production optimisation & smart standardisation · 2018-11-15 · clump weight xmas tree ssm...

Production Optimisation &Smart Standardisation

Ian Donald – Enpro Subsea

© 2018 Enpro Subsea Limited. Confidential Information. All Rights Reserved. Do not replicate without permission.

Enpro Subsea Overview• Background & experience

Smart Standardisation• Flow Access Modules (FAM)

• Features & Benefits

• Case studies

Production Optimisation• Flow Intervention Services (FIS)

• Features & Benefits

• Case studies

Contents


Established 2011, headquartered in Aberdeen with office in Houston

Patented products for Flow Access Modules, Flow intervention services & Decom

Demonstrable record of delivering fast track projects

Field development group is a multi-discipline team with full suite of projectexecution capabilities in house, including technical assurance and analysis

Experience of executing projects in UK, GoM and West Africa with establishedsupply chain to support

Integrated Management System to ISO accreditation, ISNet & FPAL

Enpro Subsea Background


Enpro Subsea

…. adding life of field strategic flexibility to standard subsea hardware

Future Proof

• USB for adapting technology, ensuring future proofedstrategic agility throughout the life of field

Improve Capital Efficiency

• Provides flexibility and reusability to standard/stock subseahardware without sacrificing functionality

• FAM transforms the capital efficiency of subsea tie backs

• Faster, lower cost projects delivering early first oil

Enhanced Production

• FIS delivers cost effective Hydraulic Intervention

• Maximising production from existing subsea assets


Production optimisation

Standardisation with Flexibility

• Decommissioning of GBSstructures

• OSPAR Annex II Compliance

• Characterisation and removal ofcell contents

• Field Development Engineering

• Integrated Support for opportunity ranking and decision-gate support

• Technical Assurance

• Project Execution, Management & Support

• Provides Life of Field flexibility tostandard subsea hardware

• Retrievable Modules located on thejumper

• Enable project specific technologieswithin FAM

• Field Proven System for Low CostHydraulic Intervention

• Up to 3000m, 15ksi, 30 bbl./min

• Single or Dual Conduit

• Passive & Active disconnect


Multiple projectsField DevelopmentOpportunity RankingProject Management

North SeaAOR decom hardware& offshore services2017

North SeaAOR decom hardware& offshore services2016

vWest AfricaFIS/FAM3x Intervention Hubs2017

West Africa5x SB FAM-Hubs2017

West Africa10x DB FAM-Hubs5x SB FAM-Hubs2017-2020

Gulf of Mexico2x FAM Gooseneck3x FAM Modules2016

Gulf of Mexico8x FAM Hubs8x Metering FAM2017

Gulf of Mexico3x FAM Modules2017

West AfricaFIS5x ops in 20174 x ops in 2018

Gulf of Mexico3x FAM Hubs3x Metering FAM2017

Global Experience


Provides Life of Field flexibility to standard subsea hardware• Retrievable Modules located within the jumper (independently retrievable)

• Enables operator to locate project specific technologies within FAM supporting the use ofStandard Trees & Manifold

• Located at XT or Manifold / PLEM end of rigid or flexible Jumpers


Standard

standard XT

standardmanifold

standard XTwith FAM

standard manifoldwith FAM

Standard Subsea Hardware

Enhanced Subsea Architecture

Re-deployable subsea solutions

FlowThru

Metering Pumping Sampling HIPPSSolids KO Sensors

OEM specific

Erosiondetector

Pre-com DecomP&A

HydraulicIntervention

Metering &intervention

Smart Standardisation


• Multiphase Flow Meter (MPFM)• Water Cut Meter• Acoustic Sand Detector

• Flow Assurance Valve• Chemical Injection• PT Sensors

Case Study 1 - GoM

Drivers

• Complete 4km tieback within 12 months

• Use existing stock tree

• No modifications to existing installed manifold

• Different OEM connector type at either end of tieback Jumper


Case Study 2 - GoM

Drivers

• Operator wants MPFM retrievable independently of rigid Jumpers

• Standardised Hub design for both 10k and 15k manifolds (future proof)

• Flexibility to incorporate latest MPFM spec & integrate legacy MPFM types

Scope

• 11x FAM with MPM Meters

• 10k & 15k Modules

• Manifold Location

• Rigid Jumpers

• FMC KLV8 Connectors


Drivers

• Use proven successful ‘fast track’ model

• By locating project specific technologies within theFAM modules operator was able to use an existing“stock” XT

• Existing FAM relocated as part of field developmentproving the flexible nature of FAM

Scope

• Metering FAM & Flow Assurance FAM

• 10k Modules

• XT & Tie In Skid Location

• Flexible Jumpers

• CVC Connectors

Case Study 3 - GoM


Scope

• 10x Dual Bore FAM Hubs on Production Jumpers

• 5x Single Bore FAM Hubs on Injection Jumpers

• Brown & Green field

• Rigid (insulated) Jumpers with VCS Connectors

Drivers

• Operator wants existing technologies retrievableindependently of rigid Jumpers

• Defer costs – no need to bolt in technologies on dayone of production, can be installed after jumper

• Simplify Jumper fabrication and installation

Case Study 4 - West Africa


Sensor / Measurement - FAM

FAM: Applications

HIPPS FAM

• SIL 3 Retrievable HIPPS module in accordance with API 17O

• Permits capture of high pressure wells using pre-existing lowpressure infrastructure

• Retrievable / Re-deployable – after change in reservoir conditions

• HIPPS trip only shuts in single well

• HIPPS SCM communicates directly to the topside MCS via the subseacomms system.

Studies show that for a short tieback, the net savings in the materialand fabrication of the lower rated flowline offset the incremental costof incorporating a subsea HIPPS.

• Water cut meters

• Erosion detectors

• Corrosion detectors

• Pressure sensors

• Temperature sensors

• Salinity sensor

• pH sensor


Pump - FAM

• Single well pump solution• 400m – 3,000m water depth• Collaboration with pump

vendor

• Compact Footprint• Particle Separation to 150 micron

(Solids Filter Separation)• Holding Capacity limited by weight

Sand KO - FAM

FAM: Applications

Pre-com FAM

• Pig Launcher / Receiver• FAM dewatering module, infield

flowlines• Launch and receipt of dewatering pigs• Proven technology within FAM

• Hydrate Remediation• Methanol placement


Field proven system for Low Cost Hydraulic Intervention

• Configurable to a range of operating criteria

o Depth up to 3,000m / Pressure – up to 15k / Flow Rate – up to 30bbl/min (limited by conduit)

• Compact footprint, minimal deck space and ease of deployment


Flow Intervention Services

Field proven system for low cost hydraulic intervention

Enhance Production Rates (via Acid Stimulation / Scale Squeeze)

Modular System – configurable to a range of operating criteria• depth, pressure and flow rate• interface with any subsea tie in point - FAM hub, tree cap, choke insert, Unitech etc.

Compact design requires minimal deck space and suitable for air freight

Low cost Hydraulic Intervention from a Vessel (no requirement for Rig or LWIV)

Experienced operations team have carried out multiple intervention campaigns



Field proven system suitable for….

Water Treatment Scale Inhibition

Organic & Inorganic Scale Removal

Oil Treatment

Wax Inhibition

Asphaltene

Naphthenate Soap

Gas Treatment Hydrate Remediation

H2S Treatment

Reservoir Stimulation

Matrix Acidization

Chemical Injection

Impairment

Fines Treatment

Other Treatments

Tubing Washes

Flowline Cleaning

Well Control / Kill & Bull Heading

Water Injector Tests



Benefits of Acid Wash / Stimulation

Feature (why do it) Benefit (what it aims to achieve)

Dissolve Calcium Carbonate scales • Restores tubing to former ID• Clean-up well prior to scale squeezes• Retains functionality of safety valves, gas-lift valves and other well

architecture

Removes fines and Iron Sulphidefrom the area being washed

• Sand fines and FeS can lead to reservoir impairment

Stimulation effects in the sandscreens and near wellbore

• Matrix stimulation, removal of acid soluble fines in the near wellboreleading to a production uplift



Feature (why do it) Benefit (what it aims to achieve)

To inhibit Barium Sulphatedeposition (before it forms)

• Keep the near-wellbore, perforated intervals, sand screens andtubing clear of scale build-up

• Prevent deposition in the topsides process• Avoid the possibility of NORM (radioactive scale)• Maintain well PI• Reduce under-deposit corrosion• Reduce microbially influenced corrosion

To inhibit Calcium Carbonatedeposition (before it forms)

• As above• Reduce potential laydown of soft scales, which can balloon off

tubing and block process equipment downstream

Reduce number of future acidwashes

• Reduce risk of corrosion to the wells• Reduce manual handling & exposure to acids• Scale squeeze benefits last longer (proactive not reactive)

Benefits of Scale Squeeze


Project Challenge:

• Deliver Hydraulic Intervention System capable of10+ bbl./min

• System to be suitable for a range of water depths1,000 to 2,000m

• System to interface with single or dual Coiled Tubing

• Topside control functionality required

• System safety features required

• System to interface with existing Tie-in point on XT

FIS: Case Study


• System hardware delivered in 15 weeks

• Compact modular design allowed system to be air-freighted

• Field Proven 1 off 5 well campaign completed 1 off 4 well campaign completed

Project Summary:

Project Sanction to Intervention in 5 months

FIS: Case Study


FIS: Case Study

WA - 2017 Q3 Multi wellrigless campaign

52days

Mobilisation 11Subsea trials 7

Well #1 - Acid stim 10Well #2 - Scale squeeze 6Well #3 - Scale squeeze 4

Well #4 - Scale squeeze 8Well #5 - Scale squeeze 4Demob 2

WA - 2018 Q1 Multi wellrigless campaign

27days

Mobilisation 11Well #2 - Scale squeeze 4Well #2 - Scale squeeze 4

Well #3 - Scale squeeze 3Well #4 - Scale squeeze 3Demob 2

45% reduction in average time per wellAchieved through applying operational efficiencies & experience from 1st campaign


Compositeupper riser(static)

Compositelower riser(dynamic)

Integrated reeler &deployment system

Clump weight

Xmas tree

SSM c/w FSCbarrier valves

ActiveDisconnect Composite

jumper hose

Passiveweak-link

Pumpingspread

Rental FIS: 15k

• Suitable for Single vessel deployment, saves costsand improves uptime/efficiency

• System can interface with Composite Conduit orCoiled Tubing (with composite dynamic & jumper)

• Compatible with wide range of stimulation fluidswithout degradation

• Modular Subsea Safety Module design can beconfigured to suit various subsea interfaces

• Aligned with API 17G & G2

System Specification

Working Pressure 15,000 psi

Water Depth 3,000m

Flow Rate 15 bbl./min

FIS System Overview


Flexible Standardisation………… delivering ENhanced PROduction

For more information please contact: [email protected]

production optimisation & smart standardisation · 2018-11-15 · clump weight xmas tree ssm...

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