套管和尾管快速下入工艺在深水钻井中的应用

发布时间：2018-06-24 13:33

本文选题：深水钻井 + 下套管　；参考：《探矿工程(岩土钻掘工程)》2016年12期

【摘要】：套管和尾管的下入程序是整个钻井工艺的重要环节。传统的下套管和尾管速度往往较慢且需要周期性地向管柱内灌钻井液。特别是对于深水钻井等钻井液密度窗口较窄的井,掌控套管柱合适的下放速度较困难,极易产生压力"激动"造成井漏。套管和尾管的快速下入工艺是提高作业效率,保证井下安全,满足钻井工艺需要的重要研究方向。本文主要介绍了套管和尾管快速下入工艺技术的主要工作原理、特点、工具组成和操作方法,以及现场应用情况及其注意事项,对作业过程中可能出现的一些问题进行了分析和总结,并提出了相应的建议,对类似的深水井作业具有重要的借鉴意义。
[Abstract]:The procedure of casing and tail pipe entry is an important part of the whole drilling process. The traditional casing and tail tubes often slow down and need to periodically fill the string with drilling fluid. Especially for wells with narrow drilling fluid density window, it is difficult to control the proper down-flow speed of casing string, and it is easy to produce pressure "agitation" to cause well leakage. The rapid entry process of casing and tail pipe is an important research direction to improve the working efficiency, ensure downhole safety and meet the requirements of drilling technology. This paper mainly introduces the main working principle, characteristics, tool composition and operation method of the technology of quick entry of casing and tail pipe, as well as the field application and matters needing attention. This paper analyzes and summarizes some possible problems in the course of operation, and puts forward some corresponding suggestions, which is of great significance for reference to similar deep well operations.
【作者单位】：中海油能源发展股份有限公司工程技术深圳分公司;
【分类号】：TE52

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