摘要
稠油注空气辅助蒸汽吞吐增产机理主要为提高地层压力,增压助排,同时还具有降粘、重力驱替、扩大加热腔等辅助增产作用。物模实验表明,对比单一蒸汽吞吐,辅助空气后模型压力降低幅度明显减缓,周期产油量平均上升、采油速度平均和阶段采收率均提高。矿场试验表明措施后油井日产油能力提高,油汽比上升,增产效果明显。
The mechanism of injected air assisted steam stimulationin heavy oil reservoirsis toimprove the formation pressure,pressurizeforcleanup,reduceviscosityand enlargethe heating cavity. Physical model experiment shows that, comparedwiththe single steam huffand puff, the auxiliary air model pressuredropratecansignificantlyreduce, periodic oil productioncanrise, oil production rate andrecoverycanincrease. After the implementation of air injection assisted steam stimulation, oil well measureeffect isobvious; the specific performance improvesdaily oil capacity.
出处
《当代化工》
CAS
2014年第10期2122-2125,共4页
Contemporary Chemical Industry
关键词
稠油油藏
辅助蒸汽吞吐
增产机理认识
矿场试验
Heavy oil reservoir
Assisted steam stimulation
Production mechanism
Field test
