川西马井气田蓬二气藏储层特征

马井气田蓬二气藏是马井构造目前最具开发潜力的气藏。本文分析了蓬二气藏储层的沉积相、砂体展布与岩石学特征、储层物性以及地球物理响应特征。研究结果表明,该气藏储层沉积微相为水下分流河道、河口坝,储层具有低伽玛、低密度、低中子、高声波、相对高电阻率的测井响应特征,地震响应模式为低频、强振幅、低阻抗。

Reservoir characteristics and exploration in the Peng-2 gas pool of the Majing Gas Field,western Sichuan

The Peng-2 gas pool（Jp2） is believed to be highly prospective at present in the Majing Gas Field,western Sichuan.The reservoir rocks in general consist of the delta plain-delta front deposits including the disrtibutary channel and channel mouth bar microfacies,which have the geophysical logs with low gamma-ray logs,low density,low neutron logs,high acoustic logs and high electrical resistivity logs,and the seismic responses with low frequency,strong amplitude and low impedance.The research of reservoir characteristics may assist in the improvement of our knowledge of the reservoirs and further exploration in the study area.