Shi Huaizhong, Li Gensheng, He Zhenguo, Wang Haizhu, Zhang Shikun
State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum, Beijing 102249, China.
PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, China.
Rev Sci Instrum. 2016 Dec;87(12):125115. doi: 10.1063/1.4972885.
With the commercial extraction of hydrocarbons in shale and tight reservoirs, efficient methods are needed to accelerate developing process. Supercritical CO (SC-CO) jet has been considered as a potential way due to its unique fluid properties. In this article, a new setup is designed for laboratory experiment to research the SC-CO jet's characteristics in different jet temperatures, pressures, standoff distances, ambient pressures, etc. The setup is composed of five modules, including SC-CO generation system, pure SC-CO jet system, abrasive SC-CO jet system, CO recovery system, and data acquisition system. Now, a series of rock perforating (or case cutting) experiments have been successfully conducted using the setup about pure and abrasive SC-CO jet, and the results have proven the great perforating efficiency of SC-CO jet and the applications of this setup.
随着页岩和致密油藏中碳氢化合物的商业开采，需要高效的方法来加速开发进程。超临界CO₂（SC-CO₂）射流因其独特的流体特性而被视为一种潜在的方法。在本文中，设计了一种用于实验室实验的新装置，以研究SC-CO₂射流在不同射流温度、压力、靶距、环境压力等条件下的特性。该装置由五个模块组成，包括SC-CO₂生成系统、纯SC-CO₂射流系统、磨料SC-CO₂射流系统、CO₂回收系统和数据采集系统。目前，已使用该装置对纯SC-CO₂射流和磨料SC-CO₂射流成功进行了一系列岩石穿孔（或切割）实验，结果证明了SC-CO₂射流具有很高的穿孔效率以及该装置的实用性。
