酸液浓度对酸压改造效果影响实验研究——以胶凝酸为例  

Acid Concentration of Acid Fracturing Modification Effects on Experimental Study——Take Gelled Acid for Example

作　　者：孙骏[1] 伊向艺[1,2] 戴亚婷 姬伟 陈坤 吴元琴[1] 

机构地区：[1]成都理工大学能源学院 [2]油气藏地质及开发工程国家重点实验室(成都理工大学),成都610059 [3]长庆油田公司第一采油厂采油工艺研究所,延安716000 [4]中石化西南工程有限公司四川钻井分公司,德阳618000

出　　处：《科学技术与工程》2014年第33期196-200,206,共6页Science Technology and Engineering

摘　　要：目前酸压是国内油田针对碳酸盐岩储层改造手段最常用的手段之一,而胶凝酸是最常用的酸化压裂液之一。合适的酸液浓度不仅能取得很好的增产效果,也能较好的降低经济成本。针对利用室内实验研究胶凝酸不同浓度对酸岩反应速率、滤失速率、酸蚀后导流能力的影响,并利用Fracpro PT软件模拟,通过实验手段来进行研究分析酸液浓度对酸压改造形成的影响,通过优化酸压施工设计方案来寻找最优酸液浓度提高酸压施工效果,对以后的压裂设计和现场施工都有着更长远的指导意义。Acid fracturing is one of the most commonly used treatments for carbonate reservoir stimulation at home,and gelled acid is one of the most common fluids for acid fracturing. Appropriate acid concentration can not only obtain good stimulation effect but also can reduce economic cost. This paper mainly aims at the indoor experimental research on the effect of different gelled acid concentrations on acid-rock reaction rate,filtration rate,and acid etched fracture conductivity,and uses Fracpro PT to simulate the effect of acid concentration on acid fracturing treatment and optimize construction program design to get the optimal acid concentration to improve treatment efficiency. It has long-term guiding significance for later acid fracturing design and site operation.

关 键 词：酸压 胶凝酸 最优酸液浓度 FracproPT 

分 类 号：TE357[石油与天然气工程—油气田开发工程]