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QK111 井分层注水工艺及效果

断块油气田

2004年 11卷第02期

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Title

Technique and Eff iciency of Separate Layer Water Injection in Well QK111

作者

魏哲宏

Authors

Wei Zhehong

单位

华东分公司采油厂

摘要

分层注水工艺应用于非均质多油层注水,通过分层配注量的调整,缓解层间吸水差异,提高注水纵向波及系数、增加动用地质储量及提高周边采油井的产量,获得良好的经济效益。近年来,在调研国内主要油田分层注水工艺的基础上,选择了一套两级空心定向分层注水工艺及技术,并在苏北Q K111 井中应用成功,取得了可喜的地质增油效果。

Abstract

Separate layer water injection technique is applied in

heterogeneous medium multiple zone water flooding. By

adjusting quantities of separate layer injection allocation ,

discrepancies of water absorbing among layers are relieved ,

and vertical sweep efficiency of water flooding , producing

geologic reserve and output of circumferential oil wells are

raised. So the better economic efficiency has been gained. In

recent years , based on investigating and studying on separate

layer water injection technique in several main oil fields of

internal , a set of two2stage hollow directional separate layer

water injection technique had been selected and successfully

applied in well QK111 of Subei.

关键词：

分层注水工艺; 结构; 原理; 分层调配; 增油; 控水; 效果;

Keywords:

Separate layer water injection technique ,Structure , Principle , Separate layer injection allocation ,Efficiency in increment oil and control of water.

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基金项目

DOI