Putaohua Low Permeability Blocks Line Optimization Study Advanced Water Injection Technology

Advanced water injection is an important low permeable oil extraction technology, it isan significant and effective method to improve the low permeable oil recovery efficiency.Thepurpose of oil field development is to improve oil recovery efficiency. And this is whyadvanced water injection emerges. It is to make the water injection well work before theproducing well operates, thus, the oil saturation in the drainage area when producing welloperates will keep no less than the initial oil saturation, accordingly, the formation pressurecan be larger than the original reservoir pressure. In this way, an efficient displacement systemis built, which can lead to a stable formation pressure, and long term high and stable yield,thus the exploit period can be shortened efficiently. Consequently, the relative research of theadvanced water injection is indeed meaningful for the development efficiency of the lowpermeability reservoir.After consult to relative literatures from home and abroad, the text makes a systematicstudy of the relative technology of advanced water injection according to the actual geologicalsituation of the researched area. And we made a geologic model according to the actual dataof block, then using Eclipse soft, made analog computation, design diverse progrems, withwhich are different development index, and study the progrems with adequate calculatingThis paper has briefly described the purpose significance of the thesis and the status quoof home and abroad, analyzing the basic characteristics of the development blocks. On thisbasis, this paper discusses mathematical model with dual medium,makes a geologic modelby Petrel,using Eclipse soft, makes a study on simulation numbers by Eclipse. Has designedfeasible solutions for parameter of the well pattern, well spacing, advanced water injectiontime, maintain formation pressure, reasonable water injection intensity, injection pressure andthe pressure change law of cumulative water injection parameters and so on,then iscalculation and optimization, and finally get the result of parameter optimization.