BS EN ISO 13628-2:2006 pdf download.Petroleum and naturalgas industries -Design and operation of subsea production systems —— Part 2: Unbonded flexible pipe systems for subsea and marine applications.
5.6 System requirements
5.6.1 Minimum system requirements
5.6.1.1 General
5.6.1.1.1 The purchaser shall specify the system functional requirements of the poject The requirements of 5.6.12. 5,6,1.9. and 5.6.1.10 shall be specified by the purchaser. Specification of the other system requirements defined in Clause 5 should be considered. Annex A may be referenced for guidelines.
5.6.1.1.2 The purchaser should specify the documentation, as listed in Clause 9, to be delivered by the manufacturer.
5.6.1.2 Application definition
The flexible pipe system shall be specified as either tiowline, riser or ‘umper. The flexible pipe application shall be specified as either static or dynamic and the expected number of load cycles and magnitudes should be specified for dynamic cases.
5.6.1.3 CorrosIon protection
The corros4on protection requirements for the flexible pipe should be specified, considering the following:
a) end tilling internal and external corrosion protection;
b) cathodic protection system for the pipe:
C) protection voltage, current source and current density.
5.6.1.4 Thermal insulation
The purchaser should specify any performance requirements of the flexible pipe for heat loss or retention. Overall heat transfer coefficients shall be based on pipe nominal ID and shall differentiate between the pipe itself and any external effects, such as soil cover for buried pipe.
5.6.1.5 Gas venting
A gas-venting system shall be required to prevent excessive pressure build-up in the annulus of the pipe, Requirements the purchaser has for the gas-venting system should be specified, considering the following.
5.6.1 Minimum system requirements
5.6.1.1 General
5.6.1.1.1 The purchaser shall specify the system functional requirements of the poject The requirements of 5.6.12. 5,6,1.9. and 5.6.1.10 shall be specified by the purchaser. Specification of the other system requirements defined in Clause 5 should be considered. Annex A may be referenced for guidelines.
5.6.1.1.2 The purchaser should specify the documentation, as listed in Clause 9, to be delivered by the manufacturer.
5.6.1.2 Application definition
The flexible pipe system shall be specified as either tiowline, riser or ‘umper. The flexible pipe application shall be specified as either static or dynamic and the expected number of load cycles and magnitudes should be specified for dynamic cases.
5.6.1.3 CorrosIon protection
The corros4on protection requirements for the flexible pipe should be specified, considering the following:
a) end tilling internal and external corrosion protection;
b) cathodic protection system for the pipe:
C) protection voltage, current source and current density.
5.6.1.4 Thermal insulation
The purchaser should specify any performance requirements of the flexible pipe for heat loss or retention. Overall heat transfer coefficients shall be based on pipe nominal ID and shall differentiate between the pipe itself and any external effects, such as soil cover for buried pipe.
5.6.1.5 Gas venting
A gas-venting system shall be required to prevent excessive pressure build-up in the annulus of the pipe, Requirements the purchaser has for the gas-venting system should be specified, considering the following.
