关键词: 低渗透气藏, 砂岩, 储气层, 气测, 测井解释

Abstract: This paper gives a study of the low permeability gas reservoir in upper Paleozic in northern Shanxi Province. Display of complete hydrocarbon data, background value of gas logging, thickness displayed, pay thickness, bit diameter, coring interval, and drilling time of sandstone and mudstone are considerated in actual field operations and then calibrated and normalized to obtain a ratio between the average equivalent gas content and the drilling time, so that a better correlatability between wells as well as formation is obtained. Thus, quantitative identification of the gas logging interpretation technique for a low permeability gas reservoir is developed. According to the results from field practice, conformance of such an interpretation technique is 80% and higher.