Casing Cementing

Casing Cementing

Definition(s)

Casing Cementing

Complete or partial annular cementing of a full casing string. Source: API RP 10B-2, Recommended Practice for Testing Well Cements, First Edition, July 2005 (Reaffirmed: July 2010). Global Standards  
Bulk Density

Bulk Density

Definition(s)

Bulk Density

Mass per unit volume of a dry material containing entrained air. Source: API RP 10B-2, Recommended Practice for Testing Well Cements, First Edition, July 2005 (Reaffirmed: July 2010). Global Standards  
Batch Mixing

Batch Mixing

Definition(s)

Batch Mixing

Process of mixing and holding a volume of cement slurry prior to placement in the wellbore. Source: API RP 10B-2, Recommended Practice for Testing Well Cements, First Edition, July 2005 (Reaffirmed: July 2010). Global Standards  
Assumed Surface Temperature

Assumed Surface Temperature

Definition(s)

Assumed Surface Temperature (TAS)

Assumed temperature at surface used for calculating a pseudo-temperature gradient. Source: API RP 10B-2, Recommended Practice for Testing Well Cements, First Edition, July 2005 (Reaffirmed: July 2010). Global Standards  
Additive

Additive

Definition(s)

Additive

Any chemical substance or combination of substances, including a proppant, contained in a hydraulic fracturing fluid that is intentionally added to a base fluid for a specific purpose whether or not the purpose of any such substance or combination of substances is to create fractures in a formation. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. Regulations  

Additive

Material added to a cement slurry to modify or enhance some desired property.
  • NOTE: Properties that are commonly modified include setting time (by use of retarders or accelerators), fluid loss, viscosity, etc.
Source: API SPEC 10A, Specification for Cements and Materials for Well Cementing, Twenty-fourth Edition, December 2010. Global Standards

Additive

Material added to a cement slurry to modify or enhance some desired property.
  • NOTE: Common properties that are modified include: setting time (by use of retarders or accelerators), fluid loss control, viscosity, etc.
Source: API RP 10B-2, Recommended Practice for Testing Well Cements, First Edition, July 2005 (Reaffirmed: July 2010). Global Standards
Absolute Volume

Absolute Volume

Definition(s)

Absolute Volume

Reciprocal of absolute density. NOTE It is expressed as volume per unit mass. Source: API RP 10B-2, Recommended Practice for Testing Well Cements, First Edition, July 2005 (Reaffirmed: July 2010). Global Standards
Water-Wetting Capability

Water-Wetting Capability

Definition(s)

Water-Wetting Capability

Capability of a fluid to alter the quality or state of being water-wetted. NOTE A fully water-wet state is considered most desirable to provide cement bonding. Source: API RP 10B-2, Recommended Practice for Testing Well Cements, First Edition, July 2005 (Reaffirmed: July 2010). Global Standards
Rate of Penetration (ROP)

Rate of Penetration (ROP)

Definition(s)

Rate of Penetration (ROP)

Common term for drilling rate; usually expressed in units of ft/hour or m/hour. Source: API STD 65 – Part 2, Isolating Potential Flow Zones During Well Construction, Upstream Segment, Second Edition, December 2010. Global Standards  
PWD

PWD

Definition(s)

PWD

Pressure while drilling. Source: API STD 65 – Part 2, Isolating Potential Flow Zones During Well Construction, Upstream Segment, Second Edition, December 2010. Global Standards  
Pressure While Drilling (PWD)

Pressure While Drilling (PWD)

Definition(s)

Pressure While Drilling (PWD)

The measurement of downhole pressure while drilling by a tool installed in the BHA. Source: API STD 65 – Part 2, Isolating Potential Flow Zones During Well Construction, Upstream Segment, Second Edition, December 2010. Global Standards  
RT

RT

Definition(s)

RT

Radiographic examination (method) or radiography. Source: API 570, Piping Inspection Code: In-service Inspection, Rating, Repair, and Alteration of Piping Systems, Fourth Edition, February 2016, with Addendum May 2017. Global Standards

RT

Radiographic testing. Source: API RP 8B, Recommended Practice for Procedures for Inspections, Maintenance, Repair and Remanufacture of Hoisting Equipment, Seventh Edition, March 2002 (Reaffirmed: August 2012). Global Standards
PSL

PSL

Definition(s)

PSL

Categories of design requirements based on the application.

Source: API Standard 2CCU, Offshore Cargo Carrying Units, First Edition, August 2017. Global Standards

PSL

Product specification level. Source: API Standard 2CCU, Offshore Cargo Carrying Units, First Edition, August 2017. Global Standards Source: API RP 8B, Recommended Practice for Procedures for Inspections, Maintenance, Repair and Remanufacture of Hoisting Equipment, Seventh Edition, March 2002 (Reaffirmed: August 2012). Global Standards Source: API SPEC 5CRA, Specification for Corrosion Resistant Alloy Seamless Tubes for Use as Casing, Tubing and Coupling Stock, Upstream Segment, First Edition, February 2010 (Errata August 2011). Global Standards Source: API SPEC 5CT, Specification for Casing and Tubing, Upstream Segment, Ninth Edition, July 2011 (Errata September 2012). Global Standards Source: API SPEC 5DP, Specification for Drill Pipe, First Edition, August 2009. Global Standards Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global Standards Source: API SPEC 8C, Drilling and Production Hoisting Equipment (PSL 1 and PSL 2), Fifth Edition, April 2012. Global Standards Source: API SPEC 17D, Design and Operation of Subsea Production Systems—Subsea Wellhead and Tree Equipment, Upstream Segment, Second Edition May 2011 (Errata September 2011). Global Standards Source: API SPEC 17J, Specification for Unbonded Flexible Pipe, Third Edition, July 2008. Global Standards
Testing

Testing

Definition(s)

Testing

Procedures used to determine pressure tightness, material hardness, strength, and notch toughness.
  • EXAMPLE: Example: Pressure testing, whether performed hydrostatically, pneumatically, or a combination of hydrostatic/pneumatic or mechanical testing.
  • NOTE: Testing does not refer to NDE using techniques such as PT, MT, etc.
Source: API 570, Piping Inspection Code: In-service Inspection, Rating, Repair, and Alteration of Piping Systems, Fourth Edition, February 2016, with Addendum May 2017. Global Standards

Testing

Within this document, testing generally refers to either pressure testing, whether performed hydrostatically, pneumatically, or a combination hydrostatic/pneumatic, or mechanical testing to determine such data as material hardness, strength, and notch toughness. Testing, however, does not refer to NDE using techniques such as liquid penetrant examination (PT), magnetic particle examination (MT), ultrasonic examination (UT), radiographic examination (RT), etc.

Source: API 510, Pressure Vessel Inspection Code: In-service Inspection, Rating, Repair, and Alteration, Tenth Edition, May 2014, with Addendum May 2017. Global Standards

Testing

Action carried out on a piece of equipment to ensure that it can perform a required function. Source: API RP 8B, Recommended Practice for Procedures for Inspections, Maintenance, Repair and Remanufacture of Hoisting Equipment, Seventh Edition, March 2002 (Reaffirmed: August 2012). Global Standards  

Testing

Within this document, testing generally refers to either pressure testing whether performed hydrostatically, pneumatically or a combination hydrostatic/pneumatic, or mechanical testing to determine such data as material hardness, strength and notch toughness. Testing, however, does not refer to NDE using techniques such as PT, MT, etc. Source: API 510, Pressure Vessel Inspection Code: In-Service Inspection, Rating, Repair, and Alteration Downstream Segment, Ninth Edition, June 2006. Global Standards
Special Process

Special Process

Definition(s)

Special Process

Operation that can change or affect the mechanical properties, including toughness, of the materials used in equipment. Source: API RP 8B, Recommended Practice for Procedures for Inspections, Maintenance, Repair and Remanufacture of Hoisting Equipment, Seventh Edition, March 2002 (Reaffirmed: August 2012). Global Standards  

Special Process

Operation that may change or affect the mechanical properties, including toughness, of the materials used in the equipment. Source: API SPEC 7K, Drilling and Well Servicing Equipment Upstream Segment, Fifth Edition, June 2010 (August 2010). Global Standards Source:API SPECIFICATION 7K, Drilling and Well Servicing Equipment, Sixth Edition, December 2015. Global Standards  

Special Process

An operation that can change or affect the mechanical properties, including toughness, of the materials used in the equipment. Source: API SPEC 8C, Drilling and Production Hoisting Equipment (PSL 1 and PSL 2), Fifth Edition, April 2012. Global Standards  

Special Process

Operation which converts or affects material properties. Source: API SPEC 16A, Specification for Drill-through Equipment, Third Edition, June 2004 (Errata/Supplement November 2004). Global Standards  

Special Process

A process where some aspects of the required quality cannot be assured by subsequent inspection of the processed material alone. Manufacturing special processes include welding, forming and the application of protective treatments. Inspection and testing processes classified as special processes include non-destructive examination and pressure and leak testing. Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 4, Steel Unit Structures, June 2013, Lloyd’s Register, Global Standards
Serviceability

Serviceability

Definition(s)

Serviceability

Condition of a piece of equipment at any point in time that affects the ability of the equipment to perform its function(s) as intended. Source: API RP 8B, Recommended Practice for Procedures for Inspections, Maintenance, Repair and Remanufacture of Hoisting Equipment, Seventh Edition, March 2002 (Reaffirmed: August 2012). Global Standards  

Serviceability

Ability of a structure or structural component to perform adequately for normal functional use. 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 Standards
Primary-Load-Carrying Component

Primary-Load-Carrying Component

Definition(s)

Primary-Load-Carrying Component

Component of the equipment through which the primary load is carried. Source: API RP 8B, Recommended Practice for Procedures for Inspections, Maintenance, Repair and Remanufacture of Hoisting Equipment, Seventh Edition, March 2002 (Reaffirmed: August 2012). Global Standards Source: API SPEC 7K, Drilling and Well Servicing Equipment Upstream Segment, Fifth Edition, June 2010 (August 2010). Global Standards Source:API SPECIFICATION 7K, Drilling and Well Servicing Equipment, Sixth Edition, December 2015. Global Standards Source: API SPEC 8C, Drilling and Production Hoisting Equipment (PSL 1 and PSL 2), Fifth Edition, April 2012. Global Standards
Primary Load

Primary Load

Definition(s)

Primary Load

Axial load to which the equipment is subjected in operation. Source: API RP 8B, Recommended Practice for Procedures for Inspections, Maintenance, Repair and Remanufacture of Hoisting Equipment, Seventh Edition, March 2002 (Reaffirmed: August 2012). Global Standards  

Primary Load

Load which is independent of structural deformation in the riser and induces an internal force that is necessary to satisfy the laws of static equilibrium. NOTE The internal force acts as long as the load is applied, and does not diminish when yielding occurs. EXAMPLE Internal pressure, external hydrostatic pressure, self-weight, contents and buoyancy of the riser. Source: API RP 17G, Recommended Practice for Completion/Workover Risers, Second Edition, July 2006 (Reaffirmed April 2011). Global Standards  

Primary Load

Load that arises within the equipment when the equipment is performing its primary design function. Source: API SPEC 7K, Drilling and Well Servicing Equipment Upstream Segment, Fifth Edition, June 2010 (August 2010). Global Standards Source:API SPECIFICATION 7K, Drilling and Well Servicing Equipment, Sixth Edition, December 2015. Global Standards  

Primary Load

Axial load that equipment is subjected to in operations. Source: API SPEC 8C, Drilling and Production Hoisting Equipment (PSL 1 and PSL 2), Fifth Edition, April 2012. Global Standards
Load Test

Load Test

Definition(s)

Load Test

Test wherein a load is applied under controlled and monitored conditions to verify the serviceability of equipment. Source: API RP 8B, Recommended Practice for Procedures for Inspections, Maintenance, Repair and Remanufacture of Hoisting Equipment, Seventh Edition, March 2002 (Reaffirmed: August 2012). Global Standards  
Expendable Parts

Expendable Parts

Definition(s)

Expendable Parts

Parts normally used up or consumed in service. EXAMPLES Seals, gaskets, filters, packing, V-belts, covers, guards, breathers, drains and miscellaneous hardware and fasteners. Source: API RP 8B, Recommended Practice for Procedures for Inspections, Maintenance, Repair and Remanufacture of Hoisting Equipment, Seventh Edition, March 2002 (Reaffirmed: August 2012). Global Standards    
μW

μW

Definition(s)

μW

Microwatts. Source: API RP 7G-2, Recommended Practice for Inspection and Classification of Used Drill Stem Elements, First Edition, August 2009. Global Standards
WBM

WBM

Definition(s)

WBM

Water-based mud. Source: API RP 7G-2, Recommended Practice for Inspection and Classification of Used Drill Stem Elements, First Edition, August 2009. Global Standards Source: Deepwater Well Control Guidelines. IADC Guidelines
UDP

UDP

Definition(s)

UDP

Used Drill Pipe. Source: API RP 7G-2, Recommended Practice for Inspection and Classification of Used Drill Stem Elements, First Edition, August 2009. Global Standards  

UDP

User Datagram Protocol. Source: ISO/IEC 27032:2015, Information technology — Security techniques — Guidelines for cybersecurity, First Edition, July 2012. Global Standards
TPR

TPR

Definition(s)

TPR

Taper. Source: API RP 7G-2, Recommended Practice for Inspection and Classification of Used Drill Stem Elements, First Edition, August 2009. Global Standards
TJ

TJ

Definition(s)

TJ

Tool joint. Source: API RP 7G-2, Recommended Practice for Inspection and Classification of Used Drill Stem Elements, First Edition, August 2009. Global Standards  

TJ

Telescopic joint. Source: Deepwater Well Control Guidelines. IADC Guidelines
PPGE

PPGE

Definition(s)

PPGE

Pounds per gallon equivalent density. Source: API STD 65 – Part 2, Isolating Potential Flow Zones During Well Construction, Upstream Segment, Second Edition, December 2010. Global Standards  
SWBM

SWBM

Definition(s)

SWBM

Synthetic water-based mud. Source: API RP 7G-2, Recommended Practice for Inspection and Classification of Used Drill Stem Elements, First Edition, August 2009. Global Standards
Potential Flow Zone

Potential Flow Zone

Definition(s)

Potential Flow Zone

Any zone in a well where flow is possible under when wellbore pressure is less than pore pressure. Source: API STD 65 – Part 2, Isolating Potential Flow Zones During Well Construction, Upstream Segment, Second Edition, December 2010. Global Standards  

Potential Flow Zone

“Potential flow zone” means any zone in a well where hydrocarbons or other fluids can flow when wellbore pressure is less than pore pressure and isolation of such zones is necessary to: (a) Isolate hydrocarbons that may be present in testable or commercial quantities; (b) Prevent over-pressurization of the surface casing annulus; or (c) Maintain well control when drilling on fluid below the zone. Source: Division of Mineral Resources Management - Oil and Gas, Ohio Administrative Code, Chapter 1501:9, January 2012. Regulations  
Pore Pressure (PP)

Pore Pressure (PP)

Definition(s)

Pore Pressure (PP)

Pore pressure is the pressure of the fluid inside the pore spaces of a formation. Source: API STD 65 – Part 2, Isolating Potential Flow Zones During Well Construction, Upstream Segment, Second Edition, December 2010. Global Standards  

Pore Pressure (formation pressure)

Pressure exerted by the fluids within the pore space of a formation. Source: API RP 59, Recommended Practice for Well Control Operations, Second Edition, May 2006. Global Standards  

Pore Pressure

Pressure exerted by fluids in a formation pore space. Source: IADC UBO / MPD Glossary, December 2011. Global Standards  

Pore Pressure

The amount of force that is being exerted into the borehole by fluids or gases within the formation that has been penetrated. Source: NOGEPA Industrial Guideline No. 43, Surface BOP Review, Best Practices Checklist, Netherlands, Version 0, December 2011. Global Standards
SOBM

SOBM

Definition(s)

SOBM

Synthetic oil-based mud. Source: API RP 7G-2, Recommended Practice for Inspection and Classification of Used Drill Stem Elements, First Edition, August 2009. Global Standards
S/N

S/N

Definition(s)

S/N

Signal-to-noise ratio. Source: API RP 7G-2, Recommended Practice for Inspection and Classification of Used Drill Stem Elements, First Edition, August 2009. Global Standards