ES

ES

Definition(s)

ES

Enhanced Scantlings. Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 1, Regulations, June 2013, Lloyd’s Register, Global Standards
SEA (HSS-n)

SEA (HSS-n)

Definition(s)

SEA (HSS-n)

Ship Event Analysis (Hull Surveillance Systems). Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 1, Regulations, June 2013, Lloyd’s Register, Global Standards
SERS

SERS

Definition(s)

SERS

Ship Emergency Response Service. Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 1, Regulations, June 2013, Lloyd’s Register, Global Standards
MCM

MCM

Definition(s)

MCM

Machinery Condition Monitoring. Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 1, Regulations, June 2013, Lloyd’s Register, Global Standards
MCBM

MCBM

Definition(s)

MCBM

Machinery Condition Based Maintenance. Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 1, Regulations, June 2013, Lloyd’s Register, Global Standards
MPMS

MPMS

Definition(s)

MPMS

Machinery Planned Maintenance Scheme. Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 1, Regulations, June 2013, Lloyd’s Register, Global Standards
BWMP

BWMP

Definition(s)

BWMP

Ballast Water Management Plan. Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 1, Regulations, June 2013, Lloyd’s Register, Global Standards
Critical Areas

Critical Areas

Definition(s)

Critical Areas

Part(s) of a product that require specific operational control in service life; includes sealing surfaces and locations of high stress and strain under static and/or cycling loads. Source: API Specification 16A, Specification for Drill-through Equipment, Fourth Edition, April 2017. Global Standards

Critical Areas

Critical areas are locations vulnerable to substantial corrosion, buckling and/or fatigue cracking. Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 1, Regulations, June 2013, Lloyd’s Register, Global Standards
Ballast Tank

Ballast Tank

Definition(s)

Ballast Tank

A ballast tank is a tank which is used solely for salt-water ballast. A space which is used for both the storage of liquids and salt-water ballast will be treated as a salt-water ballast tank when substantial corrosion has been found in that space. Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 1, Regulations, June 2013, Lloyd’s Register, Global Standards
Overall Survey

Overall Survey

Definition(s)

Overall Survey

An Overall Survey is a survey intended to report on the overall condition of the hull structure and to determine the extent of additional Close-up Surveys as necessary. Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 1, Regulations, June 2013, Lloyd’s Register, Global Standards
Close-up Survey

Close-up Survey

Definition(s)

Close-up Survey

A Close-up Survey is a survey where the details of structural components are within the close visual inspection range of the Surveyor, i.e., normally within reach of hand. Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 1, Regulations, June 2013, Lloyd’s Register, Global Standards
Representative Spaces

Representative Spaces

Definition(s)

Representative Spaces

Representative spaces are those which are expected to reflect the condition of other spaces of similar type and service and with similar corrosion prevention systems. When selecting representative spaces, account should be taken of the service and repair history on board and identifiable Critical Structural Areas. Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 1, Regulations, June 2013, Lloyd’s Register, Global Standards
Substantial Corrosion

Substantial Corrosion

Definition(s)

Substantial Corrosion

Substantial corrosion is wastage of individual plates and stiffeners in excess of 75 per cent of allowable margins, but within acceptable limits. Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 1, Regulations, June 2013, Lloyd’s Register, Global Standards  

Substantial Corrosion

Extent of corrosion such that assessment of corrosion pattern indicates wastage in excess of 75% of allowable margins, but within acceptable limits Source: Rules for Classification – Offshore units, DNVGL-OU-0101, Offshore drilling and support units, DNV GL, July 2015. Global Standards
Corrosion Preventing System

Corrosion Preventing System

Definition(s)

Corrosion Preventing System

A corrosion preventing system is normally a full hard protective coating. This is usually to be an epoxy coating or equivalent. For other systems, with the exception of soft and semi-hard coatings, see Pt 1, Ch 3,1.5.16 of the Rules for Ships. Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 1, Regulations, June 2013, Lloyd’s Register, Global Standards
Independent Double Bottom Tank

Independent Double Bottom Tank

Definition(s)

Independent Double Bottom Tank

An independent double bottom tank is a double bottom tank which is separate from topside tanks, side tanks or deep tanks. Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 1, Regulations, June 2013, Lloyd’s Register, Global Standards
Prompt and Thorough Repair

Prompt and Thorough Repair

Definition(s)

Prompt and Thorough Repair

A prompt and thorough repair is a permanent repair completed at the time of survey to the satisfaction of the Surveyor, thereby removing the need for the imposition of any associated condition of class or recommendation. Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 1, Regulations, June 2013, Lloyd’s Register, Global Standards
Critical Structural Areas

Critical Structural Areas

Definition(s)

Critical Structural Areas

Critical structural areas are locations which have been identified from calculations to require monitoring or from the service history of the subject unit or from similar units, if applicable, to be sensitive to cracking, buckling or corrosion which would impair the structural integrity of the unit. Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 1, Regulations, June 2013, Lloyd’s Register, Global Standards  

Critical Structural Areas

Areas that have been identified from calculations to require monitoring or from the service history of the subject vessel or from similar or sister vessels to be sensitive to cracking, buckling or corrosion which would impair the structural integrity of the vessel. Source: Rules for Classification – Offshore units, DNVGL-OU-0101, Offshore drilling and support units, DNV GL, July 2015. Global Standards
Accommodation Unit

Accommodation Unit

Definition(s)

Accommodation Unit

Accommodation unit is a support unit whose primary function is to provide accommodation for more than twelve offshore personnel who are not crew members or passengers. Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 1, Regulations, June 2013, Lloyd’s Register, Global Standards
Support Units

Support Units

Definition(s)

Support Units

Support units are units whose primary function is to support offshore installations. They are normally engaged in one or more of the following functions: crane operations, fire-fighting, diving operations, maintenance, construction, pipelaying and accommodation. Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 1, Regulations, June 2013, Lloyd’s Register, Global Standards
Column-stabilised Units

Column-stabilised Units

Definition(s)

Column-stabilised Units

Semi-submersible or column-stabilised units have working platforms supported on widely spaced buoyant columns. The columns are normally attached to buoyant lower hulls or pontoons. These units are normally floating types but can be designed to rest on the sea bed, see also 2.2.3. Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 1, Regulations, June 2013, Lloyd’s Register, Global Standards  

Column-stabilised Units

A column-stabilised unit is a unit with a working platform supported on widely spaced buoyant columns. The columns are normally attached to buoyant lower hulls or pontoons. These units are normally floating types but can be designed to rest on the sea bed. Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 3, Functional Unit Types and Special Features, June 2013, Lloyd’s Register, Global Standards
Semi-submersible or Column-stabilised Units

Semi-submersible or Column-stabilised Units

Definition(s)

Semi-submersible or Column-stabilised Units

Semi-submersible or column-stabilised units have working platforms supported on widely spaced buoyant columns. The columns are normally attached to buoyant lower hulls or pontoons. These units are normally floating types but can be designed to rest on the sea bed, see also 2.2.3. Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 1, Regulations, June 2013, Lloyd’s Register, Global Standards
Barge Units

Barge Units

Definition(s)

Barge Units

Barge units are surface type units without primary propelling machinery. Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 1, Regulations, June 2013, Lloyd’s Register, Global Standards
Ship Units

Ship Units

Definition(s)

Ship Units

Ship units are self-propelled surface type units of shipshaped single or multiple hull form. Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 1, Regulations, June 2013, Lloyd’s Register, Global Standards
Surface Type Units

Surface Type Units

Definition(s)

Surface Type Units

Surface type units are units with a ship or barge type displacement hull of single or multiple hull construction intended for operation in the floating condition. Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 1, Regulations, June 2013, Lloyd’s Register, Global Standards
Self-propelled

Self-propelled

Definition(s)

Self-propelled

Self-propelled means that the unit is designed for unassisted sea passages and is fitted with propelling machinery in accordance with LR Rules. Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 1, Regulations, June 2013, Lloyd’s Register, Global Standards
National Authority

National Authority

Definition(s)

National Authority

National Authority is the Marine Authority in the country in which a unit is registered. Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 1, Regulations, June 2013, Lloyd’s Register, Global Standards
Coastal State Authority

Coastal State Authority

Definition(s)

Coastal State Authority

Coastal State Authority is the Authority responsible for the safety standards of units operating in or adjacent to their territorial waters. Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 1, Regulations, June 2013, Lloyd’s Register, Global Standards
Mobile

Mobile

Definition(s)

Mobile

Mobile indicates that the unit is designed to be moved from one operating site to another. Source: Rules and Regulations for the Classification of Mobile Offshore Units, Part 1, Regulations, June 2013, Lloyd’s Register, Global Standards
Training and Qualifications Committee

Training and Qualifications Committee

Definition(s)

 Training and Qualifications Committee

the committee formed voluntarily by the Canadian Association of Petroleum Producers, the Canadian Association of Oilwell Drilling Contractors, the Canada-Newfoundland Offshore Petroleum Board and the Canada-Nova Scotia Offshore Petroleum Board to develop and maintain the Atlantic Canada Offshore Petroleum Industry: Standard Practice for the Training and Qualification of Personnel. Source: Atlantic Canada Offshore Petroleum Industry, Standard Practice for the Training and Qualifications of Personnel, 2013, Canadian Association of Petroleum Producers, Global Standards
Total Installed Power

Total Installed Power

Definition(s)

Total Installed Power

the total electrical power generated on an installation for supplying all services necessary for maintaining the installation in normal operational and habitable conditions. Source: Atlantic Canada Offshore Petroleum Industry, Standard Practice for the Training and Qualifications of Personnel, 2013, Canadian Association of Petroleum Producers, Global Standards