ISO 3421:2022 石油和天然气工业 钻井和生产设备 海上导体设计、设置深度和安装

标准编号：ISO 3421:2022

中文名称：石油和天然气工业 钻井和生产设备 海上导体设计、设置深度和安装

英文名称：Petroleum and natural gas industries — Drilling and production equipment — Offshore conductor design, setting depth and installation

发布日期：2022-06

标准范围

本文件规定了海上石油和天然气行业导线的设计、设置深度和安装要求和建议。本文件具体涉及:—？导线设计，即确定直径、壁厚和钢号；—？确定三种安装方法的凝固深度，即打桩、钻井和固井以及喷射；—？三种安装方法的要求，包括适用性、程序、文件和质量控制。本文件适用于:—？平台导体:通过平台钻台上的导向孔安装，然后通过水柱每隔一段时间连接到导管架的导管，以支撑导体，承受作用，并防止过度位移；—？自升式支撑导线:仅在钻井作业期间使用的临时导线，由自升式钻机安装。在某些情况下，导线由连接至钻机的张紧器张紧；—？独立导体:安装在浅水中的悬臂模式自支撑导体，通常水深约为10m到20m、 它为油井提供唯一支撑，有时支持小型通道甲板和登船平台；—？水下井口导管:一种完全浸没的导管，仅延伸至海底几米以上，连接有防喷器和钻井立管。钻井立管连接至浮动钻机。防喷器、立管和钻机受到波浪和海流作用的影响，而立管也可能受到VIV的影响。本文件不适用于钻井立管的设计。

This document specifies the requirements and recommendations for the design, setting depth and installation of conductors for the offshore petroleum and natural gas industries. This document specifically addresses:—    design of the conductor, i.e. determination of the diameter, wall thickness, and steel grade;—    determination of the setting depth for three installation methods, namely, driving, drilling and cementing, and jetting;—    requirements for the three installation methods, including applicability, procedures, and documentation and quality control.This document is applicable to:—    platform conductors: installed through a guide hole in the platform drill floor and then through guides attached to the jacket at intervals through the water column to support the conductor, withstand actions, and prevent excessive displacements;—    jack-up supported conductors: a temporary conductor used only during drilling operations, which is installed by a jack-up drilling rig. In some cases, the conductor is tensioned by tensioners attached to the drilling rig;—    free-standing conductors: a self-supporting conductor in cantilever mode installed in shallow water, typically water depths of about 10 m to 20 m. It provides sole support for the well and sometimes supports a small access deck and boat landing;—    subsea wellhead conductors: a fully submerged conductor extending only a few metres above the sea floor to which a BOP and drilling riser are attached. The drilling riser is connected to a floating drilling rig. The BOP, riser and rig are subject to wave and current actions while the riser can also be subject to VIV.This document is not applicable to the design of drilling risers.

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