摘要
新场气田位于四川盆地西部,是川西地区主力气田之一。通过对该区多口井的岩石学以及电性、物性特征进行分析研究,认为须家河二段储层岩石类型复杂,储集空间类型多样,储层平均孔隙度3.17%,平均渗透率2.78×10-3μm2,为典型的低孔低渗特征,根据气田须二段储层的特点,结合孔渗关系曲线以及含气性等参数,对该区储层进行分类评价,认为Ⅲ类储层是须家河组中主要的储层类型,并对该区天然气有利富集区的平面展布规律进行综合评价。
Xinchang gas field is one of the main gas fields in the western Sichuan depression. Through research of lithology and physical properties for several drilling wells, it was considered that the types of reservoir rocks are complex and the reservoir accumulation space was various. The average porosity of reservoir was 3.17% and average permeability was 2. 785×10^-3μm^2, belonging to typical low porosity and low permeability reservoir. According to the characters of reservoir, combined with porosity, permeability, gas potential and other parameters, the reservoir of the Xujiahe Formation was classified and evaluated respectively. It was showed that the reservoirs developed in the Xujiahe Formation were mainly composed of type Ⅲ. Finally, the distribution regularity of gas favorable zones was predicted and evaluated.
出处
《矿物岩石》
CAS
CSCD
北大核心
2007年第4期98-103,共6页
Mineralogy and Petrology
关键词
盆地
新场气田
须家河组二段
储层评价
Sichuan basin
Xinchang gas field
the Second Member of Xujiahe Formation
reservoir evaluation
