欢迎来到天天文库
浏览记录
ID:37346242
大小:1.61 MB
页数:7页
时间:2019-05-21
《亚诺斯盆地LB区块油气成藏特征与富集规律》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、第37卷第1期石油雾鼢沾厦Vo1.37.No.12015年1月PETROLEUMGE0LoGY&EXPERIMENTJan.,2015文章编号:1001—6112(2015)01-0057-07doi:10.1l781/ysydz20l5O1O57亚诺斯盆地LB区块油气成藏特征与富集规律冯方,王晓杰,胡俊峰,胡平,王焕(1.中国石化国际石油勘探开发有限公司,北京10(X)83;2.北京温菲尔德石油技术开发有限公司,北京100191)摘要:在区域油气成藏条件、运聚特征研究的基础上,总结亚诺斯盆地LB区块成藏主控因素及成藏模式,探讨局部油气富集的影响因素,预测有利勘探方向。L
2、B区块是油气运聚的优势指向区,主力储层卡沃内拉组内部发育多套储盖组合,圈闭类型主要为与正断层伴生的低幅断背斜、断鼻构造;区块油气成藏的主控因素是构造与储层,它源油气沿c7层块状砂岩侧向运移,首先在层内构造圈闭中聚集成藏,部分油气被后期断层作用垂向输导到C5层,并在该层底部紧邻断层的构造、岩性圈闭内再次聚集成藏.局部油气富集受构造背景、圈闭幅度及储层质量等因素共同控制;区内预测发育有c7层远离断层的低幅背斜型油藏、c5层断层下降盘岩性上倾尖灭型油藏。关键词:储盖组合;主控因素;成藏模式;富集规律;亚诺斯盆地中图分类号:TE122.3文献标识码:AHydrocarbonacc
3、umulationcharacteristicsandenrichmentcontrolsofLBblockinLlanosBasinFengFang,WangXiaojie,HuJunfeng,HuPing,WangHuan(1.S1NOPECInternationalPetroleumExplorationandProductionCorporation,Beijing100083,China;2.BeijingWinfieldPetroleumTechnologyCo.LTD.,Beifing100191,China)Abstract:Basedontheanaly
4、sisofhydrocarbongeneration,migrationandaccumulation,thecontrollingele—mentsandpatternofreservoirsintheLBblockoftheLlanosBasinweresummarized.Theinfluencingfactorsforlocalhydrocarbonenrichmentwereidentified,andfavorableexplorationtargetswerepredicted.TheLBblockhadagoodpotentialforhydrocarbo
5、nmigrationandaccumulation.Inthemajorreservoir(theCarboneraFormation),multiplesetsofreservoir—capassemblagesdeveloped.Trapsincludedfaultednosesandfaultedanticlinesassocia-tedwithnormalfaults.Structureandreservoirwerethemaincontrollingfactorsofhydrocarbonaccumulation.Hy·drocarbonmigratedlat
6、erallyalongmassivesandstonesintheC7sectionoftheCarboneraFormation.Firstly,theyaccumulatedinstructuraltrapsintheC7section,andthenpartiallymigratedupwardsintotheC5sectionthroughfaultsandaccumulatedinstructuralandlithologictrapsadjacenttothefaultsatthebottomofC5.Localhydrocar-bonenrichmentwa
7、saffectedbyvariousfactors,suchastectonicbackground,trapamplitudeandreservoirquali-ty.Low—amplitudefaultedanticlinereservoirsdevelopedfarawayfromfaultsintheC7sectionandlithologicupdippinch.outreservoirsinthedownthrownsideoffaultsintheC5sectionwerepredicted.Keywords:r
此文档下载收益归作者所有