【摘要】 基于SLG东区致密气藏的储层岩性识别、储渗特征和含油气性质分析,利用区内50多口井的500多个不同类型的试气储层测井多参数的统计分析结果,开展了10多种不同系列常规测井技术划分岩性、物性及含气性的有效性优化评价,提出了致密气储层评价中选择经济实用、最佳匹配的测井技术系列的原则;利用实例分析了应用效果。其中孔隙度系列以密度测井、声波时差测井效果最好,岩性系列以自然电位、自然伽马能谱测井效果较好,电阻率测井系列以高分辨率阵列感应测井效果最好。该研究为加强测井系列采集和资料深化应用、开发新增气层有效厚度新方法项目、实施经济实用测井技术系列提供了可靠依据,有效提升了致密气储层测井定性识别和定量评价能力。更多还原

【Abstract】 Based on the analysis of lithology identification,reservoir characteristics,and oil/gas property of tight gas reservoirs in the eastern part of SLG,and by using multi-parameter logging statistics of more than 500 different types of reservoirs from over 50 wells within the region,optimization effectiveness evaluation of more than 10 different series of traditional logging technologies in lithology and physical property classification,and gas content assessment are performed,and the rules of choosing economic and suitable logging technology series in the process of tight gas reservoir evaluation are put forward.Real cases are also used to analyze practical application results of the rules.It revealed that density logging and sonic logging are the best in porosity series,spontaneous potential logging and natural gamma ray spectrometry logging present better performance in lithology series,and high resolution array induction logging excels others in resistivity series.This study provides reliable basis for enhancing material collection and in-depth application of logging series,developing new technologies and new projects,and implementing economic and suitable logging series,all of which effectively have increased the ability to identify and evaluate tight gas reservoir.更多还原