中国石油海外岩性地层油气藏勘探进展与前景展望  

Exploration progress and outlook for lithostratigraphic reservoirs of CNPC overseas

作　　者：窦立荣[1,2] 李志 杨紫[1] 张兴阳[1] 康海亮[1] 张明军 张良杰[1] 丁梁波[3] DOU Lirong;LI Zhi;YANG Zi;ZHANG Xingyang;KANG Hailiang;ZHANG Mingjun;ZHANG Liangjie;DING Liangbo(PetroChina Research Institute of Petroleum Exploration&Development,Beijing 100083,China;China National Oil and Gas Exploration and Development Corporation,Beijing 100034,China;PetroChina Hangzhou Research Institute of Geology,Hangzhou 310023,China)

机构地区：[1]中国石油勘探开发研究院,北京100083 [2]中国石油国际勘探开发有限公司,北京100034 [3]中国石油杭州地质研究院,杭州310023

出　　处：《岩性油气藏》2023年第6期1-9,共9页Lithologic Reservoirs

基　　金：中国石油天然气股份有限公司科学研究与技术开发项目“海外重点含油气盆地评价与勘探关键技术研究”(编号:2021DJ31)资助。

摘　　要：通过中国石油走出去30年来海外大量勘探实例解剖,系统总结了岩性地层油气藏的勘探现状、分布特征和勘探模式,并指出了全球岩性地层油气藏的勘探前景及中国石油海外探区岩性地层油气藏的勘探潜力。研究结果表明:①全球岩性地层油气藏勘探经历了4个阶段,目前处于成熟发展阶段,大型深水沉积体和生物礁成为巨型岩性地层油气田发现的主要领域。②中国石油海外勘探新发现的岩性地层油气藏与全球岩性地层油气藏均主要分布在复合圈闭中,主要发育于前陆、裂谷和被动大陆边缘盆地,前者在裂谷盆地中发现的储量最多,前陆盆地次之,后者在前陆盆地中发现的储量最多,裂谷盆地次之。③中国石油海外实施构造和岩性地层油气藏同部署、同勘探策略,形成了3种特色高效的勘探模式,复式岩性地层油气藏立体勘探,发现了乍得邦戈尔盆地下组合高丰度岩性、高位潜山和低位潜山-岩性复合体油藏以及哈萨克斯坦南图尔盖盆地河道砂、扇三角洲、湖底扇和潜山等多类型岩性地层油气藏;复杂岩性体高精度三维地震勘探,发现了土库曼斯坦阿姆河盆地大型缓坡礁滩体气藏、巴西桑托斯盆地湖相礁滩体巨型油田以及缅甸若开次盆深水浊积砂岩生物气藏;薄层低幅度构造-岩性复合体地质工程一体化勘探,发现了南美奥连特盆地低幅度构造-岩性复合体油藏和中东阿曼次盆薄层礁滩体油藏。④全球岩性地层油气藏的勘探将从成熟探区拓展到低勘探程度的前沿领域、从陆上拓展到深水—超深水区,被动大陆边缘盆地深水沉积体、盆底扇和生物礁是岩性地层油气藏勘探的热点;裂岩盆地深层扇体、基岩潜山,前陆盆地和被动大陆边缘盆地礁滩体相关的复合圈闭是中国石油海外岩性地层油气藏勘探的主要对象,具有良好的前景。Through analyzing a large number of overseas exploration cases in the past 30 years of CNPC“going out”,the current exploration status,distribution characteristics and exploration models of lithostratigraphic reser‐voirs were systematically summarized,and the exploration potential of global lithostratigraphic reservoirs and outlook for lithostratigraphic reservoirs of CNPC overseas were pointed out.The results show that:(1)The ex‐ploration of global lithostratigraphic reservoirs has gone through four stages,and is currently in a mature stage of de‐velopment.The large-scale deep-water sediments and reefs have become the main areas for discovering giant lithostrati‐graphic oil and gas fields.(2)Lithostratigraphic reservoirs newly discovered by CNPC overseas exploration and global lithostratigraphic reservoirs are mainly distributed in composite traps,mainly developed in foreland,rift and passive continental margin basins,The former has the largest reserves found in rift basins,followed by fore‐land basin,while the latter has the largest reserves in foreland basin,rift basins was the second.(3)CNPC over‐seas has implemented the same deployment and integrated exploration strategy for structural and lithostrati‐graphic oil and gas reservoirs,forming three distinctive exploration models:Stereoscopic exploration for mul‐tiple lithostratigraphic reservoirs,discovered high abundance lithologic reservoirs in lower combination,high buried hill reservoirs and low buried hill-lithologic complex reservoirs in Bongor Basin of Chad,and channel,fan delta,subaqueous fan and buried hill reservoirs in South Turgai Basin of Kazakhstan;High resolution 3D seismic exploration for complex lithologic bodies,discovered large gentle slope reef-beach complex gas reser‐voirs in Amu Darya Basin of Turkmenistan,giant lacustrine reef-beach oil fields in Santos Basin of Brazil,and deep-water turbidite sandstone biogas reservoirs in Rakhine sub-basin of Myanmar;Geology and engineering in‐tegration exploration for thin layer

关 键 词：岩性地层油气藏 低位潜山-岩性复合体 深水沉积体 礁滩体 低幅度构造-岩性复合体 勘探模式 三维地震勘探 裂谷盆地 前陆盆地 中国石油海外油气勘探 

分 类 号：TE122[石油与天然气工程—油气勘探] P618.13[天文地球—矿床学]