Library / Applicable to all Oil & Gas Operators GUIDELINES FOR THE DESIGN, CONSTRUCTION, OPERATION AND MAINTENANCE OF OIL AND GAS PIPELINE SYSTEMS IN NIGERIA Code: DPR Guide 0027 – 2021
Applicable to all Oil & Gas Operators GUIDELINES FOR THE DESIGN, CONSTRUCTION, OPERATION AND MAINTENANCE OF OIL AND GAS PIPELINE SYSTEMS IN NIGERIA Code: DPR Guide 0027 – 2021
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Applicable to all Oil & Gas Operators GUIDELINES FOR THE DESIGN, CONSTRUCTION, OPERATION AND MAINTENANCE OF OIL AND GAS PIPELINE SYSTEMS IN NIGERIA Code: DPR Guide 0027 – 2021 Effective Date: 14th October 2021 This is a property of the Department of Petroleum Resources. All rights reserved 18 iv. No used fitting of an existing pipeline shall be reused on a new pipeline without its original specification being identified and confirmed to be capable to perform the new service v. Threaded joints at both internal and external portions shall all be of the tapered line pipeline thread type conforming with API SPEC 5B or NPT in accordance with ASME B1.20.1-2013 vi. The least nominal wall thickness of the threaded portion of the pipe shall not be less than the value specified in ASME B36.10M-2018 vii. All threaded joints shall be on sections of the pipeline above ground. viii. If two or more pipelines are to be connected in manner that one will operate at a pressure higher than the other, they shall be so designed that the pipeline system operating at the lower pressure shall not be subjected to any pressure greater than its licensed operating pressure. ix. All pipe fittings, valves and equipment connected to the pipeline shall have manufacturers’ ratings which are equal to or greater than the proposed maximum operating pressure of the pipeline. d. All pipelines shall have Remote Monitoring System Remote Monitoring systems installed on them. Note: Other internationally recognised standards approved by the Department shall be accepted. 3.3 Minimum Construction Requirements This procedure shall apply to new pipelines construction and replacements of existing pipelines. The pipeline construction shall generally follow the steps outlined in Chapter V of the standard ASME B 31.4-2019 or its subsequent revisions. The construction code shall be guided by the following: i. The licencee shall inform the Department prior to the start of construction. Nominated technical officers of the Department shall continue to provide regulatory guidance. ii. All metallic pipeline material to be buried shall be coated with any of the following systems – coal-tar enamel, Asphalt enamel, polyethylene tape, epoxy,
CodesPDF20212021-1024