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Characteristics of dolomite karstic reservoir in the Sinian Dengying Formation,Sichuan Basin

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Petroleum Research 2017年第1期2卷 13-24页

作者： xiuqin shan Jing Zhang Baomin Zhang Jingjiang Liu Hui Zhou Yongjun Wang Zhuowen Fu PetroChina Research Institute of Petroleum Exploration and Development Beijing100083China

The Sinian dolomite reservoir in Dengying Formation was developed extensively in the Sichuan Basin,and typically was the facies-controlled dolomite karstic *** development of this kind of the reservoir was related with the special deposits,diagenetic environment as well as the multi-phase and multi-type dissolution and fracturing *** arid-hot/dry paleo-climate was favourable to develop the large-scale microbial reef-shoal bodies and moundeshoal bodies,which was characterized by the organic framework and the sea floor hardening,thus forming primary matrix pore-type *** the background of the arid-hot/dry paleo-climate,the water-rock interaction was weak,the mineral stabilization process was slowly,and the vadose pisoliths,aragonite and high-magnesium calcite were well preserved,therefore,this diagenetic environment especially was beneficial for pore ***,the syngenetic and penecontemporaneous dissolution,especially three phases of weathered crust karstification due to three episodes of the Tongwan movement,led to further dissolution of spaces and form numerous non-fabric selective dissolution fractures and dissolution caves along faults and ***-phase fractures,especially the late Yanshanian-Himalayan tectonic fractures,resulted in connection among pores,vugs and dissolution caves,and improved quality of the reservoir tremendously.

关键词： Dolomite karstic reservoir Reservoir space Diagenetic environment Dissolution Tongwan movement Dengying Formation Sichuan Basin

Formation and evolution of intraplatform basin from the late Sinian to early Cambrian in Sichuan Basin,China

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Petroleum Research 2017年第1期2卷 41-53页

作者： Hui Zhou Wei Li Baomin Zhang Jingjiang Liu Shenghui Deng Shiben Zhang xiuqin shan Jing Zhang Xiaobo Wang Hua Jiang PetroChina Research Institute of Petroleum Exploration&Development Beijing 100083China

Based on the drilling,logging,seismic and outcrop data,the formation and evolution of the late Sinian to early Cambrian intraplatform basin in Sichuan Basin was *** the analysis of the total residual thickness of Member 3+Member 4 of Dengying Formation,the total thickness of Maidiping Formation+Qiongzhusi Formation,and lithofacies characteristics of Maidiping Formation,the distribution of the intraplatform basin was defined and its controlling effect on natural gas distribution of Dengying Formation was *** intraplatform basin was characterized by small total residual thickness of Member 3 and Member 4 of Dengying Formation,the large total thickness of Maidiping Formation and Qiongzhusi Formation,and the deep-water phosphorous-carbonaceous-siliceous mudstone in Maidiping ***,the intraplatform basin was mainly distributed in Qingchuan-Ziyang-Yibin area,and experienced four evolution *** the period of Member 1 and Member 2 of Dengying Formation,the Sichuan Basinwas a rimmed carbonate platform with the well developed mounds and shoals on the platform margin and its *** intraplatform basin in western Sichuan Basin was initially formed due to the first episode of Tongwan *** the period of Member 3 and Member 4 of Dengying Formation,the depositional center was formed in Moxi,Changning and Zhengxiong area due to extension and rifting of the Upper Yangtze Craton,thereafter,the Sichuan Basin evolved into a rimmed carbonate platform with an intraplatform *** second episode of Tongwan movement between Sinian and Cambrian led to the overall uplift and exposure of Sichuan Basin characterized by weathering denudation at high position and downward fluid erosion at low *** the period of Maidiping Formation,three lithofacies zones were developed horizontally,and the third episode of the Tongwan movement between Maidiping Formation and Qiongzhusi Formation modified the sedimentary geomorphology

关键词： Dengying Formation Source rock Dolomite Intraplatform basin Paleogeography Sichuan Basin

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古气候与古海洋对碳酸盐岩储集层发育的控制

石油勘探与开发 2014年第1期41卷 121-128页

作者：张静张宝民单秀琴中国石油勘探开发研究院

以中国塔里木、四川及鄂尔多斯盆地碳酸盐岩重点层系为例,探讨古气候背景与古海洋环境联合控制海相碳酸盐岩储集层发育的机制。对海相碳酸盐岩沉积和储集层形成而言,古气候总体上有干热/干燥与湿热/湿润之分;显生宙海水的地球化学成分... 详细信息

以中国塔里木、四川及鄂尔多斯盆地碳酸盐岩重点层系为例,探讨古气候背景与古海洋环境联合控制海相碳酸盐岩储集层发育的机制。对海相碳酸盐岩沉积和储集层形成而言,古气候总体上有干热/干燥与湿热/湿润之分;显生宙海水的地球化学成分曾发生明显的周期性变化,方解石海与文石海交替出现。塔里木、四川及鄂尔多斯等盆地的油气勘探实践表明,海相碳酸盐岩规模储集层的孔隙类型与发育特征明显受控于其沉积时的古气候背景与古海洋环境。干热/干燥古气候背景下的文石海环境最有利于形成孔隙-孔洞型白云岩储集层;干热/干燥古气候背景下的方解石海环境可形成以发育蒸发盐铸模孔为主的孔隙型白云岩储集层。湿热/湿润古气候背景下的方解石海和文石海沉积则主要形成大型溶洞型储集层。古气候背景与古海洋环境联合控制了碳酸盐岩的沉积并深刻影响了其成岩作用,最终决定了规模储集层的孔隙特征和储集层类型。

关键词：古气候背景古海洋环境方解石海文石海碳酸盐岩白云石化储集层

中国中西部盆地海相白云岩主要形成机制与模式

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地质通报 2017年第4期36卷 664-675页

作者：张静张宝民单秀琴中国石油勘探开发研究院北京100083

塔里木、四川及鄂尔多斯盆地是中国中西部海相白云岩的主要发育地区。三大盆地重点层系海相白云岩新近的成因研究表明,大规模准同生白云岩和埋藏成因白云岩的发育均与蒸发台地密切相关。蒸发台地中由海水浓缩形成的富Mg^(2+)卤水一方面... 详细信息

塔里木、四川及鄂尔多斯盆地是中国中西部海相白云岩的主要发育地区。三大盆地重点层系海相白云岩新近的成因研究表明,大规模准同生白云岩和埋藏成因白云岩的发育均与蒸发台地密切相关。蒸发台地中由海水浓缩形成的富Mg^(2+)卤水一方面在准同生期,通过蒸发泵和下渗机制交代碳酸钙沉积物而形成与蒸发岩共生的准同生白云岩,另一方面作为富含Mg^(2+)的地层孔隙水,在准同生-浅埋藏期乃至中、深埋藏期,通过侧向渗透、侧向与垂向压实排挤和垂向热对流机制与粗结构的碳酸钙沉积物发生交代反应,在蒸发岩系周边和上下形成广泛分布的埋藏成因白云岩。与热流体作用有关的白云石化主要依靠构造断裂、裂缝、不同级次的层序界面、孔洞层等输导体系发生,分布较局限。热流体云化常表现为对先期白云岩进行叠加改造而形成热水改造白云岩。热流体性质不一,可以是深埋藏混合热水、深部循环水、地幔深部的岩浆热液等。白云石(岩)的生物成因不仅表现为微生物作用导致白云石直接沉淀,还表现为生物的存在与活动为白云石化作用提供Mg^(2+)和云化流体通道。由微生物和宏观藻释放出Mg^(2+),在埋藏期对方解石进行交代是各种富含藻类的灰岩中部分白云石的重要形成机制。生物扰动可明显改善岩石的孔渗性,从而显著促进白云石化作用的发生。

关键词：海相白云岩白云石化云化机制云化模式

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沁水盆地煤层储集性能

石油与天然气地质 1998年第4期19卷 321-325页

作者：单秀琴石油勘探开发科学研究院廊坊分院

沁水盆地煤层孔隙分为５种类型，孔渗性较高，煤层吸附回线以密闭型为主，毛管压力曲线主要为裂隙孔隙型，孔隙分布以大孔为主，孔容及孔比表面积大，具中等吸附能力。因而该地区煤层储集性能较好，煤层气易于开采。

关键词：盆地煤层储集性孔隙吸附煤层气勘探

Observation and implication of the paleo-cave sediments in Ordovician strata of Well Lundong-1 in the Tarim Basin

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Observation and implication of the paleo-cave sediments in O...

利用包裹体分析鄂尔多斯盆地上古生界油气充注史与古流体势

中国科学院地质与地球物理研究所2013年度（第13届）学术年会

作者： SUN Shu ZHAO WenZhi ZHANG BaoMin LIU JingJiang ZHANG Jing shan xiuqin Institute of Geology and Geophysics Chinese Academy of Sciences Petro China Exploration & Production Company Petro China Research Institute of Petroleum Exploration & Development

Well Lundong-1 is located in the periclinal area on the eastern flank of the Tahe-Lunnan paleo-uplift in the Tarim Basin.A 25-m-high cave fill sequence was observed in the Upper Ordovician interval of the well at 6800-6825m.A third cut of cores was obtained from the top of the *** following conclusions were obtained by studying the cave sediments and depositional sequence,and by undertaking paleontological and elemental geochemistry *** cave sediments contain abundant brachiopod,gastropod,echinoderm,ostracod,and acritach fossils,which can be classified into two groups:cave autochthonous and cave allochthonous fossils(from collapse breccia dissolution or transportation by underflow).The fossils indicate that the cave was formed before the Carboniferous and partly-filled and buried during Carboniferous resubsidence.2. Elemental geochemistry shows that the mud that filled the cave is sourced from calcareous paleo-soil and weathered crust that came from a salty environment with poor water *** formation and evolution of the cave occurred in three stages The first stage occurred after the deposition of the Late Ordovician Lianglitage Formation,the second stage took place after the deposition of the Late Ordovician Sangtamu Formation,and the last stage happened after Silurian *** dissolution occurred in the latter two stages as a result of bedding-confined deep underflow *** on the reconstruction of the cave formation history,favorable paleokarst targets can be predicted and estimated to aid paleogeography and paleokarstology studies.

关键词： cave filling and depositional sequence cave autochthonous fossils cave allochthonous fossils bedding karst Well Lundong-1 Tarim Basin

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岩石学报 2007年第9期23卷 2303-2308页

作者：单秀琴陈红汉罗霞高嘉玉张英中国石油勘探开发科学研究院北京100083 中国地质大学武汉430074 中国石油勘探开发科学研究院廊坊分院河北廊坊065007

对鄂尔多斯盆地上古生界110块砂岩样品中流体包裹体进行了荧光、温度和流体势分析。系统分析表明,鄂尔多斯盆地上古生界天然气具有多阶连续性运聚特征,虽可划分6期,但应为多期充注一期成藏。各区块不断运移平衡连续成藏。不同时期流体... 详细信息

对鄂尔多斯盆地上古生界110块砂岩样品中流体包裹体进行了荧光、温度和流体势分析。系统分析表明,鄂尔多斯盆地上古生界天然气具有多阶连续性运聚特征,虽可划分6期,但应为多期充注一期成藏。各区块不断运移平衡连续成藏。不同时期流体势走向不尽相同,榆林、神木、乌审旗等地区为油气长期指向区。

关键词：包裹体油气成藏油气运移鄂尔多斯盆地

川西前陆盆地南部储层流体包裹体特征及其在天然气成藏研究中的应用

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石油与天然气地质 2005年第6期26卷 800-807页

作者：张莉柳广弟谢增业高嘉玉单秀琴中国石油大学石油天然气成藏机理教育部重点实验室北京100249 中国石油勘探开发研究院廊坊分院河北廊坊065007

川西前陆盆地南部邛西、平落坝及白马庙气田上三叠统原生气藏和侏罗系次生气藏储集层有机包裹体以气相、气液两相为主,形态多不规则,大小以3～6 μm为主,主要分布在石英颗粒裂隙及充填裂缝的方解石脉中.须家河组二段有机包裹体均一温度... 详细信息

川西前陆盆地南部邛西、平落坝及白马庙气田上三叠统原生气藏和侏罗系次生气藏储集层有机包裹体以气相、气液两相为主,形态多不规则,大小以3～6 μm为主,主要分布在石英颗粒裂隙及充填裂缝的方解石脉中.须家河组二段有机包裹体均一温度分布范围为60～170℃,主峰在90～130℃;侏罗系有机包裹体均一温度范围在70～130℃,主峰为80～100℃.根据均一温度测试结果,结合三叠系烃源岩演化史分析,须家河组二段气藏经历了印支晚期少量油气充注,燕山期的大量油气充注及喜马拉雅期的调整、少量充注的全过程,其主要充注时期为燕山期(侏罗纪-白垩纪).侏罗系气藏为次生气藏,主要充注时期为喜马拉雅期.通过恢复不同时期包裹体的古流体势,认为川西前陆盆地南部须家河组二段气藏流体势呈无序性.天然气运移以源、储之间的垂向运移为主,侧向运移不明显.

关键词：流体包裹体充注期次运移方向川西前陆盆地南部

鄂尔多斯盆地伊-陕斜坡山西组2段包裹体古流体压力分布及演化

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石油学报 2008年第2期29卷 226-230,234页

作者：刘建章陈红汉李剑胡国艺单秀琴陈雷中国地质大学资源学院湖北武汉430074 中国石油勘探开发研究院廊坊分院河北廊坊065007 中国石油长庆油田公司第一采油厂陕西延安716000

对鄂尔多斯盆地伊-陕斜坡上古生界太原组—山西组砂岩储层中流体包裹体样品进行了分析,将该储层中油气成藏划分为6个期次。结合埋藏史分析,确定了6期油气成藏发生的时间。运用流体包裹体PVT热动力学模拟的方法,获得了6期油气成藏时的古... 详细信息

对鄂尔多斯盆地伊-陕斜坡上古生界太原组—山西组砂岩储层中流体包裹体样品进行了分析,将该储层中油气成藏划分为6个期次。结合埋藏史分析,确定了6期油气成藏发生的时间。运用流体包裹体PVT热动力学模拟的方法,获得了6期油气成藏时的古压力数据。对山2段6期次古压力时空分布及演化规律分析表明,区域构造和热史演化是古压力的主要控制因素,可将古压力演化划分为气藏形成初期的常压—成藏高峰期超压—成蔽期后萎缩形成低压3个阶段。

关键词：鄂尔多斯盆地上古生界流体包裹体古压力分布热动力学模拟