Controlling effect of Shaximiao Formation fault on gas accumulation in eastern slope area of Western Sichuan Depression
-
摘要:
研究目的 川西坳陷东坡侏罗系沙溪庙组气藏常规构造优势区挖掘潜力已不大、对于勘探程度较低的复杂断裂夹持区的气藏地质认识明显滞后。
研究方法 基于近年来的勘探开发资料和数据，运用构造控藏理论，本文研究了断裂断面形态类型和流体势差对油气成藏的控制，探讨了断裂夹持区内的油气分布规律，总结了南北断裂系统油气富集的差异性。
研究结果 断裂断面形态中以坡坪式断裂所控制的河道油气充注程度高、有利于高效成藏，低角度铲式断裂次之，高角度平直-铲式断裂成藏性最差；流体势差使得烃源岩天然气途径高势区向远距离砂体充注困难；断裂夹持区虽然在较窄的两端裂缝网络发育导致油气逸散很难成藏，但较宽的中部若由坡坪式断裂和低角度铲状断裂夹持输导则可形成相对较好的油气富集带。
结论 综合认为南部构造总体上优于北部、中部夹持区具有一定潜力，成藏的关键因素仍然受断裂形态特征和输导能力的控制。
Abstract:This paper is the result of oil and gas exploration engineering.
Objective The exploration potential of conventional structural advantage area of gas reservoir in Jurassic Shaximiao Formation in the eastern slope of western Sichuan depression is not great, and the geological understanding of the gas reservoir in the complex fault clamping area with low degree of exploration is obviously lagging behind.
Methods Based on the data in exploration and developent in recent years, using the theory of structural reservoir control, this paper studies the control of fault section morphology type and fluid potential difference on oil and gas accumulation, discusses the oil and gas distribution in the fault clamping area, and summarizes the difference of oil and gas enrichment in the north-south fault system.
Results The study shows that the river channel controlled by slope-flat fault has a high degree of oil and gas filling, which is conducive to high-efficiency reservoir formation, followed by low-angle shovel-like fault, and high-angle flat shovel-like fault has the worst reservoir formation.
Conclusions Fluid potential difference makes it difficult for hydrocarbon source cliff gas to fill long-distance sand bodies through high potential areas. Although it is difficult to form reservoirs due to the escape of oil and gas in the development of a narrow fracture network at both ends of the fracture clamping area, a relatively good oil and gas enrichment zone can be formed in the wider middle if the slope-flat fault and low-angle shovel-like fault are clamped and transported together.Therefore, it is believed that the structure in the south is superior to that in the northern and central clamping areas and has certain potential. The key factors of reservoir formation are still controlled by the fracture morphology and transportation capability.
-
-
Chen Dongxia, Wang Lei, Pang Xiongqi, Guo Yingchun, Luo Xiao, Xie Mingxian, Wang Congwei. 2013. The controlling of fault on the tight sandstone gas migration and accumulation in West Sichuan Depression[J]. Geosience, 27(5): 1137-1146(in Chinese with English abstract)
Childs C S, Moriya S, Morewood N. 2009. Calibrating fault seal using hydrocarbon migration model of the Osebergsyd area, Viking graben[J]. Marine and Petroleum Geology, 26: 764-774 doi: 10.1016/j.marpetgeo.2008.05.004
Leng Jigao, Li Shubing, Yang Changing. 2011. Determination of the time of gas accumulation in the Xujiahe Formation of Xiaoquan-Fenggu structural belt western Sichuan depresstion through fluid inclusion analysis[J]. Natural Gas Industry, 3(18): 38-42(in Chinese with English abstract).
Li Guoxin, Xu Shenglin, Chen Hongde. 2012. Sedimentary facies and sand body distribution of the Middle Jurassic Upper Shaximiao Formation in the middle segment of western Sichuan depression[J]. Geology in China, 39(1): 96-102(in Chinese with English abstract).
Li Zhongping, Ran Lingbo, Li Huaji, Liu Feng, Zhou Wenya, Xiang Yu. 2016. Fault features and enrichment laws of narrow-channel distal tight sandstone gas reservoirs: A case study of the Jurassic Shaximiao Fm gas reservoir in the Zhongjiang Gas Field, Sichuan Basin[J]. Natural Gas Industry, 36(7): 1-7(in Chinese with English abstract)
Liu Shugen, Luo Zhili, Zhao Xikui, Xu Guosheng, Wang Guozhi, Zhang Chengjiang. 2003. Coupling relationships of sedimentary basin-orogenic belt system sand their dynamie models in West China——A case study of the Longmenshan orogenic belt in West Sichuan foreland basin system[J]. Geological Journal, 77(2): 177-186(in Chinese with English abstract)
Lu Zhengxiang, Ye Sujuan, Qing Chun, Yang Kaizheng. 2000. Characteristics and evaluation of the upper reservoir of Shaximiao Formation in Xiaoquan gas field in West Sichuan[J]. Natural Gas Industry, 5(20): 15-17(in Chinese with English abstract).
Luo Xiaoquan, Chen Lan. 2004. Relationship between distribution characteristic of faults fractures and oil-gas reservoirs in west Sichuan[J]. Petroleum Geology and Recovery Efficiency, 1(11): 16-19(in Chinese with English abstract).
Nan Hongli, Cai Limei, Ye Sujuan, Yan Lini, Zhang Shihua, Yang Yingtao. 2018. Coupling relationship between reservoir densification and natural gas accumulation in Shaximiao Formation in Western Sichuan Depression[J]. Xinjiang Petroleum Geology, 39(4): 439-445(in Chinese with English abstract)
Qian Lijun, Zhang Chenggong, Chen Hongde. 2013. Jurassic sedimentary transformation event recorded by detrital components in the middle part of western Sichuan[J]. Geology in China, 40(2): 517-526(in Chinese with English abstract).
Tang Dahai, Chen Hongbin, Xie Jirong, Luo Yuanping, Cao Shichang. 2005. Reservoir forming conditions of Jurassic Shaximiao Formation, West Sichuan Basin[J]. Gas Exploration & Development, 3(28): 14-19(in Chinese with English abstract).
Wang Jinqi. 2001. Early accumulation and late seal—the basic character of gas reservoirs in west Sichuan depression[J]. Natural Gas Industry, 1(21): 5-12(in Chinese with English abstract).
Wang Shuaicheng, Wang Duoyi, Chen Min, Liu Dengli, Chen Wei, Cheng Liu. 2010. Natural gas reservoir-formation condition of Shaximiao Formation in mid-band of western Sichuan depression[J]. Offshore Oil, 3(30): 42-46(in Chinese with English abstract).
Wang Wei, Xu Guosheng, Cui Jianwei, Liao Yisha. 2007. Gas reservoirs forming character in Shaximiao Formation, Luodai gas field, Chuanxi depression[J]. Petroleum Geology and Recovery Efficiency, 5(14): 39-41(in Chinese with English abstract).
Xu Min, Liu Jian, Lin Xiaoyun, Xiong Shan, Niu Binli. 2018. Evolution model for the gas reservoirs in the Shaximiao Formation eastern slope of the Western Sichuan Depression[J]. Geosience, 32(5): 953-962(in Chinese with English abstract)
Yang Fan, Sun Zhun, Zhao Shuang. 2011. Accumulation conditions and controlling factors of Shaximiao Formation, Huilong area, western Sichuan depression[J]. Experimental Petroleum Geology, 6(33): 569-573(in Chinese with English abstract).
Yang Keming, Ye Jun, Lu Zhengxiang. 2005. Chronological characteristics of Upper Triassic reservoirs in western Sichuan depression[J]. Oil & Gas Geology, 2(26): 208-213(in Chinese with English abstract).
Ye Jun, Zhu Tong, Zhao Zejiang. 1998. A study of gas eeserviors of Upper Shaximiao Formation (J2s) and its origin in Xinchang gas Field, West Sichuan[J]. Experimental Petroleum Geology, 4(20): 332-338(in Chinese with English abstract).
Ye Sujuan, Li Rong, Zhang Shihua. 2014. Chemical characteristics of Jurassic formation water and its relationship with hydrocarbon migration and accumulation in middle part of western Sichuan Depression[J]. Experimental Petroleum Geology, 36(4): 487-489(in Chinese with English abstract).
Yue Dongming, Wang Xin. 1999. Simple analysis on the effectiveness of the Middle and Late Yanshanian tectonic traps in the west Sichuan depression[J]. Experimental Petroleum Geology, 2(2): 128-131(in Chinese with English abstract).
Zeng Yan, Li Huaji, Zhou Wenya, Chen Jun, Wu Dongsheng. 2017. High-yield enrichment laws of Shaximiao Formation tight sandstone gas reservoir of complex "narrow" channel in Zhongjiang Gas Field, in the eastern slope of West Sichuan Depression[J]. Gas Exploration & Development, 40(4): 1-8(in Chinese with English abstract)
Zheng Rongcai, Peng Jun, Gao Hongcan, Ke Guangming. 2003. Analysis of fracture active stages, heat fluid nature and the process of forming reservoir in western Sichuan sag[J]. Journal of Chengdu University of Technology, 6(30): 551-557 (in Chinese with English abstract).
陈冬霞, 王雷, 庞雄奇, 郭迎春, 罗潇, 谢明贤, 王从玮. 2013. 断裂对川西坳陷致密砂岩气藏天然气运聚的控制作用[J]. 现代地质, 27(5): 1137-1146. doi: 10.3969/j.issn.1000-8527.2013.05.016
冷济高, 李书兵, 杨长清. 2011. 利用流体包裹体确定川西坳陷孝泉—丰谷构造带须家河组天然气成藏期[J]. 天然气工业, 3(18): 38-42. https://www.cnki.com.cn/Article/CJFDTOTAL-TRQG201108010.htm
李国新, 徐胜林, 陈洪德. 2012. 川西坳陷中段中侏罗统上沙溪庙组层序岩相古地理及砂体展布特征[J]. 中国地质, 39(1): 96-102 http://geochina.cgs.gov.cn/geochina/article/abstract/20120110?st=search
李忠平, 冉令波, 黎华继, 刘凤, 周文雅, 向宇. 2016. 窄河道远源致密砂岩气藏断层特征及天然气富集规律——以四川盆地中江气田侏罗系沙溪庙组气藏为例[J]. 天然气工业, 36(7): 1-7. https://www.cnki.com.cn/Article/CJFDTOTAL-TRQG201607002.htm
刘树根, 罗志立, 赵锡奎, 徐国盛, 王国芝, 张成江. 2003. 中国西部盆山系统的耦合关系及其动力学模式——以龙门山造山带—川西前陆盆地系统为例[J]. 地质学报, 77(2): 177-186. doi: 10.3321/j.issn:0001-5717.2003.02.005
罗啸泉, 陈兰. 2004. 川西拗陷形成演化及其与油气的关系[J]. 油气地质与采收率, 1(11): 16-19 https://www.cnki.com.cn/Article/CJFDTOTAL-YQCS200401008.htm
吕正祥, 叶素娟, 卿淳, 杨开珍. 2000. 川西孝泉气田沙溪庙组上部储层特征及评价[J]. 天然气工业, 5(20): 15-17. https://www.cnki.com.cn/Article/CJFDTOTAL-TRQG200005005.htm
南红丽, 蔡李梅, 叶素娟, 阎丽妮, 张世华, 杨映涛. 2018. 川西坳陷沙溪庙组储集层致密化与天然气成藏耦合关系[J]. 新疆石油地质, 39(4): 439-445. https://www.cnki.com.cn/Article/CJFDTOTAL-XJSD201804009.htm
钱利军, 张成弓, 陈洪德. 2013. 川西中段地区砂岩碎屑组分变化记录的沉积转型事件[J]. 中国地质, 40(2): 517-526. doi: 10.3969/j.issn.1000-3657.2013.02.016 http://geochina.cgs.gov.cn/geochina/article/abstract/20130216?st=search
唐大海, 陈洪斌, 谢继荣, 罗远平, 曹世昌. 2005. 四川盆地西部侏罗系沙溪庙组气藏成藏条件[J]. 天然气勘探与开发, 3(28): 14-19. https://www.cnki.com.cn/Article/CJFDTOTAL-TRKT200503003.htm
王金琪. 2001. 早聚晚藏——川西坳陷天然气基本特征[J]. 天然气工业, 1(21): 5-12. https://www.cnki.com.cn/Article/CJFDTOTAL-TRQG200101001.htm
王帅成, 王多义, 陈敏, 刘登丽, 陈伟, 程留. 2010. 川西坳陷中段沙溪庙组天然气成藏条件分析[J]. 海洋石油, 3(30): 42-46. https://www.cnki.com.cn/Article/CJFDTOTAL-HYSY201003011.htm
王威, 徐国盛, 崔建伟, 廖义沙. 2007. 川西坳陷洛带气田沙溪庙组天然气成藏规律[J]. 油气地质与采收率, 5(14): 39-41. https://www.cnki.com.cn/Article/CJFDTOTAL-YQCS200705013.htm
徐敏, 刘建, 林小云, 熊山, 牛斌莉. 2018. 川西坳陷东坡沙溪庙组气藏成藏演化模式[J]. 现代地质, 32(5): 953-962. https://www.cnki.com.cn/Article/CJFDTOTAL-XDDZ201805008.htm
杨帆, 孙准, 赵爽. 2011. 川西坳陷回龙地区沙溪庙组成藏条件及主控因素分析[J]. 石油实验地质. 6(33): 569-573. https://www.cnki.com.cn/Article/CJFDTOTAL-SYSD201106005.htm
杨克明, 叶军, 吕正祥. 2005. 川西坳陷上三叠统成藏年代学特征[J]. 石油与天然气地质, 2(26): 208-213. https://www.cnki.com.cn/Article/CJFDTOTAL-SYYT200502013.htm
叶军, 朱彤, 赵泽江. 1998. 川西新场气田上沙溪庙组(J2S)气藏储集体特征及形成机理研究[J]. 石油实验地质, 4(20): 332-338. https://www.cnki.com.cn/Article/CJFDTOTAL-SYSD804.003.htm
叶素娟, 李嵘, 张世华. 2014. 川西坳陷中段侏罗系次生气藏地层水化学特征及与油气运聚关系[J]. 石油实验地质, 36(4): 487-489. https://www.cnki.com.cn/Article/CJFDTOTAL-SYSD201404016.htm
岳东明, 王信. 1999. 浅析川西坳陷燕山中、晚期构造圈闭的有效性[J]. 石油实验地质, 2(2): 128-131. https://www.cnki.com.cn/Article/CJFDTOTAL-SYSD902.005.htm
曾焱, 黎华继, 周文雅, 陈俊, 吴东胜. 2017. 川西坳陷东坡中江气田沙溪庙组复杂"窄"河道致密砂岩气藏高产富集规律[J]. 天然气勘探与开发, 40(4): 1-8. https://www.cnki.com.cn/Article/CJFDTOTAL-TRKT201704002.htm
郑荣才, 彭军, 高红灿, 柯光明. 2003. 川西坳陷断裂活动期次、热流体性质和油气成藏过程分析[J]. 成都理工大学学报, 6(30): 551-557. https://www.cnki.com.cn/Article/CJFDTOTAL-CDLG200306001.htm
-
下载:
图(12)
表(1)
计量
- 文章访问数: 1093
- PDF下载数: 4
- 施引文献: 0