准噶尔盆地二叠系全油气系统与源内天然气勘探新领域  

Total Petroleum System and Inner⁃Source Natural Gas Exploration in Permian Strata of Junggar Basin

作　　者：唐勇[1] 雷德文 曹剑[3] 刘寅[4] 黄立良[1] 李卉[1] TANG Yong;LEI Dewen;CAO Jian;LIU Yin;HUANG Liliang;LI Hui(PetroChina Xinjiang Oilfield Company,Research Institute of Exploration and Development,Karamay,Xinjiang 834000,China;PetroChina Xinjiang Oilfield Company,Exploration Division,Karamay,Xinjiang 834000,China;School of Earth Science and Engineering,Nanjing University,Nanjing,Jiangsu 210023,China;School of Earth Science and Technology,China University of Petroleum,Qingdao,Shandong 266580,China)

机构地区：[1]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 [2]中国石油新疆油田分公司勘探事业部,新疆克拉玛依834000 [3]南京大学地球科学与工程学院,南京210023 [4]中国石油大学(华东)地球科学与技术学院,山东青岛266580

出　　处：《新疆石油地质》2022年第6期654-662,共9页Xinjiang Petroleum Geology

基　　金：国家自然科学基金(41702138);中国石油前瞻性基础性技术攻关项目(2021DJ0108,2021DJ1801)。

摘　　要：为进一步拓展准噶尔盆地油气勘探领域,丰富和发展石油地质基础理论及认识,以近年来勘探实践为基础,总结现阶段油气勘探特点与发展趋势,分析了二叠系全油气系统及源内深层非常规天然气大规模成藏条件。结果表明,中—下油气成藏组合已成为勘探主体,深层具备油气聚集条件,烃源岩控制油气分布,形成了常规和非常规油气藏有序共存的分布模式。二叠系优质烃源岩持续供烃,是全油气系统形成的前提,并发育源内和源外2套油气成藏子系统,二叠系发育不同类型的源内储集层,具有大规模天然气,特别是非常规天然气的勘探潜力。这不仅拓宽了准噶尔盆地油气勘探领域,支撑从大油田建成大油气田,也对进一步完善全油气系统理论具有重要意义,深层源内非常规油气是未来富烃凹陷勘探的重要领域。In order to further expand the petroleum exploration and enrich the basic theory and understanding on petroleum geology in Junggar basin,based on the exploration practices in recent years,the characteristics of present petroleum exploration and its trend are summarized,and the total petroleum system in Permian strata and the conditions for largescale accumulation of unconventional natural gas in innersource deep strata are described.The results show that the middle and lower reservoir assemblages have become the major exploration targets,deep strata have the conditions for oil and gas accumulation,the source rock controls the distribution of oil and gas,and a distribution pattern with orderly coexistence of conventional and unconventional reservoirs is established.The continuous hydrocarbon supply from highquality Permian source rocks is the premise for the formation of the total petroleum system,and two sets of oil and gas accumulation systems are found inside source and outside source.Various innersource reservoirs are developed in the Permian strata,which have great potential for natural gas exploration,especially unconventional natural gas.The understanding not only broadens the petroleum exploration area in Junggar basin,but provides theoretical and practical support for construction of a large oil and gas field.Moreover,it is of great significance for further improving the theory of total petroleum system.Deep innersource unconventional oil and gas are becoming an important frontier for future exploration in hydrocarbonrich sags.

关 键 词：准噶尔盆地 二叠系 风城组 全油气系统 非常规天然气 成藏条件 

分 类 号：TE121.1[石油与天然气工程—油气勘探]