油溶性树脂暂堵剂室内评价技术研究

RESEARCH OF THE LAB EVALUATION TECHNIQUE ABOUT OIL DISSOLVE RESIN TEMPORARY PLUGGING AGENT

暂堵技术是在修井作业过程中保护油气层的一种有效方法。主要从油溶性树脂暂堵剂优选的室内评价入手，研究了影响地层渗透率恢复率的暂堵剂油溶率、暂堵剂颗粒粒径、地层温度、暂堵压差、暂堵时间、反排压差、重复暂堵、地层渗透率等因素，同时对有效暂堵时间、暂堵深度、暂堵强度等进行了研究，建立了一套油溶性树脂暂堵剂室内评价方法，为矿场实践提供技术指导。

Temporary plugging technology is one of the valid methods of reservoir protection during the workover job. From the Lab valuation of the optimization of oil dissolve resin temporary plugging agent (ODRTPA), this paper studies the main factors which effect the restoring rate of formation permeability, such as the rate of oil dissolve, the particle diameter of temporary plugging agent, formation temperature and permeability, temporary plugging pressure and time, retemporary plugging and so on. At the same time, this paper also researched the valid temporary plugging time, deepth and strength. A suit of lab evaluation method of ODRTPA was set up, which can provide technology guide to field practice.