西南石油大学学报（自然科学版）2013，Vol.35Issue(2)：109-114,6.DOI:10.3863/j.issn.1674-5086.2013.02.016
遇水膨胀封隔器分段酸压技术及应用
Technology and Application of Multi-stage Acid Fracturing by Water-swelling Packer
摘要
Abstract
The ordovician carbonate reservoir of one oilfield in the northwest of China,is mainly fracture cavern,with the reservoir features of ultra-deep,high pressure and high temperature; the effect of horizontal conventional acid fracturing is very limited,and there are still difficulties in the selection of multi-stage stimulation methods and tools.This paper introduces the technical principle,key technical aspects,operation program and tool performance of multi-stage acid fracturing by waterswelling packers.Based on actual drilling/mud logging/logging data and the optimized stages of multi-stage acid fracturing,and in combination with the characteristics of reservoir fractures and solution caves,as well as the requirements of completion tools on borehole diameter and trajectory,We determine the completion program of multi-stage acid fracturing,optimize the RIH and inflation setting time of packers,and improve the multi-stage acid fracturing design and complete field test,under the principle of effective stimulation and favorable reservoirs.The field test results show that the completion program of multi-stage acid fracturing and optimized acid fracturing design are both correct,but the quality of tools like ball injection sliding sleeve and the quality control in acid fracturing completion still need to be improved.关键词
遇水膨胀封隔器/碳酸盐岩油藏/水平井/分段酸压Key words
water-swelling packer/ carbonate reservoir/ horizontal well/ multistage acid fracturing分类
能源科技引用本文复制引用
张波,薛承瑾,周林波,张烨..遇水膨胀封隔器分段酸压技术及应用[J].西南石油大学学报（自然科学版）,2013,35(2):109-114,6.基金项目
国家重大科技专项"大型油气田及煤层气开发"(2011ZX05014). （2011ZX05014）
