【摘要】 千米桥潜山是一个复杂的凝析油气藏,一些生产井大量出水,其原因至今尚未搞清。通过地质、测井资料分析认为该潜山储层属于风化壳型,有效储层在距潜山顶面250 m以内范围,在不考虑封存水的情况下,千米桥潜山是一个"层状纯气藏"。结合试油、试采资料分析,建立起了双储集系统模式,研究了封存水储集系统的赋存状态,指出射孔完成特别是酸化这种完井方式是造成气井产水的主要诱因之一。更多还原

【Abstract】 Qianmiqiao buried hill is a complex condensate reservoir.There are many paradoxes in the process of exploration and production.The main purpose of this paper is to discuss the hydrocarbon accumulation pattern within this buried hill.After analyzing the well log information,the authors believe that the buried hill is a weathering crust reservoir,and the effective reservoirs are within the 300m interval from the top of weathering crust.The authors establish a double reservoir system based on well-testing and production data,and investigate the performance of the occlusion water system.This pattern indicates that perforated completion,especially acid treatment,is the main cause of producing water in the wells.If the occlusion water is ignored,the reservoir in the Qianmiqiao buried hill could be considered to be a "layered pure condensate pool".更多还原