当代化工
噹代化工
당대화공
CONTEMPORARY CHEMICAL INDUSTRY
2014年
10期
2122-2125
,共4页
稠油油藏%辅助蒸汽吞吐%增产机理认识%矿场试验
稠油油藏%輔助蒸汽吞吐%增產機理認識%礦場試驗
주유유장%보조증기탄토%증산궤리인식%광장시험
Heavy oil reservoir%Assisted steam stimulation%Production mechanism%Field test
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。
稠油註空氣輔助蒸汽吞吐增產機理主要為提高地層壓力，增壓助排，同時還具有降粘、重力驅替、擴大加熱腔等輔助增產作用。物模實驗錶明，對比單一蒸汽吞吐，輔助空氣後模型壓力降低幅度明顯減緩，週期產油量平均上升、採油速度平均和階段採收率均提高。礦場試驗錶明措施後油井日產油能力提高，油汽比上升，增產效果明顯。
주유주공기보조증기탄토증산궤리주요위제고지층압력，증압조배，동시환구유강점、중력구체、확대가열강등보조증산작용。물모실험표명，대비단일증기탄토，보조공기후모형압력강저폭도명현감완，주기산유량평균상승、채유속도평균화계단채수솔균제고。광장시험표명조시후유정일산유능력제고，유기비상승，증산효과명현。
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.
