提高坪北采油管理二区水驱效果技术讨论  

On improving waterflooding effect in No.2 oil production management area of Pingbei oilfield

作　　者：田静颖 TIAN Jingying(Research Institute of Exploration and Production,Sinopec Jianghan Oilfield Company,Wuhan,Hubei 430223,China)

机构地区：[1]中石化江汉油田分公司勘探开发研究院,湖北武汉430223

出　　处：《江汉石油职工大学学报》2022年第6期10-12,共3页Journal of Jianghan Petroleum University of Staff and Workers

摘　　要：坪北油田采油管理二区属于“特低渗透、低孔、低压、低产、低丰度”岩性油藏。为确保油井稳定生产,需要提高采油管理二区的水驱开发效果。采用井距在140〜240m之间,最小排距大于80m的合理井网井距,建立有效的面积驱替,促使油井见效;采取调驱调剖技术,改变注水井的吸水剖面,避免主向油井水淹,促进侧向油井见效,从而确保采油管理二区油井保持稳产。The No.2 oil production management area of Pingbei oilfield is a lithologic reservoir characterized by ultra-low permeability,low porosity,low pressure,low yield and low abundance.Aimed to ensure the stable production of oil wells,it is necessary to improve the water flooding effect in the area.The proper well pattern(well spacing in 140〜240m and the minimum row spacing greater than 80m)is used to establish effective drainage area and make the wells productive.The injection profile of a water well is changed by adopting the techniques of flooding and profile control,so as to avoid flooding of the major producing wells and promote the effect of the offset oil wells,and to ensure the stable production of the wells in the area.

关 键 词：坪北油田 特低渗透油藏 水驱开发效果 

分 类 号：TE357.62[石油与天然气工程—油气田开发工程]