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API STD 53-2018- pdf free download

API STD 53-2018- pdf free download.Well Control Equipment Systems for Drilling Wells.
1 Scope The purpose of this standard is to provide requirements for the installation and testing of blowout prevention equipment systems on land and marine drilling rigs (barge, platform, bottom-supported, and floating). Well control equipment systems are designed with components that provide wellbore pressure control in support of well operations. The following components may be used for operation under varying rig and well conditions: ― BOPs (blowout preventers); ― Choke and kill lines; ― Choke manifolds; ― Control systems; ― Auxiliary equipment. The primary functions of these systems are to confine well fluids to the wellbore, provide means to add fluid to the wellbore, and allow controlled volumes to be removed from the wellbore. Diverters, shut-in devices, and rotating head systems (rotating control devices) are not addressed in this standard (see API 64 and API 1 6RCD, respectively); their primary purpose is to safely divert or direct flow rather than to confine fluids to the wellbore. Procedures and techniques for well control are not included in this standard because they are beyond the scope of the equipment systems contained herein. This standard contains a section pertaining to surface BOP installations followed by a section pertaining to subsea BOP installations. To the extent that this document recommends specific equipment arrangements, it is recognized that other arrangements can be equally effective in addressing well requirements and achieving safety and operational efficiency. 2 Normative Reference The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document applies (including any addenda/errata). API Specification 6A, Specification for Wellhead and Tree Equipment API Specification 1 6A, Specification for Drill-through Equipment API Standard 1 6AR, Standard for Repair and Remanufacture of Drill-through Equipment API Recommended Practice 1 7H, Remotely Operated Tools and Interfaces on Subsea Production Systems API Recommended Practice 500, Recommended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class I, Division 1 and Division 2 API Recommended Practice 505, Recommended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class I, Zone 0, Zone 1 and Zone 2 ASME B1 .20.1 , Pipe Threads, General Purpose (Inch) ASME B31 .3, Process Piping ASME Boiler and Pressure Vessel Code (BPVC), Section IX: Welding and Brazing Qualifications NACE MR 01 75/ISO 1 51 56 2 3, (all parts) Petroleum and natural gas industries—Materials for use in H 2 S containing environments in oil and gas production 3 Terms, Definitions, and Abbreviations 3.1 Terms and Definitions For the purposes of this standard, the following terms and definitions apply. accumulator Pressure vessel charged with inert gas and used to store hydraulic fluid under pressure. acoustic control system Subsea control system that uses coded acoustic signals for communications and is normally used as a secondary control system having control of selected functions. adapter spool Spool used to connect drill-through equipment with different end connections, nominal size designations, and/or pressure ratings to each other. annular blowout preventer annular BOP Blowout preventer that uses a shaped elastomeric sealing element to seal the space between the tubular and the wellbore or an open hole.
3.1.9 blind shear ram BSR Closing and sealing component in a ram BOP that first shears certain tubulars in the wellbore and then seals off the bore or acts as a blind ram if there is no tubular in the wellbore. 3.1.10 blowout Uncontrolled flow of well fluids and/or formation fluids from the wellbore to the surface or into lower-pressured subsurface zones (underground blowout). 3.1.11 blowout preventer BOP Sealing ram or annular type device, which is within the scope of API 1 6A, installed on the wellhead or wellhead assemblies to contain welbore fluids either in the annular space between the casing and the tubulars or in an open hole during well drilling, completion, and testing operations. NOTE BOPs are not gate valves, workover/ intervention control packages, subsea shut-in devices, API 16ST well control components, intervention control packages, diverters, rotating heads, rotating control devices, rotating circulating devices, capping stacks, snubbing or stripping packages, or non-sealing rams. 3.1.12 BOP control system (closing unit) Equipment within the scope of API 16D used to operate the BOP stack. 3.1.13 BOP equipment Equipment within the scope of API 16A.

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