聚驱/调驱井解堵增注技术研究与应用  

Research and application of polymer broken down and water injectivity technology

作　　者：蔡莹莹[1] 陈小凯[2] 曾双红[2] 杨连行[2] 谷雨[3] 

机构地区：[1]塔里木油田分公司油气工程研究院,新疆库尔勒841000 [2]辽河油田分公司钻采工艺研究院.辽宁盘锦124010 [3]华北油田分公司第一采油厂,河北任丘062550

出　　处：《化学工程师》2017年第5期60-63,45,共5页Chemical Engineer

摘　　要：针对LN油田深部调驱技术应用过程中聚合物堵塞导致的水井注入压力上升过快,欠注等现象,筛选出强氧化剂二氧化氯,将酸化和氧化原理结合形成复合解堵增注技术。通过室内实验,复合解堵剂不仅能解除无机物堵塞,而且能有效解除聚合物、聚合物凝胶、细菌和Fe SO4等的有机物堵塞,有效解决地层堵塞造成的注入压力上升过快,配注不达标,间歇注入等问题,为LN油田高效开发和产量的持续稳定提供技术支持。Aiming at the problem of rapid increase of water injection pressure and short shots because of poly- mer blockages in the process of chemical flooding in LN oil field, the authors select strong oxidant of chlorine dioxide, combine the principle of acidification and oxidation to form compound plugging and injection technology. Through indoor experiments, the composite plugging agent cann＇t only remove inorganic plugging, and can effec- tively remove organic polymer, polymer gel, bacteria and ferrous sulfide, effectively solve rapid increase of water injection pressure,short shots and intermittent injection because of polymer blockages,and provide technical support for the continued stability of LN Oilfield efficient development and production.

关 键 词：聚合物驱 化学驱 解堵 增注 二氧化氯 

分 类 号：O616[理学—无机化学]