ISO 19901-7:2013规定了 -石油和天然气行业用于支持生产、储存、钻井、油井干预和生产、生产和储存、钻井、油井干预、生产和储存的浮式结构物的站位保持系统的设计、分析和评估，以及 -移动式海上装置（例如移动式海上钻井装置、施工装置和铺管装置）现场特定应用的站位保持系统评估。 ISO 19901-7:2013适用于ISO 19901中直接涵盖的以下类型的站务系统:- 7:2013或通过参考其他指南: -扩展系泊（悬链线、拉紧线和半拉紧线系泊）； -单点系泊，通过扩展系泊装置锚固； -动态定位系统； -推进器辅助系泊。 资料性附录中给出了这些系统的特征和典型部件的说明。 ISO 19901-7:2013的要求主要针对由钢链和钢丝绳组成的系泊缆的扩展系泊系统和单点系泊系统。ISO 19901-7:2013还提供了该方法在合成纤维缆绳系泊系统中的应用指南，并包括与合成纤维缆绳独特性能相关的附加要求。 ISO 19901-7:2013仅在相关要求的范围内适用于单锚腿系泊系统（SALM）和其他单点系泊系统（例如塔软轭系统）。 ISO 19901-7:2013不适用于张力腿平台（TLP）的垂直系泊。

ISO 19901-7:2013 specifies methodologies for - the design, analysis and evaluation of stationkeeping systems for floating structures used by the oil and gas industries to support production, storage, drilling, well intervention and production, production and storage, drilling, well intervention, production and storage, and - the assessment of stationkeeping systems for site-specific applications of mobile offshore units (e.g. mobile offshore drilling units, construction units, and pipelay units). ISO 19901-7:2013 is applicable to the following types of stationkeeping systems, which are either covered directly in ISO 19901-7:2013 or through reference to other guidelines: - spread moorings (catenary, taut-line and semi-taut-line moorings); - single point moorings, anchored by spread mooring arrangements; - dynamic positioning systems; - thruster-assisted moorings. Descriptions of the characteristics and of typical components of these systems are given in an informative annex. The requirements of ISO 19901-7:2013 mainly address spread mooring systems and single point mooring systems with mooring lines composed of steel chain and wire rope. ISO 19901-7:2013 also provides guidance on the application of the methodology to synthetic fibre rope mooring systems, and includes additional requirements related to the unique properties of synthetic fibre ropes. ISO 19901-7:2013 is applicable to single anchor leg moorings (SALMs) and other single point mooring systems (e.g. tower soft yoke systems) only to the extent to which the requirements are relevant. ISO 19901-7:2013 is not applicable to the vertical moorings of tension leg platforms (TLPs).