论文详情

适应小井眼的反循环井控方法及其计算

石油钻采工艺

1997年 19卷第6期

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Title

REVERSE CIRCULATION WELL CONTROL METHOD AND ITS CALCULATION IN SLIM HOLE

作者

徐华义余志清

Authors

Xu Huayi Yu Zhiqing

单位

西安石油学院

摘要

随着小井眼钻井技术的逐渐推广应用,小井眼的并控问题将会越来越突出,目前常规的压井方法很难解决小开眼面临的井控问题。文中首次提出适应小井眼的反循环并控方法并给出了相应的计算公式。理论分析表明,反循环并控方法可明显降低压井套压,是一种适应小井眼的理想的井控方法。

Abstract

The present regular well control method is not suitable in slim hole. A re verse circulation well control method applicable in slim hole was advanced firstly and respective calculation equations were set up. The theoretic analysis shows this method can greatly reduce casing pressure of well killing and represents a realistic well control method for slim hole.

关键词：

小眼井; 反循环; 井控; 立管; 压力; 套管压力; 计算方法;

基金项目

DOI

10.3969/j.issn.1000-7393.1997.06.003