| 土库曼斯坦萨曼杰佩气田卡洛夫-牛津阶碳酸盐岩沉积-成岩系统 |
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| 引用本文： | 文华国,宫博识,郑荣才,刘合年,吴蕾,陈仁金,李世临,陈守春.土库曼斯坦萨曼杰佩气田卡洛夫-牛津阶碳酸盐岩沉积-成岩系统[J].吉林大学学报(地球科学版),2012(4):991-1002. |
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| 作者姓名： | 文华国 宫博识 郑荣才 刘合年 吴蕾 陈仁金 李世临 陈守春 |
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| 作者单位： | 成都理工大学油气藏地质及开发工程国家重点实验室/沉积地质研究院;中国石油(土库曼斯坦)阿姆河天然气公司;中国石油西南油气田分公司重庆气矿 |
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| 基金项目： | 国家科技重大专项(2008ZX05030-003-02);国家自然科学青年基金项目(41002033);成都理工大学中青年骨干教师培养计划项目(HG0092) |
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| 摘 要： | 以土库曼斯坦阿姆河盆地萨曼杰佩气田主力油、气产层卡洛夫-牛津阶碳酸盐岩为例,根据沉积相、成岩作用方式、成岩演化序列和相对应的地质作用产物特征,综合研究Fe、Mn、Sr微量元素,C、O、Sr稳定同位素,流体包裹体和阴极发光等地球化学特征反映的成岩环境和成岩流体性质。按"水文体制"将卡洛夫-牛津阶划分为不同成岩阶段的海水-淡水、压实卤水和深循环温压水3个成岩系统,认为沉积-成岩系统与储层在时空上具有良好的耦合关系,可归结为:台地边缘生物礁和浅滩相控制了储层的区域分布;早成岩阶段淡水系统溶蚀作用和压实卤水成岩系统的浅埋藏白云岩化作用是形成储层的基础;中成岩阶段的温压水成岩系统埋藏溶蚀作用、中-深埋藏白云石化作用和构造破裂作用扩大了储层规模,提高了储层质量,对优质储层发育贡献最大。
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| 关 键 词： | 沉积相 碳酸盐岩 储层 沉积-成岩系统 卡洛夫-牛津阶 萨曼杰佩气田 土库曼斯坦 |
Deposition and Diagenetic System of Carbonate in Callovian-Oxfordian of Samandepe Gasfield,Turkmenistan |
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| Wen Hua-guo,Gong Bo-shi,Zheng Rong-cai,Liu He-nian,Wu Lei,Chen Re-jin,Li Shi-lin,Chen Shou-chun.Deposition and Diagenetic System of Carbonate in Callovian-Oxfordian of Samandepe Gasfield,Turkmenistan[J].Journal of Jilin Unviersity:Earth Science Edition,2012(4):991-1002. |
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| Authors: | Wen Hua-guo Gong Bo-shi Zheng Rong-cai Liu He-nian Wu Lei Chen Re-jin Li Shi-lin Chen Shou-chun |
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| Institution: | 1.State Key Laboratory of Oil and Gas Reservior Geology and Exploitation,CDUT;Institute o f Sedimentary Geology/ Chengdu University of Technology;Chengdu 610059,China 2.China Petroleum Amu Darya Gas Corporation,Bagtiyarlyk 744000,Turkmenistan 3.Chongqing Gas District of Southwest Oil and Gas Company of CNPC,Chongqing 400021,China |
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| Abstract: | Taking for example the main oil and gas production formations of carbonate in Callovian-Oxfordian of Samandepe gas field,Amu Darya basin,Turkmenistan,and settings about the sedimentary facies,diagenesis means,diagenetic evolution sequence and corresponding products of geologic process,the authors make a comprehensive research on diagenetic environment and diagenetic fluid property reflected by the geochemical behavior,such as trace element,Fe,Mn,Sr,stable isotope,C,O,Sr,fluid inclusion,and cathode luminescence.According to the "hydrologic system",Callovian-Oxfordian are divided into three diagenetic system,seawater-freshwater,compaction brine and deep cycle temperature and pressure water in different diagenetic stage.The deposition and diagenetic system have a good coupling relationship with reservoir in the space and time,which can be classified as: ①Platform edge reef and shallow facies control the regional distribution of reservoir.②The early-denudation of fresh water system,and the shallow burial dolomitization of compaction brine diagenetic system in early-diagenetic stage are the key to forming reservoir.③Buried denudation of the diagenetic system of temperature and pressure water,middle-deep buried dolomitization and tectonic disruption action in mid-diagenetic stage enlarge the reservoir scale,promote the reservoir quality,and contribute greatly to the development of high-grade reservoir. |
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| Keywords: | sedimentary facies carbonatites reservoirs depositional and diagenetic system Callovian-Oxfordian Samandepe gas field Turkmenistan |
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