Diverter Housing

Diverter Housing

Definition(s)

Diverter Housing

A permanent installation under the rotary table which houses the diverter unit. Source: API RP 64, Recommended Practice for Diverter Systems Equipment and Operations, Second Edition, November 2001 (March 1, 2007). Global Standards  
Diverter Control System

Diverter Control System

Definition(s)

Diverter Control System

The assemblage of pumps, accumulators, manifolds, control panels, valves, lines, etc., used to operate the diverter system. Source: API RP 64, Recommended Practice for Diverter Systems Equipment and Operations, Second Edition, November 2001 (March 1, 2007). Global Standards  
Differential Pressure-Set Valve

Differential Pressure-Set Valve

Definition(s)

Differential Pressure-Set Valve

A valve that is operated when its actuator senses a change in pressure of a pre-set limit. Source: API RP 64, Recommended Practice for Diverter Systems Equipment and Operations, Second Edition, November 2001 (March 1, 2007). Global Standards  
Control Function

Control Function

Definition(s)

Control Function

1) The control system circuit (hydraulic, pneumatic, electrical, mechanical, or a combination thereof) used to operate the position selection of a diverter unit, BOP, valve, or regulator. Examples: diverter “close” function, starboard vent valve “open” function. 2) Each position of a diverter unit, BOP, or valve and each regulator assignment that is operated by the control system. Source: API RP 64, Recommended Practice for Diverter Systems Equipment and Operations, Second Edition, November 2001 (March 1, 2007). Global Standards  
Conductor Casing or Conductor Pipe (Floating Installations)

Conductor Casing or Conductor Pipe (Floating Installations)

Definition(s)

Conductor Casing or Conductor Pipe (Floating Installations)

The first string of pipe installed below the structural casing on which the wellhead and BOP equipment are installed. Source: API RP 64, Recommended Practice for Diverter Systems Equipment and Operations, Second Edition, November 2001 (March 1, 2007). Global Standards  
Conductor Casing or Conductor Pipe (Onshore and Bottom-Supported Offshore Installations)

Conductor Casing or Conductor Pipe (Onshore and Bottom-Supported Offshore Installations)

Definition(s)

Conductor Casing or Conductor Pipe (Onshore and Bottom-Supported Offshore Installations)

A relatively short string of large diameter pipe that is set to keep the top of the hole open and provide a means of returning the upflowing drilling fluid from the wellbore to the surface drilling fluid system until the first casing string is set in the well. Source: API RP 64, Recommended Practice for Diverter Systems Equipment and Operations, Second Edition, November 2001 (March 1, 2007). Global Standards  
Cleanout

Cleanout

Definition(s)

Cleanout

A point in the flow line piping where access to the internal area of the pipe can be achieved to remove accumulated debris and drill cuttings. Source: API RP 64, Recommended Practice for Diverter Systems Equipment and Operations, Second Edition, November 2001 (March 1, 2007). Global Standards
Bottom-Supported Drilling Vessels

Bottom-Supported Drilling Vessels

Definition(s)

Bottom-Supported Drilling Vessels

Drilling vessels which float to the desired drilling location and are either ballasted or jacked-up so that the vessel is supported by the soil on the bottom while in the drilling mode. Rigs of this type include platforms, submersibles, swamp barges, and jack-up drilling rigs. Source: API RP 64, Recommended Practice for Diverter Systems Equipment and Operations, Second Edition, November 2001 (March 1, 2007). Global Standards  
Bottoms-Up Gas

Bottoms-Up Gas

Definition(s)

Bottoms-Up Gas

Gas that has risen to the surface from previously drilled gas-bearing formations. Source: API RP 64, Recommended Practice for Diverter Systems Equipment and Operations, Second Edition, November 2001 (March 1, 2007). Global Standards  
Bottom-Hole Assembly

Bottom-Hole Assembly

Definition(s)

Bottom-Hole Assembly

That part of the drill string located directly above the drill bit. The components primarily include drill collars and other specialty tools such as stabilizers, reamers, drilling jars, bumper subs, heavy weight drill pipe, etc. Source: API RP 64, Recommended Practice for Diverter Systems Equipment and Operations, Second Edition, November 2001 (March 1, 2007). Global Standards  
Blooey Line

Blooey Line

Definition(s)

Blooey Line

The flow line in air or gas drilling operations. Source: API RP 64, Recommended Practice for Diverter Systems Equipment and Operations, Second Edition, November 2001 (March 1, 2007). Global Standards
Ball Valve

Ball Valve

Definition(s)

Ball Valve

A valve that employs a rotating ball to open or close the flow passage. Source: API RP 64, Recommended Practice for Diverter Systems Equipment and Operations, Second Edition, November 2001 (March 1, 2007). Global Standards  

Ball Valve

ball-shaped valve with conduit port and 90 degree rotation. Normally full port with minor pressure loss. Source: IADC UBO / MPD Glossary, December 2011. Global Standards
Annular Sealing Device

Annular Sealing Device

Definition(s)

Annular Sealing Device

Generally, a torus-shaped steel housing containing an annular packing element which facilitates closure of the annulus by constricting to seal on the pipe or kelly in the wellbore. Some annular sealing devices also facilitate shutoff of the open hole. Source: API RP 64, Recommended Practice for Diverter Systems Equipment and Operations, Second Edition, November 2001 (March 1, 2007). Global Standards      
Annular Packing Element

Annular Packing Element

Definition(s)

Annular Packing Element

A doughnut shaped, rubber/elastomer element that effects a seal in an annular preventer or diverter. The annular packing element is displaced toward the bore center by the upward movement of an annular piston. Source: API RP 64, Recommended Practice for Diverter Systems Equipment and Operations, Second Edition, November 2001 (March 1, 2007). Global Standards      
Air/Gas Drilling

Air/Gas Drilling

Definition(s)

Air/Gas Drilling

Refer to Aerated Fluid, 6.3 and 6.3.3. Source: API RP 64, Recommended Practice for Diverter Systems Equipment and Operations, Second Edition, November 2001 (March 1, 2007). Global Standards  
Aerated Fluid

Aerated Fluid

Definition(s)

Aerated Fluid

Drilling fluid injected with air or gas in varying amounts for the purpose of reducing hydrostatic head. Source: API RP 64, Recommended Practice for Diverter Systems Equipment and Operations, Second Edition, November 2001 (March 1, 2007). Global Standards  
Accumulator system

Accumulator system

Definition(s)

Accumulator System

Pore pressure in excess of that pressure resulting from the hydrostatic pressure exerted by a vertical column of water with salinity normal for the geographic area. Source: API RP 64, Recommended Practice for Diverter Systems Equipment and Operations, Second Edition, November 2001 (March 1, 2007). Global Standards
Energy Structure

Energy Structure

Definition(s)

Energy Structure

In this article “energy structure” means a fixed or floating structure or machine, other than a vessel, which is, or is to be, or has been, used for producing energy from water or wind. Source: The Health and Safety at Work etc. Act 1974 (Application outside Great Britain) Order 2001, UK S.I. 2013/214, 2013. Regulations
Mine

Mine

Definition(s)

Mine

In this article “mine” has the same meaning as in the Mines and Quarries Act 1954(1) (“the 1954 Act”). Source: The Health and Safety at Work etc. Act 1974 (Application outside Great Britain) Order 2001, UK S.I. 2013/214, 2013. Regulations  

Mine

“Mine” means any excavation for the purpose of searching for or obtaining mineral oils and includes an oil-well. Source: The Oilfields (Regulation and Development) Act, 1948 (53 of 1948), India, 8th September 1948, as amended as of May 2013. Legislation  

Mine

In these regulations, the term mine means— (a) a metalliferous mine; or (b) an opencast coal mine; or (c) an underground coal mine. Source: Health and Safety in Employment (Mining Administration) Regulations 1996, SR 1996/220, New Zealand, as of January 2011. Regulations
Territorial Sea

Territorial Sea

Definition(s)

Territorial Sea

“Territorial sea” means the territorial sea adjacent to Great Britain and “within the territorial sea” includes on, over and under it. Source: The Health and Safety at Work etc. Act 1974 (Application outside Great Britain) Order 2001, UK S.I. 2013/214, 2013. Regulations  

Territorial Sea

Territorial sea means territorial sea as defined by Section 2 of Part II of the United Nations Convention on the Law of the Sea. Source: IMO Resolution MSC.255(84), Code of the International Standards and Recommended Practices for a Safety Investigation into a Marine Casualty or Marine Incident (Casualty Investigation Code), 16 May 2008, International Maritime Organization. Regulatory Guidance
Supplementary Unit

Supplementary Unit

Definition(s)

Supplementary Unit

“Supplementary unit” means a fixed or floating structure, other than a vessel, for providing energy, information or substances to an offshore installation. Source: The Health and Safety at Work etc. Act 1974 (Application outside Great Britain) Order 2001, UK S.I. 2013/214, 2013. Regulations
The Prescribed Provisions Of The 1974 Act

The Prescribed Provisions Of The 1974 Act

Definition(s)

The Prescribed Provisions Of The 1974 Act

“The prescribed provisions of the 1974 Act” means sections 1 to 59 and 80 to 82 of the 1974 Act. Source: The Health and Safety at Work etc. Act 1974 (Application outside Great Britain) Order 2001, UK S.I. 2013/214, 2013. Regulations
Gas Importation And Storage Zone

Gas Importation And Storage Zone

Definition(s)

Gas Importation And Storage Zone

“Gas importation and storage zone” has the meaning given by section 1(5) of the Energy Act 2008(3) and “within a gas importation and storage zone” includes over and under it. Source: The Health and Safety at Work etc. Act 1974 (Application outside Great Britain) Order 2001, UK S.I. 2013/214, 2013. Regulations
Designated Area

Designated Area

Definition(s)

Designated Area

“Designated area” means any area designated by order under section 1(7) of the Continental Shelf Act 1964(1) and “within a designated area” includes over and under it. Source: The Health and Safety at Work etc. Act 1974 (Application outside Great Britain) Order 2001, UK S.I. 2013/214, 2013. Regulations  
The 2005 Regulations

The 2005 Regulations

Definition(s)

The 2005 Regulations

In SI 1989/971, regulation 2(1) (interpretation) after the definition of “the 1995 Regulations” insert ““the 2005 Regulations” means the Offshore Installations (Safety Case) Regulations 2005(2). Source: The Offshore Installations (Safety Case) Regulations 2005, UK S.I. 2005/3117, 2005. Regulations  
The Parties

The Parties

Definition(s)

The Parties

“The parties” means the appellant and the Executive. Source: The Offshore Installations (Safety Case) Regulations 2005, UK S.I. 2005/3117, 2005. Regulations
Hearing

Hearing

Definition(s)

Hearing

“Hearing” means a hearing to which Part 2 of this Schedule applies. Source: The Offshore Installations (Safety Case) Regulations 2005, UK S.I. 2005/3117, 2005. Regulations
Appointed Person

Appointed Person

Definition(s)

Appointed Person

“Appointed person” means a person appointed in accordance with paragraph 2. Source: The Offshore Installations (Safety Case) Regulations 2005, UK S.I. 2005/3117, 2005. Regulations
Appellant

Appellant

Definition(s)

Appellant

“Appellant” means a person who has brought an appeal. Source: The Offshore Installations (Safety Case) Regulations 2005, UK S.I. 2005/3117, 2005. Regulations
Audit Report

Audit Report

Definition(s)

Audit Report

In this regulation, “audit report” means a report made pursuant to the arrangements referred to in regulation 12(1)(b). Source: The Offshore Installations (Safety Case) Regulations 2005, UK S.I. 2005/3117, 2005. Regulations