大庆石油地质与开发2013，Vol.32Issue(1)：137-141,5.DOI:10.3969/J.ISSN.1000-3754.2013.01.028
变参数酸蚀裂缝导流能力实验
FLOW CONDUCTIVITY EXPERIMENTS ON VARIABLE-PARAMETER ACID ETCHED FRACTURES
摘要
Abstract
The flow conductivity of an acid etched fracture is a crucial factor to evaluate the effects of acidizing and fracturing. The tests are conducted by fresh acid on the fixed experimental conditions. The results can only characterize the flow conductivity of the fractures near the borehole, so the accurate judgement of the stimulation effects is influenced. With the help of the experimental method of variable-parameter flow conductivity, the conductivities of the fractures along the direction of fracture lengths are researched under the conditions of the mass fractions, temperatures, flow rates, fracture widths of different acid liquids. The experimental results show that the highest conductivity appears in a certain domain away from the borehole. The changes of the mass fractions of the acid liquids along the directions are the main reason of resulting in the changes of the flow conductivity of the fractures, but the changes of the fracture widths and flow rates maybe cause the seriously reduction of the effective distance of acid-etched fractures. The tests prove that the comprehensive variation of the mass fraction, fracture width, injection rate and so on possess a great influence on the distribution of the acid-etched fracture conductivity along the fracture length.关键词
碳酸盐岩储层/压裂酸化/酸蚀裂缝导流能力/变参数/酸蚀缝长Key words
carbonate reservoir/ fracturing and acidizing/ flow conductivity of an acid etched fracture/ variable parameter/ acid etched fracture length分类
能源科技引用本文复制引用
何春明,郭建春,刘超..变参数酸蚀裂缝导流能力实验[J].大庆石油地质与开发,2013,32(1):137-141,5.基金项目
国家自然科学基金项目"油气层岩矿酸损伤理论研究"(51074138). （51074138）
