本报告侧重于石油和天然气行业中高压高温（HPHT）设备的评估过程，包括设计验证分析、设计验证、材料选择考虑以及必要的制造过程控制，以确保设备适合在适用的HPHT环境中使用。HPHT环境是指存在以下一种或多种井况:a）完井需要配备温度额定值大于350的完井设备或井控设备？F或额定压力大于15000 psig； b） 对于有水下井口的油井，海底最大预期表面压力或关井油管压力大于15000 psig；对于有地面井口的油井，海底最大预期表面压力或关井油管压力大于15000 psig；orc）流动温度大于350？F对于有水下井口的油井，在海底；对于有地面井口的油井，在地面。注:在高温、低压应用中，并非本文件中介绍的所有方法都适用。 设计验证过程侧重于通过计算设计（系统、子系统和组件）的性能极限（包括其使用寿命和材料选择）来实现设计验证的分析方法。 设计验证过程的重点是评估设备的潜在故障模式、故障的影响/后果，并定义适当的测试方法，以根据已识别的故障模式评估设备的可靠性，包括验证材料性能。材料部分定义了验证过程所需的输入参数，并推荐了在服务环境中评估材料适用性所需的程序。本文件还包括HPHT设备专用的功能测试程序。 本报告中的设计验证和确认协议被各API小组委员会用作指南，用于制定HPHT服务设备规范的新标准和修订标准。本报告的目的不是取代现有的API设备规范，而是通过说明为维护设备的安全性和完整性而可能考虑的公认实践和原则来补充这些规范。本报告适用于以下设备:井口、油管头、管件、封隔器、接头、密封件、密封组件、采油树、节流阀和井控设备。 它可用于HPHT服务中的其他设备。

This report focuses on an evaluation process for high-pressure high-temperature (HPHT) equipment in the petroleum and natural gas industries which includes design verification analysis, design validation, material selection considerations, and manufacturing process controls necessary to ensure the equipment is fit-for-service in the applicable HPHT environment. HPHT environments are intended to mean that one or more of the following well conditions exist:a) the completion of the well requires completion equipment or well control equipment assigned a temperature rating greater than 350?F or a pressure rating greater than 15,000 psig;b) the maximum anticipated surface pressure or shut-in tubing pressure is greater than 15,000 psig on the seafloor for a well with a subsea wellhead or at the surface for a well with a surface wellhead; orc) the flowing temperature is greater than 350?F on the seafloor for a well with a subsea wellhead or on the surface for a well with a surface wellhead.NOTE In high-temperature, low-pressure applications, not all methodologies presented in this document may apply. The design verification process focuses on the analytical methods to achieve design verification by calculating the performance limits of a design (system, subsystems, and components), including its service life and material selection. The design validation process focuses on evaluating the potential failure modes of the equipment, the effects/consequences of the failures and defining the appropriate test methods to evaluate the reliability of the equipment against the identified failure modes including validation of material performance. The material section defines the required input parameters for the verification process and recommends the procedures necessary to evaluate the material fitness-for-service in the service environment. Functional testing procedures specific to HPHT equipment are also included in this document.The design verification and validation protocols in this report are used as a guide by the various API subcommittees to develop new and revised standards on equipment specifications for HPHT service. This report is not intended to replace existing API equipment specifications but to supplement them by illustrating accepted practices and principles that may be considered in order to maintain the safety and integrity of the equipment. This report is intended to apply to the following equipment: wellheads, tubing heads, tubulars, packers, connections, seals, seal assemblies, production trees, chokes, and well control equipment. It may be used for other equipment in HPHT service.