This document provides standardized calculation methods for the quantification of liquids and the determination of base prover volumes under defined conditions, regardless of the point of origin or destination or the units of measure required by governmental customs or statute. The criteria contained in this document allow different entities using various computer languages on different computer hardware (or manual calculations) to arrive at identical results using the same standardized input data. The publication rigorously specifies the equations for computing correction factors, rules for rounding, calculational sequence, and discrimination levels to be employed in the calculations. No deviations from these specifications are permitted since the intent of this document is to serve as a rigorous standard.

This standard can be purchase via the American Petroleum Institute (API) website: https://www.api.org/

This document provides standardized calculation methods for the quantification of liquids and the determination of base prover volumes under defined conditions,  regardless of the point of origin or destination or the units of measure required by governmental customs or statute. The criteria contained in this document allow different entities using various computer languages on different computer hardware (or manual calculations) to arrive at identical results using the same standardized 

input data.

The publication rigorously specifies the equations for computing correction factors, rules for rounding, calculational sequence, and discrimination levels to be employed in the calculations. No deviations from these specifications are permitted since the intent of this document is to serve as a rigorous standard.

This standard can be purchase via the American Petroleum Institute (API) webstore: https://www.apiwebstore.org/standards/12_2_2

This part provides standardized calculation methods for the determination of meter factors under defined conditions, regardless of the point of origin or destination or units of

measure required by governmental customs or statute. The criteria contained here will allow different entities using various computer languages on different computer hardware (or by manual calculations) to arrive at identical results using the same standardized input data. 

This document also specifies the equations for computing correction factors, including the calculation sequence, discrimination levels, and rules for rounding to be employed in the calculations. No deviations from these specified equations are permitted, since the intent of this document is to establish a rigorous standard.

This standard can be purchase via the American Petroleum Institute (API) webstore: https://www.apiwebstore.org/standards/12_2_3

1.1 This part provides standardized calculation methods for the determination of meter factors under defined conditions, regardless of the point of origin or destination or units of measure required by governmental customs or statute. The criteria contained here will allow different entities using various computer languages on different computer hardware (or by manual calculations) to arrive at identical results using the same standardized input data. 

2.2 This document also specifies the equations for computing correction factors, including the calculation sequence, discrimination levels, and rules for rounding to be employed in the calculations. No deviations from these specified equations are permitted, since the intent of this document is to establish a rigorous standard.

This standard can be purchase via the American Petroleum Institute (API) webstore https://www.apiwebstore.org/standards/12_2_5

This standard provides a single reference for engineering equations, uncertainty estimations, construction and installation requirements, and standardized implementation recommendations for the calculation of flow rate through concentric, square-edged, flange-tapped orifice meters. Both U.S. customary (USC), and international system of units

(SI) units are included.

This standard can be purchase via the American Petroleum Institute (API) webstore: https://www.apiwebstore.org/standards/14_3_1

This standard covers all the procedures required to determine the field data necessary to calculate a Base Prover Volume (BPV), of either Displacement Provers or Volumetric Tank Provers, by the Waterdraw Method of Calibration.

It will enable the user to perform all the activities necessary to prepare the prover, conduct calibration runs, and record all the required data  necessary to calculate the base volumes of displacement and tank provers. Evaluation of the results and troubleshooting of many calibration problems are also discussed. 

Detailed calculation procedures are not included in this standard. For complete details the of calculations applicable to this standard, refer to the latest edition of the API Manual of Petroleum Measurement Standards, Chapter 12, Section 2, Part 4, “Calculation of Prover Volumes by the Waterdraw Method.”

This standard can be purchase via the American Petroleum Institute (API) webstore: https://www.apiwebstore.org/standards/4_9_2

This specification establishes the minimum quality management system requirements for organizations that manufacture products or provide manufacturing-related  processes under a product specification for use in the petroleum and natural gas industry. 

This specification specifies the requirements of a quality management system for an organization to demonstrate its ability to consistently provide reliable products and manufacturing-related processes that meet customer and legal requirements.

If an organization performs activities addressed by this specification, no claims to exclusion of those activities are permitted. Where any requirement of this specification  cannot be applied due to the nature of an organization, the requirement can be considered for exclusion. Where exclusions are made, the basis for claiming exclusions is to be identified. Furthermore, such exclusions cannot affect the organization's ability, or responsibility, to provide products and related servicing that meet customer and

applicable regulatory requirements. Exclusions are limited to the following sections:

⎯ 5.4, Design and Development;

⎯ 5.7.1.2, Servicing;

⎯ 5.7.1.5, Validation of Processes for Production and Servicing;

⎯ 5.7.5, Customer-supplied Property;

⎯ 5.8, Control of Testing, Measuring, and Monitoring Equipment.

The quality management system requirements specified in this specification are in alignment with the section requirements and format of document used for the provision of services and use of service related product (API Q2). Information marked “NOTE” are not requirements but are provided for guidance in understanding or clarifying the associated requirement.

This standard can be purchase via the American Petroleum Institute (API) webstore: https://www.apiwebstore.org/standards/Q1

1 Scope

1.1 Application

This document defines the quality management system requirements for service supply organizations for the petroleum, and natural gas industries. It is intended to apply to the execution of upstream services during exploration, development and production in the oil and gas industry. This includes activities involved in oil and gas well

construction, intervention, production, and abandonment. This document applies to activities associated with well servicing, equipment repair/maintenance, and inspection activities. 

This document specifies requirements of a quality management system for an organization to demonstrate its ability to consistently provide services that meet customer, legal, and other applicable requirements.

This document was developed by a group of upstream technical experts. While this document and/or portions thereof could be applicable to other industry segments, it is recommended that other segments carefully review these requirements to determine their applicability and if necessary develop a segment annex identifying any segment specific requirements.

This standard can be purchase via the American Petroleum Institute (API) webstore https://www.apiwebstore.org/standards/Q2

This document establishes requirements and provides guidelines for subsurface safety valve (SSSV) system equipment. This includes requirements for SSSV system design, installation, operation, testing, redress, support activities, documentation, and failure reporting. SSSV system equipment addressed by this document includes control systems, control lines, SSSVs, and secondary tools as defined herein. SSSV types including surface controlled (SCSSV), sub-surface controlled (SSCSV), and sub-surface injection safety valves (SSISV) are included. Requirements for testing of SSSVs including frequency and acceptance criteria are included. Alternate technology SSSV equipment and systems are included in these requirements. This document is not applicable to design, qualification, or repair activities for SSSVs. This document does not specify when a SSSV is required. 

This standard can be purchase via the American Petroleum Institute (API) website www.api.org 

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.

This standard can be purchase via the American Petroleum Institute (API) website www.api.org