判断自喷条件下蒸汽辅助重力泄油生产状态的新方法  

New Method for Diagnosing SAGD Production State in Condition of Artesian Flow

作　　者：孙新革[1] 赵睿[1] 杜卫星[2] 张建华[2] 任香[1] 

机构地区：[1]中国石油新疆油田分公司勘探开发研究院,新疆克拉玛依834000 [2]中国石油新疆油田分公司开发公司,新疆克拉玛依834000

出　　处：《新疆石油地质》2011年第5期531-532,共2页Xinjiang Petroleum Geology

摘　　要：提出了在蒸汽辅助重力泄油自喷生产条件下,用视密度代替ts值判断现场生产状态的方法,并从理论计算和实际数据分析两方面对其基本原理作了阐述。该方法只要求有井下某点的压力测试数据,便可以结合井口油压数据,估算出井筒视密度,从而实现等同于ts值的生产状态判断功能,计算简便,更具实用性。该方法在先导试验区的实际应用表明,对于现场生产调控具有较好的指导作用。Subcool is a conventional parameter,by which we can diagnose the state of steam assisted gravity drainage（SAGD） production,but this method extremely relies on the monitoring of temperature and pressure in wellbore.According to this,a new simplified method for the state diagnosing work is proposed,which can be a substitution for using the conventional subcool parameter.In the case study,just by using pressure in downhole and oil pressure at wellhead,the wellbore apparent density can be calculated in condition of artesian flow,which is the same as the function of subcool production state diagnosing.The case study of I well group in SAGD pilot test area of Xinjiang Fengcheng oilfield indicates that it is of a good guiding effect in the field heavy oil production and control.

关 键 词：蒸汽辅助重力泄油 稠油油藏 自喷 井筒视密度 

分 类 号：TE112.222[石油与天然气工程—油气勘探]