深薄层砂砾岩特稠油油藏蒸汽吞吐转驱试验评价  

Steam Soak Transfer to Steamflood Evaluation of Deep Thin Glutenite Extra-viscous Oil Reservoir

作　　者：郭洪金[1] 孙冬梅[1] 姚凯[1] 喻高明[2] 

机构地区：[1]胜利油田有限公司现河采油厂,山东东营257068 [2]江汉石油学院石油与材料工程学院,湖北荆州434023

出　　处：《江汉石油学院学报》2002年第3期46-47,共2页Journal of Jianghan Petroleum Institute

摘　　要：L油田为一大型的埋深、薄层、特稠油构造地层油藏 ,在其东区C块对 2种井距进行了蒸汽吞吐转驱试验。结果表明 ,埋深 90 0m以下 ,厚度 10m左右的砂砾岩储层 ,在 7MPa左右较高压力下转驱仍然是可行的。采用先进的注采及监测配套工艺 ,使注汽井井底干度始终保持在 70 %以上 ,采注比 1 4以上 ,预测最终采收率比一直保持吞吐方式提高 2L Oilfield is a large deep buried thin layer extra-viscous oil structural-stratigraphic reservoir. A test of steam soak transfer to steamflood is carried out on two well spacing of Block C in the east of the oilfield. The result shows that the steamflood is still feasible at high pressure of about 7 MPa in a 10 meter thick glutenite reservoir below the buried depth of 900 m , by using the advanced injection-production and detection techniques, more than 70% steam quality fraction is always maintained at bottomhole, more than 1.4 injection-production ratio is kept and predicted ultimate recovery factor is raised as 28% higher than that of consistent steam soak.

关 键 词：深薄层 砂砾岩 特稠油油藏 蒸汽吞吐转驱 试验 评价 

分 类 号：TE357.44[石油与天然气工程—油气田开发工程]