石油和天然气工业.钻井和生产设备.井口和树木设备

[中文适用范围]： 本文件规定了石油和天然气行业使用的井口和采油树设备的性能、尺寸和功能互换性、设计、材料、测试、检验、焊接、标记、搬运、存储、运输和采购的要求并给出了建议。 本文件不适用于现场使用或现场测试。 本文件不适用于井口和采油树设备的修理，但与制造相关的焊接修理除外。 本文件不适用于用于安装和维修的工具（例如送入工具、测试工具、清洗工具、耐磨衬套和润滑器）。 本文件对 API Spec 6A 第 21 版（2018 年）进行了补充，除本文件中规定的例外情况外，其要求均适用。 [外文原描述]： This document specifies requirements and gives recommendations for the performance, dimensional and functional interchangeability, design, materials, testing, inspection, welding, marking, handling, storing, shipment, and purchasing of wellhead and tree equipment for use in the petroleum and natural gas industries. This document does not apply to field use or field testing. This document does not apply to repair of wellhead and tree equipment except for weld repair in conjunction with manufacturing. This document does not apply to tools used for installation and service (e.g. running tools, test tools, wash tools, wear bushings, and lubricators). This document supplements API Spec 6A, 21 st edition (2018), the requirements of which are applicable with the exceptions specified in this document.