Foundation Fixity

Foundation Fixity

Definition(s)

Foundation Fixity

Also called spudcan-soil rotational stiffness, is the rotational restraint offered by the soil supporting the foundation.

Source: ABS Guidance Notes on Geotechnical Performance of Spudcan Foundations, January 2017. Global Standards

Foundation Fixity

Rotational restraint offered by the soil to the spudcan. Source: ISO 19905-1:202, Petroleum and natural gas industries – Site-specific assessment of mobile offshore units – Part 1: Jack-ups. Global Standards
Land Treatment

Land Treatment

Definition(s)

Land Treatment

Land Treatment―a dynamic process involving the controlled application of E and P Waste onto or into the aerobic surface soil horizon in open cells by a commercial land treatment facility, accompanied by continued monitoring and management, to alter the physical, chemical, and biological state of the E and P Waste. Site, soil, climate, and biological activity interact as a system to degrade and immobilize E and P Waste constituents thereby rendering the area suitable for the support of vegetative growth and providing for beneficial future land use or to meet the reuse criteria of §565. Source: Natural Resources, Office of Conservation – General Operations, Louisiana Administrative Code, Title 43, Part XIX, March 2013. Regulations

Land Treatment

LAND TREATMENT shall mean the treatment method by which E&P waste is applied to soils and treated to result in a reduction of hydrocarbon concentration by biodegradation and other natural attenuation processes. Land treatment may be enhanced by tilling, disking, aerating, composting and the addition of nutrients or microbes. Source: Oil and Gas Conservation Commission, Practice and Procedure, Code of Colorado Regulations, 2 CCR 404-1, February 2013. Regulations    
Footprint

Footprint

Definition(s)

Footprint

After a jackup unit is removed from a site, depressions are left in the seabed where the spudcans were located. The soil in way of the footprints has modified physical profiles of the seabed and soil properties.

Source: ABS Guidance Notes on Geotechnical Performance of Spudcan Foundations, January 2017. Global Standards

Footprint

Sea floor depression which remains when a jack-up is removed from a site. Source: ISO 19905-1:202, Petroleum and natural gas industries – Site-specific assessment of mobile offshore units – Part 1: Jack-ups. Global Standards
Fixed Load

Fixed Load

Definition(s)

Fixed Load

Permanent parts of the jack-up, including hull, legs and spudcans, outfit, stationary and moveable-fixed equipment. NOTE Moveable-fixed equipment normally includes the drilling package structure and associated permanently attached equipment. Source: ISO 19905-1:202, Petroleum and natural gas industries – Site-specific assessment of mobile offshore units – Part 1: Jack-ups. Global Standards  
Extreme Storm Event

Extreme Storm Event

Definition(s)

Extreme Storm Event

Extreme combination of wind, wave and current conditions to which the structure can be subjected during its deployment. NOTE This is the metocean event used for ULS storm assessment (see 6.4). Source: ISO 19905-1:202, Petroleum and natural gas industries – Site-specific assessment of mobile offshore units – Part 1: Jack-ups. Global Standards  
Land Application

Land Application

Definition(s)

Land Application

"Land application" is the application of deleterious substances and/or soils contaminated by deleterious substances to the land for the purpose of disposal or land treatment; also known as soil farming. Source: Corporation Commission, Oil and Gas Conservation, Oklahoma Administrative Code 165:10, February 2013. Regulations

Land Application

LAND APPLICATION shall mean the disposal method by which E&P waste is spread upon or sometimes mixed into soils. Source: Oil and Gas Conservation Commission, Practice and Procedure, Code of Colorado Regulations, 2 CCR 404-1, February 2013. Regulations    
Exposure Level

Exposure Level

Definition(s)

Exposure Level

Classification system used to define the requirements for a structure based on consideration of life-safety and of environmental and economic consequences of failure. NOTE 1 An exposure level 1 (L1) jack-up is the most critical and exposure level 3 (L3) the least (see 5.5). NOTE 2 Adapted from ISO 19902:2007, definition 3.18. Source: ISO 19905-1:202, Petroleum and natural gas industries – Site-specific assessment of mobile offshore units – Part 1: Jack-ups. Global Standards Source: ISO 19900:2013, Petroleum and natural gas industries – General requirements for offshore structures. Global Standards
LACT

LACT

Definition(s)

LACT

LACT (“Lease Automated Custody Transfer”  ) shall mean the transfer of produced crude oil or condensate, after processing or treating in the producing operations, from storage vessels or automated transfer facilities to pipelines or any other form of transportation. Source: Oil and Gas Conservation Commission, Practice and Procedure, Code of Colorado Regulations, 2 CCR 404-1, February 2013. Regulations  
Deterministic Analysis

Deterministic Analysis

Definition(s)

Deterministic Analysis

Analysis in which the response is determined from a single combination of actions. Source: ISO 19905-1:202, Petroleum and natural gas industries – Site-specific assessment of mobile offshore units – Part 1: Jack-ups. Global Standards  
Jail

Jail

Definition(s)

Jail

JAIL shall mean those structures where the personal liberties of occupants are restrained, including but not limited to, mental hospitals, mental sanitariums, prisons, reformatories. Source: Oil and Gas Conservation Commission, Practice and Procedure, Code of Colorado Regulations, 2 CCR 404-1, February 2013. Regulations  
Intervenor

Intervenor

Definition(s)

Intervenor

INTERVENOR shall mean a local government, or the Colorado Department of Public Health and Environment intervening solely to raise environmental or public health, safety and welfare concerns, or the Colorado Division of Wildlife intervening solely to raise wildlife resource concerns, in which case the intervention shall be granted of right, or a person who has timely filed an intervention in a relevant proceeding and has demonstrated to the satisfaction of the Commission that the intervention will serve the public interest, in which case the person may be recognized as a permissive intervenor at the Commission's discretion. Source: Oil and Gas Conservation Commission, Practice and Procedure, Code of Colorado Regulations, 2 CCR 404-1, February 2013. Regulations  
DAF

DAF

Definition(s)

DAF

Ratio of a dynamic action effect to the corresponding static action effect. NOTE 1 For a jack-up, the dynamic action effect is best simulated by means of a concentrated or distributed inertial loadset. It is usually not appropriate to factor the static actions to simulate the effects of dynamic actions. NOTE 2 The DAF excluding the mean values, KDAF,SDOF, can typically be obtained from a single degree-of-freedom (SDOF) calculation. In this case, it is defined as the ratio of the amplitude of a dynamic action effect to the amplitude of the corresponding static action effect for periodic excitation of a linear one degree-of-freedom model approximation of jack-up behaviour. NOTE 3 The DAF including the mean values, KDAF,RANDOM, can typically be obtained from a random wave calculation. In this case, it is defined as the ratio of the absolute value of a dynamic action effect to the absolute value of the corresponding static action effect, each including their mean value. NOTE 4 Adapted from ISO 19902:2007, definition 3.16. Source: ISO 19905-1:202, Petroleum and natural gas industries – Site-specific assessment of mobile offshore units – Part 1: Jack-ups. Global Standards  

DAF

Dynamic amplification factor. Source: ISO 19905-1:202, Petroleum and natural gas industries – Site-specific assessment of mobile offshore units – Part 1: Jack-ups. Global Standards  
Dynamic Amplification Factor

Dynamic Amplification Factor

Definition(s)

Dynamic Amplification Factor

Ratio of a dynamic action effect to the corresponding static action effect. NOTE 1 For a jack-up, the dynamic action effect is best simulated by means of a concentrated or distributed inertial loadset. It is usually not appropriate to factor the static actions to simulate the effects of dynamic actions. NOTE 2 The DAF excluding the mean values, KDAF,SDOF, can typically be obtained from a single degree-of-freedom (SDOF) calculation. In this case, it is defined as the ratio of the amplitude of a dynamic action effect to the amplitude of the corresponding static action effect for periodic excitation of a linear one degree-of-freedom model approximation of jack-up behaviour. NOTE 3 The DAF including the mean values, KDAF,RANDOM, can typically be obtained from a random wave calculation. In this case, it is defined as the ratio of the absolute value of a dynamic action effect to the absolute value of the corresponding static action effect, each including their mean value. NOTE 4 Adapted from ISO 19902:2007, definition 3.16. Source: ISO 19905-1:202, Petroleum and natural gas industries – Site-specific assessment of mobile offshore units – Part 1: Jack-ups. Global Standards  
Indian Lands

Indian Lands

Definition(s)

Indian Lands

INDIAN LANDS shall mean those lands located within the exterior boundaries of a defined Indian reservation, including allotted Indian lands, in which the legal, beneficial, or restricted ownership of the underlying oil, gas, or coal bed methane or of the right to explore for and develop the oil, gas, or coal bed methane belongs to or is leased from an Indian tribe. Source: Oil and Gas Conservation Commission, Practice and Procedure, Code of Colorado Regulations, 2 CCR 404-1, February 2013. Regulations  
Consequence Category

Consequence Category

Definition(s)

Consequence Category

classification system for identifying the environmental, economic, and indirect personnel safety consequences of failure of a platform. Source: ISO 19900:2013, Petroleum and natural gas industries – General requirements for offshore structures. Global Standards

Consequence Category

Classification system for identifying the environmental, economic and indirect personnel safety consequences of failure of a jack-up. NOTE 1 Categories for environmental and economic consequences are the following (see 5.3.3): – C1: high environmental or economic consequence; – C2: medium environmental or economic consequence; – C3: low environmental or economic consequence. NOTE 2 Adapted from ISO 19902:2007, definition 3.11. Source: ISO 19905-1:202, Petroleum and natural gas industries – Site-specific assessment of mobile offshore units – Part 1: Jack-ups. Global Standards
Chart Datum

Chart Datum

Definition(s)

Chart Datum

local datum used to fix water depths on a chart or tidal heights over an area NOTE Chart datum is usually an approximation to the level of the lowest astronomical tide. Source: API RP 2MET, Derivation of Metocean Design and Operating Conditions, First Edition, November 2014. Global Standards  

Chart Datum

Local datum used to fix water depths on a chart or tidal heights over an area. NOTE Chart datum is usually an approximation to the level of the lowest astronomical tide.[ISO 19901-1:2005, definition 3.2]. Source: ISO 19905-1:202, Petroleum and natural gas industries – Site-specific assessment of mobile offshore units – Part 1: Jack-ups. Global Standards
Boundary Conditions

Boundary Conditions

Definition(s)

Boundary Conditions

Actions and constraints on a (section of a) structural component (or a group of structural components) by other structural components or by the environment surrounding it. NOTE Boundary conditions can be used to generate reaction forces at locations of restraint. [ISO 19902:2007, definition 3.6]. Source: ISO 19905-1:202, Petroleum and natural gas industries – Site-specific assessment of mobile offshore units – Part 1: Jack-ups. Global Standards  
Backflow

Backflow

Definition(s)

Backflow

Soil flows from bottom of spudcan back into the cavity on the exposed top of the spudcan.

Source: ABS Guidance Notes on Geotechnical Performance of Spudcan Foundations, January 2017. Global Standards

Backflow

Soil that flows from beneath the spudcan around the sides and onto the top. NOTE Backflow is part of backfill (3.7). Source: ISO 19905-1:202, Petroleum and natural gas industries – Site-specific assessment of mobile offshore units – Part 1: Jack-ups. Global Standards
Backfill

Backfill

Definition(s)

Backfill

Soil material used to refill the cavity above the spudcan due to spudcan penetration.

Source: ABS Guidance Notes on Geotechnical Performance of Spudcan Foundations, January 2017. Global Standards

Backfill

Submerged weight of all of the soil that can be present on top of the spudcan. NOTE Backfilling can occur during or after preloading. WBF,o refers to the submerged weight of the backfilling that occurs up to achieving the preload reaction. WBF,A refers to the submerged weight of the backfilling that occurs after the maximum preload has been applied and held. Both WBF,o and WBF,A can comprise backflow and/or infill. For discussion of the effects, see A.9.3.2.1.4. Source: ISO 19905-1:202, Petroleum and natural gas industries – Site-specific assessment of mobile offshore units – Part 1: Jack-ups. Global Standards
Hydraulic Fracturing Treatment

Hydraulic Fracturing Treatment

Definition(s)

Hydraulic Fracturing Treatment

HYDRAULIC FRACTURING TREATMENT shall mean all stages of the treatment of a well by the application of hydraulic fracturing fluid under pressure that is expressly designed to initiate or propagate fractures in a target geologic formation to enhance production of oil and natural gas. Source: Oil and Gas Conservation Commission, Practice and Procedure, Code of Colorado Regulations, 2 CCR 404-1, February 2013. Regulations  

Hydraulic Fracturing Treatment

The treatment of a well by the application of hydraulic fracturing fluid under pressure for the express purpose of initiating or propagating fractures in a target geologic formation to enhance production of oil and/or natural gas. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. Regulations  
Assessment Situation

Assessment Situation

Definition(s)

Assessment Situation

Jack-up configuration together with the environmental loading to be assessed. NOTE 1 For discussion on configuration, see 5.4.1. NOTE 2 The assessment situations are checked against the acceptance criteria of this part of ISO 19905 to demonstrate that the relevant limit states are not exceeded. Source: ISO 19905-1:202, Petroleum and natural gas industries – Site-specific assessment of mobile offshore units – Part 1: Jack-ups. Global Standards  
Accidental Situation

Accidental Situation

Definition(s)

Accidental Situation

Design situation involving exceptional conditions of the structure or its exposure.
  • EXAMPLE Impact, fire, explosion, loss of intended differential pressure).
Source: ISO 19900:2013, Petroleum and natural gas industries – General requirements for offshore structures. Global Standards

Accidental Situation

Exceptional situation of the structure. EXAMPLE Impact; fire; explosion; local failure; loss of intended differential pressure (e.g. buoyancy). Source: ISO 19905-1:202, Petroleum and natural gas industries – Site-specific assessment of mobile offshore units – Part 1: Jack-ups. Global Standards
Abnormal Wave Crest

Abnormal Wave Crest

Definition(s)

Abnormal Wave Crest

Wave crest with probability of typically 10-3 to 10-4 per annum. Source: ISO 19905-1:202, Petroleum and natural gas industries – Site-specific assessment of mobile offshore units – Part 1: Jack-ups. Global Standards
Hydraulic Fracturing Fluid

Hydraulic Fracturing Fluid

Definition(s)

Hydraulic Fracturing Fluid

HYDRAULIC FRACTURING FLUID shall mean the fluid, including the applicable base fluid and all hydraulic fracturing additives, used to perform a hydraulic fracturing treatment. Source: Oil and Gas Conservation Commission, Practice and Procedure, Code of Colorado Regulations, 2 CCR 404-1, February 2013. Regulations  

Hydraulic Fracturing Fluid

The fluid, including the applicable base fluid and all additives, used to perform a particular hydraulic fracturing treatment. Source: Oil and Gas Division, Texas Administrative Code, Title 16, Chapter 3, February 2013. Regulations  
Hydraulic Fracturing Additive

Hydraulic Fracturing Additive

Definition(s)

Hydraulic Fracturing Additive

HYDRAULIC FRACTURING ADDITIVE shall mean any chemical substance or combination of substances, including any chemicals and proppants, that is intentionally added to a base fluid for purposes of preparing a hydraulic fracturing fluid for treatment of a well. Source: Oil and Gas Conservation Commission, Practice and Procedure, Code of Colorado Regulations, 2 CCR 404-1, February 2013. Regulations  
Hospital, Nursing Home, Board and Care Facilities

Hospital, Nursing Home, Board and Care Facilities

Definition(s)

Hospital, Nursing Home, Board and Care Facilities

HOSPITAL, NURSING HOME, BOARD AND CARE FACILITIES shall mean buildings used for the licensed care of more than five (5) in-patients or residents. Source: Oil and Gas Conservation Commission, Practice and Procedure, Code of Colorado Regulations, 2 CCR 404-1, February 2013. Regulations  
Horizontal Well

Horizontal Well

Definition(s)

Horizontal Well

HORIZONTAL WELL shall mean a well which is drilled in such a way that the wellbore deviates laterally to an approximate horizontal orientation within the target formation with the length of the horizontal component of the wellbore extending at least one hundred feet (100’) in the target formation, measured from the initial point of penetration into the target formation through the terminus of the horizontal component of the wellbore in the same common source of hydrocarbon supply. Source: Oil and Gas Conservation Commission, Practice and Procedure, Code of Colorado Regulations, 2 CCR 404-1, February 2013. Regulations  

Horizontal Well

Horizontal Well―well with the wellbore drilled laterally at an angle of at least 80 degrees to the vertical and with a horizontal displacement of at least 50 feet in the pool in which the well is completed for production, measured from the initial point of penetration into such pool. Source: Natural Resources, Office of Conservation – General Operations, Louisiana Administrative Code, Title 43, Part XIX, March 2013. Regulations  

Horizontal Well

“Horizontal well” means a directional well bore with one or more laterals that extend a minimum of 100 feet horizontally in the target zone.  A well with multiple laterals from a common well bore in the same or different target zones or formations shall be considered one well. Source: Oil and Gas, New Mexico Administrative Code Title 19, Chapter 15, January 2013. Regulations  
High Density Area

High Density Area

Definition(s)

High Density Area

HIGH DENSITY AREA shall mean any tract of land determined to be a high density area in accordance with Rule 603.b. Source: Oil and Gas Conservation Commission, Practice and Procedure, Code of Colorado Regulations, 2 CCR 404-1, February 2013. Regulations  
Health Professional

Health Professional

Definition(s)

Health Professional

HEALTH PROFESSIONAL shall mean a physician, physician assistant, nurse practitioner, registered nurse, or emergency medical technician licensed by the State of Colorado. Source: Oil and Gas Conservation Commission, Practice and Procedure, Code of Colorado Regulations, 2 CCR 404-1, February 2013. Regulations  
Groundwater

Groundwater

Definition(s)

Groundwater

GROUNDWATER means subsurface waters in a zone of saturation. Source: Oil and Gas Conservation Commission, Practice and Procedure, Code of Colorado Regulations, 2 CCR 404-1, February 2013. Regulations  

Groundwater

Subsurface water occupying the saturated zone. (GEMI, 2012). Source: Identifying and assessing water sources: Guidance document for the onshore oil and gas industry, International Petroleum Industry Environmental Conservation Association (IPIECA), 2014. Global Standards