KMK油田稠油热化学采油体系研究

Research on Thermo-Chemical Production System of Heavy Oil in KMK Oilfield

安志杰

AN Zhi-Jie

本文结合哈萨克斯坦KMK油田的油藏特征和油品特性，通过室内实验，对热化学反应过程中的两个主要影响因素（引发剂浓度、体系起始温度）进行了针对性的研究，室内评价了药剂对KMK油田原油的降黏效果。研究结果表明，在实验范围内，引发剂浓度越高，体系的反应速度越快，温度的增幅越高；体系起始温度越高，体系的反应速度越快，产生气体的体积越大；体系反应放出的热量可使预处理井段中的原油黏度降低和有机物溶解，改善了原油流动性，提高了原油采收率。室内模拟评价实验结果表明，稠油热化学开采技术在KMK油田现场应用将取得显著增产效果。图3表2参6

In this paper,in view of the properties of reservoir and oil in KMK oilfield of Kazakhstan,the major factors influencing the reaction process,including the concentration of the initiator and the initial temperature,were researched through the laboratory experiments,and the effects of thermo-chemical reaction on the viscosity reduction of the KMK crude oil were evaluated.The results showed that,the higher the concentration of initiator was,the faster the reaction velocity was and the higher the peak temperature was;the higher the initial temperature was,the more the gas volume was.In the pretreatment section,the heat released from the system reaction could reduce the viscosity of the crude oil and dissolve the organic substances to improve the oil flowability and enhance the oil recovery.The results of the simulation experiments indicated that significant effects in KMK oilfield would be achieved by adopting the heavy oil thermo-chemical production technology.