鄂尔多斯盆地华庆地区致密砂岩油藏成藏条件研究  

Study on Accumulation Conditions of Tight Sandstone Reservoirs in Huaqing Area,Ordos Basin

作　　者：施砍园 庞雄奇[1,2] 王克[3,4] 牛思琪[1,2] Shi Kanyuan;Pang Xiongqi;Wang Ke;Niu Siqi(State Key Laboratory of Petroleum Resources and Prospecting,China University of Petroleum(Beijing),Beijing 102249,China;China University of Petroleum(Beijing),Beijing 102249,China;Xi′an Shiyou University,Xi′an,Shaanxi 710065,China;PetroChina Changqing Oilfield Company,Xi′an,Shaanxi 710018,China)

机构地区：[1]中国石油大学(北京)油气资源与探测国家重点实验室,北京102249 [2]中国石油大学(北京),北京102249 [3]西安石油大学,陕西西安710065 [4]中国石油长庆油田分公司,陕西西安710018

出　　处：《特种油气藏》2021年第6期20-26,共7页Special Oil & Gas Reservoirs

基　　金：国家自然科学基金“陆相页岩油含气性演化特征与成因机制及可动油评价方法”(41872148)。

摘　　要：针对鄂尔多斯盆地华庆地区长_(6)油层组砂岩非均质性强、物性差,严重制约勘探与开发的问题,综合运用石油地质学、沉积岩石学、成藏动力学等理论,通过钻井、录井、测井资料,结合多种测试分析数据,对研究区长_(6)油层组致密砂岩油藏成藏条件进行深入研究。研究结果表明,华庆地区B257井区长_(6)致密砂岩油藏成藏主要受优质的烃源岩、良好的储层与油藏特征共同控制。最终依据油层组的沉积背景、构造条件、储层条件、烃源岩条件和生产情况确定了2个有利勘探区域。研究结果为华庆地区B257井区长_(6)油层组致密砂岩油藏的勘探与开发指明了方向。In response to severe restrictions on exploration and development by high heterogeneity and poor physical properties of sandstone in Chang_(6) oil-bearing formation in Huaqing Area,Ordos Basin,the accumulation conditions of tight sandstone reservoirs in Chang_(6) oil-bearing formation in the study area were studied in depth according to the theories of petroleum geology,sedimentary petrology,and petroleum accumulation dynamics,in combination of various test and analysis data.The results of the study showed that the accumulative conditions of tight sandstone reservoirs in Chang_(6) oil-bearing formation in Well Block B257,Huaqing Area were controlled by high-quality source rocks,favorable reservoirs and reservoir characteristics.Finally,two favorable exploration areas were identified based on the sedimentary background,tectonic conditions,reservoir conditions,source rock conditions and production conditions of the oil-bearing formation.This study indicates the direction for the exploration and development of Chang_(6) tight sandstone reservoir in Well Block B257,Huaqing Area.

关 键 词：致密砂岩 低渗透油藏 成藏条件 华庆地区 鄂尔多斯盆地 

分 类 号：TE122.2[石油与天然气工程—油气勘探]