SURFACE PRODUCTION OPERATIONS - INTRODUCTION TO SURFACE PROCESSING2 min - THERMODYNAMIC PHASE EQUILIBRIUM5 min - UNIT OPERATIONS8 min - FLOW OPTIMISATION5.

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Presentation transcript:

SURFACE PRODUCTION OPERATIONS - INTRODUCTION TO SURFACE PROCESSING2 min - THERMODYNAMIC PHASE EQUILIBRIUM5 min - UNIT OPERATIONS8 min - FLOW OPTIMISATION5 min 20 min G.S.RAVI SHANKAR UPES

INTRODUCTION TO SURFACE PROCESSING 2 MINUTES

Topside crude processing

Upstream processing

THERMODYNAMIC PHASE EQUILIBRIUM 5 MINUTES

Reservoir Classification & Phase Behavior Oil Reservoir Gas Reservoir ClassificationAA’BB’CC’DD’EE’ Reservoir typeUnder saturated Black oil Saturated Black oil Retrogade Gas condensate Wet gasDry gas GOR – 32008,000 – 70,00060,000 – 100,000 > 100,000 Bo< 1.2< 2--- API Liquid Vol. Vs Pressure Negligible Oil + Gas + Water Gas + Water Crude colorDarkBrownGreeni sh OrangeWater White Liquid Invisible Gas

P-V-T Phase Behavior Pure component Hydrocarbon Mixture

Adiabatic Flash Equilibrium Vapor - Liquid Vapor – Oil - Water

Algorithm for calculating Mole fractions for Gas – Oil - Water

PROPERTIES & FLOW RATES PROPERTIESFLOWRATES DENSITYOIL STREAM VISCOSITYGAS STREAM THERMAL CONDUCTIVITYWATER STREAM

UNIT OPERATIONS 8 MINUTES Separators Pipelines Pumps Valves Heat Exchangers Process controls

Separators

Design considerations

Design Inputs

Algorithm for Separation design using DSM Droplet Settling Method

Results

Process piping & pumping Valves Heat exchangers

Unit Operations

Process piping and pumping

Liquid Pipeline Design

Gas Pipeline Design

Pump Design

Valve Design

Heat Exchanger Design

FLOW ASSURANCE  Ensure pumps run at Best efficiency point (BEP)

 Flow Modeleling while ensuring proper Flow characteristics for Piping components like Pumps, valves, flowmeters etc.  Type of flow in wells FLOW ASSURANCE

 Valve selection for specific purpose  FO, FC  Initial Half open  Additional flow accommodation for tuning valve +/- 10% to catch slugging

Other Major Considerations For Topside Design  TO MEET CUSTOMER DEMANDS FOR GAS & OIL COMPOSITION (Thermodynamic PVT adjustments)  REDUCE F-F MINIMUM PIPING LENGTHS (Installing efficient Instruments that require least Upstream & Downstream piping lengths)

References Separator – Ken Arnold & Maurice Stewart, Surface production operations Vol I, ISBN:

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