Numerical simulation study of factors affecting production well gel treatment using linear models with crossflow
聚合物凝胶已被证实能够通过堵塞现有水突破通道来提高油田采收率。随后注入的水将被导向未被扫过的油藏部分，替换部分剩余油并增加采收率。在进行聚合物凝胶处理的试验之前，通常使用实验室实验和数值模拟来设计测试。理解影响聚合物凝胶处理的关键参数的物理意义，并将实验室数据和模拟器中的参数联系起来，对现场操作设计是有益的。本论文研究尝试使用CMG-STARS中的线性模型在不同条件下评估凝胶的性能，考虑了八个操作和岩石/聚合物凝胶相互作用属性。详细解释了每个变量及其对水和油产量的影响。在“有效期间”和“长期”分析了堵塞水和增加油的效果。
CMG软件的应用情况
CMG-STARS，一种先进的工业建模软件，用于化学品回收过程的模拟，被用来模拟凝胶对油藏性能的影响。研究详细阐述了参数，并调查了物理意义，提供了如何从实验室数据或计算中获得每个参数的清晰描述。
ABSTRACT
Conformance control is an inevitable topic related to water-flooding. Polymer gel has been proved to enhance oil recovery by blocking the existing water-breakthrough channels. Water that is injected subsequently will be directed to the unswept portion of the reservoir, replacing part of the remaining oil and increasing the oil-recovery factor. Prior to pilot tests of polymer gel treatment, laboratory experiments and numerical simulations are used to design the tests. Understanding physical meanings of key parameters that affect polymer gel treatment and relating the parameters from lab data and the simulator benefitfield operation design.
This thesis study tries to evaluate gel performance under different conditions using linear models in CMG-STARS. Eight operational and rock/polymer gel interaction properties are considered. Detailed interpretation of each variable and its influence on water and oil production are provided. Effects of blocking water and increasing oil are analyzed both in the ‘effective period’ and ‘in the long run’.
Simulator: STARS
