Process Ecology: Engineering Services

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Process Ecology: Value Proposition

Our “ProcessAdvisor”service helps operations engineers in

the Upstream Oil & Gas sector maximize the profitability of

their assets by identifying opportunities for optimization to

reduce OpEx and environmental impacts.

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Examples of Recent Engineering Studies

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Plant rating Identify bottlenecks and strategies to optimize production for existing plants. Example: increased liquid recovery

Can the profitability of the plant be improved? Can it take additional gas sources? What is the optimal gas/liquids balance?

• A plant-wide simulation model coupled with sizing/rating calculations for all major pieces of equipment.• Economics- KPIs

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Flow Assurance

Pipe2a30 KM

Pipe 1140 KM

Compressor Station 1

Pipe2b50 KM

Compressor Station 2

Elevation profile

Condensates may result in slug formation: properly sizing slug catchers requires slug volume and duration

A conservative design would limit the size of the vessel to around 1,000 bbl vs the reported 3,000 bbl

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Hydrate prevention Accurate estimation of Hydrate formation remains a high priority for oil & gas facilities

• Reduced risk of hydrates interfering with production• Reduced CAPEX on insulation • Reduced OPEX by reducing chemical treatment costs

Process Ecology’s Hydrate Extension

• Compare calculation methods, including a “FugacityMethod” tuned for systems at high pressures containing highly non-polar components.• Accurately calculate the effect of methanol and other

inhibitors on hydrate formation. (vs. HYSYS Standard)• Incorporated an electrolyte activity model to account

for the effect of salinity on hydrate formation

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Relief systems Evaluate expected emergency relief scenarios given recent changes to the plant design and operating conditions.

• Upgrade headers to larger diameters at strategic locations.

• Upsize laterals to avoid choked flow.• Greenhouse gases accounting

• Identify components that are above MABP

• Backpressure constraints

• Mach number constraints

• Compressor blocked discharge scenarios

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Gathering systems Evaluate current and future bottlenecks and risk remediation actions such as pipe resizing, parallel branches and network expansion

• Upgrade selected laterals to larger diameters at strategic locations.

• Determine optimal locations for liquids withdrawal

• Pressure drop constraints in the pipelines

• Backpressure constraints

• Erosional velocity constraints

• Compressor power requirements

113 wells253 pipe segments

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Cryogenic applicationsTrack the presence of mercury in the system and predict whether it can precipitate and damage equipment

• Track where mercury may deposit in the plant to protect equipment

• Identify optimal locations for mercury removal in the system

• HYSYS can only handle 3-phase flash

• Developed a customized HYSYS extension to perform a 4-phase flash

• Phase stability test and detection of third liquid phase

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Process hazard assessment Design changes and new operating conditions require a detailed evaluation of the relief systems

Can the relief system handle emergency scenarios? Is the system compliant with regulatory requirements and applicable standards?

• Flare and blowdown systems• A plant-wide flare network

model coupled with a review of PSV sizing • Evaluate emergency scenarios

(ESD)

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For additional information please contact us

alberto@processecology.com403-690-0550

www.processecology.com

CONFIDENTIAL TO PROCESS ECOLOGY INC.

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