论文详情

定向井井眼轨迹的连续控制

石油钻采工艺

1995年 17卷第2期

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Title

WELL PATH CONTINUOUS CONTROLLING IN DIRECTIONAL WELL

作者

张炳顺张桐信

Authors

Zhang Bingshun Zhang Tongxin

单位

华北石油管理局第二钻井工程公司

摘要

目前,大多数定向井采用常规的钻井工艺技术进行井眼轨迹的控制(即非连续控制),一口井要改变钻具结构多次,而每次改变钻具结构需起下钻方能实现。导向钻井系统可实现井眼轨迹的连续控制,靠一套多功能下部钻具组合一次下井,配合长寿命的优质钻头和随钻测斜仪导向,在井下长时间运转,不用起下钻就能准确、连续、迅速、经济地完成定向井多种井段的作业。该技术的推广应用,将会取得很大的经济效益。

Abstract

Up to now, much directional well using conventional technology to control well path that requires often changing the BHA and cost drilling time. The steering drilling system can continuously control well path by using one set of navigational BHA (bottom hole assembly) with edvanced bit and MWD (Measurement while Drilling) to teduce tripping time to realize,accuracy,continousy and economical directional drilling work.

关键词：

定向井; 导向钻井; 井底钻具组合; 井底动力钻具; 钻头; 随钻测斜仪; 计算机控制; 井眼轨迹;

Keywords:

directional well; navigutional drilling; BHA(bottom hole assembly); positive displacement motor; MWD(Measurement While Drilling); computer control;

基金项目

DOI

10.3969/j.issn.1000-7393.1995.02.005