CAJ | 학술논문

目前我国稠油开发以蒸汽吞吐为主，但随着蒸汽吞吐轮次的增加，周期产油量、油气比下降，含水率高，开采效果变差，且蒸汽吞吐采收率较低，一般在20％左右。针对这一问题，采取各种措施提高蒸汽吞吐后期的开采效果，主要包括多井整体吞吐、一注多采、复合蒸汽吞吐、蒸汽驱、蒸汽辅助重力泄油、火烧油层等热采技术和化学吞吐、CO2吞吐等冷采技术以及各种改善蒸汽吞吐效果的工艺措施。综述各种改善蒸汽吞吐效果的工艺技术及其增产机理，分析各种稠油开采技术存在的问题和不足，指出稠油复合开采及水平井应用是稠油开采的发展方向。
목전아국주유개발이증기탄토위주，단수착증기탄토륜차적증가，주기산유량、유기비하강，함수솔고，개채효과변차，차증기탄토채수솔교저，일반재20％좌우。침대저일문제，채취각충조시제고증기탄토후기적개채효과，주요포괄다정정체탄토、일주다채、복합증기탄토、증기구、증기보조중력설유、화소유층등열채기술화화학탄토、CO2탄토등랭채기술이급각충개선증기탄토효과적공예조시。종술각충개선증기탄토효과적공예기술급기증산궤리，분석각충주유개채기술존재적문제화불족，지출주유복합개채급수평정응용시주유개채적발전방향。
At present,steam huff and puff is a main way to develop heavy oil reservoirs in China.With huff-puff cycle time increases,periodic oil production and oil-steam ratio decrease,water cut goes up,and recovery effect becomes worse. Recovery rate of steam huff-puff is lower and about 20%in general.Aiming at the problem,various measures are taken to improve recovery effect at late stage of steam huff-puff.These measures mainly include multi-well cyclic steam stimula-tion,chemical or CO2 assisted steam huff-puff,steam flooding,steam assisted gravity drainage,chemical huff-puff,CO2 huff-puff,and so on.Based on the review of improving heavy oil recovery technologies and stimulation mechanisms,exist-ing problems and disadvantages of these technologies were analyzed and further developing direction of heavy oil recovery is the chemical or CO2 assisted steam huff-puff and the horizontal well technology.