应用水力深穿透技术缩短驱替距离  

Application of hydraulic deep-penetration technology in shortening displacement distance

作　　者：白艳明[1,2] 刘鹏[2] 刘明君[3] 

机构地区：[1]浙江大学地球科学系,浙江杭州310027 [2]大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712 [3]大庆油田有限责任公司第九采油厂,黑龙江大庆163853

出　　处：《断块油气田》2011年第3期406-408,共3页Fault-Block Oil & Gas Field

摘　　要：针对低渗透油田单井产量低、注水压力高、增产增注措施受限制的实际情况,为进一步拓展增产增注措施思路,在某油田优选2个试验井组开展水力深穿透缩短驱替距离试验。根据技术原理,建立喷射孔眼在油层内长度的数学模型,综合考虑地层倾角、井斜角及射孔方向的影响,对软管推进轨迹进行了理论分析。在此基础上,确定试验井施工参数。现场试验表明,该技术能够实现对储层进行定向改造。Aiming at the situation of low oil rate,high water injection pressure and limited stimulation measures for low-permeability reservoirs and in order to expand the ideal of stimulation,two well-groups in one of field were properly chosen and the hydraulic deep-penetration tests were conduced to shorten the displacement distance.Starting from the technical principle,this paper established the mechanics by mathematically modeling the distance of jetting within the reservoir.The influential factors like stratigraphic dip,deviation angle and perforation direction were considered.Meanwhile,it theoretically analyzed the hose advancing trackway.Based on this,the operation parameters of tested wells were determined.Field experiment shows that this effective way can realize the oriented stimulation of reservoirs.

关 键 词：超长水力射孔 增产增注 高压射流 定向改造 

分 类 号：TE257[石油与天然气工程—油气井工程]