吐哈探区深层油气勘探进展及潜力评价  

Exploration Progress and Potential Evaluation of Deep Oil and Gas in Turpan-Hami Exploration Area

作　　者：支东明 李建忠 陈旋 杨帆[3] 刘俊田 林霖 ZHI Dongming;LI Jianzhong;CHEN Xuan;YANG Fan;LIU Juntian;LIN Lin(PetroChina Tuha Oilfield Company,Tuha Oilfield Company,Hami,Xinjiang 839009,China;PetroChina Tuha Oilfield Company,Research Institute of Exploration and Development,Hami,Xinjiang 839009,China;Research Institute of Petroleum Exploration and Development,PetroChina,Beijing 100083,China)

机构地区：[1]中国石油吐哈油田分公司,新疆哈密839009 [2]中国石油吐哈油田分公司勘探开发研究院,新疆哈密839009 [3]中国石油勘探开发研究院,北京100083

出　　处：《新疆石油地质》2023年第3期253-264,共12页Xinjiang Petroleum Geology

基　　金：中国石油油气和新能源分公司科技项目(2022KT0404);中国石油前瞻性基础性技术攻关项目(2022DJ0507)。

摘　　要：为实现吐哈探区油气勘探由中—浅层向深层、由常规向非常规转向,推动其深层油气资源勘探,通过对吐哈盆地、三塘湖盆地和准噶尔盆地准东地区的构造-岩相古地理演化的分析,对其含油气系统特征和勘探潜力评价,梳理主要勘探方向,优选战略突破领域。石炭纪—二叠纪,吐哈探区为统一沉积盆地,具有相似的沉积环境和沉积建造;三叠纪—侏罗纪,研究区被分割,形成独立的前陆盆地;与构造-岩相古地理演化相对应,形成了石炭系海相—海陆过渡相、二叠系湖相和侏罗系湖相—煤系3套烃源岩,构成三大含油气系统。勘探思路的转变促进了深层油气勘探的重大进展,准东地区石钱滩组海相碎屑岩油气藏、二叠系页岩油藏、常规砂岩油藏以及吐哈盆地中—下侏罗统大面积致密砂岩气藏勘探取得了重大突破,发现了大规模优质储量,实现了战略资源的有序接替;应按照战略准备、战略突破和战略进行3个层次的勘探,聚焦10个有利油气勘探方向。To realize the shift of oil and gas exploration from shallow-middle to deep strata,and from conventional to unconventional re-sources,and then to promote the exploration of deep oil and gas resources in the Turpan-Hami exploration area,the tectonic-lithofacies pal-aeogeographical evolution of Turpan-Hami basin,Santanghu basin,and Zhundong block of Junggar basin were analyzed,the characteris-tics and exploration potential of the petroleum systems in these basins were evaluated,the main exploration targets were determined,and the fields for strategic breakthrough were selected.In the Carboniferous-Permian period,the Turpan-Hami exploration area was a unified sedimentary basin with similar sedimentary environments and structures.In the Triassic-Jurassic period,the study area was separated into several independent foreland basins.With the tectonic-lithofacies palaeogeographical evolution,three sets of source rocks(marine-transi-tional facies of Carboniferous,lacustrine facies of Permian,and lacustrine-coal measure of Jurassic)were formed,contributing to three ma-jor petroleum systems.The change in exploration ideas has promoted significant progress in petroleum exploration in deep strata.Signifi-cant breakthroughs have been made in the exploration of Shiqiantan formation marine clastic oil and gas reservoirs,Permian shale oil reser-voirs and conventional sandstone oil reservoirs in the Zhundong block,and the Middle-Lower Jurassic large-scale tight sandstone gas reser-voirs in the Turpan-Hami basin,which enables the discovery of large-scale high-quality reserves and the orderly succession of strategic re-sources.Future exploration should be carried out at three levels:strategic preparation,strategic breakthrough,and strategic implementa-tion,with a focus on 10 favorable directions.

关 键 词：吐哈盆地 三塘湖盆地 准噶尔盆地 准东地区 深层油气 勘探成果 勘探方向 勘探进展 油气潜力 

分 类 号：TE121.1[石油与天然气工程—油气勘探]