论文详情

深井巴东4 井盐膏层钻井液技术

断块油气田

2004年 11卷第01期

阅读：107

查看详情

Title

The Technique of Drilling Fluid for Gypsum Formation of Deep Well Badong 4

作者

张秀红崔　红赵昌强

单位

中原石油勘探局对外经济贸易总公司

摘要

巴东4 井位于塔里木盆地西南凹陷玛扎克塔克构造带乌山构造,完钻井深6 800m ,钻遇埋藏深、厚度大的寒武系盐膏层,其间夹杂厚度不等且裂缝发育的白云岩、红色泥岩等,易发生井壁坍塌、井漏、缩径和卡钻等钻井复杂情况,钻井液流变性维护难度大。该文介绍了成功使用欠饱和盐水钻井液及维护其流变性的方法,对盐膏层钻井作业有一定的参考作用。

Abstract

The depth of well Badong 4 is 6 800 m , locating in

Wushan structure , Tarim Basin. Thick cambrian gypsum

formation interbedded with fissured dolomite & red

mudstone is encountered during the drilling operation. The

drilling problems are always incidental to gypsum formation.

It is rather difficult to maintain the rheological property of

drilling fluid during drilling gypsum zone. This paper presents

the application and measures for maintaining rheological

property of undersaturated salt mud.

关键词：

巴东4 井; 深井; 盐膏层蠕变; 流变性;

Keywords:

Well Badong 4 , Deep well , Creep of gypsum ,Rheological property.

;

基金项目

DOI