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DL-1型堵漏试验装置及评价方法

石油钻采工艺

1996年 18卷第5期

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Title

INTRODUCTION AND EVALUATION OF MODE DL-1 DEVICE FOR LOST CIRCULATION CONTROL

作者

王德玉蒲晓林施太和卢熙坦张建卿

Authors

Wang Deyu Pu Xiaolin Shi Taihe Lu Xitan Zhang Jianqing

单位

西南石油学院石油工程系长庆石油勘探局钻井二公司

摘要

DL-1型堵漏试验装置,用对岩心施加围压、驱压和回压来模拟井壁所受的挤压和静压差的作用,并经流动相似分析,使流动的钻井液对岩心端面和对井壁的剪切应力相同,使实验条件与井下环境极为相似。实验装置可作静态、动态堵漏实验,可测试内滤饼反向承压能力和反驱流量等实验,在长庆油田堵漏项目的研究中取得了较好的实验研究效果,并在现场堵漏中得到了验证,在生产中见到了实效。

Abstract

The device simulates extrusion and static pressure difference of the well wall by applying confined pressure,driving pressure and back pressure to the core.Test conditions are similar to the bottomhole conditions.The device could be used in static and dynamic tests,in testing the internal mud cake reversed bearing capacity and reversed driving flow.Test taken in Changqing Oilfield was successful and was verified in field operation.

关键词：

井漏; 堵漏; 实验室试验; 模拟试验; 实验室设备; 钻井液; 流动速度; 压力;

Keywords:

lost circulation; lost circulation control; laboratory test; simulation test; laboratory device; drilling fluid; flow velocity pressure;

基金项目

DOI

10.3969/j.issn.1000-7393.1996.05.009