欧加登盆地岩性油气藏勘探潜力分析  

Analysis of Exploration Potential of Lithologic Reservoirs in Ogaden Basin

作　　者：倪帮梁 王海真 李军生 孙宽 NI Bangliang;WANG Haizhen;LI Junsheng;SUN Kuan(POLY-GCL Nature Gas Group Holdings Limited,Beijing 100010,China)

机构地区：[1]保利协鑫天然气集团控股有限公司,北京100010

出　　处：《重庆科技学院学报（自然科学版）》2020年第5期15-19,共5页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

摘　　要：在欧加登盆地,随着勘探程度的不断提高,隐蔽油气藏逐渐成为重要的勘探对象。通过分析欧加登盆地的油气成藏条件,认为该盆地具有形成岩性油气藏的地质条件,岩性油气藏的勘探潜力巨大。盆地内在裂谷期发育的斜坡区是碎屑岩岩性油气藏勘探的有利区带,斜坡区沉积的Gumburo组早期辫状河三角洲前缘亚相是岩性油气藏勘探的有利相带;在坳陷期发育的Middle Hamanlei组潮坪亚相是碳酸盐岩岩性油气藏勘探的有利相带,次生孔隙发育带是有利的勘探区带。With the deepening of exploration degree,subtle reservoirs have gradually become important exploration objects in Ogaden basin.Through the analysis of hydrocarbon accumulation conditions in Ogaden basin,it is considered that the basin has geological conditions for forming lithologic reservoirs,and the exploration potential of lithologic reservoirs is huge.The slope area developed in rift period in the basin is the favorable area for exploration of clastic lithologic reservoir.The braided river delta front subfacies of Gumburo formation deposited in the slope area is the favorable facies belt for lithologic reservoir exploration.The tidal flat subfacies of Middle Hamanlei formation developed in depression period is the favorable facies belt for the exploration of carbonate lithologic reservoir,and the secondary pore development zone is the favorable exploration area.

关 键 词：欧加登盆地 岩性油气藏 勘探潜力 有利相带 次生孔隙 

分 类 号：TE132[石油与天然气工程—油气勘探]