本推荐规程包含水下封盖烟囱的设计、建造、使用以及储存期间的维护和测试推荐规程。本文件的重点是:水下封盖烟囱的推荐设计参数；海底封盖叠层作业指南；以及存储、保存、维护和测试海底覆盖层的指南。本文件中涉及的完整海底封盖堆叠系统的其他重要元素包括:文件要求；操作、维护和测试水下封盖堆的人员的能力；事故井可能遇到的潜在未知数/风险，影响水下封盖堆栈的使用和相关应急程序；以及水下封盖烟囱组装和测试的示例程序本文件未涉及封盖烟囱下游的程序和设备。 水下封盖烟囱下游的所有设备和操作均被视为安全壳系统的一部分，不在本推荐规程的范围内。

This recommended practice contains subsea capping stack recommended practices for designing, building, and using, as well as maintaining and testing during storage. This document focuses on:Recommended design parameters for subsea capping stacks;Guidelines for subsea capping stack operations; andGuidelines for storing, preserving, maintaining, and testing a subsea capping stack.Other important elements of a complete subsea capping stack system that are addressed in this document include:documentation requirements;competencies of personnel who operate, maintain, and test subsea capping stacks;potential unknowns/risks that may be encountered with incident wells that impact the use of a subsea capping stack and relevant contingency procedures; andExample procedures for subsea capping stack assembly and testingThis document does not address procedures and equipment downstream of the capping stack. All equipment and operations downstream of the subsea capping stack are considered part of a containment system and are not within the scope of this recommended practice.