欢迎来到天天文库
浏览记录
ID:37329253
大小:955.51 KB
页数:6页
时间:2019-05-21
《南美洲前陆盆地油气分布与勘探前景》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、2013年12月大庆石油地质与开发Dec..2013第32卷第6期PetroleumGeologyandOilfieldDevelopmentinDaqingVo1.32No.6DOI:10.3969/J.ISSN.1000—3754.2013.06.008南美洲前陆盆地油气分布与勘探前景赵明章'于淼徐九华王仁冲史立勇高军(1.北京科技大学土木与环境工程学院,北京100083;2.中国石油天然气勘探开发公司,北京100034;3.中国石油勘探开发研究院,北京100083;4.东方地球物理勘探公司,河北涿州072750)摘要:南美洲前陆盆地的演化经历了克拉通边缘盆地、裂谷盆地和前陆盆地3个阶段
2、。前陆盆地的演化过程不仅控制盆地烃源岩、储层和盖层的发育类型和程度,而且影响了次安第斯前陆盆地的油气分布规律。平面上,南部以油为主,中部以气为主,北部油气并重;垂向上,新生界以油为主,中生界油气并举,古生界以气为主;油气自南向北富集程度越来越高。通过分析南美洲前陆盆地演化、油气地质条件和油气分布规律,指出了北部富油、中部含气前陆盆地的风险勘探区和富油前陆盆地的有利勘探区。关键词:南美洲;次安第斯前陆盆地;盆地原型;石油地质特征;有利勘探区中图分类号:TEl21文献标识码:A文章编号:1000—3754(2013)06—0O36.06PETRoLEUMDISTRIBUTIoNANDEXPLoR
3、ATIoNPRoSPECTSoFTHEFoRELANDBASINSINSoUTHAMERICAZHAOMingzhang,YUMiao,XUJiuhua,WANGRenchong。,SHILiyong,GAOJun(1.CollegeofCivilandEnvironmentEngineering,UniversityofScienceandTechnologyBeo'ing,Beijing100083,China;2.ChinaNationalOilandGasExplorationandDevelopmentCorporation,Beijing100034,China;3.PetroC
4、hinaResearchInstituteofPetroleumExplorationandDevelopment,Beijing100083,China;4.CNPCBGPInc.,Zhuozhou072750,China)Abstract:TheevolutionoftheforelandbasinsinSouthAmericacanbesummarizedasthefollowingthreestages:pericratonicbasin,riftbasinandforelandbasin.Theevolutionalprocessoftheforelandbasinnotonlyc
5、ontrolsthedevelopedtypesanddegreeofthesourcerocks,reservoirsandcaprocksinthebasin,butalsoinfluencesthepetro—leumdistributionlawsinthesub—Andesforelandbasins.Inhorizontal,thesouthismainlydistributedbytheoil,themiddleisenrichedwiththegas,andthenorthisaccumulatedwithboththeoilandgas;invertical,theoili
6、sprincipallyenrichedinCenozoicgroup;thelandgasisbothentrappedinMesozoicgroup,andthegasismainlyaccumulatedinPaleozoicgroup;theenricheddegreeofthepetroleumfromthesouthtonorthismoreandmorefa—vorite.Throughtheanalysesoftheevolution,geologicalconditionsandthedistributionlawsofthehydrocarbonfortheforelan
7、dbasinsinSouthAmerica,theriskexplorationareasareputforwardforthenorthoil—accumulatedantimiddlegas-bearingforelandbasins,andmoreoverthefavorableexplorationalregionsorplaysarepresentedfortheni1.enrichedfore1a
此文档下载收益归作者所有