岩性油气藏 ›› 2015, Vol. 27 ›› Issue (6): 5–14.doi: 10.3969/j.issn.1673-8926.2015.06.002

• 油气地质 • 上一篇    下一篇

页岩气储层含气量计算模型研究

张作清1,孙建孟2,龚劲松1,夏志林1   

  1.  1. 中国石化华东石油工程有限公司 测井分公司,江苏 扬州 225007 ;2. 中国石油大学(华东) 地球科学与技术学院,山东 青岛 266580
  • 收稿日期:2015-07-20 修回日期:2015-09-03 出版日期:2015-12-20 发布日期:2015-12-20
  • 第一作者:张作清( 1963- ),男,高级工程师,主要从事测井技术与管理工作。 地址:( 225007 )江苏省扬州市史可法路 85 号中国石化华东石油工程有限公司。 E-mail : zhangzuoqing@126.com 。
  • 基金资助:

    中国石化先导项目“非常规天然气测井评价技术及模块编制”(编号: SG14-29X )资助

Gas content calculation model of shale gas reservoir

Zhang Zuoqing 1,Sun Jianmeng 2,Gong Jingsong 1,Xia Zhilin 1   

  1.  1. Well Logging Company , Huadong Petroleum Engineering Co. Ltd. , Sinopec , Yangzhou 225007 , Jiangsu , China ;2. School of Geosciences , China University of Petroleum , Qingdao 266580 , Shandong , China
  • Received:2015-07-20 Revised:2015-09-03 Online:2015-12-20 Published:2015-12-20

摘要:

页岩气是一种重要的非常规天然气。 依据等温吸附实验数据,对影响页岩吸附能力的各项因素进行了分析,并借鉴 KIM 方程构建了页岩吸附气含量计算模型。 根据所建立的页岩岩石物理模型,对页岩的孔隙系统进行了划分,并构建了页岩岩石的导电模型,利用该导电模型计算了页岩的游离气饱和度。 模型参数全部实现常规测井资料计算,最后采用含气量计算模型对页岩气井进行了处理,同时对处理结果进行了分析,验证模型的准确性。 分析埋深、成熟度对页岩含气性的影响,并进行验证。 利用吸附气和游离气体积之和估算页岩气储层含气量,其结果与现场岩心解吸含气量对应良好,验证了本模型的可行性。

关键词: 断层封闭性, 胶结作用, 克夏断裂带, 准噶尔盆地

Abstract:

Shale gas is important unconventional resource. Based on the experimental isotherm adsorption data, the factors affecting the adsorption of shale were analyzed and the calculation model of shale adsorbed gas content was established by KIM equation. Through the establishment of shale rock physics model, the pore system was divided and a shale rock conductivity model was set up, and shale free gas saturation was calculated by use of this conductivity model. All parameters of the model were calculated by conventional logging data. Finally, the gas content calculation model was used to evaluate a real shale gas well, and the accuracy was verified. The influence of buried depth and maturity on the gas content was also analyzed. The gas content of shale gas reservoir was calculated by using the total volume of adsorbed gas and free gas, and the result tally with the desorption gas content of core, which verifies the feasibility of this model.

Key words:  fault sealing , cementation , Kexia fault zone , Junggar Basin

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