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针对西部凹陷基底各构造层的地质结构特点,深化基底各构造层特征研究,深入探讨基岩油气藏成藏特征及分布规律,创新地质认识,取得了良好的勘探效果。通过研究,建立了变质岩、碳酸盐岩内幕成藏模式以及基底多层结构成藏模式,有效地指导了勘探实践。陈古2、兴古9等14口预探井和风险探井——赵古1井的成功钻探,有望在该区带形成亿吨级储量规模。
Aiming at the geological structural features of the structural strata in the western depression, the characteristics of structural strata in the basement are deepened. The hydrocarbon accumulation characteristics and distribution rules of the basement reservoirs are discussed in depth. The geological understanding is innovated and a good exploration result is achieved. Through the research, we established metamorphic rocks, carbonate rock accumulation model and multi-layer basement accumulation mode, which effectively guided the exploration practice. Chen Gu 2, Xingu 9 and other 14 pre-exploration wells and exploration wells - a successful drilling Zhao Gu 1 well, is expected to form a 100 million ton reserves scale in the zone.