flood pattern meaning in English

洪水模式
注采井网
注水系统

Basic flooding pattern
基础注入井网
This article is mainly aim at tuo28 down reservoir of shengli oil field . through deeply analysis of geological character and its developing course . the important problems are found , first , flood pattern is not perfect , the reserivor is serious watered out in horizontal section , waterflood susceptibility is bad , the contradiction between oil and water in reservoir is serious , the interference between each producting formation is great , the crude oil is density , the reservoir have not enough energy , anisotropies is very serious . due to those facts , it is difficult to improve oil production by general technique
本文通过对胜坨油田坨28下油组油藏地质特点及开发历程的深入分析，找出目前存在的主要问题有：注采井网不完善，平面上水淹严重，注水效果差，油水矛盾突出，层间干扰严重，原油稠，油藏能量低，储层非均质性强，致使常规彩油工艺开发难度大。