CAJ | 학술논문

多重乳液因为具有独特的“两膜三相”的多隔室结构,使得交联剂和聚合物溶解在不同相中,起到延缓交联的作用,可用于油田采油后期深部调剖堵水作业,以提高原油采收率。本文采用用两步法制备了一种稳定的W/O/W型多重乳状液延缓交联体系,并对其在大庆地层条件下成胶性能进行室内静态评价。通过正交试验得到多重乳化最佳工艺条件：W/O乳液在WSpan80=2．8%,Wresidual=5%,VOil∶VWater=3∶7,T=2．5min条件下制备；W/O/W乳液在VW/O∶VHPAM=7∶3,W Tween80=1．5%,R=4000r·min-1,T=3．0min条件下制备。在pH=8时所合成的柴油/渣油多重乳液延缓铬溶胶交联体系成胶时间为480h,冻胶强度为28354mPa·s。
다중유액인위구유독특적“량막삼상”적다격실결구,사득교련제화취합물용해재불동상중,기도연완교련적작용,가용우유전채유후기심부조부도수작업,이제고원유채수솔。본문채용용량보법제비료일충은정적W/O/W형다중유상액연완교련체계,병대기재대경지층조건하성효성능진행실내정태평개。통과정교시험득도다중유화최가공예조건：W/O유액재WSpan80=2．8%,Wresidual=5%,VOil∶VWater=3∶7,T=2．5min조건하제비；W/O/W유액재VW/O∶VHPAM=7∶3,W Tween80=1．5%,R=4000r·min-1,T=3．0min조건하제비。재pH=8시소합성적시유/사유다중유액연완락용효교련체계성효시간위480h,동효강도위28354mPa·s。
The multiple emulsion with"Three-phase with two layer"structure can make Crosslinkers and polymers dissolved in dif-ferent phases. This unique structure plays an important role in delaying the cross-linking which can be used for later period of oil field in order to enhance oil recovery. In this paper, two-step method were used to prepared a stable W/O/W multiple emulsion cross linking system and evaluated properties by static evaluation method. The optimal conditions to form multiple emulsion were found by using orthogonal experiment. The W/O emulsion were prepared under conditions W Span80=2. 8%,Wresidual oil=5%,VOil∶VWater=3∶7,T=2. 5min;The W/O/W emulsion were prepared by VW/O∶VHPAM=7∶3,WTween80=1. 5%,R=4000r·min-1 ,T=3. 0min. This system were take 480h to form chromium gel and the jelly strength could be reached 28354mPa·s when pH is 8.