Glossary
Browse the IADC Lexicon alphabetically or by category. Get comprehensive definitions of drilling industry terms.
Reactive MPD
Definition(s)
Reactive MPD
Using MPD methods and/or equipment as a contingency to mitigate drilling problems as they arise. Source: IADC UBO / MPD Glossary, December 2011. Global StandardsReadback
Definition(s)
Readback
An indication of a remote condition. Source: API SPEC 16D, Specification for Control Systems for Drilling Well Control Equipment and Control Systems for Diverter Equipment, Upstream Segment, Second Edition, July 2004. Global StandardsReadout
Definition(s)
Readout
Device that visually indicates a condition, voltage, or current. Typical devices used in inspection requirements are galvanometers and CRTs. Source: API RP 5A5, Field Inspection of New Casing, Tubing, and Plain-end Drill Pipe, Reaffirmed August 2010. Global StandardsReal Trip
Definition(s)
Real Trip
The shutdown is effectuated as a result of a monitored (or calculated) value in the control system exceeding a pre-set limit. Source: API STD 689, Collection and Exchange of Reliability and Maintenance Data for Equipment, First Edition, July 2007. Global StandardsReal-time Model
Definition(s)
Real-time Model
Uses SCADA data to run in lock step with the actual line or vessel. The goal is for calculated flows and pressures to track telemetered points, with consistent and reasonable accuracy, so that confidence can be gained in the model's ability to predict future operating conditions, as well as estimate conditions at non-telemetered locations. Source: IADC UBO / MPD Glossary, December 2011. Global StandardsReaming
Definition(s)
Reaming
A technique that involves forcing a leg into position by incremental vertical reciprocation to penetrate the spudcan into the soil at the required position. Reaming is one of the mitigation methods for reducing spudcan footprint interaction.
Source: ABS Guidance Notes on Geotechnical Performance of Spudcan Foundations, January 2017. Global StandardsReasonable Foreseeable Events
Definition(s)
Reasonable Foreseeable Events
The reasonably foreseeable events that have been derived from reviewing the hazards and event development scenarios in the Safety and Health documents or to identify those for which it is reasonably foreseeable that people will end up in the water are as follows; 1. Man Overboard 2. Helicopter emergency 3. Fire/Explosion on the installation 4. Well Blow out 5. Ship Collision Each reasonably foreseeable event is described in detail in Appendix 3. It includes a statement of the maximum number of people who could end up in the water and their clothing/survival equipment assembly. Source: NOGEPA Industrial Guideline No. 7, Rescue at Sea, Netherlands, Version 0, January 2008. Global StandardsReasonable Weather
Definition(s)
Reasonable Weather
Wind strengths of force six or less in the Beaufort scale, associated with sea states sufficiently moderate to ensure that green water is taken on board the unit’s weather deck at infrequent intervals only, or not at all. Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 1, Regulations, June 2013, Lloyd’s Register, Global StandardsReasonably Foreseeable Misuse
Definition(s)
Reasonably Foreseeable Misuse
use of a product, process or service in a way not intended by the supplier, but which may result from readily predictable human behaviour Source: ISO/IEC Guide 51:1999, Safety aspects – Guidelines for their inclusion in standards, Global StandardsRecertification
Definition(s)
Recertification
renewal of certification in defined intervals. Source: ISO/IEC TS 17027:2014, Conformity assessment – Vocabulary related to competence of persons used for certification of persons, Global StandardsReciprocating Compressor
Definition(s)
Reciprocating Compressor
- a piston-type positive displacement compressor which increases the pressure of a definite volume of gas by reducing the cylinder volume, resulting in a pulsating delivery of gas;
- any compressor which employs a piston working inside a cylinder to compress a gas; usually has "pockets" that allow for limited pressure and flow control.
Reclamation
Definition(s)
Reclamation
RECLAMATION shall mean the process of returning or restoring the surface of disturbed land as nearly as practicable to its condition prior to the commencement of oil and gas operations or to landowner specifications with an approved variance under Rule 502.b. Source: Oil and Gas Conservation Commission, Practice and Procedure, Code of Colorado Regulations, 2 CCR 404-1, February 2013. RegulationsReclamation
Means of repair involving, for example, the removal or addition of material to reclaim component parts which have sustained damage, in order to restore such parts to a serviceable condition in accordance with the relevant standard. Source: IEC 60079-19:2015, Explosive atmospheres – Part 19: Equipment repair, overhaul and reclamation, Edition 3.1, March 2015. Global StandardsRecognised Classification Society
Definition(s)
Recognised Classification Society
A classification society which is a full or associate member of IACS. Source: Rules for Classification – Offshore units, DNVGL-OU-0101, Offshore drilling and support units, DNV GL, July 2015. Global StandardsRecognized Classification Society
Definition(s)
Recognized Classification Society
Member of the International Association of Classification Societies (IACS), with recognized relevant competence and expertise of petroleum and natural gas activities, and with established rules and procedures for classification/certification of installations in the petroleum and natural gas industries. Source: ISO 18647:2017, Petroleum and natural gas industries — Modular drilling rigs for offshore fixed platforms, First Edition, August 2017. Global StandardsRecognized Classification Society
A classification society being a member of the International Association of Classification Societies (IACS), with recognized and relevant competence and experience from the synthetic fiber rope activities, and established rules/guidelines for design, manufacturing and testing of synthetic fiber ropes for use in the classification/certification activities.
Source: API RP 2SM Design, Manufacture, Installation, and Maintenance of Synthetic Fiber Ropes for Offshore Mooring, Second Edition, July 2014. Global StandardsRecognized Classification Society
Member of the international association of classification societies (IACS), with recognized and relevant competence and experience in floating structures, and with established rules and procedures for classification/certification of installations used in petroleum-related activities. Source: ISO 19901-7:2013, Petroleum and natural gas industries – Specific requirements for offshore structures – Part 7: Stationkeeping systems for floating offshore structures and mobile offshore units. Global StandardsRecognized Classification Society
Member of the international association of classification societies (IACS), with recognized and relevant competence and experience in jack-ups, and with established rules and procedures for classification/certification of such installations used in petroleum-related activities.- NOTE: Adapted from ISO 19901-7:2005, definition 3.23.
Recognized Standards
Definition(s)
Recognized Standards
Recognized standards are applicable international or national standards acceptable to the Administration or standards laid down and maintained by an organization which complies with the standards adopted by the Organization and which is recognized by the Administration. Source: Resolution MEPC.119(52), 2004 amendments to the International Code for the Construction and Equipment of Ships Carrying Dangerous Chemicals in Bulk (IBC Code), 15 October 2004. Regulatory guidance, International Maritime OrganizationRecommended Practice
Definition(s)
Recommended Practice (RP)
Standard to facilitate the broad availability of proven sound engineering and operating. Source: API RP 5A5, Field Inspection of New Casing, Tubing, and Plain-end Drill Pipe, Reaffirmed August 2010. Global StandardsRecommended Practice (RP)
The recommended practice publications cover proven technology and solutions which have been found by DNV to represent good practice, and which represent one alternative for satisfy the requirements stipulated in the DNV offshore standards or other codes and standards cited by DNV. Source: Offshore Standard DNV-OS-C101, Design of Offshore Steel Structures, General (LRFD Method, Det Norske Veritas, April 2011. Global StandardsRecord, Noun
Definition(s)
Record, Noun
Document or dataset created and maintained that provides objective evidence of activities performed, results achieved, or statements made.
Source: API STANDARD 16AR, Standard for Repair and Remanufacture of Drill-through Equipment, First Edition, April 2017. Global StandardsRecord, Noun
Retrievable document or dataset created that provides objective evidence of activities performed, results achieved, or statements made. Source: API Specification 16A, Specification for Drill-through Equipment, Fourth Edition, April 2017. Global StandardsRecord, Noun
Retrievable information. Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global Standards Source: API SPEC 16A, Specification for Drill-through Equipment, Third Edition, June 2004 (Errata/Supplement November 2004). Global StandardsRecordability
Definition(s)
Recordability
All injuries/illnesses that are work-related shall be considered Recordable if it results in death, days away from work, restricted work or transfer to another job, medical treatment beyond First Aid, loss of consciousness or if it involves a significant injury or illness. Source: API RP 75, Recommended Practice for Development of a Safety and Environmental Management Program for Offshore Operations and Facilities: Upstream Segment, Third Edition, May 2004. Global StandardsRecordable
Definition(s)
Recordable
Test performed and the results documented. Source: API Specification 16A, Specification for Drill-through Equipment, Fourth Edition, April 2017. Global StandardsRecordable
A type of event or incident, including an LOPC or an occupational injury or illness, or other outcome which has been determined to meet or exceed definitions, criteria or thresholds for inclusion and classification in data provided to OGP (or other agencies or stakeholders). The broader term ‘reportable’ is often used to indicate the wider range of KPI data collected within the company for local or corporate use, of which only part will also be recordable. Source: OGP Report No. 456, Process Safety – Recommended Practice on Key Performance Indicators, International Association of Oil & Gas Producers, November 2011. Global StandardsRecords
Definition(s)
Records
Retrievable information. Source: API SPEC 16C, Specification for Choke and Kill Systems, First Edition, January 1993 (Reaffirmed 2001). Global Standards Source: API SPEC 16RCD, Specification for Drill Through Equipment—Rotating Control Devices, Upstream Segment, First Edition, February 2005. Global StandardsRecord
“Record” includes any correspondence, memorandum, book, plan, map, drawing, diagram, pictorial or graphic work, photograph, film, microform, sound recording, videotape, machine readable record, and any other documentary material, regardless of physical form or characteristics, and any copy thereof; document. Source: Canadian Environmental Assessment Act, 1992, c. 37, Canada, as consolidated November 2003. LegislationRecord
A document stating results achieved or providing evidence of activities performed, including those required by sections 80 and 81 of the Regulations. Note: CSA Standard CAN/CSA-ISO 9000:05. Source: Source: Environmental Protection Plan Guidelines, The Canada-Newfoundland and Labrador Offshore Petroleum Board, Canada-Nova Scotia Offshore Petroleum Board, and National Energy Board, Canada, March 31, 2011. Regulatory Guidance Source: Safety Plan Guidelines, The Canada-Newfoundland and Labrador Offshore Petroleum Board, Canada-Nova Scotia Offshore Petroleum Board, and National Energy Board, Canada, March 31, 2011. Regulatory GuidanceRecoverable Energy
Definition(s)
Recoverable Energy
Head below the total headline; energy which is still useful for moving oil down the line or vessel. Source: IADC UBO / MPD Glossary, December 2011. Global StandardsRecovery
Definition(s)
Recovery
The activities after an incident or event to restore essential services and operations in the short and medium term and fully restore all capabilities in the longer term. Adapted from: NIPP. Extended Definition: In cybersecurity, response encompasses both automated and manual activities. Adapted from: National Infrastructure Protection Plan, NCPS Target Architecture Glossary. Source: NICCS™ Portal Cybersecurity Lexicon, National Initiative for Cybersecurity Careers and Studies (https://niccs.us-cert.gov/glossary) as of 11 November 2015, Global StandardsRecovery
The ability of a site to withstand and execute service and site restoration plans for affected assets and the reconstitution of operations and services through individual, private sector, nongovernmental, and public assistance programs that identify needs and define resources; provide housing and promote restoration; address long-term care and treatment of affected persons; implement additional measures for community restoration; incorporate mitigation measures and techniques, as feasible; evaluate the incident to identify lessons learned; and develop initiatives to mitigate the effects of future incidents.
Source: API RP 781 Security Plan Methodology for the Oil and Natural Gas Industries.1st Ed. September 2016. Global Standards
Source:API STANDARD 780, Security Risk Assessment Methodology for the Petroleum and Petrochemical Industries, First Edition, May 2013. Global Standards