原生油藏调整过程的有机地球化学与岩石学证据——由乡3井看哈得逊油田的调整机制  

Evidence of the organic geochemistry and petrology for the adjustment process of primary reservoir: Insight into the adjustment mechanism of Hadexun oil field visa Xiang-3 Well

作　　者：苏劲[1,2] 张水昌[1,2] 杨海军[3] 朱光有[1,2] 米敬奎[1,2] 肖中尧[3] 

机构地区：[1]中国石油勘探开发研究院,北京100083 [2]提高石油采收率国家重点实验室,北京100083 [3]中国石油天然气集团公司塔里木油田分公司,库尔勒841000

出　　处：《岩石学报》2011年第6期1886-1898,共13页Acta Petrologica Sinica

基　　金：国家自然科学基金项目(40602016;40773032);中国石油科技研究项目(2008A-0600)联合资助

摘　　要：塔里木盆地发育多期构造旋回,新构造运动活跃,呈现多期成藏晚期为主的特点,因此海相调整型油气藏成为塔里木盆地油气勘探的重要领域。为了研究调整型油气藏的成藏规律和机理,定量评价油气调整规模,以哈得逊油田为例开展了储层沥青反射率、生物标记化合物、包裹体和伊利石等方面的研究,表明曾有两期油到达过东河砂岩。根据两大关键时期古构造演化和圈闭发育史建立了哈得逊"两期充注,晚期调整"的油气成藏模式,晚期形成的圈闭与原生油藏的构造关系是调整型油气藏聚集的主控因素。针对原生油藏乡3构造,通过系统选取东河砂岩和奥陶系良里塔格组的储层样品,经过连续抽的前处理区分出古油藏和现今油藏的抽提物,并进行了三维荧光强度扫描,定量评价出乡3构造奥陶系古油柱高度调整了20m左右,指示了原生油藏调整规模不容忽视,具有形成次生调整型油气藏的较大潜力。Development of multi-phase tectonic cycles in Tarim Basin,the new active tectonic movement,showing a more advanced based on the characteristics of accumulation,so adjust the type of marine oil and gas exploration oil and gas reservoirs become an important area of the Tarim Basin.In order to study the adjustment of oil gas accumulation in law and mechanism,quantitative evaluation of oil and gas to adjust the scale to carry out the Hudson oilfield reservoir bitumen reflectance,biomarkers,inclusions and authigenic illite.The research that has two of oil reached over the East River sandstone.According to the ancient period of two key structural evolutions and the history of trap development,it was established the ‘two-stage charging,late adjustments’ in the oil and gas accumulation mode of Hadexun oilfield.The formation of the trap and the late primary reservoir is adjustable between the constructions of reservoirs the main control factors together.Xiang-3 primary reservoir for the village structure,the system samples selected from the East River sandstone and Lianglitage reservoirs in the Ordovician,after continuous pumping out of the ancient distinction between pre-treatment reservoir and extracts of the present reservoir,and the three dimensional fluorescence scanning,Xiang-3 quantitative evaluation of the Ordovician tectonic oil column of about 20m height adjustment,indicating that the primary reservoir to adjust the scale can not be ignored,with the formation of secondary larger adjustable reservoir potential.

关 键 词：沥青反射率 生物标记物 稳定碳同位素 三维荧光 调整型油气藏 塔里木盆地 

分 类 号：P618.130.2[天文地球—矿床学]