碳酸盐岩储层改造用自生酸技术  

Authigenic Acid Technology in Carbonate Reservoir Fracturing

作　　者：潘宝风[1] 杨东梅[1] 刘徐慧[1] 陈颖袆 李洪波[1] 

机构地区：[1]中石化西南油气分公司工程技术研究院,四川德阳618000

出　　处：《广东化工》2013年第7期84-84,90,共2页Guangdong Chemical Industry

基　　金：国家科技重大专项"大型油气田及煤层气开发"(2008ZX050)专题"深度酸压工艺技术研究"(2008ZX05014-006-004)

摘　　要：针对油气藏深层海相碳酸盐岩储层酸化改造难点,介绍了相关自生酸体系种类、发展现状,并指出耐高温深穿透自生盐酸是未来碳酸盐岩储层改造自生酸技术发展趋势,体系需具有两个明显特点:(1)低温下体系不显酸性或酸性较弱,有利于降低井下管柱腐蚀速率,而在高温下则产酸浓度高,提高岩心溶蚀率;(2)高温下酸岩反应缓速效应明显,可增大酸蚀作用距离,提高酸压效果。There are some difficulties in acidizing fracturing of marine carbonate hydrocarbon reservoir, such as fast acid/rock reaction and pipe corrosion etc. The authigenic acid system types and development are introduced, it is emphasized that authigenic hydrochloric acid with high temperature resistant and deep penetration is the technology development trend. Authigenic acid systems have two obvious characteristics： （1） It is advantage to reduce the down-hole string corrosion rate for no/low acidic system, while it is advantage to improve core corrosion rate the acid for high acid concentration in high temperature. （2）It is anvantage to increase acid effect distance for retarding low acid/rock reaction in high temperature.

关 键 词：碳酸盐岩 高温 酸化 自生酸 

分 类 号：O65[理学—分析化学]