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Document API RP 12R1 is offered by IHS as part of an online subscription. This subscription contains many documents on the same topic.
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API RP 12R1 Document Information:
Title
Recommended Practice for Setting, Maintenance, Inspection, Operation, and Repair of Tanks in Production Service
American Petroleum Institute
Publication Date:
Aug 1, 1997
Scope:
This recommended practice should be considered as a guide on new
tank installations and maintenance of existing tanks. It contains
recommendations for good practices in (a) the collection of well or
lease production, (b) gauging, (c) delivery to pipeline carriers
for transportation, and (d) other production storage and treatment
operations. In particular, the spill prevention and
examination/inspection provisions of this recommended practice
should be companion to the spill prevention control and
countermeasures (SPCC) to prevent environmental damage.
This recommended practicei s intended primarily for application
to tanks fabricated to API Specifications 12B, D, F, and P
(sometimes called the API 12 series in this document) when employed
in on-land production service; but its basic principles are
applicablet o atmospheric tanks of other dimensions and
specifications when they are employed in similar oil and gas
production, treating, and processing services. It is not applicable
to refineries, petrochemical plants, marketing bulk stations, or
pipeline storage facilities operated by carriers. Tanks fabricated
to API Standard 650 or its predecessor (API Standard 12C) should be
maintained in accordance with API Standard 653.
This document recommends maintenance practices based on the
estimated corrosion rate life of various tank components. Corrosion
rate life of tank components will vary widely with location,
environment, service, type of fluid, and corrosion mitigation
techniques elected by the owner/operator. Recommendations for
specific corrosion mitigation techniques are not within the scope
of this document. For such recommendations, see publications of the
National Association of Corrosion Engineers (NACE) (see Section
2).
This document contains some specific safety recommendations
applicable to tanks. For complete safety recommendations, see
publications of the API Committee on Safety and Fire
Protection.
The schematic drawings included in this publication are examples
only of some features described in the document. Numerous
variations in piping systems and tank components are known to give
satisfactory service. Unusual grades of crude, particularly heavier
grades, may cause the owner/operator to elect other equally
satisfactory practices.
Lease automatic custody transfer (LACT) operations are covered
in API Specification 11N, and in the API Manual of Petroleum
Measurement Standards, Chapter 6.1.
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