ISO/TS 12747:2011 石油および天然ガス産業—パイプライン輸送システム—パイプラインの寿命を延ばすための推奨プラクティス | ページ 6

3.1

acceptance criteria

specified indicators or measures employed in assessing the ability of a component, structure, or system to perform its intended function

3.2

anomaly

discrepancy or deviation of an element of the pipeline system from the established rules and limits

3.3

design life

period for which the design basis is planned to remain valid

[SOURCE: ISO 13623]

3.4

failure

event in which a component or system does not perform according to its operational requirements

3.5

flow assurance

ensuring successful and economical flow of fluid through the pipeline system

3.6

high integrity pressure protection system

mechanical overpressure protection system that rapidly isolates the pipeline if there is a risk of exceeding the maximum allowable operating pressure (MAOP)

3.7

life extension

additional period of time beyond the original design or service life (but within the assessed remnant life) for which permission to continue operating a pipeline system is granted by the regulatory bodies

Note 1 to entry: Life extension is considered as a modification to the design basis.

3.8

location class

geographic area classified according to criteria based on population density and human activity

[SOURCE: ISO 13623]

3.9

maximum allowable operating pressure

maximum pressure at which the pipeline system, or parts thereof, is allowed to be operated

[SOURCE: Adapted from ISO 13623]

3.10

operation

activities involved with running and maintaining the pipeline system in accordance with the design premise

3.11

operator

party ultimately responsible for the operation and integrity of the pipeline system

3.12

pipeline integrity management system

management system designed to ensure the safe operation of a pipeline system in accordance with the design intent, by control of the physical condition of a pipeline, the operating conditions within the system and any changes made to the system

3.13

pipeline

those facilities through which fluids are conveyed, including pipe, pig traps, components and appurtenances, up to and including the isolating valves

[SOURCE: Adapted from ISO 13623]

3.14

pipeline

pipeline laid in maritime waters and estuaries seaward of the ordinary high water mark

[SOURCE: ISO 13623]

3.15

pipeline

pipeline laid on or in land, including lines laid under inland water courses

[SOURCE: ISO 13623]

3.16

pipeline system

pipelines, stations, supervisory control and data acquisition system (SCADA), safety systems, corrosion protection systems, and any other equipment, facility or building used in the transportation of fluids

[SOURCE: ISO 13623]

3.17

remnant life

assessed period of time (irrespective of the defined design life) for which a pipeline system can be operated safely, based on time-dependent degradation mechanisms such as corrosion and fatigue

3.18

required life

desired operational life of the pipeline, accounting for continued operation beyond the original pipeline design life

3.19

risk

qualitative or quantitative likelihood of an event occurring, considered in conjunction with the consequence of the event

3.20

risk management

policies, procedures and practices involved in the identification, assessment, control and mitigation of risks

3.21

service life

length of time over which the pipeline system is intended to operate

3.22

technical integrity

ability of the pipeline system to function in accordance with the design basis

3.23

threat

any activity or condition that can adversely affect the pipeline system if not adequately controlled

3.24

topsides

structures and equipment placed on a supporting structure (fixed or floating) to provide some or all of a platform’s functions