Load Ratings

Load Ratings

Definition(s)

Load Ratings

Crane ratings in pounds (kilograms) established by the manufacturer. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Seventh Edition, December 2014. Global Standards Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Sixth Edition, May 2007. Global Standards
Load Line

Load Line

Definition(s)

Load Line

The main hoist rope. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Seventh Edition, December 2014. Global Standards  

Load Line (also known as Hoist Line)

In lifting crane service it refers to the main hoist rope. The secondary hoist rope is referred to as a whip line or auxiliary line. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Sixth Edition, May 2007. Global Standards
King Post

King Post

Definition(s)

King Post

A fixed tubular member that acts as a centerline of rotation for the revolving upper structure and as the connective member to the platform. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Seventh Edition, December 2014. Global Standards

King Post

A tubular member that acts as the centerline of rotation and as the connective member to the platform. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Sixth Edition, May 2007. Global Standards  
King-Pin

King-Pin

Definition(s)

King-Pin

Vertical pin or shaft that acts as a rotation-centering device and connects the revolving upper-structure and base mounting. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Seventh Edition, December 2014. Global Standards Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Sixth Edition, May 2007. Global Standards  
Jib

Jib

Definition(s)

Jib (also known as Tip Extension)

An extension attached to the boom point to provide added boom length for lifting specified loads. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Sixth Edition, May 2007. Global Standards Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Seventh Edition, December 2014. Global Standards
Hook Rollers

Hook Rollers

Definition(s)

Hook Rollers

Rollers that prevent the lifting of the revolving upper-structure from the roller path. Hook rollers are a means to connect the upper-structure to the foundation or pedestal. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Sixth Edition, May 2007. Global Standards  

Hook Rollers

A means to connect the upper structure to the foundation or pedestal by using rollers to prevent the revolving upper structure from toppling. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Seventh Edition, December 2014. Global Standards
Hook Block

Hook Block

Definition(s)

Hook Block

Block with a hook attached used in lifting service. It may have a single sheave for double or triple line or multiple sheaves for four or more parts of line. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Sixth Edition, May 2007. Global Standards  

Hook Block

Block with a hook attached used in lifting service. NOTE A hook block can have a single sheave for double or triple line or multiple sheaves for four or more parts of line. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Seventh Edition, December 2014. Global Standards
Hoist Rope

Hoist Rope

Definition(s)

Hoist Rope

Wire rope involved in the process of lifting. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Sixth Edition, May 2007. Global Standards Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Seventh Edition, December 2014. Global Standards  
Hoisting

Hoisting

Definition(s)

Hoisting

The process of lifting. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Sixth Edition, May 2007. Global Standards Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Seventh Edition, December 2014. Global Standards  
Gantry

Gantry

Definition(s)

Gantry (also known as A-Frame or Mast)

A structural frame, extending above the upper-structure to which the boom support ropes are reeved. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Sixth Edition, May 2007. Global Standards  

Gantry (also known as A-Frame or Mast)

A structural frame, extending above the machinery deck or upper-structure to which the boom support ropes are reeved. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Seventh Edition, December 2014. Global Standards  
Fixed Platform

Fixed Platform

Definition(s)

Fixed Platform

A bottom supported, stationary structure without significant movement in response to waves and currents in operating conditions. Examples are fixed platforms with jacket and pile supports. Jack-up rigs, and submersible bottomsupported rigs are similar in that they are effectively stationary. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Sixth Edition, May 2007. Global Standards Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Seventh Edition, December 2014. Global Standards  

Fixed Platform

A platform extending above and supported by the sea bed by means of piling, spread footings or other means with the intended purpose of remaining stationary over an extended period. Source: API RP 2FB, Recommended Practice for the Design of Offshore Facilities Against Fire and Blast Loading, First Edition, April 2006. Global Standards
Designated

Designated

Definition(s)

Designated

Selected or assigned by the employer or the employer’s representative as being qualified to perform specific duties. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Sixth Edition, May 2007. Global Standards Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Seventh Edition, December 2014. Global Standards
Crane Owner

Crane Owner

Definition(s)

Crane Owner

The individual, partnership, firm, or corporation who owns the crane. NOTE For the purposes of this document, a crane owner can be the lease operator (i.e. oil company), drilling or well service contractor, vessel owner, or company that provides temporary crane service. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Seventh Edition, December 2014. Global Standards

Crane Owner

The individual, partnership, firm, or corporation who owns the crane. In this RP, a Crane Owner can be either the lease operator (i.e., oil company), drilling or well service contractor, or company that provides temporary crane service. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Sixth Edition, May 2007. Global Standards
Counterweight

Counterweight

Definition(s)

Counterweight

Weight used to supplement the weight of the machine in providing stability for lifting working loads and usually attached to the rear of the revolving upper-structure. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Sixth Edition, May 2007. Global Standards Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Seventh Edition, December 2014. Global Standards
Clutch

Clutch

Definition(s)

Clutch

A means for engagement or disengagement of power. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Sixth Edition, May 2007. Global Standards Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Seventh Edition, December 2014. Global Standards
Cab

Cab

Definition(s)

Cab

An enclosure for the operator and the machine operation controls. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Sixth Edition, May 2007. Global Standards Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Seventh Edition, December 2014. Global Standards  

CAB

Body that performs conformity assessment services and that can be the object of accreditation. NOTE Whenever the word “CAB” is used in the text, it applies to both the “applicant and accredited CABs” unless otherwise specified. Source: ISO/IEC 17011:2004, Conformity assessment – General requirements for accreditation bodies accrediting conformity assessment bodies. Global Standards    
Bridle Sling

Bridle Sling

Definition(s)

Bridle Sling

A multi-leg wire or synthetic rope sling attached to a single point ring. The legs of the sling are spread to divide and equalize the load. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Sixth Edition, May 2007. Global Standards Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Seventh Edition, December 2014. Global Standards  

Bridle Sling

A multi-leg sling attached to a single point ring. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Seventh Edition, December 2014. Global Standards
Brake

Brake

Definition(s)

Brake

A device used for retarding or stopping motion or holding. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Sixth Edition, May 2007. Global Standards  

Brake

A device used for holding, retarding, or stopping motion. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Seventh Edition, December 2014. Global Standards
Boom Stop

Boom Stop

Definition(s)

Boom Stop

A device used to limit the angle of the boom at the highest recommended position. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Sixth Edition, May 2007. Global Standards  

Boom Stop

A device used to prevent the boom from falling backwards in the case of high winds or a sudden release of load. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Seventh Edition, December 2014. Global Standards
Boom Length

Boom Length

Definition(s)

Boom Length

The straight-line distance from the centerline of boom foot-pin to the centerline of the boom-point load hoist sheave pin, measured along the longitudinal axis of the boom. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Sixth Edition, May 2007. Global Standards Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Seventh Edition, December 2014. Global Standards
Boom Hoist

Boom Hoist

Definition(s)

Boom Hoist

The hoist mechanism responsible for raising and lowering the boom. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Sixth Edition, May 2007. Global Standards Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Seventh Edition, December 2014. Global Standards
Boom Angle Indicator

Boom Angle Indicator

Definition(s)

Boom Angle Indicator

An accessory which measures the angle of the boom above horizontal. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Sixth Edition, May 2007. Global Standards Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Seventh Edition, December 2014. Global Standards
Boom

Boom

Definition(s)

Boom

A member hinged to the revolving upper-structure and used for supporting the hoist tackle. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Sixth Edition, May 2007. Global Standards Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Seventh Edition, December 2014. Global Standards
Bearing Raceway

Bearing Raceway

Definition(s)

Bearing Raceway

The surface of the bearing rings which contact the rolling element (balls or rollers) of the swing-bearing assembly. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Sixth Edition, May 2007. Global Standards Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Seventh Edition, December 2014. Global Standards  
Authorized Surveyor

Authorized Surveyor

Definition(s)

Authorized Surveyor

See the definition for Qualified Inspector. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Sixth Edition, May 2007. Global Standards  

Authorized Surveyor

A person who works for a third-party certifying authority who is hired to inspect the crane. Source: API RP 2D, Operation and Maintenance of Offshore Cranes, Seventh Edition, December 2014. Global Standards
Work String

Work String

Definition(s)

Work String

Tubular conduit used to convey well test tools downhole and provide a flow path for reservoir fluids to surface.

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

Work String

The drill pipe or tubing used in well workover operations or abandonment operations to perform specific downhole tasks such as running squeeze cementing tools and stimulation packers, as well as performing stimulation, testing, cementing, wellbore cleanout, etc. operations. Source: API BULLETIN E3, Environmental Guidance Document: Well Abandonment and Inactive Well Practices for U.S. Exploration and Production Operations, First Edition, January 1993 (Reaffirmed June 2000). Global Standards  

Work String

Collective term for jointed pipe, coiled tubing and wireline, BHA excluded. Source: NORSOK D-002, Well intervention equipment, Rev. 2, June 2013. Global Standards
Wireline Operations

Wireline Operations

Definition(s)

Wireline Operations

Operations performed in a wellbore using tools which are run and pulled on small diameter slick, braided, or electric wirelines. Source: API BULLETIN E3, Environmental Guidance Document: Well Abandonment and Inactive Well Practices for U.S. Exploration and Production Operations, First Edition, January 1993 (Reaffirmed June 2000). Global Standards
Wellbore

Wellbore

Definition(s)

Wellbore

The interior surface of the cased or openhole through which drilling, production, or injection operations are conducted. Source: API BULLETIN E3, Environmental Guidance Document: Well Abandonment and Inactive Well Practices for U.S. Exploration and Production Operations, First Edition, January 1993 (Reaffirmed June 2000). Global Standards
Underground Source of Drinking Water

Underground Source of Drinking Water

Definition(s)

Underground Source of Drinking Water (USDW)

An aquifer or its portion which supplies any public water supply system or currently supplies drinking water for human consumption or which contains sufficient water to supply a public water system or has a total dissolved solids (TDS) concentration of less than 10,000 mg/l. The EPA may exempt an aquifer if it will not serve as a source of drinking water in the future because it is economically or technically impractical to recover the water or to render it fit for human consumption or because the aquifer produces or is expected to commercially produce minerals, hydrocarbons, or geothermal energy. While the EPA defines a USDW as containing less than 10,000 mg/l TDS, certain states, such as California and Texas, have adopted a producing and injection well surface pipe protection standard for fresh water aquifers that contain less than 3,000 mg/l TDS. Source: API BULLETIN E3, Environmental Guidance Document: Well Abandonment and Inactive Well Practices for U.S. Exploration and Production Operations, First Edition, January 1993 (Reaffirmed June 2000). Global Standards  

Underground Source of Drinking Water (USDW)

"Underground Source of Drinking Water (USDW)" means an aquifer or its portion which: (A) Supplies any public water system; or (B) Contains a sufficient quantity of ground water to supply a public water system; and (i) Currently supplies drinking water for human consumption; or (ii) Contains fewer than 10,000 mg/l total dissolved solids; and (C) Is not an exempted aquifer. Source: Corporation Commission, Oil and Gas Conservation, Oklahoma Administrative Code 165:10, February 2013. Regulations  

Underground Source of Drinking Water (USDW)

“Underground source of drinking water” and “USDW” mean an aquifer or portion of an aquifer that supplies any public water system or that contains a sufficient quantity of groundwater to supply a public water system, and currently supplies drinking water for human consumption, or that contains fewer than ten thousand milligrams per liter total dissolved solids and is not an exempted aquifer. Source: Division of Mineral Resources Management - Oil and Gas, Ohio Administrative Code, Chapter 1501:9, January 2012. Regulations  

Underground Source of Drinking Water (USDW)

“Underground source of drinking water” means an aquifer or its portion which: (1) Supplies any public water system, or (2) Contains a sufficient quantity of ground water to supply a public water system, and (a) Currently supplies drinking water for human consumption, or (b) Contains fewer than ten thousand mg/L total dissolved solids, and (3) Is not an exempted aquifer. Source: Division of Mineral Resources Management - Oil and Gas, Ohio Administrative Code, Chapter 1501:9, January 2012. Regulations  

Underground Source of Drinking Water (USDW)

“Underground source of drinking water” means an aquifer that supplies water for human consumption or that contains ground water having a TDS concentration of 10,000 mg/l or less and that is not an exempted aquifer. Source: Oil and Gas, New Mexico Administrative Code Title 19, Chapter 15, January 2013. Regulations  

Underground Source of Drinking Water (USDW)

An aquifer or its portion which is not an exempt aquifer as defined in 40 Code of Federal Regulations §146.4 and which: (A) supplies any public water system; or (B) contains a sufficient quantity of ground water to supply a public water system; and (i) currently supplies drinking water for human consumption; or (ii) contains fewer than 10,000 milligrams per liter (mg/l) total dissolved solids. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. Regulations
Stage Cementing Tool

Stage Cementing Tool

Definition(s)

Stage Cementing Tool

A tool installed in the casing string through which the stage cementing operations are conducted. The tool is placed in the casing string as the casing is being installed into the borehole. After the primary cement job has been completed, and the slurry has hardened, ports in the tool are opened so stage-cementing operations can proceed. Source: API BULLETIN E3, Environmental Guidance Document: Well Abandonment and Inactive Well Practices for U.S. Exploration and Production Operations, First Edition, January 1993 (Reaffirmed June 2000). Global Standards