本推荐规程（RP）侧重于计算管道监测（CPM）系统的设计、实施、测试和操作，该系统使用算法方法检测液体管道中的水力异常。这些系统提供工具，帮助控制器检测在算法灵敏度范围内的商品释放。本RP适用于控制器和操作员、CPM系统开发人员和工程师以及其他对CPM系统设计、实施和操作感兴趣的人员。 CPM系统向控制器提供警报并显示其他相关数据，以帮助决策。当警报代表不正常工作条件、异常工作条件或商品释放时，控制器立即进行调查，确认警报原因，并启动对液压异常的操作响应。该RP包括定义、源文件和参考文件、数据采集概念、与CPM相关的管道设计和运行讨论、用于CPM的现场仪表、报警可信度、控制器响应、事件分析、记录保留、维护、系统测试、培训、设置报警限值的考虑因素、趋势、，以及数据呈现的建议。 还讨论了控制器和CPM系统之间的关系。本RP适用于液体陆上或海上干线系统。CPM系统通常应用于钢管系统。CPM的适用性和性能可能会受到非钢管道特性的限制。本RP考虑单相液体管道。许多原则适用于间歇性松弛管线流中的液体管道或可能具有永久松弛管线流的液体管道。 除非关井泄漏检测是部署的CPM解决方案的一部分，否则该RP可能不适用于在关井条件下（有时称为静态条件）确定泄漏的特殊情况。众所周知，没有一种单一的CPM方法或技术适用于所有管道，因为每个管道系统在设计和操作上都是独特的。该RP补充但不取代其他监测线路完整性的程序。CPM系统是操作员泄漏检测程序的一部分。 有关泄漏检测程序的更多信息，请参阅API RP 1175，管道泄漏检测程序管理。本标准支持联合国可持续发展目标9（弹性基础设施）和13（气候行动）。

This recommended practice (RP) focuses on the design, implementation, testing, and operation of computational pipeline monitoring (CPM) systems that use an algorithmic approach to detect hydraulic anomalies in liquid pipelines. These systems provide tools that assist controllers in detecting commodity releases that are within the sensitivity of an algorithm.This RP is intended for controllers and operators, CPM system developers and engineers, and others interested in CPM system design, implementation, and operation.CPM systems provide an alarm and display other related data to the controllers to aid in decision-making. Controllers undertake an immediate investigation, confirm the reason for the alarm, and initiate an operational response to the hydraulic anomaly when the alarm represents an irregular operating condition, abnormal operating condition, or a commodity release.This RP includes definitions, source and reference documents, concepts of data acquisition, discussion of design and operation of a pipeline as related to CPM, field instrumentation for CPM purposes, alarm credibility, controller response, incident analysis, records retention, maintenance, system testing, training, considerations for setting alarm limits, trending, and recommendations for data presentation. The relationship between the controller and the CPMsystem is also discussed.This RP is written for liquid onshore or offshore trunkline systems. CPM systems have typically been applied to steel pipeline systems. CPM applicability and performance may be limited by the characteristics of non-steel pipelines. This RP was written considering single phase, liquid pipelines. Many of the principles apply to liquid pipelines in intermittent slack line flow or liquid pipelines that may have permanent slack line flow. This RP may not apply to the special case ofdetermining leaks during shut-in conditions that occur when the line is shutdown (sometimes called static conditions) unless shut- in leak detection is part of the deployed CPM solution.It is recognized that no single CPM methodology or technology is suitable for all pipelines because each pipeline system is unique in design and operation. This RP complements but does not replace other procedures for monitoring the integrity of the line. CPM systems are one part of an operator's leak detection program. For further information on leak detection programs, see API RP 1175, Pipeline Leak Detection-Program Management.This standard supports UN Sustainable Development Goals 9 (Resilient Infrastructure) and 13 (Climate Action).