k0

k0

Definition(s)

k0

Coefficient of earth pressure at-rest.

Source: ABS Guidance Notes on Geotechnical Performance of Spudcan Foundations, January 2017. Global Standards
K1

K1

Definition(s)

K1

Vertical stiffness.

Source: ABS Guidance Notes on Geotechnical Performance of Spudcan Foundations, January 2017. Global Standards
K2

K2

Definition(s)

K2

Horizontal stiffness.

Source: ABS Guidance Notes on Geotechnical Performance of Spudcan Foundations, January 2017. Global Standards
K3

K3

Definition(s)

K3

Rotational stiffness.

Source: ABS Guidance Notes on Geotechnical Performance of Spudcan Foundations, January 2017. Global Standards
Keel Joint

Keel Joint

Definition(s)

Keel Joint

Riser joint designed to withstand contact between the riser and the bottom of the moonpool.

Source: API Specification 16Q, Design, Selection, Operation, and Maintenance of Marine Drilling Riser Systems, Second Edition, April 2017. Global Standards
Keel Line

Keel Line

Definition(s)

Keel Line

Keel line is a line parallel to the slope of the keel passing amidships through: .1 the top of the keel at centreline or line of intersection of the inside of shell plating with the keel if a bar keel extends below that line, on a ship with a metal shell; or .2 in wood and composite ships, the distance is measured from the lower edge of the keel rabbet. When the form at the lower part of the midship section is of a hollow character, or where thick garboards are fitted, the distance is measured from the point where the line of the flat of the bottom continued inward intersects the centreline amidships. . <Chapter II-1, regulation 2>. Source: IMO Resolution MSC.216(82), amendments to the International Convention for the Safety of Life at Sea, 1974, as amended, 8 December 2006, International Maritime Organization. Legislation
Kelly

Kelly

Definition(s)

Kelly

The square or hexagonal shaped steel pipe connecting the swivel to the drill string. The kelly moves through the rotary table and transmits torque to the drill string. Source: API RP 7G, Recommended Practice for Drill Stem Design and Operating Limits, Upstream Segment, Sixteenth Edition, August 1998 (Addendum 2: September 2009). Global Standards  

Kelly

Square- or hexagonal-shaped steel pipe connecting the swivel to the drill pipe. NOTE The kelly moves through the rotary table and transmits torque to the drill stem. Source: API RP 7G-2, Recommended Practice for Inspection and Classification of Used Drill Stem Elements, First Edition, August 2009. Global Standards  

Kelly

Square or hexagonally shaped steel pipe connecting the swivel to the drill pipe that moves through the rotary table and transmits torque to the drill stem. Source: API SPEC 7-1, Specification for Rotary Drill Stem Elements, First Edition, March 2006 (Addendum April 2011). Global Standards  

Kelly

The square, hexagonal or other shaped steel pipe connecting the swivel to the drill pipe. The kelly moves through the kelly bushings, rotary table and rotates the drill string. Source: API RP 54, Recommended Practice for Occupational Safety for Oil and Gas Well Drilling and Servicing Operations, Third Edition, August 1999 (2007). Global Standards  

Kelly

The uppermost component of the drill string; the kelly is an extra-heavy joint of pipe with flat or fluted sides that is free to move vertically through a “kelly bushing” in the rotary table; the kelly bushing imparts torque to the kelly and thereby the drill string is rotated. Source: API RP 59, Recommended Practice for Well Control Operations, Second Edition, May 2006. Global Standards  

Kelly

The uppermost component of the drill string; the kelly is an extra-heavy joint of pipe with flat or fluted sides that is free to move vertically through a “kelly bushing” in the rotary table; the kelly bushing imparts torque to the kelly and thereby the drill string is rotated. Source: API RP 64, Recommended Practice for Diverter Systems Equipment and Operations, Second Edition, November 2001 (March 1, 2007). Global Standards  

Kelly

“Kelly” means a 3 or more sided shaped steel pipe connecting the swivel to the drill pipe. The kelly moves through the kelly bushing and the rotary table and transmits torque to the drill string. [Mich. Admin. Code R 408 (2013)]. Source: Oil and Gas Drilling and Servicing Operations, Michigan Administrative Code R 408, February 8, 2013. Regulations  

Kelly

The square or other shaped steel pipe connecting the swivel to the drill pipe. The kelly moves through the rotary table and transmits torque to the drill string. Source: Petroleum Safety Orders--Drilling and Production, Definitions, California Code of Regulations, 8 CCR § 6505, December 2012. Regulations  
Kelly Bushing

Kelly Bushing

Definition(s)

Kelly Bushing

An adapter that is fitted in the master bushing and by either square, pin, or other method, transmits torque from the rotary table to the kelly; simultaneously, it allows vertical movement of the Kelly when it works down.

Source:API SPECIFICATION 7K, Drilling and Well Servicing Equipment, Sixth Edition, December 2015. Global Standards
Kelly Cock

Kelly Cock

Definition(s)

Kelly Swivel Valve (Kelly Cock or Upper Kelly Valve)

A valve located between the kelly swivel and the kelly, used for well control when the kelly is in the hole. It works like a check valve when engaged. Source: API RP 54, Recommended Practice for Occupational Safety for Oil and Gas Well Drilling and Servicing Operations, Third Edition, August 1999 (2007). Global Standards  

Kelly Cock

A valve immediately above the kelly that can be closed to confine pressures inside the drill string. Source: API RP 59, Recommended Practice for Well Control Operations, Second Edition, May 2006. Global Standards  

Kelly Cock (Kelly Valve)

Valves installed immediately above and below the kelly that can be closed to confine pressures inside the drill string. Source: API STD 53, Blowout Prevention Equipment Systems for Drilling Wells, Upstream Segment, Fourth Edition, November 2012. Global Standards  

Kelly Cock

Valve installed between the swivel and the Kelly to prevent high-pressure backflow. Closing the valve keeps pressure off the swivel and rotary hose. Source: IADC UBO / MPD Glossary, December 2011. Global Standards  

Kelly Cock

A valve installed at one or both ends of the kelly that can be used to confine pressure inside the drill string. Source: Petroleum Safety Orders--Drilling and Production, Definitions, California Code of Regulations, 8 CCR § 6505, December 2012. Regulations
Kelly Saver Sub

Kelly Saver Sub

Definition(s)

Kelly Saver Sub

A short substitute that is made up onto the bottom of the kelly to protect the pin end of the kelly from wear during make-up and break-out operations. Source: API RP 7G, Recommended Practice for Drill Stem Design and Operating Limits, Upstream Segment, Sixteenth Edition, August 1998 (Addendum 2: September 2009). Global Standards  

Kelly Saver Sub

Short rotary sub that is made up onto the bottom of the kelly to protect the pin end of the kelly from wear during make-up and break-out operations. Source: API SPEC 7-1, Specification for Rotary Drill Stem Elements, First Edition, March 2006 (Addendum April 2011). Global Standards  
Kelly Swivel Valve

Kelly Swivel Valve

Definition(s)

Kelly swivel valve (kelly cock or upper kelly valve)

A valve located between the kelly swivel and the kelly, used for well control when the kelly is in the hole. It works like a check valve when engaged. Source: API RP 54, Recommended Practice for Occupational Safety for Oil and Gas Well Drilling and Servicing Operations, Third Edition, August 1999 (2007). Global Standards
Kelly Valve, Lower

Kelly Valve, Lower

Definition(s)

Kelly Valve, Lower

An essentially full-opening valve installed immediately below the kelly, with outside diameter equal to the tool joint outside diameter. Source: API RP 59, Recommended Practice for Well Control Operations, Second Edition, May 2006. Global Standards  

Kelly Valve, Lower

An essentially full opening valve below the Kelly, with an OD same as the drill pipe.. Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Kelvin

Kelvin

Definition(s)

Kelvin

Metric absolute temperature unit (degrees Celsius + 273.16).. Source: IADC UBO / MPD Glossary, December 2011. Global Standards
KEMS

KEMS

Definition(s)

KEMS

Kinetic energy measuring system. Source: NORSOK D-001, Drilling facilities, Rev. 3, December 2012. Global Standards
Kerosene or Superior Kerosene Oil

Kerosene or Superior Kerosene Oil

Definition(s)

Kerosene or Superior Kerosene Oil

“Kerosene or superior kerosene oil” means a middle distillate mixture of hydrocarbons which conforms to such specifications, as the Central Government may, in consultation with the Bureau of Indian Standards, notify from time to time. Source: The Petroleum and Natural Gas Regulatory Board Act, 2006, No. 19 of 2006, India, amended as of May 2013. Legislation
KEW

KEW

Definition(s)

KEW

Kernenergiewet. Nuclear Energy Act. Source: NOGEPA Industrial Guideline No. 16, Working with Naturally Occurring Radioactive Materials (NORM), Netherlands, Version 1, January 2009. Global Standards
Key

Key

Definition(s)

Key

The numerical value used to control cryptographic operations, such as decryption, encryption, signature generation, or signature verification. From: CNSSI 4009. Source: NICCS™ Portal Cybersecurity Lexicon, National Initiative for Cybersecurity Careers and Studies (https://niccs.us-cert.gov/glossary) as of 11 November 2015, Global Standards
Key Greenhouse Gas Operation

Key Greenhouse Gas Operation

Definition(s)

Key greenhouse gas operation

Key greenhouse gas operation means:
  1. an operation to make a well; or
  2. an operation to inject, on an appraisal basis, a greenhouse gas substance into a part of a geological formation; or
  3. an operation to store, on an appraisal basis, a greenhouse gas substance in a part of a geological formation; or
  4. an operation to inject, on an appraisal basis, air, petroleum or water into a part of a geological formation; or
  5. an operation to store, on an appraisal basis, air, petroleum or water in a part of a geological formation; or
  6. an operation to carry out a seismic survey or any other kind of survey; or
  7. an operation to monitor the behaviour of:
    1. a greenhouse gas substance; or
    2. air; or
    3. (petroleum; or
    4. water; stored in a part of a geological formation; or
  8. an operation to carry out baseline investigations relating to the storage of a greenhouse gas substance in a part of the geological formation; or
  9. an operation to take samples of the seabed or subsoil of an offshore area; or
  10. an operation specified in the regulations.
Source: Offshore Petroleum and Greenhouse Gas Storage Act 2006, Australia, amended 2012. Legislation
Key Management

Key Management

Definition(s)

Key Management

process of handling and controlling cryptographic keys and related material (such as initialization values) during their life cycle in a cryptographic system, including ordering, generating, distributing, storing, loading, escrowing, archiving, auditing, and destroying the keys and related material [11]. Source: ANSI/ISA–99.00.01–2007, Security for Industrial Automation and Control Systems, Part 1: Terminology, Concepts, and Models, 29 October 2007. National Standard
Key Pair

Key Pair

Definition(s)

Key Pair

A public key and its corresponding private key. Extended Definition: Two mathematically related keys having the property that one key can be used to encrypt a message that can only be decrypted using the other key. Adapted from: CNSSI 4009, Federal Bridge Certificate Authority Certification Policy 2.25. Source: NICCS™ Portal Cybersecurity Lexicon, National Initiative for Cybersecurity Careers and Studies (https://niccs.us-cert.gov/glossary) as of 11 November 2015, Global Standards
Key Performance Indicator

Key Performance Indicator

Definition(s)

Key Performance Indicator (KPI)

Quantifiable measure that an organization uses to gauge or compare performance. Source: API SPEC Q1, Specification for Quality Management System Requirements for Manufacturing Organizations for the Petroleum and Natural Gas Industry, Ninth Edition, June 2013 (Errata 2, March 2014). Global Standards

Key Performance Indicator (KPI)

Metric by which an organization measures the manner or quality of the functioning of its processes, service, or service-related product. Source: API Spec Q2, Specification for Quality Management System Requirements for Service,  Supply Organizations for the Petroleum and Natural Gas Industries, Upstream Segment, First Edition, December 2011. Global Standards  

Key performance indicator

A term used when an indicator has been established by a company for consistent application and aggregation at all levels of the organisation, and for periodic performance review by managers at these levels. Source: IOGP Report No. 510, Operating Management System Framework for controlling risk and delivering high performance in the oil and gas industry, International Association of Oil & Gas Producers, June 2014. Global Standards  

Key performance indicator (KPI)

Information or data that provides evidence of a company’s performance in managing its key risks, which in this guide are those risks related to asset integrity and process safety. KPIs may also be referred to as performance metrics. Source: OGP Report No. 456, Process Safety – Recommended Practice on Key Performance Indicators, International Association of Oil & Gas Producers, November 2011. Global Standards
Key Petroleum Operation

Key Petroleum Operation

Definition(s)

Key petroleum operation

Key petroleum operation means:
  1. an operation to make a well; or
  2. an operation to inject a substance into a part of a geological formation; or
  3. an operation to store a substance in a part of a geological formation; or
  4. an operation to carry out a seismic survey or any other kind of survey; or
  5. an operation to monitor the behaviour of a substance stored in a part of a geological formation; or
  6. an operation to take samples of the seabed or subsoil of an offshore area; or
  7. an operation specified in the regulations.
Source: Offshore Petroleum and Greenhouse Gas Storage Act 2006, Australia, amended 2012. Legislation
Key Resource

Key Resource

Definition(s)

Key Resource

A publicly or privately controlled asset necessary to sustain continuity of government and/or economic operations, or an asset that is of great historical significance. From: NCSD 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 Standards
Keylogger

Keylogger

Definition(s)

Keylogger

Software or hardware that tracks keystrokes and keyboard events, usually surreptitiously / secretly, to monitor actions by the user of an information system. Source: NICCS™ Portal Cybersecurity Lexicon, National Initiative for Cybersecurity Careers and Studies (https://niccs.us-cert.gov/glossary) as of 11 November 2015, Global Standards
Keyseating

Keyseating

Definition(s)

Keyseating

Formation of a longitudinal slot on the ID of a riser component due to a loss of material caused by friction wear from the rotating drill string or tripping equipment.

Source: API Specification 16Q, Design, Selection, Operation, and Maintenance of Marine Drilling Riser Systems, Second Edition, April 2017. Global Standards

Keyseating

The formation of a longitudinal slot in the bore of a riser system component caused by frictional wear of the rotating drill string on the riser component. Source: API RP 16Q, Recommended Practice for Design, Selection, Operation and Maintenance of Marine Drilling Riser Systems, First Edition, November 1993 (Reaffirmed August 2001). Global Standards  

Key-Seating

Formation of a longitudinal slot in the bore of a riser system component caused by frictional wear of the rotating drillstring on the riser component. Source: ISO 13624-1:2009, Petroleum and natural gas industries – Drilling and production equipment – Part 1:Design and operation of marine drilling riser equipment. Global Standards
Kick

Kick

Definition(s)

Kick

Influx of reservoir fluid into the wellbore during drilling or workover that results in shutting in the well and increased pressure below the shut-in device (usually a BOP). Source: API Standard 2RD, Dynamic Risers for Floating Production Systems, Second Edition, September 2013. Global Standards

Kick

Influx of formation liquids or gas into the wellbore. NOTE: Without corrective measure, this condition can result in a blowout. Source: API STD 53, Blowout Prevention Equipment Systems for Drilling Wells, Upstream Segment, Fourth Edition, November 2012. Global Standards  

Kick

Intrusion of formation fluids into the well bore. Source: API RP 59, Recommended Practice for Well Control Operations, Second Edition, May 2006. Global Standards  

Kick

Unplanned, unexpected influx of liquid or gas from the formation into the wellbore, where the pressure of fluid in the wellbore is insufficient to control the inflow. If not corrected can result in a blowout. Source: IADC UBO / MPD Glossary, December 2011. Global Standards  

Kick

"Kick" means the intrusion of formation liquids or gas that results in an increase in circulation pit volume. Without corrective measures, this condition can result in a blowout. Source: Corporation Commission, Oil and Gas Conservation, Oklahoma Administrative Code 165:10, February 2013. Regulations
Kick Detection Automation Software

Kick Detection Automation Software

Definition(s)

Kick Detection Automation Software

Software integrated into drilling control software or as a stand-alone installation for the express purpose of automating the detection of a well kick. Kick detection software includes:
  1. The software itself.
  2. Integration of the software into the drilling control and data systems onboard the rig.
  3. Policies and procedures for the use of kick detection software.
Leadership and management oversight to ensure the software is being properly utilized. Source: Well Control Institute. Well Control Institute
Kick Tolerance

Kick Tolerance

Definition(s)

Kick Tolerance

Maximum influx to equal MAASP. Note - MAASP is based on weakest zone in the wellbore, normally assumed to be at casing shoet. Source: NORSOK D-010, Well integrity in drilling and well operations, Rev. 3, August 2004. Global Standards
Kick-Off Point

Kick-Off Point

Definition(s)

Kick-Off Point

“Kick-off point” means the point at which a directional well is intentionally deviated from vertical. Source: Oil and Gas, New Mexico Administrative Code Title 19, Chapter 15, January 2013. Regulations
Kill

Kill

Definition(s)

Kill

Action taken to kill well and prevent or correct blowout. Includes circulation of heavy weight fluid downhole, circulating kick out, and closing of blowout preventers. Source: IADC UBO / MPD Glossary, December 2011. Global Standards