吐哈盆地巴喀油田下侏罗统致密砂岩储层特征及主控因素分析
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摘要
运用层序地层手段,结合主要探井、地震资料,确定对比标志层;通过钻井、测井资料,划分基准面旋回,建立地层格架。通过关键井单井相、岩心观察和描述,编制综合井柱状图。经薄片鉴定、扫描电镜及X-衍射粘土矿物分析,认为储层颗粒整体较粗,胶结物含量低、成分成熟度和结构成熟度高,普遍含塑性岩屑、发育伊利石等多因素共同导致了储层的致密化。储集空间主要为粒间孔和粒内溶蚀孔。
By means of the sequence stratigraphy and combining with main exploratory wells and seismic data the comparative key bed was determined.The sedimentary base cycles was divided and the stratigraphic framework was established with the drilling and logging data.The columnar section of comprehensive well was made through the study of single-well phase of key wells,the observation and description of cores.By thin section authentication,electron microscopy scanning and X-ray diffraction of clay mineral analysis,the grain size of particles composed the reservoirs was quite coarse as a whole,and the low cement content,low compositional maturity and high textural maturity,generally with plastic debris,and the development of illite and many other factors led to the reservoir compaction.Accumulation capacity of the reservoirs mainly displays intergranular pores and intragranular dissolution pores.
By means of the sequence stratigraphy and combining with main exploratory wells and seismic data the comparative key bed was determined.The sedimentary base cycles was divided and the stratigraphic framework was established with the drilling and logging data.The columnar section of comprehensive well was made through the study of single-well phase of key wells,the observation and description of cores.By thin section authentication,electron microscopy scanning and X-ray diffraction of clay mineral analysis,the grain size of particles composed the reservoirs was quite coarse as a whole,and the low cement content,low compositional maturity and high textural maturity,generally with plastic debris,and the development of illite and many other factors led to the reservoir compaction.Accumulation capacity of the reservoirs mainly displays intergranular pores and intragranular dissolution pores.
引文
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[17]吴涛.吐鲁番—哈密盆地构造特征与油气聚集[J].石油学报,1996,17(3):10-15.WU Tao.The structural characteristics and hydrocarbon accumulation in Turpan-Hami coal-bearing basin[J].ACTA Pe-troleum SINICA,1996,17(3):10-15.
[18]吴涛.吐哈盆地油气田形成与分布[M].北京:石油工业出版社,1997.
[2]杨晓宁,张惠良,朱国华.致密砂岩的形成机制及其地质意义:以塔里木盆地英南2井为例[J].海相油气地质,2005,10(1):31-36.YANG Xiaoning,ZHANG Huiliang,ZHU Guohua.Formation mechanism and geological implication of tight sandstones:Acase of well YN-2in Tarim basin[J].Marine Origin Geology,2005,10(1):31-36.
[3]刘吉余,马志欣,孙淑艳.致密含气砂岩研究现状及发展展望[J].天然气地球科学,2008,19(3):316-319.LIU Jiyu,MA Zhixin,SUN Shuyan.Present research situation and prospect of tight gas sands[J].Natural Gas Geoscience.2008,19(3):316-319.
[4]董晓霞,梅廉夫,全永旺.致密砂岩气藏的类型和勘探前景[J].天然气地球科学,2007,18(3):351-355.DONG Xiaoxia,MEI Lianfu,QUAN Yongwang.Types of tight sand gas accumulation and its exploration prospect[J].Natu-ral Gas Geoscience,2007,18(3):351-355.
[5]康竹林.中国深层天然气勘探前景[J].天然气工业,2000,20(5):124.KANG Zhulin.The exploration prospect of deep gas in China[J].Natural Gas Industry.2000,20(5):124.
[6]董晓霞,梅廉夫,全永旺.致密砂岩气藏的类型和勘探前景[J].天然气地球科学,2007,18(3):351-355.Dong Xiaoxia,MEI Lianfu,QUAN Yongwang.Types of tight gas accumulation and its exploration prospect[J].Natural GasGeoscience,2007,18(3):351-355.
[7]姜振学,林世国,庞雄奇,等.两种类型致密砂岩气藏对比[J].石油实验地质,2006,28(3):211-219.JIANG Zhenxue,LIN Shiguo,PANG Xiongqi,et al.The comparion of two types of tight sand gas reservior[J].PetroleumGeology&Experiment.2006,28(3):211-219.
[8]赵文智,程克明,邹才能,等.吐哈盆地煤系地层油气聚集特征与勘探对策[J].天然气工业,1995,13(4):22-23.ZHAO Wenzhi,CHENG Keming,ZHOU Caineng,et al.Oil-gas accumulation features of coal measure stratain Tuhabasinand exploratory countermeasures[J].Natural Gas Industry,1995,13(4):22-23.
[9]贾会冲,张哨楠.鄂北塔巴庙地区上古生界储层发育的控制因素[J].天然气工业,2001,21(增):18-23.JIA Huichong,ZHANG Shaonan.Factors controlling growth of reserviors in upper Paleozoic at Tabamiao region in northErdos basin[J].Natural Gas Industry,2011,21(s):18-23.
[10]谢润成,周文,单钰铭,等.考虑岩样尺度效应时钻井液对岩石力学性质影响的试验评价[J].石油学报,2008,29(1):135-139.XIE Runcheng,ZHOU Wen,SHAN Yuming,et.al.Trial evaluation on drilling fluid and mechanical properties of rockwhile considering size of rock[J].Aata Petroleum Sinica,2008,29(1):135-139.
[11]周文,高雅琴,单钰铭,等.川西新场气田沙二段致密砂岩储层岩石力学性质[J].天然气工业,2008,28(2):34-37.ZHOU Wen,GAO Yaqin,SHAN Yuming,et al.Lithomechanical property of tight sand reserviors in the second member ofShaximiao formation in Xinchang gas field,west Sichuan basin[J].Natural Gas Industry,2008,28(2):34-37.
[12]WILKINSON M,HASZELDINE R S,ELLAM R M,et al.Hydrocarbon filling history from diagenetic evidence:BrentGroup,UK North Sea[J].Marine and Petroleum Geology,2004,21:443-455.
[13]VAN J D,SINGH A,WARD O P.Recent advances in petroleum microbiology[J].Microbiology and Molecular Biology Re-views,2003,67(4):503-549.
[14]WYATT A R.Relationship between continental area and elevation[J].Quarterly Journal of Geology Science of London,1979,136:175-186.
[15]PRICE N J.Fault and joint development in brittle and semi-brittle rock[M].London:Pergamon Press,1966.
[16]袁明生,梁世君,燕列灿,等.吐哈盆地油气地质与勘探实践[M].北京:石油工业出版社,2002.
[17]吴涛.吐鲁番—哈密盆地构造特征与油气聚集[J].石油学报,1996,17(3):10-15.WU Tao.The structural characteristics and hydrocarbon accumulation in Turpan-Hami coal-bearing basin[J].ACTA Pe-troleum SINICA,1996,17(3):10-15.
[18]吴涛.吐哈盆地油气田形成与分布[M].北京:石油工业出版社,1997.
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