塔里木盆地阿-满过渡带超深层碳酸盐岩储层成因与分布预测  

Genesis and distribution prediction of the ultra-deep carbonate reservoirs in the transitional zone between the Awati and Manjiaer depressions,Tarim Basin

作　　者：何治亮[1,2] 云露[3] 尤东华 彭守涛 张宏[4] 王康宁 钱一雄[4] 焦存礼 张继标 HE Zhiliang;YUN Lu;YOU Donghua;PENG Shoutao;ZHANG Hong;WANG Kangning;QIAN Yixiong;JIAO Cunli;ZHANG Jibiao(Ministry of Science and Technology Development,SINOPEC,Beijing 100728,China;Key Laboratory of Shale Oil and Gas Exploration &Production,SINOPEC,Beijing 100083,China;Northwest Oilfield Branch,SINOPEC ,Urumqi 830011,China;Exploration &Production Research Institute,SINOPEC ,Beijing 100083,China)

机构地区：[1]中国石油化工股份有限公司科技开发部,北京100728 [2]中国石化页岩油气勘探开发重点实验室,北京100083 [3]中国石化西北油田分公司,新疆乌鲁木齐830011 [4]中国石油化工股份有限公司石油勘探开发研究院,北京100083

出　　处：《地学前缘》2019年第1期13-21,共9页Earth Science Frontiers

基　　金：国家自然科学基金项目(U1663209);国家科技重大专项(2017X05005);中国科学院A类战略性先导科技专项(XDAXX010200)

摘　　要：中国多旋回盆地超深层海相碳酸盐岩储层成因具有多因素联合控制与多阶段复合成因的总体特点。塔里木盆地阿-满过渡带北部地区超深层奥陶系鹰山组、一间房组之上存在相对完整的上奥陶统、志留系,几期不整合没有叠加且暴露时间相对较短,储层发育受控于沿断裂发生的深循环岩溶作用,主要沿断裂带分布。阿-满过渡带南部地区奥陶系超深层储层发育受控于走滑断裂活动强度、分段性及热液流体改造,分别形成了热液白云岩储层(古城墟隆起鹰山组下段)、热液流体交代形成的硅化岩储层(顺南斜坡区鹰山组上段)、热液流体改造形成的微生物岩储层(顺托-顺南地区一间房组)。基于断裂-流体主控型碳酸盐岩储层发育地质模式和针对性的地震采集、处理工作,通过叠前各向异性裂缝反演、多参数定量雕刻与叠后储层、裂缝预测技术及与应力场模拟的结合,可预测储层空间分布。The genesis of ultra-deep marine carbonate reservoirs in polycyclic basins in China is characterized by having multiple control factors and multistage hybrid origins.In the northern transitional zone between the Awati and Manjiaer depressions,the ultra-deep carbonate reservoirs of the Ordovician(in the Yingshan and Yijianfang Formations)are overlain by a relatively complete sequence of the Upper Ordovician and Silurian.Since there was no superimposition of multistage unconformities and the exposure period was relatively short,the reservoirs were formed by deep-circulation dissolution and distribute along the fault zones.The development of the ultra-deep Ordovician carbonate reservoirs in the southern transitional zone between the Awati and Manjiaer depressions is controlled by the strength and segmentation of strike-slip fault activity and hydrothermal fluid alteration.Hydrothermal alteration resulted in the formation of hydrothermal dolomite reservoir(in the lower Yingshan Formation in Guchengxu uplift),while hydrothermal metasomasis led to the silicified rock reservoir (in the upper Yingshan Formation in the Shunnan slope area).Hydrothermal alteration also led to the formation of microbial reservoir (in the Yijianfang Formation in the Shunnan to Shuntuo area).Reservoir distribution could be predicted by the geological model of fault-fluid dominated carbonate reservoirs,the specific seismic acquisition and processing,series of forward anisotropy fracture inversion,quantitative volume estimation,poststack seismic characterization,and simulation of tectonic stress field.

关 键 词：碳酸盐岩 超深层 储层成因 储层预测 阿-满过渡带 塔里木盆地 

分 类 号：P618.130.21[天文地球—矿床学]