油田注入水中的细菌类型及危害

Type and Harm of Bacterial of the Injection Water in Oilfield

周明 许承阳 汪正勇 王辉 吴桂莲

ZHOU Ming XU Cheng-yang WANG Zheng-yong WANG Hui WU Gui-lian

胜利油田有限公司 孤岛采油厂工艺所, 山东 东营 257231; 青海石油管理局 钻采工艺研究院, 甘肃 敦煌 736202

Gudao Oil Production Plant of Shengli Oilfield, Dongying 257231, China; Drilling & Producting Institute Subsidiary Company, Qinghai Oilfied, Dunhuang 736202, China

文章论述了细菌的类型及其特征,讨论了注入水中细菌对油层、管线的危害,并以垦利油田垦-95断块为例,重点讨论了细菌堵塞油层引起油层渗透率下降、吸水能力下降后如何解除堵塞的问题,对油田生产具有一定的指导意义。

This paper discusses the type and characteristic of bacterial and how it harms oil rservior and pipeline in injection water. Taking the block of K95 in KenLi oilfield as example we centre our discussion on how to remove the question of the bacterial plugging after the bacterial plugging caused the droping of permeability and water absorbing capacity. It will has a guiding significance to the oil production.