摘要
超稠油蒸汽吞吐开采,存在周期生产时间短,周期产油量低,油汽比低的问题,吞吐采收率一般低于25%。对辽河油区曙一区杜84块超稠油产能接替研究表明,双水平井SAGD技术能较好地应用于该块超稠油开发,最终采收率可达45.6%,可以作为超稠油蒸汽吞吐开采后期有效的产能接替技术,具有广阔的应用前景。
Producing ultra heavy oil by cyclic steam stimulation is characterized by short producing period,low periodic production rate and high steam/oil ratio,recovery factor generally lower than 25%.Study of production capacity superseding in Du84 ultra heavy oil block in Shu 1 area of Liaohe oil province has shown that dual horizontal well SAGD technology will be effective for the development of this block,and the ultimate recovery factor may reach 45.6%.The technology,with a broad prospect of application,can be used as an effective superseding technology in the late stage of cyclic steam stimulation for recovering ultra heavy oil.
出处
《特种油气藏》
CAS
CSCD
2007年第1期55-57,65,共4页
Special Oil & Gas Reservoirs
关键词
超稠油
双水平井
SAGD
采收率
曙一区
辽河油区
ultra heavy oil
dual horizontal well
SAGD
recovery factor
Shu1 Area
Liaohe oil province
