Subsea-in-60-Minutes-ppt

Subsea Presentation 6/26/01

1

Subsea in Sixty Minutes!

Subsea in Sixty Minutes!


2

SUBSEA SYSTEM COMPONENTSSUBSEA SYSTEM COMPONENTS

Manifold

Jumper

PLEMTree

Umbilical

UTA

Flying LeadsJumperControl Pod


3Why Subsea?Drivers for Using Subsea Systems

Why Subsea?Drivers for Using Subsea Systems

l Economics: production may not justify the CAPEX for a platform.

l Field reservoir areas may not be reached by delineated drilling from surface wells.

l The water depth may be too great to use a surface well platform.

l Early Production: fast-track development is required.

l Economics: production may not justify the CAPEX for a platform.

l Field reservoir areas may not be reached by delineated drilling from surface wells.

l The water depth may be too great to use a surface well platform.

l Early Production: fast-track development is required.


4SUBSEA SYSTEMSAdvantages/ Disadvantages

SUBSEA SYSTEMSAdvantages/ Disadvantages

l Advantages

- Eliminate or reduce CAPEX of platform

- Cost burden transferred from CAPEX to OPEX

- Construction cycle is conducive to fast-track projects

- Suitable to phased projects

l Advantages

- Eliminate or reduce CAPEX of platform

- Cost burden transferred from CAPEX to OPEX

- Construction cycle is conducive to fast-track projects

- Suitable to phased projects

l Disadvantages

- Complex hardware

- Inaccessible for maintenance and repair.

- Intervention is expensive and complex

l Disadvantages

- Complex hardware

- Inaccessible for maintenance and repair.

- Intervention is expensive and complex


5

Field Configurations

Field Configurations


6SUBSEA EQUIPMENT CONFIGURATIONSSatellite Well Systems

SUBSEA EQUIPMENT CONFIGURATIONSSatellite Well Systems

l Individual wells are tied directly to a host facility.

l Tiebacks can be single or multiple wells.

l Hosts can be SWP, TLP, SPAR, FPS, FPSO, etc.

l Individual wells are tied directly to a host facility.

l Tiebacks can be single or multiple wells.

l Hosts can be SWP, TLP, SPAR, FPS, FPSO, etc.


7SUBSEA EQUIPMENT CONFIGURATIONSTemplate Manifold Systems

SUBSEA EQUIPMENT CONFIGURATIONSTemplate Manifold Systems

l Wells are drilled and

completed through

template manifold.

l Central drilling center.

l Well targets reached via

directional drilling.

l May have satellite wells

tied back to manifold.

l Wells are drilled and

completed through

template manifold.

l Central drilling center.

l Well targets reached via

directional drilling.

l May have satellite wells

tied back to manifold.


8FIELD CONFIGURATIONSWell Cluster Systems

FIELD CONFIGURATIONSWell Cluster Systems

l Wells are drilled in

close proximity and

produce through a

common manifold.

l Batch drilling and

completion are

common.

l Components are

small easily

deployed modular

units.

l Wells are drilled in

close proximity and

produce through a

common manifold.

l Batch drilling and

completion are

common.

l Components are

small easily

deployed modular

units.


9

Subsea Wellheads

Subsea Wellheads


10

What is a Subsea Wellhead?What is a Subsea Wellhead?

The subsea wellhead is the

interface between

subsurface equipment

(downhole) and the surface

equipment (tree, BOP,

flowlines, host, etc.)

The subsea wellhead is the

interface between

subsurface equipment

(downhole) and the surface

equipment (tree, BOP,

flowlines, host, etc.)


11What is the purpose of a Subsea Wellhead?

What is the purpose of a Subsea Wellhead?

l Support the BOP (Blowout

Preventer) and seal the well

during drilling

l Support and seal the subsea

tree during production.

l Support the tubing hanger in a

conventional subsea tree.

l Act as a hanger for the casing

strings in the well annulus.

l Support the BOP (Blowout

Preventer) and seal the well

during drilling

l Support and seal the subsea

tree during production.

l Support the tubing hanger in a

conventional subsea tree.

l Act as a hanger for the casing

strings in the well annulus.


12

Subsea Wellhead ClassificationSubsea Wellhead Classification

l Typical Sizes: 13 5/8 in, 16 in, 18 in, 21 in

l Most Common: 18 inch

l Pressure Ratings: 10,000 psi or 15,000 psi

l Common Standard: 18 in x 10,000 psi

l 18 in x 15,000 psi is quickly becoming the new standard

l Typical Sizes: 13 5/8 in, 16 in, 18 in, 21 in

l Most Common: 18 inch

l Pressure Ratings: 10,000 psi or 15,000 psi

l Common Standard: 18 in x 10,000 psi

l 18 in x 15,000 psi is quickly becoming the new standard


13

Wellhead ProfilesWellhead Profiles

l All wellheads have an external profile

for BOP or tree connectors

l Cameron hub or Vetco mandrel

profiles are the most common.

l Cooperative license agreements

allow competitors to provide profile

selections.

l The wellhead profile must match the

BOP or tree connector.

l BOP connectors can be changed out

but subsea trees require a

conversion spool called a tubing

spool.

l All wellheads have an external profile

for BOP or tree connectors

l Cameron hub or Vetco mandrel

profiles are the most common.

l Cooperative license agreements

allow competitors to provide profile

selections.

l The wellhead profile must match the

BOP or tree connector.

l BOP connectors can be changed out

but subsea trees require a

conversion spool called a tubing

spool.


14

Major Subsea Wellhead SuppliersMajor Subsea Wellhead Suppliers

l ABB Vetco

l Cooper Cameron

l Dril-Quip

l FMC

l Kvaerner National

l ABB Vetco

l Cooper Cameron

l Dril-Quip

l FMC

l Kvaerner National


15

Subsea TreesSubsea Trees


16

What is a Subsea Tree?What is a Subsea Tree?

A set of valves and piping to allow the control of a well during production at the mudline and remote to the host facility.

A set of valves and piping to allow the control of a well during production at the mudline and remote to the host facility.


17What Makes Subsea Trees Different from Surface Trees?

What Makes Subsea Trees Different from Surface Trees?

Subsea Trees are:l More complex

l Larger

l More robust

l More expensive

l Inaccessible

Subsea Trees are:l More complex

l Larger

l More robust

l More expensive

l Inaccessible


18

Types of Subsea TreesTypes of Subsea Trees

MudlineTree

MudlineTree

ConventionalTree

ConventionalTree

HorizontalTree

HorizontalTree


19Subsea TreeMajor Components

Subsea TreeMajor Components

PGBPGB

WellheadWellhead

Valve BlockValve Block

Subsea ChokeSubsea Choke

Tree CapTree Cap

Tree ConnectorTree Connector

Tubing HangerTubing Hanger


20

Conventional Vs Horizontal FeaturesConventional Vs Horizontal Features

Dual Bore TreeDual Bore Tree Horizontal TreeHorizontal Tree

l Master & swab valves in vertical bore

l Tree run after tubing

l Tubing Hanger orients from wellhead

l External tree cap

l Master & swab valves in vertical bore

l Tree run after tubing

l Tubing Hanger orients from wellhead

l External tree cap

l No valves in the vertical bore

l Tree run before the tubing

l Tubing hanger orients in tree

l Internal tree cap

l No valves in the vertical bore

l Tree run before the tubing

l Tubing hanger orients in tree

l Internal tree cap


21Horizontal Vs Conventional Trees Configuration

Horizontal Vs Conventional Trees Configuration


22Advantages/Disadvantages Conventional Tree

Advantages/Disadvantages Conventional Tree

Advantagesl Vertical access to annulus

l Tubing is undisturbed if tree is pulled

l Dual completion designs are available

l Tubing hanger seals are not exposed to well fluids

Disadvantagesl The tree must be pulled if tubing must be pulled

l Dual bore Installation/Workover riser required

l More valves required per tree

l More running tools required

Advantagesl Vertical access to annulus

l Tubing is undisturbed if tree is pulled

l Dual completion designs are available

l Tubing hanger seals are not exposed to well fluids

Disadvantagesl The tree must be pulled if tubing must be pulled

l Dual bore Installation/Workover riser required

l More valves required per tree

l More running tools required


23Advantages/Disadvantages Horizontal Tree

Advantages/Disadvantages Horizontal Tree

Advantagesl Installation/Workover riser not required

l Fewer valves per tree required

l Tree is undisturbed if the tubing is pulled

l A larger vertical bore is available

l Fewer running tools required

Disadvantagesl The tubing is pulled if the tree fails

l No vertical access

l Tubing hanger seals are exposed to well fluid

Advantagesl Installation/Workover riser not required

l Fewer valves per tree required

l Tree is undisturbed if the tubing is pulled

l A larger vertical bore is available

l Fewer running tools required

Disadvantagesl The tubing is pulled if the tree fails

l No vertical access

l Tubing hanger seals are exposed to well fluid


24Misc. Tree HardwareJewelry

Misc. Tree HardwareJewelry

l Retrievable subsea chokes

l Tree mounted pressure and temperature transducers

l Downhole pressure and temperature transducers

l Downhole flowmeters

l Tree mounted flowmeters

l ROV overrides on tree valves

l Seal test ports

l Trawlboard and dropped object protection

l Retrievable subsea chokes

l Tree mounted pressure and temperature transducers

l Downhole pressure and temperature transducers

l Downhole flowmeters

l Tree mounted flowmeters

l ROV overrides on tree valves

l Seal test ports

l Trawlboard and dropped object protection


25

How Are Subsea Trees Identified?How Are Subsea Trees Identified?

l Type: Conventional or Horizontal

l Working Pressure Rating : 5,000 , 10,000 , or 15,000 psig

l Tubing Size: production tubing and annulus tubing ( 4-in x 2 in)

l Any Special Features: integral block, clad, guideline/ guidelineless, split, TFL, etc.

Example: Horizontal 4 X 2- 10,000 psi, Inconel clad, guidelineless subsea tree

l Type: Conventional or Horizontal

l Working Pressure Rating : 5,000 , 10,000 , or 15,000 psig

l Tubing Size: production tubing and annulus tubing ( 4-in x 2 in)

l Any Special Features: integral block, clad, guideline/ guidelineless, split, TFL, etc.

Example: Horizontal 4 X 2- 10,000 psi, Inconel clad, guidelineless subsea tree


26

Major Subsea Tree SuppliersMajor Subsea Tree Suppliers

FMC

Cooper Cameron

ABB Vetco

Kvaever National

FMC

Cooper Cameron

ABB Vetco

Kvaever National


27

Subsea Manifold Systems

Subsea Manifold Systems


28

SUBSEA MANIFOLDSSUBSEA MANIFOLDS

l A collection of valves, pipework and connection devices located on the seabed

l A subsea manifold collects flow from multiple wells before transporting the fluid to the host facility

l A collection of valves, pipework and connection devices located on the seabed

l A subsea manifold collects flow from multiple wells before transporting the fluid to the host facility

What is a Subsea Manifold?What is a Subsea Manifold?


29


Why are subsea manifolds necessary?l Collect flow from a number of subsea

wells into a single transportation system

l Provide an economical alternative to individual flowlines

l Commingle production from individual wells

l Provide a mechanism for well testing

l Allows first oil to be produced in a phased well development program

Why are subsea manifolds necessary?l Collect flow from a number of subsea

wells into a single transportation system

l Provide an economical alternative to individual flowlines

l Commingle production from individual wells

l Provide a mechanism for well testing

l Allows first oil to be produced in a phased well development program


30

SUBSEA MANIFOLD TYPESSUBSEA MANIFOLD TYPES

l Template Manifolds

l Cluster Manifolds

l Large Gathering Manifolds

l Hybrid Manifolds

l Template Manifolds

l Cluster Manifolds

l Large Gathering Manifolds

l Hybrid Manifolds


31


Template Manifoldsl Provides drilling base and

manifold in one structurel Provides a multi-well drilling

templatel May be small (i.e. 3-slot) or

large (i.e. 24-slot)l Multi-well subsea tieback to a

host facility

Template Manifoldsl Provides drilling base and

manifold in one structurel Provides a multi-well drilling

templatel May be small (i.e. 3-slot) or

large (i.e. 24-slot)l Multi-well subsea tieback to a

host facility


32


Cluster Manifolds

l Trees are located within 15 to 50

meters

l Generally small (4 or 6-slots)

l Commingles production or

distributes injection

l Retrievable module design

Cluster Manifolds

l Trees are located within 15 to 50

meters

l Generally small (4 or 6-slots)

l Commingles production or

distributes injection

l Retrievable module design


33


Modular Manifolds

l Modular Building block arrangement

l Size may be increases after

installation

l Some designs fold up for smaller

installation package

l Standard design

Modular Manifolds

l Modular Building block arrangement

l Size may be increases after

installation

l Some designs fold up for smaller

installation package

l Standard design


34


Hybrid Manifolds

l Template Manifolds that allow satellite well tie-ins

l Generally large structure for high well count

l Associated production riser system

l Generally located near the platform facility

Hybrid Manifolds

l Template Manifolds that allow satellite well tie-ins

l Generally large structure for high well count

l Associated production riser system

l Generally located near the platform facility


35

BASIC MANIFOLD DESIGNSBASIC MANIFOLD DESIGNS

l Single Header Manifolds

- Water injection

- Gas injection

l Dual or Multiple Header Manifolds

- Oil and gas production systems

- Dual flowlines

- Well test and gas lift capabilities

l Single Header Manifolds

- Water injection

- Gas injection

l Dual or Multiple Header Manifolds

- Oil and gas production systems

- Dual flowlines

- Well test and gas lift capabilities


36


l Typical of gas or water

injection manifolds

l All wells connected to

the main header

l Non-piggable

l Typical of gas or water

injection manifolds

l All wells connected to

the main header

l Non-piggable

Single Header ManifoldsSingle Header Manifolds

Manifold

Flowlines


37


l Selective routing of wells to headers

l Allows round trip pigging

l Accommodates well test via isolation

l Allows dual pressure regime production

l Selective routing of wells to headers

l Allows round trip pigging

l Accommodates well test via isolation

l Allows dual pressure regime production

Dual Header With Selective Branch ValvesDual Header With Selective Branch Valves

Manifold

Flowlines


38


l Selective routing of

wells to production

header or test line

l Allows round trip

pigging

l Allows dual pressure

regime production

l Selective routing of

wells to production

header or test line

l Allows round trip

pigging

l Allows dual pressure

regime production

Multi-Header With Selective Branch ValvesMulti-Header With Selective Branch Valves

Manifold

Flowline

Flowline

Test Line


39

MANIFOLD ASSEMBLY EXAMPLESMANIFOLD ASSEMBLY EXAMPLES

Template ManifoldTexaco Captain Field

North Sea

Template ManifoldTexaco Captain Field

North Sea

Cluster ManifoldBP Foinhaven FieldWest of Shetlands

Cluster ManifoldBP Foinhaven FieldWest of Shetlands


40

MANIFOLD ASSEMBLY EXAMPLESMANIFOLD ASSEMBLY EXAMPLES

Cluster ManifoldTexaco Gemini Field

Gulf of Mexico

Cluster ManifoldTexaco Gemini Field

Gulf of Mexico

Cluster ManifoldShell Popeye Field

Gulf of Mexico

Cluster ManifoldShell Popeye Field

Gulf of Mexico


41

Subsea Jumper Systems

Subsea Jumper Systems


42

SUBSEA JUMPER SYSTEMSSUBSEA JUMPER SYSTEMS

What is a Subsea Jumper?

l A means of connecting

subsea equipment together

l Consists of connection

devices either end of a

jumper spool piece (pipe)

What is a Subsea Jumper?

l A means of connecting

subsea equipment together

l Consists of connection

devices either end of a

jumper spool piece (pipe)


43


Rigid Pipe Spooll Equipment is connected

using a jumper fabricated from rigid pipe

l Can be fabricated on site or onshore

Rigid Pipe Spooll Equipment is connected

using a jumper fabricated from rigid pipe

l Can be fabricated on site or onshore

Flexible Pipe Spooll Flexible pipe spool (e.g.

Coflexip)

l Equipment is connected using flexible pipe

l Manufactured on shore and shipped complete

Flexible Pipe Spooll Flexible pipe spool (e.g.

Coflexip)

l Equipment is connected using flexible pipe

l Manufactured on shore and shipped complete

Subsea Jumper Basic TypesSubsea Jumper Basic Types


44


Rigid JumpersRigid Jumpers


45


Flexible JumpersFlexible Jumpers

HORIZONTAL CONNECTION SYSTEM

HORIZONTAL CONNECTION SYSTEM

Horizontal Arrangement

l Stab and Hinge-Over Design (SHO)

l Mating hubs are positioned together horizontally

l Connection made by running tool or integrated hydraulics

l Hubs are pulled (Running tool) or stoked (integrated hydraulics) together before connection is made

Horizontal Arrangement

l Stab and Hinge-Over Design (SHO)

l Mating hubs are positioned together horizontally

l Connection made by running tool or integrated hydraulics

l Hubs are pulled (Running tool) or stoked (integrated hydraulics) together before connection is made

Collet Connector

Receiver Structure

Vertical Connection System


48

Subsea

Production Control Systems

Subsea

Production Control Systems


49

Subsea Control SystemsSubsea Control Systems

Why do we need them?l To enable remote control of subsea production wells by:

- Operation of subsea valves

- Adjusting subsea chokes

l To enable the safe operation of subsea wells by:- Closing valves on command

- Performing shutdown operations

- Enabling interlock functions

l To monitor conditions during production by:- Readback of produced fluid conditions

- Warning of unstable/ undesirable conditions

- Continually updating all system information

Why do we need them?l To enable remote control of subsea production wells by:

- Operation of subsea valves

- Adjusting subsea chokes

l To enable the safe operation of subsea wells by:- Closing valves on command

- Performing shutdown operations

- Enabling interlock functions

l To monitor conditions during production by:- Readback of produced fluid conditions

- Warning of unstable/ undesirable conditions

- Continually updating all system information


50

Subsea Control System TypesSubsea Control System Types

l 1. Direct Hydraulic

- Up to 3 miles

- Single wells

l 2. Piloted Hydraulic

- Up to 7 miles

- Low well count

l 3. Electro Hydraulic

- 65 miles + to date

- Multiple wells

l 1. Direct Hydraulic

- Up to 3 miles

- Single wells

l 2. Piloted Hydraulic

- Up to 7 miles

- Low well count

l 3. Electro Hydraulic

- 65 miles + to date

- Multiple wells

$$

$$$$

$$$$$$$$$$$$


51What Can Subsea Control Systems Do?

What Can Subsea Control Systems Do?

FUNCTION

Tree Valves

SCSSVS

Chokes

Manifold Valves

Pipeline Valves

Throttle Valves

PREVENT

Operator Error

Overpressure

Incorrect Valve Operation

FUNCTION

Tree Valves

SCSSVS

Chokes

Manifold Valves

Pipeline Valves

Throttle Valves

PREVENT

Operator Error

Overpressure

Incorrect Valve Operation

MONITOR

Pressure

Temperature

Flow Rate

Choke Position

Valve Position

Erosion Rates

Corrosion Rates

RESPOND

Automatic Well Shut in

Automatic Choke Control

Automatic System Shut in

MONITOR

Pressure

Temperature

Flow Rate

Choke Position

Valve Position

Erosion Rates

Corrosion Rates

RESPOND

Automatic Well Shut in

Automatic Choke Control

Automatic System Shut in


52Electro/Hydraulic Control System Major Components

Electro/Hydraulic Control System Major Components

Hydraulic Power Unit (HPU)

Master Control Station (MCS)

Electrical Power Unit (EPU)

Uninterruptible Power Supply (UPS)

Topside Umbilical Termination Assembly (TUTA)

Subsea Umbilical

Umbilical Termination Unit (UTA)

Subsea Distribution Unit (SDU)

Flying Leads

Subsea Control Module (SCM or Pod)

Hydraulic Power Unit (HPU)

Master Control Station (MCS)

Electrical Power Unit (EPU)

Uninterruptible Power Supply (UPS)

Topside Umbilical Termination Assembly (TUTA)

Subsea Umbilical



Flying Leads

Subsea Control Module (SCM or Pod)


53

Hydraulic Power Unit (HPU)Hydraulic Power Unit (HPU)

l Provides system hydraulic

pressure

l Stores control fluid energy

l Supplies clean hydraulic fluid

l Regulates supply pressure

l Sends status information to the

MCS

l Allows remote or local control

l Provides system hydraulic

pressure

l Stores control fluid energy

l Supplies clean hydraulic fluid

l Regulates supply pressure

l Sends status information to the

MCS

l Allows remote or local control


54

Master Control Station (MCS)Master Control Station (MCS)

l Operator Control Station

l Supplies and monitors subsea power

l Sends and receives signals via the SCM

l Allows operator intervention

l Provides interface with platform control system

l Operator Control Station

l Supplies and monitors subsea power

l Sends and receives signals via the SCM

l Allows operator intervention

l Provides interface with platform control system


55

Subsea Control PodSubsea Control Pod

l Subsea control center

l Executes commands from the surface

l Features

- Must be fully retrievable

- Receives and sends signals to MCS

- Tracks internal status and transmits to the MCS

- Functions subsea valves

- Monitors subsea sensors

- Re-configuration from topside

l May operate 18 24 hydraulic functions

l May monitor 8 10 remote sensor inputs

l Subsea control center

l Executes commands from the surface

l Features

- Must be fully retrievable

- Receives and sends signals to MCS

- Tracks internal status and transmits to the MCS

- Functions subsea valves

- Monitors subsea sensors

- Re-configuration from topside

l May operate 18 24 hydraulic functions

l May monitor 8 10 remote sensor inputs


56

Subsea UmbilicalsSubsea Umbilicals

l Provides link between surface (operator) and subsea

equipment

l Supplies hydraulic fluid to operate subsea valves and chokes

l Supplies electrical power to operate subsea electronics

l Transmits electronic signals to execute operational commands subsea

l Returns electronic data to the surface from subsea instrumentation

l Provides link between surface (operator) and subsea

equipment

l Supplies hydraulic fluid to operate subsea valves and chokes

l Supplies electrical power to operate subsea electronics

l Transmits electronic signals to execute operational commands subsea

l Returns electronic data to the surface from subsea instrumentation


57

Subsea UmbilicalsSubsea Umbilicals

l Very many types/sizes/configurations/materials

l Main factors effecting design:

- Water depth - Chemical compatibility

- Tie-back type - Flow rates

- Internal pressures - Size of field

- Tie-back length - Service life

- Installation methods

l Very many types/sizes/configurations/materials

l Main factors effecting design:

- Water depth - Chemical compatibility

- Tie-back type - Flow rates

- Internal pressures - Size of field

- Tie-back length - Service life

- Installation methods


58

Subsea Umbilical TypesSubsea Umbilical Types

Types

l Hydraulic Umbilicals

l Electrical Electric Umbilicals

l Electro-Hydraulic Umbilicals

Construction

l Thermoplastic Tubes Umbilicals

l Steel Tube Umbilicals

New Configurations

l Integrated Service Umbilicals (ISU)

l Integrated Production Umbilicals (IPU)

Types

l Hydraulic Umbilicals

l Electrical Electric Umbilicals

l Electro-Hydraulic Umbilicals

Construction

l Thermoplastic Tubes Umbilicals

l Steel Tube Umbilicals

New Configurations

l Integrated Service Umbilicals (ISU)

l Integrated Production Umbilicals (IPU)


59

Direct or Piloted Hydraulic UmbilicalDirect or Piloted Hydraulic Umbilical

l Simple

- Short tiebacks

- Steel tube or hose

l All hydraulic systems

l Simple

- Short tiebacks

- Steel tube or hose

l All hydraulic systems

8

10

3 2

6

7

5

1

129

4

11


60

Electro-Hydraulic UmbilicalElectro-Hydraulic Umbilical

l Complex

- Electrical power pairs

- Electrical signal pairs

- HP hydraulic supply- hose or tube

- LP hydraulic supply- hose or tube

l Most Common Type

- Deep water applications

- Long offsets

l Complex

- Electrical power pairs

- Electrical signal pairs

- HP hydraulic supply- hose or tube

- LP hydraulic supply- hose or tube

l Most Common Type

- Deep water applications

- Long offsets


61

Subsea UmbilicalSubsea Umbilical

Design Considerations:l Water depthl Tie-back typel Tie-back lengthl Service lifel Installationl Chemical compatibilityl Flow ratesl Internal pressuresl Size of field

Design Considerations:l Water depthl Tie-back typel Tie-back lengthl Service lifel Installationl Chemical compatibilityl Flow ratesl Internal pressuresl Size of field


62

Umbilical TerminationsUmbilical Terminations


l Provides the subsea termination for

the umbilical

l Can be the subsea distribution point

for hydraulic fluid, electrical power,

electronic signals, and injection

chemicals

l Provides an interface for flying leads

or SDUs

l Can be retrieved for maintenance


l Provides the subsea termination for

the umbilical

l Can be the subsea distribution point

for hydraulic fluid, electrical power,

electronic signals, and injection

chemicals

l Provides an interface for flying leads

or SDUs



63

Subsea DistributionSubsea Distribution

Flying Leads

l Connects UTA or SDU to subsea

trees and manifolds

l Provides distribution of hydraulic

fluid, electrical power, electronic

signals, and injection chemicals to

subsea equipment


l May be high collapse resistant

thermoplastic or steel tube

configuration

Flying Leads

l Connects UTA or SDU to subsea

trees and manifolds

l Provides distribution of hydraulic

fluid, electrical power, electronic

signals, and injection chemicals to

subsea equipment


l May be high collapse resistant

thermoplastic or steel tube

configuration


64

Subsea DistributionSubsea Distribution


l Provides distribution of hydraulic fluid,

electrical power, electronic signals, and

injection chemicals

l Provides interface for flying leads

l Can be an isolation point for supplies


l Can be reconfigured subsea


l Provides distribution of hydraulic fluid,

electrical power, electronic signals, and

injection chemicals

l Provides interface for flying leads

l Can be an isolation point for supplies


l Can be reconfigured subsea

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