电爆震解堵技术在低渗透油田的应用评价

APPLICATION OF THE ELECTRIC DETONATION BROKEN DOWN TECHNOLOGY IN LOW-PERMEABILITY OILFIELD

电爆震是低渗透油田新兴的一种油水井物理解堵技术,已在国内多个油田修井作业中得到应用。2009年长庆油田在姬塬地区实验性应用该技术措施解堵水井18口,其中16口取得明显效果,2口井无效,措施有效率88.9%。该技术现场工艺简单,操作方便,占井时间短,井筒无伤害,成本低廉,在低渗透油田解堵效果比较明显。但该技术选井条件要求高,可与其他措施解堵技术互为补充,配合使用。

Electric detonation is a new physical broken down technology in low-permeability oilfield,which has been applied in workover operations in China.Changqing oilfield has applied successfully the broken down measures for 18 wells in Jiyuan regional in 2009,of which 16 wells achieved remarkable results,only 2 wells was unefficient and the efficiency was high up to 88.9%.The technology on-site process is simple,convenient operation,wellbore clean,low cost and the broken down effects is obvious in low-permeability oilfield.However,well selection conditions of the technology are higher than other measures,it could be used jointly with others broken down measures.