高含水期油藏提液影响因素研究  

Influence factors research of liquid extraction effect in reservoir at high-water cut stage

作　　者：史树彬[1] 刘承杰[1] 靳彦欣[1] 尹相文[1] 关悦[1] 

机构地区：[1]中国石化胜利油田分公司采油工艺研究院,山东东营257000

出　　处：《石油地质与工程》2012年第5期83-85,161,共3页Petroleum Geology and Engineering

摘　　要：针对目前提液井出现的一系列问题,在分析提液提高采收率机理的基础上,利用数值模拟技术,研究了不同地质条件和开发条件下提液的效果,确定了提液的政策界限。模拟结果表明,正韵律模型随渗透率级差的增大,提高采收率幅度先增加后减小;反韵律模型随渗透率级差的增大,提高采收率幅度一直减小;提液幅度大约为140%,提高采收率幅度最大;提液时机越早,提高采收率幅度越大;在提液方式中,高低渗提液比大约为0.6时,效果较好。Aiming at the problems occurred in liquid enhanced wells, based on EOR mechanism of liquid extraction, by using numerical simulation technology, the influence factors research of liquid extraction effects under different geological conditions and development conditions has been carried out and then the policy limitation of liquid extraction has been determined. The simulation results show in positive rhythm model, with the increase of permeability ratio, the EOR amplitude first increases and then decreases. While in reverse rhythm model, with the increase of permeability ratio, the EOR amplitude decreases all the time. When the liquid extraction is about 140%, the EOR amplitude is the biggest. The earlier the liquid extraction moment, the higher EOR amplitude. Among the liquid extraction manners, when the permeability ratio is 0.6, the effect is the best.

关 键 词：驱替压力 数值模拟 提液幅度 提液时机 提液方式 

分 类 号：TE313[石油与天然气工程—油气田开发工程]