裂缝性低渗油藏压裂水平井井网渗流数学模型
Productivity equation of multi-fractured horizontal well pattern in Fractured low permeability reservoirs
高英 1张越 1崔景云 1蒋时馨 1谷峰1
作者信息
- 1. 中海石油气电集团有限责任公司 北京 100028
- 折叠
摘要
基于分形理论表征天然裂缝和压裂裂缝网络的复杂裂缝形态,针对裂缝性低渗透储层的非线性渗流特征和储层压敏特性,建立了裂缝性低渗透油藏压裂水平井-直井井组的非线性渗流模型.根据流体在混合井网中的不同流动形态,划分为3个区域,推导出了混合井网三区耦合产能公式,分析了分形维数、压敏效应、裂缝长度等参数对井网产能的影响.
Abstract
Based on fractal theory to characterize the complex fracture morphology of natural fractures and fractured fracture networks,a nonlinear seepage model for fractured horizontal and vertical well groups in fractured low-permeability reservoirs was established,targeting the nonlinear seepage characteristics and reservoir pressure sensitivity of fractured low-permeability reservoirs.Based on the different flow patterns of fluids in a mixed well network,it is divided into three regions and the coupled productivity formula of the mixed well network is derived.The influence of parameters such as fractal dimension,pressure sensitivity effect,and fracture length on the productivity of the well network is analyzed.
关键词
裂缝性油藏/分形分析/压裂水平井/产能预测/非线性渗流Key words
Fractured reservoir/Fractal analysis/Fractured horizontal well/Productivity prediction/Non-linear seepage引用本文复制引用
出版年
2024
NETL
NSTL
万方数据