摘要
针对低渗透油藏地质特征复杂、开采难度大、产能低等问题,以N油田为例,采用油藏数值模拟技术,建立了油藏整体压裂数值模拟模型,在历史拟合的基础上,对比研究了N油田压裂前后效果,发现油田压裂后可有效提高产能。研究了随着平面压裂规模的增大,采出程度和含水率的变化规律,优选出最佳的裂缝参数;纵向上设计不同的层系组合压裂开发方案,提出适合N油田的压裂方案。对同类低渗—特低渗储层的开发有指导意义。
Aimed at the problems of complex geological conditions, mining difficulties, and low product for low permeabil ity and extra-low permeability reservoir,taking N oilfield as an example,using reservoir numerical simulation technology,a numerical simulation mod-el of the whole reservoir fracturing was established. Based on the history match,the authors stimulated the development effectiveness of oilfield before and after fracturing, discovered oil field can effectively improve production after fracturing. They studied the change rule of recovery percent and water cut with the increase of plane fracturing scale,and optimal preferred fracture parameters. In vertical direc-tion ,a corresponding reasonable program of fracturing were determined through abundant numerical calculations and optimizations of dif-ferent fracturing project of various combinations of layers. It has some degree of guiding significance for the development of the same kind of low permeability and extra low permeability reservoirs.
出处
《能源与环保》
2017年第2期52-55,共4页
CHINA ENERGY AND ENVIRONMENTAL PROTECTION
关键词
石油勘探
低渗油藏
压裂技术
压裂规模
压裂数值模拟
oil explorat ion
extra-low permeabil ity re se rv o i r
fracturing te chnology
fracturing s c a le
n umerical simulat ion of fracturing
