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页岩孔隙度氦气法测试影响因素分析及方法改进 被引量:2

Analysis of Influencing Factors and Improvement of Shale Porosity Test by Helium Method
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摘要 页岩孔隙度是评价页岩气地质储量和产能的关键参数,精确获取页岩孔隙度一直是科研人员关注的重点。室内通常采用氦气法、饱和流体法测量页岩孔隙度。根据室内氦气法孔隙度的实验方法及操作规范,从样品测试前处理方式、测试平衡时间、岩石外观体积的测试三个方面,分析孔隙度测试的影响因素,并改进实验方法、优化实验参数,确保页岩气地质储量评价的准确、可靠,对页岩气的勘探开发具有重要意义。 The shale porosity is a key parameter for evaluating the geological reserves and productivity of shale gas.To obtain the shale porosity accurately has always been a major concern for researchers.The helium method and saturated fluid method are usually used to measure shale porosity in a lab.According to the testing method and operation specification for the indoor helium porosity method,the influencing factors for porosity measurements were analyzed from three aspects:sample pre-treatment,balancing time test and rock appearance volume test.The testing method was improved and relevant parameters were optimized.Ensuring the accuracy and reliability of shale gas geological reserve evaluation is of great value to shale gas exploration and development.
作者 孙冲 SUN Chong(Exploration and Development Research Institute of Sinopec Jianghan Oilfield Company, Wuhan, Hubei 430223,China)
出处 《江汉石油职工大学学报》 2022年第2期15-17,共3页 Journal of Jianghan Petroleum University of Staff and Workers
关键词 页岩 氦气法孔隙度 线切割 骨架体积 外观体积 shale helium porosity wire cutting matrix volume appearance volume
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