Closure Mechanism

Closure Mechanism

Definition(s)


Closure Mechanism

A system of parts that operate to close the tool, such as to close the inside diameter (ID), or to close on opening to/from the ID to the outside diameter (OD).

Source:API SPECIFICATION 19TT, Specification for Downhole Well Test Tools and Related Equipment, First Edition, October 2016. Global Standards

Circulating Valve

Circulating Valve

Definition(s)


Circulating Valve

Downhole device to provide communication/isolation between annulus and work string.

Source:API SPECIFICATION 19TT, Specification for Downhole Well Test Tools and Related Equipment, First Edition, October 2016. Global Standards
Brazing

Brazing

Definition(s)


Brazing

Process of joining metal using a nonferrous filler, the filler having a melting point below that of the metal being joined. Source:API SPECIFICATION 19TT, Specification for Downhole Well Test Tools and Related Equipment, First Edition, October 2016. Global Standards
Bill of Materials

Bill of Materials

Definition(s)


Bill of Materials

Controlled list of components of an assembly.

Source:API SPECIFICATION 19TT, Specification for Downhole Well Test Tools and Related Equipment, First Edition, October 2016. Global Standards
Batch Lot

Batch Lot

Definition(s)


Batch Lot

Material or components that have undergone the same process or series of processes and are traceable to one batch of material.

Source:API SPECIFICATION 19TT, Specification for Downhole Well Test Tools and Related Equipment, First Edition, October 2016. Global Standards
Base Design

Base Design

Definition(s)


Base Design

Design of a specified size, type, and model of a downhole well test tool that meets the requirements of this specification.

Source:API SPECIFICATION 19TT, Specification for Downhole Well Test Tools and Related Equipment, First Edition, October 2016. Global Standards
Absolute Pressure Dependency

Absolute Pressure Dependency

Definition(s)


Absolute Pressure Dependency

A condition in which a tool has an atmospheric or nonpressure balanced chamber, or seals having multiple sealing elements in a common seal gland, or seal systems having multiple seal glands where an atmospheric space can exist between glands.

Source:API SPECIFICATION 19TT, Specification for Downhole Well Test Tools and Related Equipment, First Edition, October 2016. Global Standards
Downhole Well Test

Downhole Well Test

Definition(s)


Downhole Well Test

A downhole well test is an operation deploying a temporary completion in a well to safely acquire dynamic rates, formation pressure/temperature, and formation fluid data.

Source:API SPECIFICATION 19TT, Specification for Downhole Well Test Tools and Related Equipment, First Edition, October 2016. Global Standards
Stress Relaxation

Stress Relaxation

Definition(s)


Stress Relaxation

The time-dependent reduction in stress of a component when subjected to a constant strain (see creep). Source:API SPECIFICATION 7K, Drilling and Well Servicing Equipment, Sixth Edition, December 2015. Global Standards
Slip Bowls

Slip Bowls

Definition(s)


Slip Bowls

A cylindrical body with a tapered inner surface, either one piece or segmented, that supports the slips.

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

Rotary Slips

Definition(s)


Rotary Slips

A device for the purpose of suspending tubular goods of any type from the rotary table, not capable of being used as elevators, that have some element on the internal diameter to grip the outer diameter surface of the pipe body of various tubular goods, and a tapered outside diameter to fit inside slip bowls that are operated manually or by spring(s) and/or pneumatic or hydraulic power that are installed above, on, in, or partly in the master bushing.

Source:API SPECIFICATION 7K, Drilling and Well Servicing Equipment, Sixth Edition, December 2015. Global Standards
Rotary Slip System

Rotary Slip System

Definition(s)


Rotary Slip System

The combination of rotary slips and their accompanying slip bowls.

Source:API SPECIFICATION 7K, Drilling and Well Servicing Equipment, Sixth Edition, December 2015. Global Standards
Primary Load-bearing Components

Primary Load-bearing Components

Definition(s)


Primary Load-bearing Components

The primary load-bearing components for a mud pump shall be defined as those containing the discharge pressure, with the exception of expendable items and closure components such as liners, pistons, piston rods, packing, packing glands, valves and seats, covers, heads, clamps, bushings, plugs, and fasteners.

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

Load Variance

Definition(s)


Load Variance

A measure of how widely values are dispersed from the average value in load limiting designs (reference Annex E). Source:API SPECIFICATION 7K, Drilling and Well Servicing Equipment, Sixth Edition, December 2015. Global Standards
Load-limiting Component

Load-limiting Component

Definition(s)


Load-limiting Component

A component, material, or mechanism that will release or limit the primary load in the event of an overload in load-limiting designs (reference Annex E). Source:API SPECIFICATION 7K, Drilling and Well Servicing Equipment, Sixth Edition, December 2015. Global Standards
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
Glass Transition Temperature

Glass Transition Temperature

Definition(s)


Glass Transition Temperature

Temperature at which the amorphous portion of the polymer undergoes a marked change in properties on passing from the rubbery to glassy state.
  • Note: 1 to entry: This observed change in properties is associated with the virtual cessation of local molecular motion in the polymer. Below their glass-transition temperature, amorphous polymers have many of the properties associated with ordinary inorganic glasses, while above this temperature the polymers possess rubbery characteristics.
Source: ISO 14692-1:2017, Petroleum and natural gas industries — Glass-reinforced plastics (GRP) piping — Part 1: Vocabulary, symbols, applications and materials, Second Edition, August 2017. Global Standards

Glass Transition Temperature

The temperature below which elastomers exhibit brittle, glass-like behavior.

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

DSF

Definition(s)


DSF

Factor to account for a certain safety margin between the maximum allowable stress and the minimum specified yield strength of the material.

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

Buffered Components

Definition(s)


Buffered Components

All primary load carrying components with the exception of the limiting component in load limiting designs (reference Annex E).

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

Average Limit Load

Average Limit Load

Definition(s)


Average Limit Load

The numerical average of primary load which causes the limiting component to release the primary load in load limiting designs (reference Annex E). Source:API SPECIFICATION 7K, Drilling and Well Servicing Equipment, Sixth Edition, December 2015. Global Standards
Anistropic Material

Anistropic Material

Definition(s)


Anistropic Material

A material for which properties vary with changes in test direction relative to an initial datum.

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

TWIC

Definition(s)


TWIC

Transportation Worker Identification Credential. Source:API RP T-1, Creating Orientation Programs for Personnel Going Offshore, Fifth Edition, November 2016. Global Standards
MARSEC

MARSEC

Definition(s)


MARSEC

Maritime security. Source:API RP T-1, Creating Orientation Programs for Personnel Going Offshore, Fifth Edition, November 2016. Global Standards
HUET

HUET

Definition(s)


HUET

Helicopter Underwater Egress Training. Entrenamiento brindado a todo el personal que sea habitualmente transportado en helicópteros sobre el agua, con el propósito de prepararlo para una evacuación de emergencia en caso de un aterrizaje de emergencia, tanto controlada como no controlada, sobre el agua.

Source: Resolución Número 40687 de 18 Jul 2017 Por la cual se establecen los criterios técnicos para proyectos de perforación exploratoria de hidrocarburos costa afuera en Colombia. Columbia Ministerio de Minas y Energia, Regulations

HUET

Helicopter Underwater Egress Training.

Source:API RP T-1, Creating Orientation Programs for Personnel Going Offshore, Fifth Edition, November 2016. Global Standards

HAZCOM

HAZCOM

Definition(s)


HAZCOM

Hazard communication. Source:API RP T-1, Creating Orientation Programs for Personnel Going Offshore, Fifth Edition, November 2016. Global Standards
GHS

GHS

Definition(s)


GHS

Globally Harmonized System of Classification and Labelling of Chemicals. Source:API RP T-1, Creating Orientation Programs for Personnel Going Offshore, Fifth Edition, November 2016. Global Standards
U.S. Outer Continental Shelf

U.S. Outer Continental Shelf

Definition(s)


U.S. Outer Continental Shelf

All submerged lands lying seaward and outside of the area of lands beneath navigable waters, as defined in Section 2 of the Submerged Lands Act (43 U.S.C. 1301), subsoil and seabed of which appertain to the United States and are subject to its jurisdiction and control. Source:API RP T-1, Creating Orientation Programs for Personnel Going Offshore, Fifth Edition, November 2016. Global Standards
Shorebase

Shorebase

Definition(s)


Shorebase

The place an employee reports to before being transported to the offshore facility.

Source:API RP T-1, Creating Orientation Programs for Personnel Going Offshore, Fifth Edition, November 2016. Global Standards
Orientation

Orientation

Definition(s)


Orientation

A program of introduction for newcomers.

Source:API RP T-1, Creating Orientation Programs for Personnel Going Offshore, Fifth Edition, November 2016. Global Standards
Offshore Facility

Offshore Facility

Definition(s)


Offshore Facility

Place of work offshore in the outer continental shelf or international waters.

Source:API RP T-1, Creating Orientation Programs for Personnel Going Offshore, Fifth Edition, November 2016. Global Standards