摘要
为提高D84块XLT超稠油油藏剩余油动用程度,以油藏特点和开发现状为基础,应用STARTS数值模拟软件,采用变深度、不均匀网格进行油藏数值模拟.提出了直井与水平井组合的SAGD(Steam-AssistedGravityDrain-age)技术,并对布井方式、水平段长度、水平段在油层中的位置、注采参数等进行了优化设计.实施效果表明,各项参数的设计科学合理;采用直井与水平井组合SAGD技术,提高超稠油原油采收率是经济可行的.
Based on the detailed studies of the characteristics of reservoir and the present cyclic steam injection situation, by using STARTS numerical simulation model and adopting various depth and heterogeneous grid, we researchers put forward a new technology which makes use of vertical wells combined with horizontal wells, named SAGD (Steam-Assisted Gravity Drainage) to improve the exploitation of residual oil in XLT reservoir of D84 block whose oil is super heavy. Meanwhile, we optimize some main geological parameters for geological design of SAGD process, such as well pattern,length of horizontal interval,location of horizontal interval and injection-production parameters. The field-work shows that the designed parameters are reasonable and the SAGD technology which uses vertical wells combined with horizontal well is economical and feasible.
出处
《大庆石油学院学报》
CAS
北大核心
2006年第2期44-47,147,共4页
Journal of Daqing Petroleum Institute
关键词
超稠油油藏
SAGD
布井方式
数值模拟
注汽干度
注汽速度
super heavy oil reservoir
SAGD
well pattern
numerical simulation
dryness of steam
steam-in speed
