用K函数法识别低阻气层

Identification of low-resistivity gas reservoir with K Function

地矿部石油物探研究所, 南京210014

Research Institute of Geophysical Prospecting for Petroleum, Nanjing 210014

本文根据松辽盆地南部浅层天然气低阻储层的测井响应特征,选用声波、中子、密度、自然电位和自然伽玛等测井信息来建立判别气层的特征参数──K函数。依据K函数判别方法研制的软件,处理了一些井的低阻含气组段,取得了明显的地质效果。

on the basis of the log response features for the low-resistivity shallow gas reservoir in southern Songliao Basin, the characteristic parameters K Function for identifying gas reservoirs has been derived from the log information such as compensated neutron log, acoustic log,densilog, gamma ray log, and spontaneous potential log. The software is developed according to the K Function identification method. It has been used in the processing of some low-resestivity gas-bearing formations, and the obvious results are achieved.