准噶尔盆地腹部石南21井油藏再认识  

Recognition of the Reservoir in Well Shinan-21 of the Hinterland, Junggar Basin

作　　者：朱峰 瞿建华[2] 于宝利[1] 邓勇[1] 刘亚会 宋明星[2] ZHU Feng;QU Jianhua;Yu Baoli;DENG Yong;LIU Yahui;SONG Mingxing(Urumqi Branch, Geophysical Research Institute, BGP, CNPC, Urumqi, Xinjiang 830016, China;Research Institute of Exploration and Development, Xinjiang Oilfield Company, PetroChina, Karamay, Xinjiang 834000, China)

机构地区：[1]中国石油集团东方地球物理勘探有限责任公司研究院,乌鲁木齐830016 [2]中国石油新疆油田分公司勘探开发研究院,新疆克拉玛依834000

出　　处：《新疆石油地质》2017年第6期673-677,共5页Xinjiang Petroleum Geology

基　　金：国家科技重大专项(2017ZX05001);中国石油科技重大专项(2017E-0411)

摘　　要：继准噶尔盆地腹部石南21井中侏罗统头屯河组获得规模发现之后,后续勘探未获重大突破。通过对石南21井头屯河组油藏的重新分析后认为,输导断裂和岩性是制约油气勘探是否有重大发现的2大关键因素。通过对新部署高精度三维地震资料的精细解释,对输导断裂和岩性目标开展精细研究,基本落实了2期2组输导断裂的展布,沿基东凸起两翼发现多期坡折带,坡折带上倾方向泥岩整体遮挡,侧向分支河道分隔成藏,其中东翼受3期坡折带控制,发育多期超覆砂体,与断裂形成良好匹配,后续勘探规模较大,在此基础上开展岩性目标精细刻画,为下步钻探目标的落实提供依据。There is no significant follow-up breakthrough of exploration after the large scaled discovery has been gained in the Middle Jurassic Toutunhe formation of Well Shinan-21in the hinterland of Junggar basin.Through the re-analysis on the reservoir of Toutunhe formation in Well Shinan-21,it is considered that transporting fault and lithology are2key factors constraining oil and gas exploration.Based on the detailed interpretation of newly-deployed high-precision3D seismic data,the paper performs fine study of transporting fault and lithological targes and basically determines the distribution of2groups of transporting faults of2periods.Multiple periods of slope-break belts are discovered along the two flanks of Jidong swell and mudstone barrier is present in the up-dipping direction of the slope-break belts.Reservoirs formed in and separated by the underwater distributary channels.Controlled by the slope-break belts of3periods,multi-period overlapped sandbodies are developed in the eastern flank and match well with faults,resulting in large scale exploration in the future.The detailed characterization of lithological targets is carried out to provide basis for next drilling target determination.

关 键 词：准噶尔盆地 石南21井 头屯河组 输导断裂 成藏模式 拟声波波阻抗反演 

分 类 号：TE122[石油与天然气工程—油气勘探]