Heavy oil extraction currently presents economic and environmental challenges due to low prices and costly energy usage for their exploitation and transport. The use of heavy oil as a sustainable source of energy requires novel and well-engineered technologies. In-Situ (in-reservoir) Upgrading Technology, ISUT, is an EOR-Upgrading process that combines the use of a hot dense fluid (i.e., vacuum distillation residue), hydrogen, and a nanocatalyst as upgrading agents. The operating control of this technology requires performance assessment and kinetic database for each application and each type of reservoir with specific rock-oil in place characteristics. In this work, a hydrocracking kinetic study is developed based on experiments carried out in a dolomite corepack using temperatures from 335 °C to 365 °C, residence times of 12 h–72 h under the constant pressure of 10 MPag, which are the typical ISUT's conditions for carbonate reservoirs. By using kinetic modeling, the operating temperatures were compared with a previous kinetic model, finding similar yields/reaction time performance results. Scanning Electron Microscopy (SEM) and Energy-Dispersive X-ray spectroscopy (EDX) techniques were used to analyze the nanocatalyst particles on the dolomite corepack's surface. The nanocatalysts deposited on the rock were in the range of 13 nm–1220 nm with two types, spherical- and agglomerated-shaped. The X-Ray Fluorescence Spectroscopy (XRF) was also used to determine metal content distributions along the corepack. Finally, ISUT's kinetic modeling studies so far, and this one, suggest the convenience of using the same model for the reservoirs studies, which include the effects of the conditions such as temperature, pressure or residence time used during ISUT's process application.

由于重油的开采和运输价格低廉且能源消耗高昂，目前重油开采面临着经济和环境挑战。使用重油作为可持续的能源需要新颖且设计精良的技术。原位（储层）升级技术ISUT是一种EOR升级过程，结合了使用热稠密流体（即真空蒸馏残渣），氢气和纳米催化剂作为升级剂的方法。该技术的运行控制需要针对每种应用和每种类型的具有特定岩石油特性的油藏进行性能评估和动力学数据库。在这项工作中，基于在白云岩岩心包中使用335°C至365°C的温度进行的实验，开展了加氢裂化动力学研究，在10 MPag的恒定压力下，停留时间为12 h至72 h，这是碳酸盐岩储层典型的ISUT条件。通过使用动力学模型，将操作温度与先前的动力学模型进行了比较，发现了相似的产率/反应时间性能结果。扫描电子显微镜（SEM）和能量色散X射线光谱（EDX）技术用于分析白云岩芯块表面上的纳米催化剂颗粒。沉积在岩石上的纳米催化剂在13 nm至1220 nm范围内，有球形和团聚两种类型。X射线荧光光谱法（XRF）也用于确定沿核心包的金属含量分布。最后，到目前为止，ISUT的动力学建模研究是这样的，