随着能源需求的持续增长，作为非常规甲烷源（CH ₄ ）的页岩气显示出巨大的商业化潜力。但是，由于页岩气储层的渗透率极低，因此可能需要按顺序进行特殊程序，例如水平钻井，水力压裂，定期关井和注入二氧化碳（CO ₂ ）以提高天然气产量，最大程度地提高经济效益，并确保安全和无害环境的运营。尽管对此新兴技术进行了深入研究，但许多研究人员仅在孤立地研究页岩气设计和运营决策。实际上，这些决定是高度互动的，应该同时考虑。因此，本研究中解决的研究问题包括设计与运营决策之间的相互作用。在本文中，我们首先建立了页岩气藏的全物理模型。接下来，我们对重要设计和操作决策进行敏感性分析，例如井长，井眼布置，裂缝数量，裂缝距离，CO ₂ 注入速率和闭井调度，以获取增产效果。对页岩气网络复杂行为的深入见解。结果表明，页岩气产量最高的情况不一定是最有利可图的设计。钻探，压裂和CO ₂ 注入对这项技术的经济可行性具有重大影响。尤其是，由于成本高昂，除非使用CO ₂ 减税或补贴，否则使用CO ₂ 的增强气体回收（EGR）似乎不具有商业竞争力。隔离。研究还发现，设计和运营决策之间的相互作用非常重要，这些决策应同时进行优化。

As the demand for energy continues to increase, shale gas, as an unconventional source of methane (CH₄), shows great potential for commercialization. However, due to the ultra-low permeability of shale gas reservoirs, special procedures such as horizontal drilling, hydraulic fracturing, periodic well shut-in, and carbon dioxide (CO₂) injection may be required in order to boost gas production, maximize economic benefits, and ensure safe and environmentally sound operation. Although intensive research is devoted to this emerging technology, many researchers have studied shale gas design and operational decisions only in isolation. In fact, these decisions are highly interactive and should be considered simultaneously. Therefore, the research question addressed in this study includes interactions between design and operational decisions. In this paper, we first establish a full-physics model for a shale gas reservoir. Next, we conduct a sensitivity analysis of important design and operational decisions such as well length, well arrangement, number of fractures, fracture distance, CO₂ injection rate, and shut-in scheduling in order to gain in-depth insights into the complex behavior of shale gas networks. The results suggest that the case with the highest shale gas production may not necessarily be the most profitable design; and that drilling, fracturing, and CO₂ injection have great impacts on the economic viability of this technology. In particular, due to the high costs, enhanced gas recovery (EGR) using CO₂ does not appear to be commercially competitive, unless tax abatements or subsidies are available for CO₂ sequestration. It was also found that the interactions between design and operational decisions are significant and that these decisions should be optimized simultaneously.