ISO/DIS 13628-14

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 13628-14
ISO/TC 67/SC 4 Secretariat: ANSI
Voting begins on Voting terminates on
2011-10-13 2012-03-13

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 14:
Subsea high integrity pressure protection systems (HIPPS)

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

Partie 14: Systèmes immergés de protection contre les pressions à haute intégrité

ICS 75.180.10
ISO/CEN PARALLEL PROCESSING

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

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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

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

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© International Organization for Standardization, 2011
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ISO/DIS 13628-14
Copyright notice

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ii © ISO 2011 – All rights reserved
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ISO/DIS 13628-14
Contents Page

Foreword ............................................................................................................................................................. v

Introduction ....................................................................................................................................................... vii

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

2 Normative references ............................................................................................................................ 1

3 Terms, definitions, symbols and abbreviations ................................................................................. 2

3.1 Terms and definitions ........................................................................................................................... 2

3.2 Symbols and abbreviations .................................................................................................................. 5

4 General requirements ........................................................................................................................... 6

4.1 Principle.................................................................................................................................................. 6

4.2 Production characteristics ................................................................................................................... 8

4.3 Flowline rupture considerations .......................................................................................................... 8

4.4 Process hazard and risk analysis ........................................................................................................ 8

4.5 Selection and determination of SIL ..................................................................................................... 9

4.6 Safety requirement specification (SRS) .............................................................................................. 9

5 Procedure – Basic design................................................................................................................... 11

5.1 Principle - Design basis requirements .............................................................................................. 11

5.2 Modes of failure ................................................................................................................................... 14

5.3 Temperature ......................................................................................................................................... 14

5.4 Pressure ............................................................................................................................................... 14

5.5 Control system .................................................................................................................................... 15

5.6 Materials class rating .......................................................................................................................... 17

5.7 External hydrostatic pressure ............................................................................................................ 17

5.8 Transportation and installation conditions ...................................................................................... 18

5.9 Equipment design ............................................................................................................................... 18

5.10 Control systems .................................................................................................................................. 19

6 Materials and equipment .................................................................................................................... 22

6.1 HIPPS final element equipment ......................................................................................................... 22

6.2 HIPPS control system and final element-mounted control devices............................................... 24

6.3 Welding ................................................................................................................................................. 25

6.4 Coatings (external) .............................................................................................................................. 25

7 Quality control ..................................................................................................................................... 25

7.1 General ................................................................................................................................................. 25

7.2 HIPPS closure devices—PSL ............................................................................................................. 26

7.3 Structural components ....................................................................................................................... 27

7.4 Lifting devices ..................................................................................................................................... 27

7.5 Cathodic protection ............................................................................................................................. 27

7.6 Storing and shipping ........................................................................................................................... 27

8 Equipment marking ............................................................................................................................. 28

8.1 General ................................................................................................................................................. 28

8.2 Pad eyes and lift points ...................................................................................................................... 28

9 Validation.............................................................................................................................................. 28

9.1 General ................................................................................................................................................. 28

9.2 Validation for HIPPS closure devices (isolation valve) and actuator ............................................ 29

9.3 Validation for monitor/bleed, bypass, injection valves ................................................................... 29

9.4 Validation for DCV ............................................................................................................................... 29

9.5 Validation of sensors, logic solvers, and control system devices................................................. 30

9.6 Validation of HIPPS final element ...................................................................................................... 31

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ISO/DIS 13628-14

9.7 Estimating SIL for HIPPS final element components...................................................................... 31

10 Commissioning and installation ....................................................................................................... 32

10.1 General ................................................................................................................................................. 32

10.2 Planning ............................................................................................................................................... 32

10.3 Installation ........................................................................................................................................... 34

10.4 Commissioning ................................................................................................................................... 34

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ISO/DIS 13628-14
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 13628-14 was prepared by Technical Committee ISO/TC 67, Materials, equipment and offshore

structures for the petroleum, petrochemical and natural gas industries, Subcommittee SC 4, Drilling and

production equipment.
This is the first edition of ISO 13628-14.

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: 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 sytems
 Part 7: Completion/workover riser systems

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

 Part 9 Remotely Operated Tool (ROT) intervention systems (combined into Part 8)

 Part 10: Specification for bonded flexible pipe
 Part 11: Flexible pipe systems for subsea and marine applications
 Part 12: Dynamic production risers (under preparation)
 Part 13: Vacant
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ISO/DIS 13628-14
 Part 14: Subsea high integrity pressure protection systems (HIPPS)
 Part 15: Subsea structures and man ifolds (under preparation)

 Part 16 Recommended practice for flexib le pipe ancilliary equipment (under preparation)

 Part 17: Specification for flexible pipe ancillary equipment (under preparation)

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ISO/DIS 13628-14
Introduction

The part of International Standard ISO 13628 has been prepared to provide general recommendations and

overall guidance for the designa and operation of remotely operated tools comprising ROT and ROV tooling,

used on subsea production systems for the petroleum and natural gas indsutries worldwide.

Specific design requirements are used where a standard design or operating principle has been adopted in

the industry for a period of time. Requirements valid for certain geographic areas or environmental conditions,

are included where applicable.

The functional recommendations for the tooling systems and interfaces on the subsea production system

allow alternative solutions to suite field specific requirements. The intention is to facilitate and complement the

decision process rather than replace individual engineering judgement and, where requirements are non-

mandatory, to provide positive guidance for hte selection of an optimum solution.

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DRAFT INTERNATIONAL STANDARD ISO/DIS 13628-14
Petroleum and natural gas industries — Design and operation
of subsea production systems —
Part 14:
Subsea high integrity pressure protection systems (HIPPS)
1 Scope

This part of the International Standard ISO 13628 series addresses the requirements for the use of high integrity

pressure protection systems (HIPPS) for subsea applications. ISO 10418, IEC 61508, and IEC 61511 specify

the requirements for onshore, topsides, and subsea safety instrumented systems (SIS’s) and are applicable to

HIPPS, which are designed to autonomously isolate downstream facilities from overpressure situations. This

International Standard integrates these requirements to address the specific needs of subsea production. These

requirements cover the HIPPS pressure sensors, logic solver, shutdown valves, and ancillary devices including

testing, communications, and monitoring subsystems.
2 Normative references

The following referenced documents are indispensable for the application of this International Standard. For

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

document (including any amendments) applies.

ISO 10418, Petroleum and natural gas industries – Offshore production installations – Basic surface safety

systems
ISO 10423 , Petroleum and natural gas industries,

ISO 13628-1 , Petroleum and natural gas industries, Design and operation of subsea production systems,

General requirements and recommendations

ISO 13628-3 , Petroleum and natural gas industries, Design and operation of subsea production systems,

Through flowline (TFL) systems

ISO 13628-4 , Petroleum and natural gas industries, Design and operation of subsea production systems,

Subsea wellhead and Christmas tree equipment

ISO 13628-6 , Petroleum and natural gas industries, Design and operation of subsea production systems,

Subsea Production Control Systems

1) API 6A, Specification Wellhead and Christmas Tree Equipment, is equivalent to ISO 10423.

2) API 17A, Design and Operation of Subsea Production Systems—General Requirements and Recommendations, is

equivalent to ISO 13628-1.

3) API 17C, Recommended Practice on TFL (Through Flowline) Systems, is equivalent to ISO 13628-3.

4) API 17D, Recommended Practice on Subsea Wellhead and Christmas Tree Equipment, is equivalent to ISO 13628-4.

5) API 17F, Specification for Subsea Production Control Systems, is equivalent to ISO13628-6.

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ISO/DIS 13628-14

ISO 13628-8 , Petroleum and natural gas industries, Design and operation of subsea production systems,

Remotely operated vehicle (ROV) interfaces.

NOTE ISO 13628-8 will be withdrawn and r eplaced by ISO 13628-13 when published. In this document, any

reference to ISO 13628-8 should be replaced with ISO 13628-13 when published and available.

IEC 61508, Part 1 to Part 4, Functional safety of electrical/electronic/programmable electronic safety-related

systems

IEC 61511, Part 1, Functional safety—Safety instrumented systems for the process industry sector

API Recommended Practice 6HT, Heat Treatment and Testing of Large Cross Section and Critical Section

Components
ANSI/ASME B31.3, Process Piping
ANSI/ASME B31.8, Gas Transmission and Distribution Piping Systems
AWS D1.1, Structural Welding Code—Steel

ANSI/SAE J343, Test and Test Procedures for SAE 100R Series Hydraulic Hose and Hose Assemblies

ANSI/SAE J517, Hydraulic Hose

SAE AS 4059, Aerospace Fluid Power—Cleanliness Classification for Hydraulic Fluids

3 Terms, definitions, symbols and abbreviations
3.1 Terms and definitions
For the purposes of this document, the following definitions apply.
3.1.1
alternative pressure source

injection fluid used for valve seal test not to exceed the RWP of the HIPPS at its depth rating

NOTE Injection fluid can be any fluid that can be introduced into the system not only for testing but also for flushing

or preventing hydrates from forming.
3.1.2
commissioning
functional validation of equipment and facilities prior to initiating operations
3.1.3
dangerous failure

failure which has potential to put safety-related system in a hazardous or fail-to-function state

6) API 17H, Recommended Practice for Remotely Operated Vehicle (ROV) Interfaces on Subsea Production Systems, is

equivalent to ISO 13628-8.
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ISO/DIS 13628-14
3.1.4
final element

part of a SIS which implements the physical action necessary to achieve a safe state

3.1.5
fortified section

piping and equipment with an intermediate pressure rating somewhere between the SIP (high) and MAWP

(low) ratings
3.1.6
hardware fault tolerance
HFT

ability of a functional unit to continue to perform a required function in the presence of faults or errors

NOTE In determining the HFT, no account is taken of other measures that may control the effects of faults such as

diagnostics, and where one fault directly leads to the occurrence of one or more subsequent faults, these are considered

as a single fault.
3.1.7
high integrity pressure protection system
HIPPS

mechanical and electrical-hydraulic SIS used to protect production assets from high-pressure upsets

3.1.8
maximum allowable operating pressure
MAOP

maximum pressure at which a system is allowed to operate that shall not be exceeded in steady state

conditions
3.1.9
maximum operating pressure

maximum pressure predicted including deviations from normal operations, such as start-up/shutdown, process

flexibility, control requirements, and process upsets
3.1.10
operating pressure

pressure in the equipment when the plant operates at steady state condition, subject to normal variation in

operating parameters
3.1.11
overpressure source

one or a combination of sources which can create a pressure buildup beyond the RWP of hardware

downstream

NOTE Examples include the reservoir, pressure or boosting equipment (i.e. pump/compressor) manifolds, or other

fluid injection sources.
3.1.12
pipeline

piping, risers, and appurtenances installed for transporting oil, gas, sulfur, and produced waters

3.1.13
process hazard

process upset that could result in loss of life, injury to personnel, pollution, or damage to production assets

such as overpressure and the subsequent rupture or failure of the process equipment

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ISO/DIS 13628-14
3.1.14
rated working pressure
RWP

maximum internal pressure that the equipment is designed to contain and/or control

3.1.15
reliability

likelihood of a given piece of safety-related equipment to remain in operation for the expected duration

3.1.16
risk analysis

determination of the frequency of the event (e.g. overpressure) and the ability of safeguards (e.g. HIPPS) to

reduce the frequency or the consequence such that the event becomes tolerable, either by being very rare

(unlikely) or lessening the impact
3.1.17
safe failure

failure which does not have the potential to put the safety-related system in a hazardous or fail-to-function

state
3.1.18
safe failure fraction
SFF

ratio of the average rate of safe failures plus dangerous detected failures of the subsystem to the total

average failure rate of the component, as defined by IEC 61508, Part 2
3.1.19
safety instrumented function
SIF

safety function with a specified SIL which is necessary to achieve functional safety and which can be either a

safety instrumented protection function or a safety instrumented control function

3.1.20
safety integrity level
SIL

discrete level (one out of four) for specifying the safety integrity requirements of the SIFs to be allocated to the

SIS. SIL 4 has the highest level of safety integrity; SIL 1 has the lowest
3.1.21
shut-in pressure
SIP

full internal product process pressure that shall be contained by the HIPPS at the seabed when the high-

pressure source is abruptly isolated to protect lower pressure hardware downstream of the spec break

3.1.22
specification (spec) break

point at which equipment pressure rating changes from one RWP rating to a lower one (or vice versa)

downstream

NOTE These locations are defined by the normal operating conditions of a flow stream that allows the use of lower

design pressure equipment.
3.1.23
subsea tieback

an offshore field developed with one or more wells completed on the seafloor, using subsea trees

NOTE The wells are connected by flowlines and umbilicals—the pathways for electrical and hydraulic signals—to a

production facility in another area.
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ISO/DIS 13628-14
3.1.24
systems integration test
SIT

a process conducted on land to verify the fit, form, and function between interfaces of all subsea equipment

and associated running tools prior to offshore installation
3.1.25
systematic failure

failure related in a deterministic way to a certain cause, which can only be eliminated by a modification of the

design or of the manufacturing process, operational procedures, documentation, or other relevant factors

3.2 Symbols and abbreviations
C number of anticipated HIPPS final element closures per year
L expected design operating life of the HIPPS final element (years)
MTBF mean time (number of cycles) between failures
PFD average PFD

t defined as the planned testing interval of the entire HIPPS (sensors, logic solvers, and final

elements) while in-service to maintain the demonstrated SIL
λ dangerous undetectable failures
λ total failure rate
TOT
BSDV boarding shutdown valve
DCS distributed control system
DCV directional control valve
EPU electrical power unit
ESD emergency shutdown
FAT factory acceptance test
FIV flowline isolation valve
FMECA failure mode effects and criticality analysis
GOR gas-oil-ratio
HFT hardware fault tolerance
HIPPS high integrity pressure protection system
HPU hydraulic power unit
HSCM HIPPS subsea control module
LOPA layer of protection analysis
MAOP maximum allowable operating pressure
MAWP maximum allowable working pressure
MCS master control station
MOC management of change
MTBF mean time between failures
MTTF mean time to failure
NDE normally de-energized
NE normally energized
PCS production control system
PE programmable electronics
PES programmable electronic system
PFD probability of failure on demand
PLEM pipeline end manifold
PLET pipeline end termination
PR performance requirement
PSD production shutdown
PSH pressure switch high
PSL product specification level
PST partial stroke testing
PSV process safety valve
QRA quantitative risk analysis
QTC qualification test coupon
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ISO/DIS 13628-14
ROT remotely operated tool
ROV remotely operated vehicle
RWP rated working pressure
SAFE safety analysis function evaluation
SCM subsea control module
SCSSV surface controlled subsurface safety valve
SEM subsea electronics module
SFF safe failure fraction
SIF safety instrumented function
SIL safety integrity level
SIP shut-in pressure
SIS safety instrumented system
SIT systems integration test
SRS safety requirement specification
SWL safe working load
TFL through flowline
UPS uninterruptible power supply
USV underwater safety valve
4 General requirements
4.1 Principle

This clause covers system elements that shall be considered when designing a HIPPS. HIPPS is a SIS used

to protect downstream facilities and personnel, and prevent environmental release by containing high-

pressure excursions.

The design and performance of the HIPPS, including all lifecycle activities, should be based on IEC 61511.

Hazard and risk assessments shall be conducted to determine requirements for risk reductions, allocate

safety integrity level (SIL) of the HIPPS, and demonstrate that the risk of overpressure has been adequately

mitigated. Appropriate regulatory agencies should be consulted for additional design and operating

requirements.
A typical HIPPS is shown in Figure 1.
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ISO/DIS 13628-14
Figure 1 — Typical Subsea Production HIPPS Valve Diagram
4.1.1 Pressure Source

The overpressure to be mitigated by the HIPPS could originate from a number of sources. Examples include

but are not limited to high reservoir pressures, subsea pumps, and connection to higher pressure pipeline or

any combination thereof.

The source could be gas, liquid, or multiphase fluid, which have different system response requirements. The

flow composition may change during the production life and may be dependent on topography. All of these

aspects, and any uncertainties associated with them, need to be considered as part of a full HIPPS analysis.

Before additional wells are tied into an existing system or any other change is made that could affect fluid

properties, a new flow analysis should be conducted to ensure that the system is designed to cover the new

configuration.
4.1.2 HIPPS

SIS, defined by this document, provides pressure protection to downstream components.

4.1.3 Subsea fortified zone

A fortified section may be located downstream of the HIPPS isolation valves to allow time to respond to the

system closure determined by the pressure transient calculations. The response time to system closure will be

dependent on the nature of the flow for the specific system and would include consideration of the gas-oil-ratio

(GOR).

The pressure rating of the fortified section will be project-specific and will range from the maximum allowable

operating pressure
...