The crosslinked polymer gel systems are most widely used as injection fluids for the maintenance of adequate mobility control and favorable permeability profiles within the reservoir. The application of these systems requires careful monitoring of the gelation behavior to avoid premature gelation or prolongs shut-in times under reservoir conditions. The paper deals with the investigation of disproportionate permeability reduction (DPR) of reservoir rock using partially hydrolyzed polyacrylamide–hexamine–pyrocatechol gels. Mutual correlation was observed between gelation time of the developed organic polymer gel in bulk gelation studies and other parameters such as the concentration of polymer and crosslinkers as well as temperature. An increase in gelation time was observed with the increase in the concentration of polymer and crosslinkers as well as temperature. The stability of the developed polymer gel was observed at the polymer and crosslinker concentration from 0.9 to 1.1 and from 0.3 to 0.5 wt.%, respectively. The thermal stability of the developed polymer gel was exhibited at a higher temperature of about 120 °C. The stabilized polymer gel was used for in situ gelation study to evaluate the plugging ability of the polymer gel in sand pack. In situ gelation studies showed a good injectivity and plugging ability with potentiality for the DPR in the oil fields.

交联的聚合物凝胶体系最广泛地用作注入流体，以维持储层内足够的流动性控制和有利的渗透率分布。这些系统的应用需要仔细监测胶凝行为，以避免过早胶凝或在储层条件下延长关闭时间。本文研究了使用部分水解的聚丙烯酰胺-六胺-邻苯二酚凝胶对储集岩不成比例的渗透率降低（DPR）的研究。在本体凝胶研究中，观察到已开发的有机聚合物凝胶的凝胶时间与其他参数（例如聚合物和交联剂的浓度以及温度）之间存在相互关系。随着聚合物和交联剂的浓度以及温度的增加，观察到胶凝时间的增加。在聚合物和交联剂的浓度分别为0.9至1.1和0.3至0.5重量％时，观察到显影的聚合物凝胶的稳定性。在约120℃的较高温度下显示出所开发的聚合物凝胶的热稳定性。稳定的聚合物凝胶用于原位凝胶研究，以评估聚合物凝胶在沙堆中的堵塞能力。原位胶凝研究显示出良好的注入性和封堵能力，在油田中具有潜在的DPR潜力。在约120℃的较高温度下显示出所开发的聚合物凝胶的热稳定性。稳定的聚合物凝胶用于原位凝胶研究，以评估聚合物凝胶在沙堆中的堵塞能力。原位胶凝研究显示出良好的注入性和封堵能力，在油田中具有潜在的DPR潜力。在约120℃的较高温度下显示出所开发的聚合物凝胶的热稳定性。稳定的聚合物凝胶用于原位凝胶研究，以评估聚合物凝胶在沙堆中的堵塞能力。原位胶凝研究显示出良好的注入性和封堵能力，在油田中具有DPR的潜力。