苏里格气田压裂液体系的改进与完善  

Improving and Perfecting the System of Fracturing Fluid in Sulige Gas Field

作　　者：赵振峰[1,2] 王小朵[2] 张燕明[2] 刘静[2] 刘建安[2] 

机构地区：[1]石油大学（北京） [2]长庆油田分公司油气工艺技术研究院

出　　处：《低渗透油气田》2005年第3期38-40,31,共4页

摘　　要：针对苏里格气田地质特点，本文着重阐述了温度稳定剂TA-1作用原理，实验结果表明．TA-1浓度为0．1％时，压裂液最高可承受116．3℃高温，完全满足苏里格区块对压裂液耐温性能的要求；100℃下，压裂液粘度保持100mPa．s以上的时间延长了30分钟左右，显著提高了压裂液的携砂性能。结合对储层粘土矿物的分析。筛选并评价了粘土稳定剂的长效性，粘土稳定剂COP-1与KCl复合使压裂液对储层伤害最小，最后对胶囊破胶剂（LZEN）与常规破胶剂（APS）复配破胶剂进行了破胶性能评价，并对二种破胶剂整合的比例进行了优化．破胶性能完全满足压裂要求。As far as geologic characteristic is concerted, action principle of temperature tolerance TA-1 is introduced. The result of experiment indicates that fracturing fluid enduring the highest temperature is 116.3℃, which meets with demand to temperature tolerance performance in Sulige Gas Field; time that viscosity of fracturing fluid holds 100mPa.s is delayed 30min.Carring sand performance is enhanced dramatically. On the basis of analysis of clay miner, clay stabilizer is optimized. Clay stabilizer to long residual action is evaluated. The clay stabilizer of composite COP-1 to KCL realizes that the fracturing fluid damage to reservoir is the lowest. At last, the breaker of composite LZEN to APS breaking performance is evaluated, and the proportion is optimized. The new system of fracturing fluid breaking performance meets with demand to breaking gel.

关 键 词：耐温性 压裂液 粘土稳定剂 温度稳定剂 

分 类 号：TE357.12[石油与天然气工程—油气田开发工程] P618.13[天文地球—矿床学]