HPAM/Cr^(3+)冻胶压裂液的低温破胶体系  

A LOW TEMPERATURE BREAKER SYSTEM FOR HPAM/Cr^(3+) GEL FRACTURING FLUIDS

作　　者：徐晓峰[1] 蒲万芬[1] 杨燕[1] 赵金洲[1] 

机构地区：[1]西南石油学院石油工程学院,四川成都610500

出　　处：《西南石油学院学报》2005年第2期64-65,共2页Journal of Southwest Petroleum Institute

摘　　要：HPAM/Cr3+冻胶压裂液是一种报道较少的压裂液体系,该压裂液具有增粘能力强、携砂性好、摩阻低、冻胶水化破胶后残渣少等优点。但在低温条件下,聚丙烯酰胺可控制性降解比较困难,限制了在油田上的应用。考察了破胶剂的低温破胶性能;研究了影响该压裂液的低温破胶性能的影响因素;提出了用于低温地层的破胶体系配方。该体系可在低温(30℃)下破胶。It is seldom reported about HPAM/Cr^(3+) gel fracturing fluid system. The system has strong ability of increasing viscosity, good prop-carrying capacity, low frictional resistance, less residue after gel-breaking and so on. However, at low temperature, the controllable degradation of polyacrylamide is in difficulty, and its application in oil field has been restricted. In this paper, we have investigated the gel-breaking capacity of the breaker at low temperature, factors that influence gel-breaking capacity of the fracturing fluid and put forward a gel-breaking system used in low temperature formation. The system can break gel at low temperature of 30℃.

关 键 词：HPAM/Cr^3+冻胶压裂液 破胶 低温 体系 

分 类 号：TE357.12[石油与天然气工程—油气田开发工程]