Studies of influencing factors for shale gas reservoir performance
页岩气在全球能源供应中扮演着重要角色。为了实现页岩气的经济效益，通常采用水平井和水力压裂技术。因此，页岩气藏的生产率将受到储层条件和水力压裂特性的影响。本文将影响页岩气生产的因素分为两类：储层属性和水力压裂属性。通过调研已发表的页岩气模拟研究，确定了这些属性的典型范围。使用CMG-GEM软件完成储层模拟工作，CMG-CMOST软件用于完成敏感性分析工作。构建了一个三维单相双渗透页岩气藏模型，考虑了达西流、非达西流和气体扩散三种流动机制以及气体吸附和解吸机制。通过对每个参数进行敏感性检查，分析了这些因素对预测页岩气藏生产的影响。通过模拟1年、5年、10年和20年的生产，量化了储层和水力压裂参数对不同时间段的影响。
CMG软件的应用情况
在本研究中，CMG-GEM软件被用于构建和模拟三维单相双渗透页岩气藏模型，该模型考虑了达西流、非达西流、气体扩散以及气体吸附和解吸机制。CMG-CMOST软件则用于执行敏感性分析，以评估不同参数对页岩气产量的影响。通过这些软件，研究者能够模拟和分析储层参数和水力压裂参数对页岩气产量的影响，以及这些参数随时间的变化。
ABSTRACT
Shale gas resource plays a significant role in energy supply worldwide. For economic production of shale gas, technologies of horizontal well and hydraulic fracturing are used for shale gas reservoirs. Therefore, the productivity of the shale gas reservoirs will be influenced by both reservoir condition, and hydraulic fracture properties.
In this thesis, parameters that will influence shale gas production were classified into two categories: reservoir properties and hydraulic fracture properties. Published shale gas simulation studies were surveyed for determining the typical ranges of those properties. CMG-GEM was employed to finish the reservoir simulation work, and CMG CMOST was used to complete the sensitivity analysis work.
A three dimensional single phase dual-permeability shale gas reservoir model was created. Three flow mechanisms (Darcy flow, Non-Darcy flow, and Gas diffusion) as well as gas adsorption and desorption mechanism were considered in this model. Sensitivity checks for each parameter were performed to analyze the effect of factors to forecast the production of shale gas reservoir. Influences of reservoir and hydraulic fracture parameters for different time periods were quantified by simulation of 1 yr., 5 yr., 10 yr., and 20 yr. production.
Simulator: GEM
中文作者单位
作者王佳琦（Jiaqi Wang）的所属机构是密苏里科技大学（Missouri University of Science and Technology），位于美国密苏里州。本研究作为部分满足石油工程硕士学位要求的论文提交。
