王勇飞,赵向原,刘成川
Wang Yong-fei,Zhao Xiang-yuan,Liu Cheng-chuan
摘要: 四川盆地东北部元坝地区是我国天然气勘探开发的重要区域。该区长兴组礁滩相储层天然裂缝普遍发育、控制因素复杂,是影响储层物性和气藏开采效果的关键因素。综合利用岩心、薄片、成像测井等资料,对该区长兴组储层天然裂缝的成因类型和发育特征进行了系统研究,在此基础上阐明了裂缝发育的主要控制因素。研究结果表明:①元坝地区长兴组礁滩相储层主要发育构造裂缝和成岩裂缝,根据力学性质构造裂缝可进一步划分为剪切裂缝和张性裂缝;成岩裂缝主要包括溶蚀裂缝、构造—溶蚀裂缝及压溶裂缝3类;②构造剪切裂缝为主要天然裂缝类型,裂缝走向以NW—SE向为主,主要为高角度裂缝和斜交裂缝,绝大多数裂缝高度小于30cm,裂缝总体有效性较好;③天然裂缝的发育主要受构造与应力、岩性、层厚和沉积微相等因素综合控制,受构造与应力影响,裂缝走向具有明显优势方位;白云岩类较灰岩类裂缝更为发育;高角度裂缝和斜交裂缝规模和发育程度受层厚控制明显;不同沉积微相中构造裂缝发育程度存在较大差异。
中图分类号:
[1]Ma Yongsheng,Mou Chuanlong,Tan Qinyin,et al.Reef bank features of Permian Changxing Formation and Triassic Feixianguan Formation in the Daxian-Xuanhan area,Sichuan Province,South China and constraint for the reservoirs of natural gas[J].Earth Science Frontiers,2007,14(1):182-192. 马永生,牟传龙,谭钦银,等.达县—宣汉地区长兴组—飞仙关组礁滩相特征及其对储层的制约[J].地学前缘,2007,14(1):182-192. [2]Long Shengxiang,Huang Renchun,Li Hongtao,et al.Formation mechanism of the Changxing Formation gas reservoir in the Yuanba Gas Field,Sichuan Basin,China[J].Acta Geologica Sinica:English Edition,2011,85(1):233-242. [3]Qian Kai,Li Benliang,Xu Huizhong.Discussing the marine prospects in Sichuan Basin according to the common geological characteristics of giant petroleum province on Paleozoic marine in the world[J].Natural Gas Geoscience,2003,14(3):167-171. 钱凯,李本亮,许惠中.从全球海相古生界油气田地质共性看四川盆地海相地层天然气勘探方向[J].天然气地球科学,2003,14(3):167-171. [4]Dai Jianquan.Exploration potential evaluation of the Changxing-Feixianguan Formation gas pool in Yuanba block of Northeast Sichuan,China[J].Journal of Chengdu University of Technology:Science & Technology Edition,2010,37(4):419-423. 戴建全.川东北元坝地区长兴组—飞仙关组气藏勘探潜力评价[J].成都理工大学学报:自然科学版,2010,37(4):419-423. [5]Chen Shengji,Xie Banghua,Wan Maoxia,et al.Source rock and resource potential of reef and shoal gas reservoirs in northern Sichuan Basin[J].Natural Gas Exploration Development,2007,30(4):1-5. 陈盛吉,谢邦华,万茂霞,等.川北地区礁、滩气藏的烃源条件与资源潜力分析[J].天然气勘探与开发,2007,30(4):1-5. [6]Hu Dongfeng.An exploration breakthrough of subtle gas reservoirs in the Yuanba area of the northern Sichuan Basin and its significance[J].Natural Gas Industry,2010,30(8):9-12. 胡东风.川东北元坝地区隐蔽气藏的勘探突破及其意义[J].天然气工业,2010,30(8):9-12. [7]Ma Yongsheng,Cai Xunyu.Exploration achievements and prospects[JP] of the Permian-Triassic natural gas in northeastern Sichuan Basin[J].Oil & Gas Geology,2006,27(6):741-750. 马永生,蔡勋育.四川盆地川东北区二叠系—三叠系天然气勘探成果与前景展望[J].石油与天然气地质,2006,27(6):741-750. [8]Ran Longhui,Xie Yaoxiang,Wang Lansheng.Understanding exploration of marine carbonate reservoirs in south China through Sichuan Basin[J].Oil & Gas Geology,2006,27(3):289-294. 冉隆辉,谢姚祥,王兰生.从四川盆地解读中国南方海相碳酸盐岩油气勘探[J].石油与天然气地质,2006,27(3):289-294. [9]Guo Tonglou.Reservoir characteristics and its controlling factors of the Changxing Formation reservoir in the Yuanba Gas Field,Sichuan Basin,China[J].Acta Petrologica Sinica,2011,27(8):2381-2391. 郭彤楼.元坝气田长兴组储层特征与形成主控因素研究[J].岩石学报,2011,27(8):2381-2391. [10]Wang Zhenghe,Deng Jian,Tan Qinyin,et al.Characteristics of typical sedimentary facies and their petrophysics of Changxing Formation in Yuanba district[J].Journal of Mineralogy and Petrology,2012,32(2):86-96. 王正和,邓剑,谭钦银,等.元坝地区长兴组典型沉积相及各相带物性特征[J].矿物岩石,2012,32(2):86-96. [11]Zhang Yun,Wu Jianmeng.Recognition of favorable facies belts in the Changxing Formation of the Yuanba area in the northeastern Sichuan Basin through logging data[J].Natural Gas Industry,2011,31(7):24-27. 张筠,吴见萌.测井资料划分川东北元坝地区长兴组有利相带[J].天然气工业,2011,31(7):24-27. [12]Feng Minggang,Yan Li,Wang Xueling,et al.Lower limit for physical property of effective reservoir in Changxing Formation,Yuanba Gas Field[J].Petroleum Geology & Experiment,2012,34(5):535-538. 冯明刚,严丽,王雪玲,等.元坝气田长兴组气藏有效储层物性下限标准研究[J].石油实验地质,2012,34(5):535-538. [13]Meng Wanbin,Wu Hengzhi,Li Guorong,et al.Dolomitization mechanisms and influence on reservoir development in the Upper Permian Changxing Formation in Yuanba area,northern Sichuan Basin[J].Acta Petrologica Sinica,2014,30(3):699-708. 孟万斌,武恒志,李国蓉,等.川北元坝地区长兴组白云石化作用机制及其对储层形成的影响[J].岩石学报,2014,30(3):699-708. [14]Zhao Xiangyuan,Hu Xiangyang,Zeng Lianbo,et al.Evaluation on the effectiveness of natural fractures in reef-flat facies reservoirs of Changxing Formation in Yuanba area,Sichuan Basin[J].Natural Gas Industry,2017,32(2):52-61. 赵向原,胡向阳,曾联波,等.四川盆地元坝地区长兴组礁滩相储层天然裂缝有效性评价[J].天然气工业,2017,32(2):52-61. [15]Fan Xiaojun,Peng Jun,Li Jixuan,et al.Fracture characteristics of ultra-deep reef-beach lithologic gas reservoirs in the Upper Permian Changxing Formation in Yuanba area,Northeastern Sichuan Basin[J].Oil & Gas Geology,2014,35(4):511-516. 范小军,彭俊,李吉选,等.川东北元坝地区上二叠统长兴组超深层礁滩岩性气藏中裂缝特征[J].石油与天然气地质,2014,35(4):511-516. [16]Wang Zhengrong,Deng Hui,Huang Runqiu.Three-dimensional inversion of geostress in Xinchang Gas Field,Western Sichuan Sag[J].Petroleum Geology & Experiment,2014,36(6):792-797. 王峥嵘,邓辉,黄润秋.川西凹陷新场气田三维地应力场反演分析[J].石油实验地质,2014,36(6):792-797. [17]Ni Xinfeng,Chen Hongde,Tian Jingchun,et al.Sedimentary framework of Changxing-Feixianguan Formations and its control on reservoiring in northeastern Sichuan Basin[J].Oil & Gas Geology,2007,28(4):458-465. 倪新锋,陈洪德,田景春,等.川东北地区长兴组—飞仙关组沉积格局及成藏控制意义[J].石油与天然气地质,2007,28(4):458-465. [18]Zhao Xiangyuan,Hu Xiangyang,Xiao Kaihua,et al.Characteristics and major control factors of natural fractures in carbonate reservoirs of Leikoupo Formation in Pengzhou area,western Sichuan Basin[J].Oil & Gas Geology,2018,39(1):30-39,152. 赵向原,胡向阳,肖开华,等.川西彭州地区雷口坡组碳酸盐岩储层裂缝特征及主控因素[J].石油与天然气地质,2018,39(1):30-39,152. [19]Feng Chong,Zou Huayao,Guo Tonglou.Late Permian early Triassic sedimentary evolution in Sichuan Basin and its significance on gas accumulation[J].Journal of Earth Sciences and Environment,2015,37(4):44-53. 冯冲,邹华耀,郭彤楼.四川盆地晚二叠世—早三叠世沉积演化及其对天然气富集的意义[J].地球科学与环境学报,2015,37(4):44-53. [20]Zeng Lianbo,Li Yuegang,Wang Zhengguo,et al.Type and sequence of fractures in the second member of Xujiahe Formation at the south of Western Sichuan Depression[J].Journal of China University of Geosciences,2007,32(2):194-200. 曾联波,李跃纲,王正国,等.川西南部须二段低渗透砂岩储层裂缝类型及其形成序列[J].中国地质大学学报,2007,32(2):194-200. [21]Xie Bing,Zhou Xiao,Tang Xueping,et al.Effectiveness evaluation of reef bank type reservoirs in the Longgang area of the Sichuan Basin[J].Natural Gas Industry,2011,31(7):28-31. 谢冰,周肖,唐雪萍,等.四川盆地龙岗地区礁滩型储层有效性评价[J].天然气工业,2011,31(7):28-31. [22]He Li,Luo Xiao,Liu Liping,et al.A discussion on depositional environment in Late Permian and distribution of reef-bank in Sichuan Basin[J].Natural Gas Industry,2008,28(1):28-32. 何鲤,罗潇,刘莉萍,等.试论四川盆地晚二叠世沉积环境与礁滩分布[J].天然气工业,2008,28(1):28-32. [23]Huang Yong,Zhang Hanrong,Fan Xiaojun.The controlling factors and character for biological pores of Changxing Formation in Yuanba area in Sichuan Basin[J].Journal of Southwest Petroleum University:Science & Technology Edition,2013,35(1):79-85. 黄勇,张汉荣,范小军.元坝地区长兴组生物孔隙特征及控制因素[J].西南石油大学学报:自然科学版,2013,35(1):79-85. [24]Guo Tonglou.Basic characteristics of deep reef-bank reservoirs and major controlling factors of gas pools in the Yuanba Gas Field[J].Natural Gas Industry,2011,31(10):12-16. 郭彤楼.元坝深层礁滩气田基本特征与成藏主控因素[J].天然气工业,2011,31(10):12-16. [25]Ma Yongsheng,Mou Chuanlong,Guo Xusheng,et al.Characteristic and framework of the Changxingian sedimentation in the northeastern Sichuan Basin[J].Geological Review,2006,52(1):25-29. 马永生,牟传龙,郭旭升,等.四川盆地东北部长兴期沉积特征与沉积格局[J].地质论评,2006,52(1):25-29. [26]Laubach S E,Olson J E,Gale J F W.Are open fractures necessarily aligned with maximum horizontal stress?[J].Earth & Planetary Science Letters,2004,222(1):191-195. [27]Peter C,John C.Prediction of fracture-induced permeability and fluid flow in the crust using experimental stress data[J].AAPG Bulletin,1999,83(5):757-777. [28]Zeng Lianbo,Li Xiangyang.Fractures in sandstone reservoirs with ultra-low permeability:A case study of the Upper Triassic Yanchang Formation in the Ordos Basin,China[J].AAPG Bulletin,2009,93(4):461-477. [29]Gale J F,Lander R H,Reed R M,et al.Modeling fracture porosity evolution indolostone[J].Journal of Structural Geology,2010,32(9):1201-1211. [30]Nelson R A,Moldovanyi E P,Matcek C C,et al.Production characteristics of the fractured reservoirs of the LaPaz Field,Maracaibo Basin,Venezuela[J].AAPG Bulletin,2000,84(11):1791-1809. [31]Narr W,Suppe J.Joint spacing in sedimentary rocks[J].Journal of Structural Geology,1991,13(9):1037-1048. |
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