鄂西渝东区飞三段成岩作用与储层研究
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摘要
20世纪末，川东鲕滩气藏勘探取得重大突破，人们再一次意识到鲕滩储层含油气性的巨大潜力。鄂西渝东区下三叠统飞仙关组第三段(T_1f~3)鲕粒岩十分发育，且叠合成大面积分布，也成为人们研究的热点。本论文即围绕鲕滩储层这个中心，在对沉积环境与沉积相、成岩作用与孔隙演化以及储层基本特征等进行专题研究的基础上，力争对鄂西渝东区飞三段鲕滩储层作出综合评价与预测。
本论文首先分析了研究区飞三段的沉积特征与沉积环境，在合理建立沉积相模式的基础上重点研究了鲕粒滩(坝)的分布规律和空间展布特点；成岩作用是影响本区鲕滩储集性至关重要的控制因素，论文详细研究了储层在漫长地质历史过程中所经历的主要成岩事件及其对孔隙发育的影响，划分了成岩阶段与成岩演化次序，建立了孔隙演化模式并以建南构造为例进行了成岩相展布研究的尝试；最后还在鲕滩储层基本特征研究的基础上对飞三段储层进行综合评价与预测。此外，论文还就建南气田南、北高点的不同特征以及研究工区与川东地区鲕滩储集油气的差异性进行了简要的对比分析，以便进一步认识鲕滩储层的发育规律和形成机制，积极为今后的勘探部署提供依据。
Iff the end of the 20th century, a great breakthrough was made in the exploration
of the oolitic beach gas deposit in East Sichuan and the great gas-bearing potential
of the oolitic beach reservoir is realized once again. Owing to extensive distribution
of the oolite in T1f3 in West Hubei and East Chongqing, the oolitic beach reservoir
is becoming a focus to research in the region. Based on the monographic studies of
depositional environment and sedimentary facies, diagenesis and pore evolvement,
elementary characteristics of the reservoir, the paper endeavored to educe
comprehensive appreciation and forecast to oolitic beach reservoir in T1f3 in West
Hubei and East Chongqing.
The paper analyzed sedimentary characteristics and depositional environment in T1f3 this region firstly, and on the grounds of establishing logical deposit pattern gave emphasis to make a study of distributing laws and spreading traits of the oolitic beach. Because diagenesis is a vitally dominating factor that influenced oolitic beach reservoir nature in the region, the master diagenetic events of the reservoir in the lengthy geological history, as well as the influence to the pore abundance, was made a study of. The diagenetic stages and sequences were divided and the pore evolve pattern was established in the paper. In addition, the research on the spreading of the diagenetic facies was attempted to do at Jiannan structure. At last, through research on the oolitic beach reservoir characteristics in the region, the reservoir in T1f3 was comprehensively evaluated and predicted. Furthermore, the paper contrasted and analyzed the difference of the reservoir nature between the south high spot and the north high spot, as well as, between the region of interest and the East Sichuan so as to achieve more cognition on growing law and forming mechanism of the oolitic beach reservoir and try to provide logical opinions for the exploration and deployment for the future.
本论文首先分析了研究区飞三段的沉积特征与沉积环境，在合理建立沉积相模式的基础上重点研究了鲕粒滩(坝)的分布规律和空间展布特点；成岩作用是影响本区鲕滩储集性至关重要的控制因素，论文详细研究了储层在漫长地质历史过程中所经历的主要成岩事件及其对孔隙发育的影响，划分了成岩阶段与成岩演化次序，建立了孔隙演化模式并以建南构造为例进行了成岩相展布研究的尝试；最后还在鲕滩储层基本特征研究的基础上对飞三段储层进行综合评价与预测。此外，论文还就建南气田南、北高点的不同特征以及研究工区与川东地区鲕滩储集油气的差异性进行了简要的对比分析，以便进一步认识鲕滩储层的发育规律和形成机制，积极为今后的勘探部署提供依据。
Iff the end of the 20th century, a great breakthrough was made in the exploration
of the oolitic beach gas deposit in East Sichuan and the great gas-bearing potential
of the oolitic beach reservoir is realized once again. Owing to extensive distribution
of the oolite in T1f3 in West Hubei and East Chongqing, the oolitic beach reservoir
is becoming a focus to research in the region. Based on the monographic studies of
depositional environment and sedimentary facies, diagenesis and pore evolvement,
elementary characteristics of the reservoir, the paper endeavored to educe
comprehensive appreciation and forecast to oolitic beach reservoir in T1f3 in West
Hubei and East Chongqing.
The paper analyzed sedimentary characteristics and depositional environment in T1f3 this region firstly, and on the grounds of establishing logical deposit pattern gave emphasis to make a study of distributing laws and spreading traits of the oolitic beach. Because diagenesis is a vitally dominating factor that influenced oolitic beach reservoir nature in the region, the master diagenetic events of the reservoir in the lengthy geological history, as well as the influence to the pore abundance, was made a study of. The diagenetic stages and sequences were divided and the pore evolve pattern was established in the paper. In addition, the research on the spreading of the diagenetic facies was attempted to do at Jiannan structure. At last, through research on the oolitic beach reservoir characteristics in the region, the reservoir in T1f3 was comprehensively evaluated and predicted. Furthermore, the paper contrasted and analyzed the difference of the reservoir nature between the south high spot and the north high spot, as well as, between the region of interest and the East Sichuan so as to achieve more cognition on growing law and forming mechanism of the oolitic beach reservoir and try to provide logical opinions for the exploration and deployment for the future.
引文
【1】童崇光．四川盆地构造演化与油气聚集．第一版．北京：地质出版社，1992．
【2】饶荣标．西南地区地层总结．三叠系．地质部成都地质矿产研究所，1980．
【3】徐怀大、魏魁生等编译．层序地层学原理．第一版．北京：石油工业出版社，1993．
【4】冯增昭、鲍志东、李尚武等．中国南方早中三叠世岩相古地理．第一版．北京：石油工业出版社，1997．
【5】谢芳，范明祥等．川东飞仙关组碳酸盐岩储层预测技术及勘探目标评价．四川石油管理局地质调查处，1999．
【6】贾振远．碳酸盐岩沉积相和沉积环境．武汉：中国地质大学出版社，1989．
【7】冯增昭、王英华等．中国沉积学．第一版．北京：石油工业出版社，1994．
【8】强子同．碳酸盐岩储层地质学．第一版．山东东营：石油大学出版社，1998．
【9】林克湘、张昌民、雷卞军、刘怀波等．地面—地下对比建立储层精细地质模型．第一版．北京：石油工业出版社，1995．
【10】黄继祥等．川东嘉二段滩湘储层概念模式．第一版．成都：电子科技大学出版社，1995．
【11】刘泽容、信荃麟、王伟锋等．油藏描述原理与方法技术．第一版．北京：石油工业出版社，1993．
【12】江汉石油管理局．中扬子地区石炭系—三叠系下统有利储集层段沉积相(礁、滩相等)成岩作用与储集条件研究，1990．
【13】杨雨、王一刚等．川东飞仙关组岩相古地理与油气富集关系研究．四川石油管理局地质勘探开发研究院，1999．
【14】王一刚、刘划一等．四川石柱复向斜石炭系—三叠系储层预测评价研究报告．四川石油管理局地质勘探开发研究院，1995．
【15】王一刚、刘划一、文应初等．四川盆地东部飞仙关组鲕滩天然气成藏条件与有利勘探区块评价研究．中国石油西南油气天分公司勘探开发研究院，2002．
【16】曾学思等．试论四川盆地海相碳酸盐沉积展布规律及其石油地质意义．岩相古地理文集(2)．地质出版社，1986．
【17】李忠权、冉隆辉等．川东高陡构造成因地质模式与含油气性分析．成都理
工学院学报．2002，29(6)．
【18】沙庆安．关于滩相沉积．古地理学报．1999，1(3)．
【19】王新建、赵献文．川东飞三段鲕粒灰岩成岩作用与储集特征．天然气工业．1986，6(2)．
【20】文应初、王一刚等．四川盆地早三叠世飞仙关组碳酸盐台地增生与有利储集相带展布．天然气工业．1988，8(2)．
【21】王英华、刘本立等．氧、碳同位素组成与碳酸盐岩成岩作用．地质评论．1983，29(3)．
【22】王英华．碳酸盐岩成岩作用与孔隙演化．沉积学报．1992，10(3)．
【23】廖士范．关于碳酸盐岩(矿)成岩作用阶段划分、稳定同位素特征及表生阶段改造．沉积学报．1983，1(3)．
【24】王一刚、刘划一、文应初等．川东北飞仙关组鲕滩储层分布规律、勘探方法与远景预测．天然气工业．2002，22(增刊)．
【25】Marjorie A. chan. Oolitic Ironstone of Cretaceous Western Interior Seaway, East-Central Utah. Journal SEDIMENTARY PETROLOGY. July1992,62(4).
【26】Mazlan B. Hj. madon. Depositional Setting and origin of Berthierthierine Oolitic Ironstons in the Lower Miocene Terengganu shale, Teggol Ach, off shore Pehinsulsa Malaysia. SEDIMENTARY PETROLOGY. September 1992, 62(5).
【27】M.coniglio and N.P. James. Dolomitization of Deep-water sediments, Cow Head Group (cambro-ordovician), western Newfoundland.SEDIMENTARY PETROLOGY. November 1988, 58(6).
【28】George R. Pix. Patterns of burial-and tectonically controlled dolomitization in a upper Devonian fringing-reef complex: Leduc Formation, peace River Arch area, Alberta, Canda. SEDIMENTARY PETROLOGY. July 1993,63(4).
【2】饶荣标．西南地区地层总结．三叠系．地质部成都地质矿产研究所，1980．
【3】徐怀大、魏魁生等编译．层序地层学原理．第一版．北京：石油工业出版社，1993．
【4】冯增昭、鲍志东、李尚武等．中国南方早中三叠世岩相古地理．第一版．北京：石油工业出版社，1997．
【5】谢芳，范明祥等．川东飞仙关组碳酸盐岩储层预测技术及勘探目标评价．四川石油管理局地质调查处，1999．
【6】贾振远．碳酸盐岩沉积相和沉积环境．武汉：中国地质大学出版社，1989．
【7】冯增昭、王英华等．中国沉积学．第一版．北京：石油工业出版社，1994．
【8】强子同．碳酸盐岩储层地质学．第一版．山东东营：石油大学出版社，1998．
【9】林克湘、张昌民、雷卞军、刘怀波等．地面—地下对比建立储层精细地质模型．第一版．北京：石油工业出版社，1995．
【10】黄继祥等．川东嘉二段滩湘储层概念模式．第一版．成都：电子科技大学出版社，1995．
【11】刘泽容、信荃麟、王伟锋等．油藏描述原理与方法技术．第一版．北京：石油工业出版社，1993．
【12】江汉石油管理局．中扬子地区石炭系—三叠系下统有利储集层段沉积相(礁、滩相等)成岩作用与储集条件研究，1990．
【13】杨雨、王一刚等．川东飞仙关组岩相古地理与油气富集关系研究．四川石油管理局地质勘探开发研究院，1999．
【14】王一刚、刘划一等．四川石柱复向斜石炭系—三叠系储层预测评价研究报告．四川石油管理局地质勘探开发研究院，1995．
【15】王一刚、刘划一、文应初等．四川盆地东部飞仙关组鲕滩天然气成藏条件与有利勘探区块评价研究．中国石油西南油气天分公司勘探开发研究院，2002．
【16】曾学思等．试论四川盆地海相碳酸盐沉积展布规律及其石油地质意义．岩相古地理文集(2)．地质出版社，1986．
【17】李忠权、冉隆辉等．川东高陡构造成因地质模式与含油气性分析．成都理
工学院学报．2002，29(6)．
【18】沙庆安．关于滩相沉积．古地理学报．1999，1(3)．
【19】王新建、赵献文．川东飞三段鲕粒灰岩成岩作用与储集特征．天然气工业．1986，6(2)．
【20】文应初、王一刚等．四川盆地早三叠世飞仙关组碳酸盐台地增生与有利储集相带展布．天然气工业．1988，8(2)．
【21】王英华、刘本立等．氧、碳同位素组成与碳酸盐岩成岩作用．地质评论．1983，29(3)．
【22】王英华．碳酸盐岩成岩作用与孔隙演化．沉积学报．1992，10(3)．
【23】廖士范．关于碳酸盐岩(矿)成岩作用阶段划分、稳定同位素特征及表生阶段改造．沉积学报．1983，1(3)．
【24】王一刚、刘划一、文应初等．川东北飞仙关组鲕滩储层分布规律、勘探方法与远景预测．天然气工业．2002，22(增刊)．
【25】Marjorie A. chan. Oolitic Ironstone of Cretaceous Western Interior Seaway, East-Central Utah. Journal SEDIMENTARY PETROLOGY. July1992,62(4).
【26】Mazlan B. Hj. madon. Depositional Setting and origin of Berthierthierine Oolitic Ironstons in the Lower Miocene Terengganu shale, Teggol Ach, off shore Pehinsulsa Malaysia. SEDIMENTARY PETROLOGY. September 1992, 62(5).
【27】M.coniglio and N.P. James. Dolomitization of Deep-water sediments, Cow Head Group (cambro-ordovician), western Newfoundland.SEDIMENTARY PETROLOGY. November 1988, 58(6).
【28】George R. Pix. Patterns of burial-and tectonically controlled dolomitization in a upper Devonian fringing-reef complex: Leduc Formation, peace River Arch area, Alberta, Canda. SEDIMENTARY PETROLOGY. July 1993,63(4).
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