Abstract Breakthrough pressure is a key parameter of the caprock sealing ability for gas reservoirs. It has also become an important parameter for gas production from tight reservoirs, such as shale gas reservoirs, as water in these tight formations may require gas to overcome the breakthrough pressure before being produced. Laboratory measurement is essential to obtain the breakthrough pressure because no field methods can accurately estimate it. In this review article, the definition, the experimental methods, and experimental data for breakthrough pressure on tight rocks are reviewed. The advantages and issues of each experimental method are discussed. Furthermore, the relationships between breakthrough pressure and rock properties, especially its permeability, are investigated. It is found that breakthrough pressure has a close relationship with pore structure and most of the experimental data show that it has a power law relationship with absolute permeability. Moreover, water saturation, gas type, and effective stress are all found to have an impact on the breakthrough pressure. Finally, future research topics are proposed, including investigating sample length on breakthrough pressure measurement and developing more theoretically based models for breakthrough pressure with regards to absolute permeability or other measurable rock properties.

中文翻译：

---

致密岩石气体突破压力：实验方法和数据回顾

摘要 突破压力是气藏盖层封闭能力的关键参数。它也已成为从致密储层（例如页岩气藏）生产天然气的重要参数，因为这些致密地层中的水可能需要气体在生产之前克服突破压力。实验室测量对于获得突破压力至关重要，因为没有现场方法可以准确地估计它。在这篇综述文章中，综述了致密岩石突破压力的定义、实验方法和实验数据。讨论了每种实验方法的优点和问题。此外，研究了突破压力与岩石特性，尤其是其渗透率之间的关系。发现突破压力与孔隙结构有着密切的关系，大部分实验数据表明它与绝对渗透率存在幂律关系。此外，发现含水饱和度、气体类型和有效应力都对突破压力有影响。最后，提出了未来的研究课题，包括研究突破压力测量的样本长度，以及开发更多基于理论的突破压力模型，涉及绝对渗透率或其他可测量的岩石特性。