影响稠油乳状液表观黏度因素分析
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摘要
根据热采放喷期间采出液特征,采用滚动式加热炉模拟配制不同乳化温度下形成的油包水乳状液,通过流变仪、光学显微镜研究了乳化温度、含水率、实验测试温度对乳状液黏度的影响和乳状液的微观特性分析。结果表明,乳状液黏度随着乳化温度的升高先急剧增加后缓慢下降,乳状液含水率为30%～60%时,乳状液的乳化严重区间为90℃～150℃。乳状液的黏度随着含水率的升高而增加,随测试温度的升高而降低。含水率从30%增加至60%,油包水乳状液中液滴数量增多,液滴间距离减小,平均液滴直径增大。
Based on the properties of the liquid produced out of the thermal production wells during blow off period,W/O emulsions were prepared by roller reheating furnace at different simulated emulsifyng temperatures. Microcosmic properties of emulsion and emulsion viscosity affected by emulsifying temperature,moisture content,experiment temperature were studied.The results indicated that emulsion viscosity obviously increased and then decreased with increasing emulsifying temperature. The serious emulsifying interval of emulsion was at 90℃ ～ 150℃. Emulsion viscosity increased with the increase of moisture content and decreased with the increase in experiment temperature.When moisture content of W/O emulsion increased from 30% to60%,densities of water particles and the average droplet diameter increased while drop distance decreased.
Based on the properties of the liquid produced out of the thermal production wells during blow off period,W/O emulsions were prepared by roller reheating furnace at different simulated emulsifyng temperatures. Microcosmic properties of emulsion and emulsion viscosity affected by emulsifying temperature,moisture content,experiment temperature were studied.The results indicated that emulsion viscosity obviously increased and then decreased with increasing emulsifying temperature. The serious emulsifying interval of emulsion was at 90℃ ～ 150℃. Emulsion viscosity increased with the increase of moisture content and decreased with the increase in experiment temperature.When moisture content of W/O emulsion increased from 30% to60%,densities of water particles and the average droplet diameter increased while drop distance decreased.
引文
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[15]林海英,薛昕,李华春.沥青四组分和沥青的热失重分析[J].重庆交通大学学报(自然科学版),2009,28(4):708-710.
[2]林涛,孙永涛,马增华,等.多元热流体热采技术在海上探井测试中适应性研究[J].海洋石油,2012,32(2):51-53.
[3]陈明.海上稠油热采技术探索与实践[M].北京:石油工业出版社,2012:246-253.
[4]唐晓旭,马跃,孙永涛.海上稠油多元热流体吞吐工艺研究及现场试验[J].中国海上油气,2011,23(3):185-188.
[5]姜杰,李敬松,祁成祥,等.海上稠油多元热流体吞吐开采技术研究[J].油气藏评价与开发,2012,2(4):38-40.
[6]李萍,刘志龙,邹剑,等.渤海旅大27-2油田蒸汽吞吐先导试验注采工程[J].石油学报,2016,37(2):242-247.
[7]汪成,孙永涛,王少华,等.泡沫调剖辅助多元热流体吞吐研究与应用[J].钻采工艺,2017,40(1):102-104.
[8]刘义刚,王荣建,卢祥国,等.海上稠油油藏“调驱+热采”提高采收率实验研究[J].石油与天然气化工,2015,44(6):89-95.
[9]康万利,李金环,刘桂范.模拟油乳状液的制备及稳定性的研究[J].东北师大学报自然科学版,2005,37(2):76-79.
[10]孙春柳,康万利,刘卫东,等.影响原油乳状液稳定性的因素研究[J].石油天然气学报,2010,32(2):134-137.
[11]孟江,向阳,魏小林,等.高内相稠油油包水乳状液流变性研究[J].西南石油大学学报,2007,29(2):122-124.
[12]刘立伟,向问陶,张健.渤海油田原油乳状液流变性研究[J].西南石油大学学报(自然科学版),2010,32(6):143-146.
[13]蒋小华,王玮,宫敬.稠油包水乳状液的表观黏度[J].化工学报,2008,59(3):721-727.
[14]董巧玲,蒲春生,郑黎明,等.稠油W/O型乳状液表观黏度变化微观原因解析[J].陕西科技大学学报,2014,32(5):95-99.
[15]林海英,薛昕,李华春.沥青四组分和沥青的热失重分析[J].重庆交通大学学报(自然科学版),2009,28(4):708-710.