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API RP 54-2019 pdf free download

API RP 54-2019 pdf free download.Occupational Safety and Health for Oil and Gas Well Drilling and Servicing Operations.
1 Scope 1.1 Coverage The purpose of this document is to recommend practices and procedures for promoting and maintaining safe and healthy working conditions for personnel in drilling and well servicing operations. 1.2 Applicability These recommendations apply to rotary drilling rigs, well servicing rigs, and special services as they relate to operations on location. It is intended that the applicable requirements and recommendations of some sections of the document be applied, as appropriate, to other sections. The recommendations are not intended to cover seismic drilling or water well drilling operations. These recommendations do not apply to site preparation and site remediation operations. 1.3 Responsibility Employers have the responsibility to identify, communicate, and mitigate hazards at the work site. A process of risk assessment may be an effective method to protect employees at the work site. 2 Normative References The following referenced documents are indispensable for the application of this standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced standard applies (including any addenda/errata). API Recommended Practice 500, Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class 1, Division 1 and Division 2 API Recommended Practice 505, Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class 1, Zone 0, Zone 1 and Zone 2 ASSE Z359.1, The Fall Protection Code ASTM F2413, Standard Specification for Performance Requirements for Protective (Safety) Toe Cap Footwear ISEA Z87.1, American National Standard for Occupational and Educational Eye and Face Protection Devices ISEA Z89.1, American National Standard for Industrial Head Protection NACE MR0175/ISO 15156-1, Requirements for Sulfide Stress Cracking Resistant Metallic Material for Oil Field Equipment
3 Terms, Definitions, and Abbreviations 3.1 Terms and Definitions For the purpose of this document, the following terms and definitions apply. 3.1.1 acidizing The act of pumping an acidic solution into a wellbore to remove materials from the perforations, pipe, and walls of the producing formation or pumping the solution into formations to improve permeability. 3.1.2 adequate ventilation Air volume and velocity that is sufficient to dilute, render harmless, and carry away toxic, flammable, or explosive concentrations of gasses, dust, fumes or vapors. 3.1.3 approved Officially agreed to or accepted as satisfactory. 3.1.4 authorized person A person assigned by an employer to perform or supervise the performance of a specific type of duty or duties at the worksite. 3.1.5 blooey line Return line for air drilling. 3.1.6 blowout An uncontrolled flow of well fluids or formation fluids, or both, from the wellbore or into lower pressured subsurface zones (underground blowout). 3.1.7 blowout preventer BOP A device attached to the wellhead or tree that allows the well to be closed in with or without a string of pipe or wireline in the borehole. 3.1.8 casing Pipe installed in the wellbore and cemented (or secured by some other means) in place to retain the borehole dimension and seal off hydrocarbon and water-bearing formations. 3.1.9 cathead spool A concave, rotating, pulley-type device mounted on the end of the cat shaft of the drawworks.
3.1.11 catwalk Elongated platform adjacent to the rig floor where pipe is laid out and lifted into the derrick. NOTE The catwalk is connected to the rig floor by a pipe ramp on rigs with a sub-structure; some catwalks include moveable troughs and rams that can elevate and push pipe to the rig floor or lower pipe away from the rig floor without using a winch or cat line to move the pipe. 3.1.12 cellar A stabilized excavation around the wellhead to provide space for equipment at the top of the wellbore. 3.1.13 cementing Making cement into a slurry and pumping it into a wellbore. 3.1.14 circulate Cycling fluid from the surface through the pipe and back to the surface through the annular space. NOTE Annular space is the space surrounding the pipe in the wellbore. 3.1.15 combustible liquid A liquid having a flashpoint at or above 100 °F (37.8 °C). NOTE Check with local regulatory or other recognized authority for applicable requirements. 3.1.16 confined space A tank, excavation, or space that meets the following: — is large enough and configured so that personnel can bodily enter and perform assigned work; — has limited or restricted means for entry or exit (e.g. tanks and vessels, storage bins, hoppers, vaults, cellars, excavations, and pits); — is not designed for or meant to be continuously occupied by personnel.

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