摘要
吐哈盆地北部山前带紧邻胜北、丘东、小草湖三大生油气凹陷。南北为近物源沉积,发育多套储盖组合。经历燕山期、喜山期等多期构造运动,从北至南发育逆掩带、背斜带和斜坡鼻隆带,油气多期运聚成藏。目前,已发现鄯勒、恰勒坎、柯柯亚、玉果、七泉湖5个油气田,6套层系获得工业油气流,证实为复式油气聚集带。燕山期古构造、现今构造高点、断层、储层、盖层等控制了油气藏的形成与分布。下一步应在积极拓展J2s主力油气藏的同时,加强水西沟群J1-2sh油气藏的勘探及中—东段浅层油气藏的勘探。
The north piedmont zone of Tuha Basin is adjacent to three large oil-gas generating depressions （Shengbei, Qiudong and Xiaocaohu）, and developed several reservoir-cap assemblages. Experienced multiple tectonic movements such as Yanshanian tectonic movement and Himalayan tectonic movement, it developed thrust belt, anticlinal belt and slope nose-shaped uplift belt from north to south, and the reservoirs formed by multi-stage hydrocarbon migration and accumulation. At present, five oilfields have been found such as Shanle, Qialekan, Kekeya, Yuguo and Qiquanhu, and six layer series obtained commercial oil and gas flow. The reservoir forming and distribution are controlled by Yanshanian palaeostructure, the existing structural high, faults, reservoirs and caps. It is proposed that the prospecting for Shuixigou Group reservoir and the middle-eastern shallow reservoir should be strengthened while expanding the dominated reservoir of J2s.
出处
《岩性油气藏》
CSCD
2009年第3期29-34,共6页
Lithologic Reservoirs
关键词
成藏条件
主控因素
探勘方向
北部山前带
吐哈盆地
accumulation condition
controllingfactors
exploration direction
north piedmont zone
Tuha Basin
