ISO/TS 12835:2022 热井套管连接的鉴定

标准编号：ISO/TS 12835:2022

中文名称：热井套管连接的鉴定

英文名称：Qualification of casing connections for thermal wells

发布日期：2022-03

标准范围

本文件提供了评估套管连接的程序，适用于工作温度在明显低于180°C的最小值之间周期性变化的现场应用°C和180°C范围内的最大值°C至350°C或更高，其中套管连接系统上的主要轴向载荷基于应变，由受约束的热膨胀驱动，并导致应力状态超过套管连接系统的屈服包络线。注:本文件可被视为对ISO的补充13679（其核心内容符合API规范5C5），适用于经典弹性设计应用。本文件包含候选连接的评估程序，该候选连接由唯一定义的管脚、盒和界面组件组成。评估程序包括:—？材料性能测试，以评估候选连接销和接线盒组件的相关性能；—？确定物理测试连接样本配置的分析任务，根据连接几何形状和材料特性的最坏情况组合进行选择；—？在代表连接组件和热井服务的负载下，测量候选连接耐磨损性、结构完整性和密封性的全尺寸测试任务。本文件不涉及外部压力、不完整的横向管道支架、旋转疲劳、地层引起的剪切或环境引起的腐蚀或开裂的影响。条款6描述了本文件中采用的基本假设。

This document provides procedures for assessment of casing connections for those field applications in which the operating temperatures cyclically vary between minimum values appreciably below 180 °C and maximum values that range from 180 °C to 350 °C or above, and in which the primary axial loading on the casing-connection system is strain-based and driven by constrained thermal expansion and leads to a stress state that exceeds the casing-connection system's yield envelope.NOTE This document can be considered complementary to ISO 13679 (and its core content per API Specification 5C5), which applies to classic elastic-design applications.This document contains an evaluation procedure for a candidate connection comprising of uniquely defined pin, box and interfacial components. The evaluation procedure includes:—    Material property tests to assess relevant properties of the candidate connection pin and box components;—    Analytical tasks to determine configuration of connection samples for physical tests, which are chosen based on worst-case combinations of the connection geometry and material properties;—    Full-scale testing tasks to measure the candidate connection galling resistance, structural integrity and sealability under loading representative of connection assembly and thermal well service.This document does not address impacts of external pressure, incomplete lateral pipe support, rotational fatigue, formation-induced shear, or environmentally-induced corrosion or cracking.Clause 6 describes fundamental assumptions adopted in this document.

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