ISO/DIS 13628-6

Petroleum and natural gas industries -- Design and operation of subsea production systems

Industries du pétrole et du gaz naturel -- Conception et exploitation des systèmes de production immergés

Standards Content (sample)

DRAFT INTERNATIONAL STANDARD ISO/DIS 13628-6
ISO/TC 67/SC 4 Secretariat: ANSI
Voting begins on Voting terminates on
2012-01-12 2012-06-12

INTERNATIONAL ORGANIZATION FOR STANDARDIZATION  МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ  ORGANISATION INTERNATIONALE DE NORMALISATION

Petroleum and natural gas industries — Design and operation
of subsea production systems —
Part 6:
Subsea production control systems

Industries du pétrole et du gaz naturel — Conception et exploitation des systèmes de production immergés —

Partie 6: Commandes pour équipements immergés
[Revision of second edition (ISO 13628-6:2006)]
ICS 75.180.10
ISO/CEN PARALLEL PROCESSING

This draft has been developed within the International Organization for Standardization (ISO), and

processed under the ISO-lead mode of collaboration as defined in the Vienna Agreement.

This draft is hereby submitted to the ISO member bodies and to the CEN member bodies for a parallel

five-month enquiry.

Should this draft be accepted, a final draft, established on the basis of comments received, will be

submitted to a parallel two-month approval vote in ISO and formal vote in CEN.

In accordance with the provisions of Council Resolution 15/1993 this document is circulated in

the English language only.

Conformément aux dispositions de la Résolution du Conseil 15/1993, ce document est distribué

en version anglaise seulement.

To expedite distribution, this document is circulated as received from the committee

secretariat. ISO Central Secretariat work of editing and text composition will be undertaken at

publication stage.

Pour accélérer la distribution, le présent document est distribué tel qu'il est parvenu du

secrétariat du comité. Le travail de rédaction et de composition de texte sera effectué au

Secrétariat central de l'ISO au stade de publication.

THIS DOCUMENT IS A DRAFT CIRCULATED FOR COMMENT AND APPROVAL. IT IS THEREFORE SUBJECT TO CHANGE AND MAY NOT BE

REFERRED TO AS AN INTERNATIONAL STANDARD UNTIL PUBLISHED AS SUCH.

IN ADDITION TO THEIR EVALUATION AS BEING ACCEPTABLE FOR INDUSTRIAL, TECHNOLOGICAL, COMMERCIAL AND USER PURPOSES,

DRAFT INTERNATIONAL STANDARDS MAY ON OCCASION HAVE TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL TO BECOME

STANDARDS TO WHICH REFERENCE MAY BE MADE IN NATIONAL REGULATIONS.

RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT, WITH THEIR COMMENTS, NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OF WHICH

THEY ARE AWARE AND TO PROVIDE SUPPORTING DOCUMENTATION.
© International Organization for Standardization, 2012
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ISO/DIS 13628-6
Copyright notice

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ii © ISO 2012 – All rights reserved
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ISO/DIS 13628-6:20XX
Contents Page

1 Scope ......................................................................................................................................................1

2 Normative references ............................................................................................................................2

3 Terms and definitions ...........................................................................................................................4

4 Symbols and abbreviated terms ..........................................................................................................8

5 System requirements ............................................................................................................................9

6 Surface equipment.............................................................................................................................. 33

7 Subsea equipment .............................................................................................................................. 42

8 Interfaces ............................................................................................................................................. 55

9 Materials and fabrication ................................................................................................................... 58

10 Quality ........................................................................................................ Error! Bookmark not defined.

11 Testing ................................................................................................................................................. 60

12 Marking, packaging, storage and shipping ...................................................................................... 72

Annex A (informative) Types and selection of control system .................................................................. 75

Annex D (informative) Operational considerations with respect to flow line pressure exposure ....... 109

Annex E (informative) Analogue devices, level 1 ...................................................................................... 111

Annex F (normative) Digital serial devices, level 2 .................................................................................... 112

Annex G (normative) Intelligent well devices, IWIS .................................................................................. 118

Annex H (normative) Ethernet TCP/IP devices, level 3 ............................................................................. 129

Annex I (normative) Insulation resistance (IR) testing .............................................................................. 137

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ISO/DIS 13628-6:20XX
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies

(ISO member bodies). The work of preparing International Standards is normally carried out through ISO

technical committees. Each member body interested in a subject for which a technical committee has been

established has the right to be represented on that committee. International organizations, governmental and

non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the

International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.

The main task of technical committees is to prepare International Standards. Draft International Standards

adopted by the technical committees are circulated to the member bodies for voting. Publication as an

International Standard requires approval by at least 75 % of the member bodies casting a vote.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent

rights. ISO shall not be held responsible for identifying any or all such patent rights.

ISO 13628-6 was prepared by Technical Committee ISO/TC 67, Materials, equipment and offshore structures

for petroleum and natural gas industries, Subcommittee SC 4, Drilling and production equipment.

This second edition cancels and replaces the first edition (ISO 13628-6:2000) which has been technically

revised.

ISO 13628 consists of the following parts, under the general title Petroleum and natural gas industries —

Design and operation of subsea production systems:
 Part 1: General requirements and recommendations
 Part 2: Unbonded flexible pipe systems for subsea and marine applications
 Part 3: Through flowline (TFL) systems
 Part 4: Subsea wellhead and tree equipment
 Part 5: Subsea umbilicals
 Part 6: Subsea production control systems
 Part 7: Completion/workover riser systems

 Part 8: Remotely Operated Vehicle (ROV) interfaces on subsea production systems

 Part 9: Remotely Operated Tools (ROT) intervention systems
 Part 10: Specification for bonded flexible pipe
 Part 11: Flexible pipe systems for subsea and marine applications
 Part 12:Dynamic production risers (in preparation)

 Part 13:Remotely operated tools and interfaces on subsea production systems (in preparation)

 Part 14: High integrity pressure protection system (HIPPS) (in preparation)
iii
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ISO/DIS 13628-6:20XX
 Part 15: Subsea structures and manifolds

 Part 16: Specifications for flexible pipes ancillary equipment (in preparation)

 Part 17: Recommended practice for flexible pipes ancillary equipment (in preparation)

Introduction

Description of hardware is included in this part of ISO 13628 to illustrate functional requirements. This part of

ISO 13628 should not be interpreted in a way which would limit new solutions with documented improved life-

cycle benefits.

This part of ISO 13628 establishes design standards for systems, subsystems, components and operating

fluids in order to provide for the safe and functional control of subsea production equipment.

This part of ISO 13628 contains various types of information related to subsea production control systems.

They are

 informative data that provide an overview of the architecture and general functionality of control systems

for the purpose of introduction and information,
 basic prescriptive data that apply to by all types of control system,

 selective prescriptive data that are control-system-type sensitive and apply only where relevant,

 optional data or requirements that need be adopted only when considered necessary either by the

purchaser or the vendor.

In view of the diverse nature of the data provided, control system purchasers and specifiers are advised to

select from this part of ISO 13628 only the provisions needed for the application at hand. Failure to adopt a

selective approach to the provisions contained herein can lead to the subsea control system being over

specified and higher purchase costs.
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INTERNATIONAL STANDARD ISO/DIS 13628-6:20XX
Petroleum and natural gas industries — Design and operation
of subsea production systems —
Part 6:
Subsea production control systems
1 Scope

This part of ISO 13628 is applicable to design, fabrication, testing, installation and operation of subsea

production control systems.

This part of ISO 13628 covers surface control system equipment, subsea-installed control system equipment

and control fluids. This equipment is utilized for control of subsea production of oil and gas and for subsea

water and gas injection services. Where applicable, this part of ISO 13628 can be used for equipment on

multiple-well applications.

Rework and repair of used equipment are beyond the scope of this part of ISO 13628.

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ISO/DIS 13628-6:20XX
2 Normative references

The following referenced documents are indispensable for the application of this document. For dated

references, only the edition cited applies. For undated references, the latest edition of the referenced

document (including any amendments) applies.

ISO 3722, Hydraulic fluid power — Fluid sample containers —Qualifying and controlling cleaning methods

ISO 4406:1999, Hydraulic fluid power — Fluids — Method for coding the level of contamination by solid

particles

ISO 4407, Hydraulic fluid power — Fluid contamination – Determination of particulate contamination by the

counting method using an optical microscope

ISO 7498 (all parts), Information processing systems — Open Systems Interconnection — Basic Reference

Model

ISO/IEC 8802-3, Information technology — Telecommunications and information exchange between systems

— Local and metropolitan area networks — Specific requirements — Part 3: Carrier sense multiple access

with collision detection (CSMA/CD) access method and physical layer specifications

ISO 9606-1, Approval testing of welders — Fusion welding — Part 1: Steels

ISO 9606-2, Qualification test of welders — Fusion welding — Part 2: Aluminium and aluminium alloys

ISO 10423, Petroleum and natural gas industries — Drilling and production equipment — Wellhead and

christmas tree equipment

ISO 10945, Hydraulic fluid power — Gas-loaded accumulators — Dimensions of gas ports

ISO/TR 10949, Hydraulic fluid power — Component cleanliness — Guidelines for achieving and controlling

cleanliness of components from manufacture to installation

ISO 11500, Hydraulic fluid power -- Determination of the particulate contamination level of a liquid sample by

automatic particle counting using the light-extinction principle

ISO 11898-3, Road Vehicles – Controller Area Network (CAN) – Part 3: Low-Speed, Fault-Tolerant, Medium-

Dependent Interface

ISO 15607, Specification and qualification of welding procedures for metallic materials — General rules

ISO 15609-2, Specification and qualification of welding procedures for metallic materials —Welding procedure

specification — Part 2: Gas welding

ISO 15610, Specification and qualification of welding procedures for metallic materials — Qualification based

on tested welding consumables

ISO 15611, Specification and qualification of welding procedures for metallic materials — Qualification based

on previous welding experience

ISO 15612, Specification and qualification of welding procedures for metallic materials — Qualification by

adoption of a standard welding procedure

ISO 15613, Specification and qualification of welding procedures for metallic materials — Qualification based

on pre-production welding test

ISO 15614-1, Specification and qualification of welding procedures for metallic materials —Welding procedure

test — Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys

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ISO/DIS 13628-6:20XX

ISO 16889, Hydraulic fluid power — Filters — Multi-pass method for evaluating filtration performance of a filter

element

ISO 21018,Hydraulic fluid power —Monitoring the level of particulate contamination of the fluid — Part 1:

General principles
ANSI/ASME B31.3, Process Piping
ANSI/TIA/EIA-568-B, Commercial Building Telecommunications Cabling Standard
AS 4059, Aerospace fluid power — Cleanliness classification for hydraulic fluids

ASME Boiler and Pressure Vessel Code, Section VIII, Division 1, Rules for the Construction of Pressure

Vessels

ASME Boiler and Pressure Vessel Code, Section IX, Welding and Brazing Qualifications

ASME Boiler and Pressure Vessel Code, Section V,Non-destructive Examination
ASTM D97, Standard Method for Pour Point of Petroleum Products

ASTM D445, Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and the

Calculation of Dynamic Viscosity)
ASTM D1141, Standard Practice for the Preparation of Substitute Ocean Water
ASTM D1401,Water Separability of Petroleum Oils and Synthetic Fluids

ASTM D3233, Standard Test Methods for Measurement of Extreme Pressure Properties of Fluid Lubricants

(Falex Pin and Vee Block Methods)

ASTM G1:2003, Standard Practice for Preparing, Cleaning, and Evaluating Corrosion Test Specimens

BS 7201-1, Hydraulic fluid power — Gas loaded accumulators — Specification for seamless steel accumulator

bodies above 0,5 l water capacity

CiA 309-1, Interfacing CANopen with TCP/IP – Part 1: General Principles and Services

CiA 309-3, Interfacing CANopen with TCP/IP – Part 3: ASCII Mapping
CiA 443, CANopen Profile for SIIS Level-2 Devices

DIN 41612-2, Special contacts for multi two-part connectors; concentric contacts (type C)

IEEE 802.3, CSMA/CD Ethernet
Internet RFC 791, Internet Protocol, http://www.faqs.org/rfcs/rfc791.html

Internet RFC 793, The Transmission Control Protocol (TCP), http://www.faqs.org/rfcs/rfc793.html

Internet RFC 1332, The PPP Internet Protocol Control Protocol (IPCP), http://www.ietf.org/rfc/rfc1332.txt

Internet RFC 1661, The Point-to-Point Protocol (PPP), http://www.faqs.org/rfcs/rfc1661.html

Internet RFC 768, User Datagram Protocol
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ISO/DIS 13628-6:20XX
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
boost

pressure maintained on the spring-return side of a subsea actuator for the purposes of improving closing-time

response
3.2
closed hydraulic circuit

hydraulic circuit (system) where the used control fluid is returned to the HPU through an umbilical return line

3.3
commanded closure

closure of the underwater safety valve and possibly other valves depending on the control system design

NOTE Such commands can originate manually, automatically or as part of an ESD.
3.4
communication distribution unit
CDU

communicates with the host facility and distributes communication within the subsea network in an

electrohydraulic or electric system
3.5
control path

total distance that a control signal (e.g. electrical, optical, hydraulic) travels from the topside control system to

the subsea control module or valve actuator
3.6
design life
specified operational life of system after pre-delivery test
3.7
design pressure

maximum pressure for which the system or component was designed for continuous usage

3.8
diagnostic data
data provided to monitor the condition of the equipment
NOTE Can include the ability to make (engineering) adjustments.
3.9
direct hydraulic control

control method wherein hydraulic pressure is applied through an umbilical line to act directly on a subsea

valve actuator

NOTE Upon venting of the pressure at the surface, the control fluid is returned through the umbilical to the surface

due to the action of the restoring spring in the valve actuator. Subsea functions may be ganged together to reduce the

number of umbilical lines.
3.10
downstream
away from a component in the direction of flow
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ISO/DIS 13628-6:20XX
3.11
electrohydraulic control

control method wherein communication signals are conducted to the subsea system and used to open or

close electrically-controlled hydraulic control valves. See Annex A.
3.12
electric control

control method wherein communication signals and power are conducted to the subsea system and use

motors to open or close Subsea valves. See Annex A.
3.13
expert operation

operating the IWCS with other control commands or other methods than used for normal operation

NOTE Typically used by IWCS supplier or other skilled resource to read IWCS diagnostic data and make

(engineering) adjustments to IWCS equipment.
3.14
flying lead

single or multiple composite grouping of hydraulic, chemical, electrical power, electrical signal, and/or optical

signal carrying conduits used to interconnect various items of subsea equipment.
NOTE Flying leads may be designed for ROV or ROT assisted deployment.
3.15
hydraulic circuit

arrangement of interconnected components which generates, transmits, controls and converts hydraulic

energy
3.16
hydraulic component

individual unit, excluding piping, comprising one or more parts designed to be a functional part of a hydraulic

circuit
3.17
hydrostatic test pressure
maximum test pressure at a level greater than the design pressure
3.18
intelligent well

well that employs permanently installed downhole sensors and/or permanently installed downhole control

devices that are operable from a surface facility
3.19
intelligent well control system
control system used to operate an intelligent well
3.20
looped hydraulic circuit

hydraulic circuit where the return side of the SCM is connected to the return/boost side of the process valve

actuators

NOTE During stroking, used control fluid is expelled to ambient sea for open hydraulic circuits, or into the umbilical

return line for closed hydraulic circuits. At the return stroke, control fluid from the actuator function side is looped via the

DCV to the actuator return/boost side.
3.21
normal operation
operating the system to perform the intended basic functionality
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ISO/DIS 13628-6:20XX
3.22
offset
horizontal component of control path length
3.23
open hydraulic circuit

hydraulic circuit (system) where the used control fluid is exhausted into the ambient sea at the subsea location.

3.24
response time
sum of the signal time and the shift time
3.25
running tool

tool used to install, operate, retrieve, position or connect subsea equipment remotely from the surface

NOTE An example is the subsea control-module running tool.
3.26
shift time

period of time elapsed between the arrival of a control signal at the subsea location (the completion of the

signal time) and the completion of the control function operation

NOTE Of primary interest is the time to fully stroke, on a subsea tree, a master or wing valve that has been

designated as the underwater safety valve.
3.27
signal time

period of time elapsed between the remote initiation of a control command and the initiation of a control

function operation subsea (the commencement of the shift time)
3.28
subsea production control system
control system operating a subsea production system during production operations
3.29
surface safety valve

safety device that is located in the production bore of the well tubing above the wellhead (platform well), or at

the point of subsea well production embarkation onto a platform, and that will automatically close upon loss of

hydraulic pressure
3.30
surface controlled subsurface safety valve

safety device that is located in the production bore of the well tubing below the subsea wellhead and that will

close on loss of hydraulic pressure
3.31
umbilical

combination of electric cables, hoses or steel tubes, either on their own or in combination (or with fibre optic

cables), cabled together for flexibility and over-sheathed and/or armoured for mechanical strength and

typically supplying power and hydraulics, communication and chemicals to a subsea system

3.32
underwater safety valve

safety valve assembly that is declared to be the USV and which will automatically close upon loss of power to

that actuator
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ISO/DIS 13628-6:20XX
3.33
unlooped hydraulic circuit

hydraulic circuit where the actuator return side and the SCM return side are not interconnected. Control fluid is

not looped from either side of the actuator to the other side
3.34
upstream
away from a component against the direction of flow
Pressure definitions
DEFINITION
WIDELY USED
OFFICIAL TERM ALTERNATIVE
3.1.1
TERMS
COMPONENT BASED SYSTEM BASED
A generic component characteristic. The maximum pressure for which the system
The component is expected to function is designed to operate. The system design
RATED

DESIGN normally for a given design life and/or a pressure is limited by the component with the

WORKING DP

PRESSURE number of cycles at the design pressure lowest design pressure. This is the maximum

PRESSURE
in continuous usage. set point for the pressure relief valve.

Constant pressure, at a defined factor Constant pressure, at a defined factor higher

higher than the design pressure applied than the design pressure applied to a system

PROOF to a component for a limited duration to for a limited duration to demonstrate its

HYDROSTATIC

PRESSURE; demonstrate its integrity without integrity without causing destruction or

TEST HTP

TEST causing destruction or deterioration. deterioration. The system is not designed to

PRESSURE

PRESSURE The component is not designed to be be operated at the hydrostatic test pressure

operated at the hydrostatic test
pressure
An operational system characteristic. An operational system characteristic. The

MAXIMUM MAXIMUM The highest pressure at which the highest pressure at which the system is

MAX

WORKING OPERATING component is intended to operate in intended to operate in steady state

PRESSURE PRESSURE steady state conditions. It shallbe equal conditions.
or lower than design pressure.
An operational system characteristic. An operational system characteristic. The
The lowest pressure at which the lowest pressure at which the system is

MINIMUM MINIMUM component is intended to operate in intended to operate in steady state

MIN

WORKING OPERATING steady state conditions. A safety margin conditions. System pressure shallbe equal or

PRESSURE PRESSURE between minimum working pressure, above minimum working pressure to avoid

actuator closing pressure and DCV unintended change of commanded state of
delatching pressure shallbe considered. any DCV or actuator.
On falling pressure from normal working N/A
DCV pressure towards ambient pressure the
DROP-OUT
DELATCHING pressure at which a DCV moves from
PRESSURE
PRESSURE the latched open position into the fail-
safe close (spring loaded) position.
A generic component characteristic. The maximum ambient pressure (induced by
The maximum ambient pressure hydrostatic head) for which the system is
DESIGN
(induced by hydrostatic head) for which designed to operate continuously. The
AMBIENT

the component is designed to operate system design ambient pressure is limited by

PRESSURE
continuously. the component with the lowest design
ambient pressure in the system
N/A Pressure at which the MCS locks any further
INTERLOCK
DCV operation to avoid a critical pressure
PRESSURE
drop below the minimum working pressure.
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ISO/DIS 13628-6:20XX
Definition for 3-phase system according to IEC terminology
DEFINITION
WIDELY USED
TERM ALTERNATIVE
TERMS
COMPONENT BASED SYSTEM BASED
A generic cable characteristic. The The maximum voltage for which the cable is
cable is expected to function normally designed to operate.
for a given design life in continuous AC The U is the voltage between a line and
Voltage AC Rated voltage U U (U )
rms 0 m
voltage usage. common reference (ground), U is the line to
line voltage and (U ) is the highest system
voltage for which the cable may be used
A generic cable characteristic. The The maximum voltage for which the cable is
cable is expected to function normally designed to operate.
Voltage DC Rated voltage U
for a given design life in continuous DC The U is the voltage between a line and
usage. common reference (ground)
4 Symbols and abbreviated terms

β filtration ratio obtained in ISO 16889 and used to rate the performance of hydraulic filters

ANSI American National Standards Institute
API American Petroleum Institute
AS Aerospace Standard
ASME American Society of Mechanical Engineers
ASTM American Society for Testing and Materials
AWS American Welding Society
CAPEX capital expenditure
CAT-5 ANSI/TIA/EIA-568-B cables
CAT-6 ANSI/TIA/EIA-568-B.2-1 cables
CiA CAN in automation
CIU chemical injection unit
CIV chemical injection valve
DC direct current
DCS distributed control system
DCV directional control valve
DH direct hydraulic
EPU electrical power unit
EM electromagnetic
EMC electromagnetic compatibility
ESD emergency shutdown
ESS environmental stress screening
ETH ethernet
EUT equipment under test
EXT extended
FAT factory acceptance test
GND ground
HIPPS high integrity pressure protection system
HP high pressure
HPU hydraulic power unit
HPHT high pressure high temp application
ICSS integrated control and safety system
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ISO/DIS 13628-6:20XX
IEC International Electrotechnical Commission
I/O input/output
IP Internet Protocol
ISD intelligent seabed device

ISAS ISD surface application system (system for acquisition and/or control of ISD)

iSEM intelligent well subsea electronics module
ISO International Organization for Standardization
IWCS intelligent well control system
IWE intelligent well equipment
LP low pressure
MAC media access control
MCS master control station
MIL-STD military standard
OPC object linking and embedding (OLE) for process control
OPEX operational expenditure
OREDA offshore reliability data
OSI open system interconnection
PH piloted hydraulic
PMV production master valve
PPP point-to-point protocol
PSD process shutdown
PTFE polytetrafluoroethylene
PWV production wing valve
RET return
ROT remotely operated tool
ROV remotely operated vehicle
RX radio receiver
SCM subsea control module
SCSSV surface-controlled subsurface safety valve
SDU subsea distribution unit
SPCS subsea production control system
SPS subsea production system
TCP transmission control protocol
TX radio transmitter
UDP user datagram protocol
UPS uninterruptible power supply
USV underwater safety valve – typically the PMV and/or PWV
VDC volts direct current
5 System requirements
5.1 General

This clause describes the activities of specifying organisations. Figure 1 depicts the typical subsea control

system elements. Reference should be made to Annex A for types and selection of control system

...