二连盆地赛汉塔拉凹陷赛中洼槽岩性油藏勘探  

Exploration of Lithologic Oil Reserviors in Saizhong Sag of Saihantala Depression in Erlian Basin

作　　者：张久强[1] 吕亚辉[1] 李林波[2] 秦凤启[3] 

机构地区：[1]华北油田地球物理勘探研究院 [2]华北油田勘探部 [3]华北油田勘探开发研究院,河北省任丘市062552

出　　处：《中国石油勘探》2004年第3期54-57,共4页China Petroleum Exploration

摘　　要：赛汉塔拉凹陷是典型的单断断槽式凹陷,在构造油藏勘探步入低谷的情况下,提出转变勘探思路"下洼寻找岩性油藏"的大胆设想,通过重新处理资料、应用层序地层学方法进行层序划分和体系域研究、精细地震资料解释和精细储层地震反演等技术攻关,选准有利目标取得成功;其洼槽带的油气成藏条件仍然受控于构造背景、油气资源和沉积砂体分布;其岩性油藏主要分布于洼槽带具有构造背景的部位;油藏类型以岩性上倾尖灭油藏和透镜体岩性油藏为主。Saihantala Depression is a typical single faulted depression. The ambitious plan for 'search of lithologic oil reservoirs in the sag area' is proposed when exploration of structural oil reservoirs is not promising. With the data reprocessed, the oil field successfully used the sequence stratigraphic methods for division of sequence and study of system tracts and adopted precise seismic data interpretation andprecise reservoir seismic inversion technologies for selection of the favorable targets. The conditions for oil and gas migration and accumulation in the sag belt are still controlled by the structural background, oil and gas resources and distribution of sedimentary sandbody. The lithologic oil reservoirs are distributed mainly in the locations of the sag belt with the structural background. They are mainly lithologic updip pinch-out oil reservoirs and lenticular lithologic oil reservoirs.

关 键 词：二连盆地 赛汉塔拉凹陷 岩性油藏 油藏勘探工作 地震资料 

分 类 号：P618.13[天文地球—矿床学]