摘要
针对目前常规酸液缓速外加剂普遍存在泵入地层困难,二次伤害大等问题,从分子结构出发,合成了一种具有吸附作用的酸液缓速外加剂。采用CO2气体采集装置对外加剂延缓酸岩反应性能和缓速酸液的黏度进行了评价。结果表明,外加剂质量分数为0.5%时,缓速时间为140 min,酸液初始黏度为4.5 m Pa·s;酸岩反应过程中随着盐质量浓度和转子转速的逐渐增大,酸液缓速外加剂仍具有较好的缓速效果,并且外加剂与其他处理剂配伍性良好。
The conventional acid retarding additive has the difficulties in pumping into underlying layer and secondary injury problems. In this study, an acid retarding additive with absorption property is developed starting from the molecular structure. The retarding performance of acid-rock reaction and viscosity of acid viscosity are evaluated. The results show that the amount of acid retarding additive is 0. 5%. The retarding time and initial viscosity of the acid are 140 minutes and 4. 5 mPa.s ,respectively. As salt content and the rotational speed of rotor are gradually increased, acid retarding admixtures still have a good retarding effect and compatibility with other treatment agents in the process of reaction between acid and carbonate rock.
出处
《现代化工》
CAS
CSCD
北大核心
2015年第1期118-121,共4页
Modern Chemical Industry
基金
油气藏地质及开发工程国家重点实验室(西南石油大学)资助项目(PLN1312)
关键词
缓速外加剂
吸附
碳酸盐岩
缓速性能
retarding additive
adsorption
carbonate rock
retarding performance
