摘要
阐述了一种低渗欠注井酸化增注的系统实验研究方法,通过酸化前储层评估、储层敏感性研究、长短岩心流动模拟试验,结合19FNMR残酸离子测试分析、酸化工艺参数优选、现场实施后评估技术等,有针对性地对低渗欠注井进行酸化解堵,该系统方法应用于油田取得了较好的效果。
Systematic laboratory research methods of acidiza-tion stimulation in under-injected wells with low permeability are introduced in this paper. Acidization and unplugging operation can be carried out pertinently in under-injected wells with low permeability through reservoir evaluation before acidization operation, reservoir sensitivity study, long and short core flow modeling experiment in combination with FNMR residual acidization testing, selection of technological parameters of acidization and evaluation after field operation. Application of these methods in oilfields have achieved good results.
出处
《河南石油》
2002年第2期12-17,共6页
Henan Petroleum
关键词
低渗
欠注井
砂岩基质酸化
长岩心流动模拟试验
^19FNMR
low permeability, under-injected well, sandstone matrix acidization, long core flow modeling experiment, FNMR
