摘要
DH油田1岩性段地层压力亏空大、注水压力高,急需采取有效的降压增注措施。针对1岩性段砂岩物性差、水平井段长的特点,在分析前期增注问题的基础上,开展了敏感性、润湿性、注水伤害模拟和酸化增注效果评价等室内实验,提出实现1岩性段增注的措施。对DH1-H15水平井进行多氢酸分流酸化改造,改造后注水情况表明,增注措施对DH油田1岩性段有较好的适用性。
The formation pressure depletion of DH oilfield 1 lithology is severe,injection pressure is high.There must have some effective messures to reduce the pressure to increase the injection.Aiming at the DH oilfield 1lithology＇s characteristics of bad physical property and long horizontal section,the writer conolucted sensitivity experiment,wetting experiment,injection damage simulation experiment,valuation experiment of acidizing effection.To increase the injection on the basis of analysing the injection problem,this paper proposed the messures to increase the horizontal well＇s injection.Multi-hydracid shunting acidizing was conducted on horizontal well DH1-H15,and the post-acidizing test indicates that the messrure to increase injection proposed by this paper is applicable to DH oilfield 1 lithology.
出处
《重庆科技学院学报（自然科学版）》
CAS
2011年第4期29-33,共5页
Journal of Chongqing University of Science and Technology：Natural Sciences Edition
关键词
增注
水平井
分流酸化
多氢酸
augmented injection
horizontal well
shunting acidizing
multi-hydracid
