【摘要】 在松辽盆地十屋断陷八屋气田 ,由于气田水的矿化度低 ,使得利用电阻率曲线不能将气层与水层区分开。为了解决这个问题 ,作者依据中子测井的“挖掘效应”原理 ,提出一种识别气、水层的新方法 :首先 ,采用声波和中子孔隙度之间的差值合成一种新的曲线——声波中子合成曲线 ;然后 ,利用自然伽马曲线等划分出砂岩储层段 ;最后 ,利用所合成的声波中子合成曲线进行判别 ,凡大于零者为气层 ,小于零则为水层更多还原

【Abstract】 In Bawu gas field, Shiwu fault, Songliao Basin, because the mineralization degree is low, it is very difficult to distinguish between gas layers and water layers by resistivity logs. In order to solve this problem, this paper gives a new way to identify reserviors according to the theory of “excavation effect”: first, to synthesize a new log (ACNL) by acoustic and neutron porosity; then, to separate out the sandy reservior sections ; finally, using the new log (ACNL) to distinguish the reservoirs: for gas layer, the new log value is over zero, and lower zero for water layer.更多还原