油气地质与采收率2012，Vol.19Issue(4)：74-77,4.
底水稠油油藏双水平井泡沫压脊技术及参数优化
Study on nitrogen foam anti-water-cresting by double horizontal wells for bottom water heavy oil reservoir
摘要
Abstract
By means of numerical simulation, below the producing horizontal well, another horizontal well is placed to put off water cresting. When water cresting reached up to the height of producing horizontal well, we shut in the producing horizontal well and inject nitrogen foam into the horizontal well below. After two days'soaking, the upper horizontal well is opened to produce again. This process can be repeated for many times. The results of numerical simulation show that the development efficiency by double horizontal wells is much better, and the effect of water cresting can be alleviated greatly comparing to injecting nitrogen foam and producing oil only by a single well. The development style, distance away from the bottom water, length, liquid producing rate and the moment of injecting nitrogen foam are optimized by simulation. After optimization, the quantity and amplitude of incremental oil can reach up to 19,000 cubic meters and 48. 7% respectively.关键词
水平井/泡沫/底水稠油油藏/底水脊进/数值模拟Key words
horizontal well/ foam/ bottom water heavy oil reservoir/ water cresting/ numerical simulation分类
能源科技引用本文复制引用
刘永革,刘慧卿,庞占喜,王长久..底水稠油油藏双水平井泡沫压脊技术及参数优化[J].油气地质与采收率,2012,19(4):74-77,4.基金项目
国家科技重大专项"油田开采后期提高采收率新技术"(2011ZX05009-004). （2011ZX05009-004）
