CAJ | 학술논문

针对河南特稠油开采难题研制出耐高温复合降黏剂WP,其既可随高温蒸汽注入井下实现蒸汽吞吐、蒸汽驱采油,也可随热水注入井下达到热水驱采油,能有效降低油水界面张力,其所形成的特稠油乳状液在高温和常温下均能保持低黏度和均匀稳定性,为实现特稠油乳化降黏低温开采和常温输送提供了依据。实验结果表明:WP加入量为0.128 mg(以每克特稠油计)时,30℃时可使2#河南特稠油的黏度由252.0 Pa.s降至其乳状液时的9.6 mPa.s,降黏率达99.99%;考察了WP的耐高温性能以及影响WP表面性能和降黏性能的因素,并初步探讨了其表面性能和降黏性能的关系,对WP的降黏机理及其所形成特稠油乳状液的稳定机理也进行了探讨。
침대하남특주유개채난제연제출내고온복합강점제WP,기기가수고온증기주입정하실현증기탄토、증기구채유,야가수열수주입정하체도열수구채유,능유효강저유수계면장력,기소형성적특주유유상액재고온화상온하균능보지저점도화균균은정성,위실현특주유유화강점저온개채화상온수송제공료의거。실험결과표명:WP가입량위0.128 mg(이매극특주유계)시,30℃시가사2#하남특주유적점도유252.0 Pa.s강지기유상액시적9.6 mPa.s,강점솔체99.99%;고찰료WP적내고온성능이급영향WP표면성능화강점성능적인소,병초보탐토료기표면성능화강점성능적관계,대WP적강점궤리급기소형성특주유유상액적은정궤리야진행료탐토。
A high temperature resistant composite for viscosity-reducer,WP,is developed to solve the problem of extra-viscous oil extraction,which is suitable for oil production of steam stimulation,steam and hot water flooding.WP can reduce the oil-water interfacial tension remarkably,and the formed crude emulsions have a low viscosity and are stable for both high and normal temperatures.It provides basis for realizing the recovery in low-temperatures and transportation in normal-temperature of extra-viscous oils,ene...