压裂破胶酶产生菌的筛选及其性能评价  

Isolation of a Gel-break Enzyme Producing Strain and Study of Its Partial Properties

作　　者：郝滨[1] 吴晓玲[1] 李彩风[1] 

机构地区：[1]中国石化胜利油田公司采油工艺研究院,山东东营257000

出　　处：《山东轻工业学院学报（自然科学版）》2012年第4期61-63,共3页Journal of Shandong Polytechnic University

摘　　要：从胜利油田筛选得到高温压裂破胶酶产生菌一株,命名为SL2-1。经实验测定,该菌产生的酶对胍胶的最适作用温度为60～70℃,最适pH为7。在40～90℃,pH 4～8的范围内降粘率可达80%以上。在60～70℃保温120 min活性降低小于10%,90℃保温120 min活性降低小于50%。A thermostabilized Gel-break Enzyme producing strain,named SL2-1,was obtained from product water from Shengli Oil Field and.The optimal pH and temperature is 7 and 60~70 ℃,respectively,when Guar Gam as substrate.From 40~90 ℃ and pH 4~8,its viscosity degarade rate is over 80%.Its activity loses below 10% while incubated at 60~70 ℃ for 120 min,and below 50% at 90 ℃.

关 键 词：胍胶 压裂破胶 压裂破胶酶 菌株选育 

分 类 号：TE357.9[石油与天然气工程—油气田开发工程]