API 1111 pdf free download
API 1111 pdf free download.Design, Construction, Operation, and Maintenance of Offshore Hydrocarbon Pipelines (Limit State Design).
3.1.7 offshore pipeline riser Vertical or near-vertical portion of an offshore pipeline between the platform piping and the pipeline at or above the seabed, differentiated from a pipeline to provide additional personnel safety factor for third-party damage, dropped objects, etc. NOTE For purposes of internal pressure design, the “pipeline riser” design factor applies to the riser pipe within an appropriate horizontal distance from the surface facility, and the “pipeline” design factor applies beyond that point. a) A minimum horizontal offset distance of 300 ft for use of the pipeline riser design factor is recommended for deepwater suspended risers (e.g. SCRs). Offset begins at the hang-off point of the riser. b) For shallow-water fixed platforms, the entire riser attached to the facility typically employs the “pipeline riser” design factor. Pipeline on the seabed connecting to a shallow-water fixed platform riser typically employs the pipeline riser design factor for a horizontal offset distance of 300 ft. 3.1.8 oil Hydrocarbon in liquid phase. 3.1.9 operational loads Loads that may occur during normal operation of the pipeline. 3.1.10 pipeline Piping that transports fluids between offshore production facilities or between a platform and a shore facility, often sub-classified into the three categories: flowlines, injection lines, and export lines. NOTE The use of the word pipeline in this RP applies to all three categories defined below, unless otherwise specifically noted in the RP. a) Export Line—A pipeline that transports processed oil and/or gas fluids between platforms or between a platform and a shore facility. b) Flowline—A pipeline that transports the well fluids from the wellhead to the first downstream process component. Flowlines covered by this RP originate at a subsea wellhead, subsea manifold, or a remote wellhead platform. Flowlines that are confined to a single platform are not covered by this RP (see API 14E). c) Injection Line—A pipeline that directs liquids or gases into a formation, wellhead, or riser, to support hydrocarbon production activity (i.e. water or gas injection, gas lift, or chemical injection lines, etc.).3.1.11 pipeline component Any part of a pipeline that may be subjected to pressure as a result of the process, environment, or intervention activities. 3.1.12 pipeline system Pipeline and its components, including compressor stations and pump stations that are subjected to internal pressure by the transported fluids. 3.1.13 platform piping Piping restricted to a production or transportation hub platform, confined to the platform or is located between launching and receiving traps or the first boarding SDV and the last out-going block valve if no traps are present. NOTE 1 See API 14E for platform piping RPs. NOTE 2 Launching and receiving facilities inclusive of the associated valves for pipeline cleaning/inspection devices are considered part of the pipeline from a design standpoint.3.1.14 primary load Primary force necessary for equilibrium with applied loads and acting on a structure such as internal pressure or tension loading which drive the design considerations, materials, and final results NOTE A primary load is not self-limiting; thus if a primary load substantially exceeds the yield strength, either failure or gross structural yielding occurs. 3.1.15 production platform Facility that is operated to produce liquid or gas hydrocarbons and that includes such items as wells, wellhead assemblies, completion assemblies, platform piping, separators, dehydrators, and heater treaters. 3.1.16 splash zone Area of the pipeline riser or other pipeline components that is intermittently wet and dry due to wave and tidal action. 3.1.17 surge pressure Pressure produced by sudden changes in the velocity of the moving stream of hydrocarbons inside the pipeline or riser.API 1111 pdf download.
