	SIMA Liqiang, WU Feng, LAI Weirong, et al. Formation mechanism of low-resistivity gas reservoirs in Xujiahe formation Guang’an area[J]. Natural Gas Industry, 2007, 27(6):12-14.
[4]	邱隆伟, 葛君, 师政, 等. 惠民凹陷商河地区沙三上亚段低阻油层特征及控制因素[J]. 新疆石油地质, 2017, 38(1):15-21.
	QIU Longwei, GE Jun, SHI Zheng, et al. Characteristics and controlling factors of low-resistivity reservoir of upper submember of Es3 in Shanghe area of Huimin sag[J]. Xinjiang Petroleum Geology, 2017, 38(1):15-21.
[5]	李俊, 张占松. S区块低电阻率油层成因分析与评价[J]. 岩性油气藏, 2011, 23(2):105-108.
	LI Jun, ZHANG Zhansong. Genetic analysis and evaluation of low resistivity reservoir in Block S[J]. Lithologic Reservoirs, 2011, 23(2):105-108.
[6]	赵永刚. 低阻气层测井识别和评价新方法:以鄂尔多斯盆地东胜气田为例[J]. 天然气工业, 2020, 40(9):47-54.
	ZHAO Yonggang. A new method for logging identification and evaluation of low-resistivity gas layers:a case study of the Dongsheng gasfield in the Ordos basin[J]. Natural Gas Industry, 2020, 40(9):47-54.
[7]	吕焕泽, 邹妞妞, 蔡宁宁, 等. 玛湖凹陷北斜坡百口泉组碳酸盐胶结物形成机理及其地质意义[J]. 新疆石油地质, 2022, 43(5):554-562.
	LYU Huanze, ZOU Niuniu, CAI Ningning, et al. Formation mechanism and geological significance of carbonate cements in Baikouquan formation on northern slope of Mahu sag[J]. Xinjiang Petroleum Geology, 2022, 43(5):554-562.
[8]	穆龙新, 田中元, 赵丽敏. A油田低电阻率油层的机理研究[J]. 石油学报, 2004, 25(2):69-73. doi: 10.7623/syxb200402014
	MU Longxin, TIAN Zhongyuan, ZHAO Limin. Investigation on mechanism of low-resistivity formation of A oilfield[J]. Acta Petrolei Sinica, 2004, 25(2):69-73. doi: 10.7623/syxb200402014
[9]	解宏伟, 田世澄, 胡平, 等. 准噶尔盆地低阻油气层成因及识别[J]. 新疆石油地质, 2008, 29(2):219-221.
	XIE Hongwei, TIAN Shicheng, HU Ping, et al. Identification and origin of low-resistivity oil-gas layers in Junggar basin[J]. Xinjiang Petroleum Geology, 2008, 29(2):219-221.
[10]	李枫凌, 徐士鹏, 刘涛, 等. WTK油田白垩系低阻油层成因及流体识别方法[J]. 新疆石油地质, 2022, 43(2):241-251.
	LI Fengling, XU Shipeng, LIU Tao, et al. Genesis and fluid identification method of Cretaceous low-resistivity oil layers in WTK oilfield[J]. Xinjiang Petroleum Geology, 2022, 43(2):241-251.
[11]	杨巍, 陈国俊, 张铭杰, 等. 鄂尔多斯盆地镇北地区长8油层组自生绿泥石对储集层物性的影响[J]. 岩性油气藏, 2012, 24(3):27-32.
	YANG Wei, CHEN Guojun, ZHANG Mingjie, et al. Influence of authigenic chlorite on reservoir properties of Chang 8 oil reservoirset in Zhenbei area,Ordos basin[J]. Lithologic Reservoirs, 2012, 24(3):27-32.
[12]	DURAND C, BROSSE E, CEREPI A. Effect of pore-lining chlorite on petrophysical properties of low-resistivity sandstone reservoir[J]. SPE Reservoir Evaluation & Engineering, 2001, 4(3):231-239.
[13]	HENN F, DURAND C, CEREPI A, et al. DC conductivity,cationic exchange capacity,and specific surface area related to chemical composition of pore lining chlorites[J]. Journal of Colloid and Interface Science, 2007, 311(2):571-578. doi: 10.1016/j.jcis.2007.02.062
[14]	TUDGE J, LOVELL M, DAVIES S, et al. A novel integrated approach to estimating hydrocarbon saturation in the presence of pore-lining chlorites[J]. Petroleum Geoscience, 2014, 20(2):201-209. doi: 10.1144/petgeo2013-044
[15]	EDO P, MOHD S I, SYAHRIR R. An integrated workflow to characterize and evaluate low resistivity pay and its phenomenon in a sandstone reservoir[J]. Journal of Geophysics & Engineering, 2017, 14(3):513-519.
[16]	朱家俊, 耿斌, 耿生臣, 等. 宏观导电机理下的泥质砂岩含水饱和度解释模型[J]. 石油勘探与开发, 2003, 30(4):75-77.
	ZHU Jiajun, GENG Bin, GENG Shengchen, et al. Water saturation explanatory model of argillaceous sandstone under the macroscopically electric conduction mechanism[J]. Petroleum Exploration and Development, 2003, 30(4):75-77.
[17]	赵虹, 党犇, 姚泾利, 等. 鄂尔多斯盆地姬塬地区延长组长2低阻油层成因机理[J]. 石油实验地质, 2009, 31(6):588-592.
	ZHAO Hong, DANG Ben, YAO Jingli, et al. Forming mechanism of Chang 2 low resistivity oil layer,Yanchang formation Jiyuan region,Ordos basin[J]. Petroleum Geology & Experiment, 2009, 31(6):588-592.
[18]	衡勇, 王勇飞, 刘成川, 等. 中江气田沙溪庙组河道砂岩气藏低阻气层成因[J]. 成都理工大学学报(自然科学版), 2020, 47(5):582-589.
	HENG Yong, WANG Yongfei, LIU Chengchuan, et al. Genesis of low-resistance gas reservoir in Shaximiao formation channel sandstone gas reservoirs of Zhongjiang gas field,Sichuan basin,China[J]. Journal of Chengdu University of Technology(Science & Technology Edition), 2020, 47(5):582-589.
[19]	冯渊, 秦康, 李二党, 等. 基于黏土矿物分析的低电阻率油层识别[J]. 新疆石油地质, 2020, 41(2):237-242.
	FENG Yuan, QIN Kang, LI Erdang, et al. Identification of low-resistivity oil layers based on clay mineral analysis[J]. Xinjiang Petroleum Geology, 2020, 41(2):237-242.
[20]	葛岩, 朱光辉, 万欢, 等. 鄂尔多斯盆地东缘紫金山侵入构造对上古生界致密砂岩气藏形成和分布的影响[J]. 天然气地球科学, 2018, 29(4):491-499.
	GE Yan, ZHU Guanghui, WAN Huan, et al. The influence of Zijinshan structural belt to the formation and distribution of tight sandstone gas reservoir in Upper Paleozoic,in the eastern Ordos basin[J]. Natural Gas Geoscience, 2018, 29(4):491-499.
[21]	段新国, 衡勇, 王洪辉, 等. 苏里格气田南区上古气藏低阻气层形成机理[J]. 成都理工大学学报(自然科学版), 2015, 42(4):427-434.
	DUAN Xinguo, HENG Yong, WANG Honghui, et al. Genetic mechanism of Upper Paleozoic low-resistivity gas reservoirs in south of Sulige gas field,Ordos basin,China[J]. Journal of Chengdu University of Technology(Science & Technology Edition), 2015, 42(4):427-434.
[22]	陈静, 郭涛, 朱龙权. 高泥质低阻碎屑岩储层含油饱和度评价方法[J]. 成都理工大学学报(自然科学版), 2019, 46(2):153-161.
	CHEN Jing, GUO Tao, ZHU Longquan. Evaluation of oil saturation for volcaniclastic rock reservoir with high shale content and low resistivity[J]. Journal of Chengdu University of Technology(Science & Technology Edition), 2019, 46(2):153-161.
[23]	刘再振, 葛岩, 陈鑫, 等. 临兴地区石盒子组低阻气层成因分析[J]. 断块油气田, 2020, 27(6):745-749.
	LIU Zaizhen, GE Yan, CHEN Xin, et al. Genesis analysis of the low-resistivity gas layer of Shihezi formation in Linxing area,Ordos basin[J]. Fault-Block Oil & Gas Field, 2020, 27(6):745-749.
[24]	廖明光, 唐洪, 苏崇华, 等. W低阻油藏高不动水饱和度的成因及对低阻油层的影响[J]. 石油实验地质, 2010, 32(4):353-361.
	LIAO Mingguang, TANG Hong, SU Chonghua, et al. Genesis of high immobile water saturation in the W low resistivity reservoirs and its influence on the low resistivity reservoir[J]. Petroleum Geology & Experiment, 2010, 32(4):353-361.
[25]	陈清华, 王正. 苏北盆地低电阻率油气层成因与识别[J]. 特种油气藏, 2008, 15(2):11-13.
	CHEN Qinghua, WANG Zheng. Origin and identification of low resistivity reservoirs in north Jiangsu basin[J]. Special Oil & Gas Reservoirs, 2008, 15(2):11-13.