非均质油藏矢量井网部署方法研究

油藏非均质性是造成目前水驱油藏开发效果差,剩余油分布零散的主要原因,为弱化油藏非均质性的负面影响,人们考虑提出部署矢量化井网。矢量化井网强调井网应与油藏的非均质性相适应,因此笔者认为根据不同方向渗透率大小确定注采井距和根据油藏具体特点选择合适的水驱方向是井网设计的关键所在。本文根据数值模拟结果和矿场实践经验总结了矢量井网设计方法,并应用于实践,效果很好。

Anisotropism has created these objective results that the efficiency becomes bad and the distribution of remaining oil is scattered in water--driving reservoir development. In order to weak the minus affection of the anisotropism, vector well pattern is proposed, vector well pattern emphasized the well pattern should adapt to the anisotropism. The article think the following two things are critical, One is calculating injecting--producing distance according to vector permeability, The other is the selection of water--driving orientation based on the features of reservoir. Utilizing the numerical simulation and hands --on from oil fields, we has obtained the method of designing vector reservoir. The acts illustrate the effect is very good.