无固相压井液抗高温性能研究  

Research on Temperature Resistance of the Clay-free Control Fluid

作　　者：党庆功[1] 李萌[1] 贾辉[1] 孙志成[1] 王倩[1] 

机构地区：[1]大庆石油学院石油工程学院,大庆163318

出　　处：《科学技术与工程》2010年第18期4483-4485,共3页Science Technology and Engineering

摘　　要：针对吉林气田目前使用的中浅层无固相压井液耐温能力差的缺陷,通过对高分子增黏剂和降滤失剂耐温性筛选以及对压井液体系高温稳定剂的研究,确定了耐高温无固相压井液的配方为:2.67%GWJ+1.67%ZN—1+2.0%KCl+0.7%A+0.05%BNP—10+0.1%KY—1+2.67%HS—1+一定量的NaCl、JZ—1。无固相压井液的耐温能力由70℃提高到了150℃,密度在1.1g/cm3—1.5g/cm3内可调,低滤失,对储层伤害小。The study is carried out the temperature resistance shortage of the clay-free control fluid used in the middle and shallow layer of Jilin field. Polymeric viscosifier,fluid loss additive and the temperature resistance of the control fluid are researched. The formula of thermostable clay-free control fluid system is also determined： H2O＋2.67%GWJ＋1.67% ZN—1＋2.0%KCl ＋0.7%A＋0.05%BNP-10＋0.1%KY—1＋2.67% HS—1＋a certain amount of NaCl and JZ—1. The temperature resistance is improved from 70℃ to 150℃. The density scope is 1.1 g/cm3—1.5 g/cm3. It shows great ability on low permeability and low reservoir damage.

关 键 词：无固相压井液 高温 低滤失 压井液处理剂 

分 类 号：TE254.4[石油与天然气工程—油气井工程]