陆相页岩层系石油富集区带优选、甜点区段评价与关键技术应用  

Optimization of enrichmentplays,evaluation of sweet area§ion and application of key technologies for the continental shale strata oil in China

作　　者：杨智[1] 唐振兴[2] 李国会[3] 贾希玉[4] 吴颜雄 陈旋 黄东[7] 江涛 方向[1] 王岚 吴因业[1] 吴松涛[1] 付蕾 李嘉蕊 李奇艳 赵家宏[2] 王天煦 YANG Zhi;TANG Zhenxing;LI Guohui;JIA Xiyu;WU Yanxiong;CHEN Xuan;HUANG Dong;JIANG Tao;FANG Xiang;WANG Lan;WU Yinye;WU Songtao;FU Lei;LIJiarui;LI Qiyan;ZHAO Jiahong;WANG Tianxu(Research Institute of Petroleum Exploration&Development,PetroChina,Beijing 100083,China;Research Institute of Petroleum Exploration and Development,PetroChina Jilin Oilfield Company,Songyuan,Jilin 138000,China;Research Institute of Petroleum Exploration and Development,PetroChina Daqing Oilfield Company,Daqing,Heilongjiang 163712,China;Research Institute of Petroleum Exploration and Development,PetroChina Xinjiang Oilfield Company,Kelamay,Xinjiang 834000,China;Research Institute of Petroleum Exploration and Development,PetroChina Qinghai Oilfield Company,Dunhuang,Qinghai 736202,China;Research Institute of Petroleum Exploration and Development,PetroChina Tuha Oilfield Company,Hami,Xinjiang 839009,China;ResearchInstitute of Petroleum Exploration and Development,PetroChina Southwest Oil&Gasfield Company,Chengdu,Sichuan 610000,China;Research Institute of Petroleum Exploration and Development,PetroChina Huabei Oilfield Company,Renqiu,Hebei 062550,China;School of Energy,China University of Geosciences(Beijing),Beijing 100083,China)

机构地区：[1]中国石油勘探开发研究院,北京100083 [2]中国石油吉林油田分公司,吉林松原138000 [3]中国石油大庆油田公司,黑龙江大庆163712 [4]中国石油新疆油田分公司,新疆克拉玛依834000 [5]中国石油青海油田分公司,甘肃敦煌736202 [6]中国石油吐哈油田分公司,新疆哈密839009 [7]中国石油西南油气田分公司,四川成都610000 [8]中国石油华北油田分公司,河北任丘062550 [9]中国地质大学(北京)能源学院,北京100083

出　　处：《地质学报》2021年第8期2257-2272,共16页Acta Geologica Sinica

基　　金：国家高层次特殊人才支持计划(第四批次);国家油气重大专项(编号2016ZX05046-006)资助的成果。

摘　　要：陆相页岩层系石油包括致密油和页岩油,是国内陆上"进(近)源找油"的主要对象,目前已进入战略突破期。以"十三五"国家油气重大专项课题联合攻关研究成果为基础,本文系统阐述了近5年我国陆相页岩层系石油聚集条件、富集区带、甜点区段、关键技术等方面的研究进展:(1)陆相湖盆主要发育陆源、内碎屑和混积岩-沉凝灰岩3种类型富液态烃页岩层系,提出有利储集相带、近源或源内、构造背景3个共性富集要素,评选出页岩层系石油富集区带33个,资源规模约110×10^(8) t;(2)储层甜点评价是页岩层系石油甜点区段评价的核心内容,发现砂岩、混积岩-沉凝灰岩集中发育段是主要有利储层甜点段,形成以储层甜点为核心的测井甜点段评价、地震甜点区预测方法,预测优选出55个甜点区,资源规模约32×10^(8) t;(3)以"甜点+水平井+密切割"为核心,集成配套地质评价、甜点预测、优快钻井、复杂缝网、效益开发等关键技术系列,支撑了5个亿吨级页岩层系油区快速发展。页岩层系石油预计待识别甜点区面积约17000 km^(2),待探明资源约130×10^(8) t,有望成为"十四五"乃至今后一个时期中国石油工业增储上产的重要现实领域。Continental shalestrata oil includes tight oil and shale oil,which is the main object of"exploring oil inside or near the source kitchen"onshore in China,and it has entered a strategic breakthrough period at present.Based on the joint research results of the 13 th five year plan national oil and gas major special project,this paper systematically expounds the research progress of oil accumulation conditions,enrichment zones,sweet area&section and key technologies of continental shale strata oil in China in recent five years.(1)The main types of shale strata oil can be divided into mainly terrigenous source,internal debris&mixed sediments,and carbonates.Three common enrichment factors are proposed,which are favorable reservoir facies zone,near source or source,and structural background.33 petroleum enrichment plays of shale strata oil are optimized,with resources of about 11 billion tons.(2)Sweet reservoir evaluation is the core content of sweet section evaluation of shale strata oil.It is found that the concentrated section with sandstone,mixed sediments and tuff,is the main favorable sweet reservoir section,logging sweet section evaluation and seismic sweet area prediction methods are developped with the sweet reservoir as the core,and 55 sweet areas are predicted and selected,with the resources of 3.2 billion tons.(3)Taking"sweet area+horizontal well+dense cutting"as the core,integrating key technology series such as geological evaluation,sweet area prediction,excellent and fast drilling,complex fracture network and benefit exploitation are developed,supporting the rapid development of 500 million ton shale strata oil areas.It is estimated that the shale strata oil sweet area to be identified is about 17 thousand square kilometers and the proved resources are about 13 billion tons,which is expected to become an important practical field for the petroleum industry to increase storage and production in the 14 th Five Year Plan period and even in the future.

关 键 词：致密油 页岩油 富集区带 甜点区段 地质工程一体化 进(近)源找油 

分 类 号：P618.13[天文地球—矿床学] TE31[天文地球—地质学]