VALVOLE DI CONTROLLO E INTERCETTAZIONE, SISTEMIDI AZIONAMENTO, DISCHI DI ROTTURA E DISPOSITIVI DI

SICUREZZA UTILIZZATI NELL’INDUSTRIA DI PROCESSO

Milano, 18 Aprile 2018Auditorio TECNIMONT

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Out-of-the-box HIPPSfor Oil & Gas Wellheads

Patrick S. Flanders, P.E.VP Business DevelopmentATV HIPPS

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Presenter

• Patrick Flanders is a Consultant, ISA Fellow and inventornamed on more than 50 international patents. Patrick has35 years of oil and gas experience including SaudiAramco, Shell, Amoco, and Getty Oil Company. He servesas a member of API 14C, ISA S84, and S96.

• Patrick is currently the VP of Business Development withATV HIPPS.

Your companylogo – no largerthan 2”x3.5” maygo here

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Outline

• PSF “life cycle” design approach.• Out-of-the-box examples of wellhead HIPPS.• Questions.

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Background

• HIPPS is an acronym for High Integrity Pressure ProtectionSystems.

• International Standards/API/ASME/IEC define risk based andprescriptive design and testing requirements.

• The PSF Life cycle approach includes HIPPS testing andperformance verification.

HIPPS is a design alternative that removes thesource of overpressure from underrateddownstream equipment.

Saudi Aramco: Company General Use

CompellingReason to useHIPPS?

CompellingReason to useHIPPS?

IPLDesign

RiskStudy

PerformanceVerification andTracking

FunctionalTesting

FAT/SAT/Commissioning

OperationalConstraints

TestingProcedure

ProcessSafetyTime

UpdateDesign (MOC)Proposed

Application

ComponentSelection

Will HIPPS withother IPL’s meetrisk reductiontargets and PST?

ATV HIPPS integration is more than component selection.

DESIGN

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Verify installedHIPPS per DesignDocuments

Process Safety Function (PSF) Approach

Deliverables• Risk Study• Design• Simulation• Functional

TestProcedure

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Out-of-the-box wellhead HIPPS examples.

Design:• Risk Reduction Target.• SIL/PFD.• Architecture.• Equipment Selection.• Test Interval.• PST Simulation.

Verification:• Failure rates.• Architecture.• Test Procedure.• Test Interval.• Installed HRT.• Installed Risk

Reduction.

Let’s see how architecture, equipment selection, andtest interval play a role in real world examples.

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Simplified equations for different architectures..

What factors impact the PFD (risk reduction)?

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Example 1 – Offshore ESP Production Platform.

What IPL’s are present? Where are the sensors?Where are the final elements?

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Electric Submersible Pump HIPPS.

Architecture, device failure rate, and test intervalall impact the PFD. How are the sensors voted?

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Testing HIPPS Sensors

2oo3 voting, 100 year failure rate, will reach SIL 3risk reduction with a 1 year test. But what if thesensors “installed” failure rate is 25 years?

1-90065

Example 2 - Offshore Gas HIPPS.

Operations requires architecture that allows testing withoutinterrupting production.

WellheadS/D system

PSHH

LL

PtA

PtB

PtC

Safety LogicSolver

ZVSpecBreakValve

2600 psi MAWPANSI 1500 lb

SSV

SSSV

ZV2A

8” flowline6500 MAWP

ANSI 10,000 lb

ZV2B

ZV1A

8” flowline6500 MAWP

ANSI 10,000 lb

ZV1B

WV

WV

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Selection and testing of final elements.

With a ZV failure rate of 25 years, we need to testevery 2 years to reach SIL 2. But what if more wellsare added that produce to a common header and SIL3 risk reduction is required at each well?

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Example 3 – Onshore oil HIPPS.

What other IPL is present? What architectures wereused? Where is the spec break and the choke valve?

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Mechanical 1oo2 HIPPS – onshore oil.

Skid mounted, fully self-contained, interchangeable.Suited for wells with no power.

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Functional testing.

What dangerous systematic faults may exist?

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PSF HIPPS life cycle design approach.

Different HIPPS, common function … protect theflowline from the wellhead shut-in pressure.

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ATV HIPPS integration offerscost effective and safesolutions.

Thank You.