摘要
采用油藏生产动态分析和数值模拟相结合的方法,考虑到气顶底水锥进和水力压裂的实际情况,对韦8断块油藏注水开发的影响因素进行了研究。首先,在油藏描述模型的基础上建立全油藏的数值模型,应用该模型对油藏的开发生产历史进行拟合,分析油藏开发生产特点。并利用典型井组研究开发层系组合、水平井-直井组合井网和注水条件对开发效果的影响,通过对渗透率、原油黏度、有效厚度、井排比、穿透比、注水温度、注水速度、注采井距进行动态优化调整,得出了韦8断块开发矛盾最小化、效益最大化的合理化建议。
The Wei-8 fault block is characterized by a low-permeability and heavy-oil reservoir with gas-cap and bottom-water.In view of its real conditions including gas coning,water coning and hydraulic fracturing,we studied influencing factors in waterflooding development of this reservoir by integrating the dynamic analysis of reservoir production with numerical simulation.First,a numerical simulation model for the whole oil reservoir was built based on fine reservoir description,and then it was applied to simulating the development and production history of the reservoir by analyzing dynamic features.Then,using the typical well-patterns of this model,the effect of development layer series combination,horizontal-vertical well combination pattern and injection conditions were studied during the development by dynamic adjusting permeability,oil-viscosity,effective thickness,well-row data,penetration ratio,injection temperature,injection rate and injection-production well spacing.A number of optimum values for these parameters were derived with this model and they could direct an effective and scientific development of the Wei-8 fault block.
出处
《石油学报》
EI
CAS
CSCD
北大核心
2012年第2期284-287,共4页
Acta Petrolei Sinica
关键词
气顶底水油藏
油藏数值模拟
注水开发影响因素
开发层系
注水条件
oil reservoir with gas-cap and bottom-water
reservoir numerical simulation
influencing factor in waterflooding development
layer series of development
injection condition
