弱碱复合驱用石油羧酸盐研制及其性能评价  

DEVELOPMENT OF THE PETROLEUM CARBOXYLATE AND ITS PROPERTY EVALUATION FOR WEAK-BASE COMPLEX FLOODING

作　　者：徐艳姝[1] 

机构地区：[1]大庆油田有限责任公司勘探开发研究院

出　　处：《大庆石油地质与开发》2013年第6期108-111,共4页Petroleum Geology & Oilfield Development in Daqing

基　　金：中国石油天然气股份有限公司重大科技专项“大庆油田原油4 000×10~4t持续稳产关键技术研究”(2008E1206)

摘　　要：以大庆减压馏分油为原料，采用新型复合催化剂和氧化磺化联合新工艺，合成了弱碱石油羧酸盐小试产品，并对其进行界面活性、稳定性、吸附及驱油效果等项性能的评价。研究结果表明：石油羧酸盐小试产品可在较宽的表面活性剂质量浓度和Na2CO，质量浓度区间内与大庆原油形成10-3mN／m数量级的超低界面张力，其复合体系具有较好的界面张力、黏度稳定性和抗吸附性能；室内天然岩心平均驱油效率比水驱提高17．13％。Taking Daqing vacuum distillate oil as the raw material, the small-pilot product of weak-base petroleum carboxylate is synthesized by new-type complex catalyst and the new technology of oxidized-sulfonated combination. At the same time, the performances such as the interficial tension, stability, adsorption, oil displacing effects of the product are evaluated. The studies show that the ultra-low IFT with the size of 10-3mN/m can be produced with Daqing crude oil within the pretty wider mass concentration of the surfactant and NaECO3 for the product, and more- over there are much better IFF, viscosity stability and anti-adsorption properties in the complex system; the average oil flooded efficiency of indoor natural cores is enhanced by 17.1% than that of water flooding.

关 键 词：弱减 石油羧酸盐 研制 性能 

分 类 号：TE355[石油与天然气工程—油气田开发工程]