水平井火驱重力泄油(CGD)物理模拟实验研究  

Experimental Study of the Combustion-gravity-drainage Using Horizontal Well

作　　者：刁长军[1] 程宏杰[1] 关文龙[2] 顾鸿君[1] 

机构地区：[1]中国石油新疆油田公司勘探开发研究院,新疆克拉玛依834000 [2]中国石油勘探开发研究院热力采油研究所,北京100083

出　　处：《内蒙古石油化工》2013年第1期34-38,共5页Inner Mongolia Petrochemical Industry

摘　　要：水平井火驱重力泄油技术是近年来发展起来的新技术,是重力泄油与火烧油层技术结合的另一种方式,其以直井做为注气点火井、水平井做为火驱生产井。室内三维物理模拟实验表明:水平井火驱重力泄油过程中泄油面积与水平段的长度关系不大,该方式可以实现连续稳定泄油,并能有效提高储层纵向动用程度,可以实现超稠油的火驱开发。生产过程中最大的油藏和工程风险来自于燃烧带前缘沿着水平井筒突进,但通过从垂直注气井的中上部射孔和水平井的两侧部署垂直井用于排气,可以有效降低水平井突破的风险。Horizontal well In--situ combustion gravity drainage is a new developed technology. It is a combination of gravity drainage and in--situ combustion. Vertical well works as air injection well and igni- tion well; and horizontal well works as production well. The experiments of 3D physical modeling demon- strate： drainage area has no linear relationship with the length of horizontal well; the process of oil drainage is stable and reliable; the vertical flooding efficiency is improved; bitumen is able to be produced efficiently using this technology. The main risk is that combustion zone trends to breakthrough into the horizontal well. However, both injecting air through the middle and upper part of vertical injection well and locating vertical well besides the horizontal well for gas exhaustion can lower this risk.

关 键 词：水平井 火驱重力泄油 超稠油 三维物理模拟 

分 类 号：TE357[石油与天然气工程—油气田开发工程]