塔里木盆地塔中北斜坡中—下奥陶统鹰山组凝析气田发现于2006年,至2010年底探明石油地质储量3.81×108t(油当量).气藏的储层为受层间岩溶缝洞型储集体控制的鹰山组大型准层状优质碳酸盐岩,主力烃源岩为中—下寒武统白云岩和上奥陶统碳酸盐岩及泥灰岩,油气主要分布于奥陶系不整合面之下0～200m范围内.论述了气田的勘探历程、主要地质特征、勘探的技术创新,以及对海相碳酸盐岩凝析气田勘探的启示.

Yingshan condensate gas field is the Mid-lower Ordovician Yingshan Formation reservoir in the north slope of Tazhong Uplift, Tarim Basin. It was discovered in 2006. The field reached 0.381 billion oil equivalent of proven reserves in place by the end of 2010. The gas reservoir consists Yingshan Formation excellent quasi-layered carbonate rock that is controlled by the fractured/caved reservoir-body with interbedded karstification. Gas is mostly distributed in the range of 0~200 m beneath the unconformity surface at the top of Yingshan Fm.. The Yingshan reservoir is directly capped unconformably with the Upper Ordovician Lianglitage dense argillaceous limestone. Hydrocarbon derived mostly from the Middle-Lower Cambrian dolostone and upper Ordovician carbonate rock and marlite. The exploration history, main geology characteristics, improving technique are reviewed on the marine carbonate gas field.