WellFlo. Feature Presentation Weatherford. All rights reserved.

Transcription

1 WellFlo Feature Presentation

2 Wellflo Nodal Analysis Software Reservoir

3 Nodal Analysis Outflow Inflow 2

4 Key Features Production and Injection wells for all reservoir types Black Oil, Condensate, Volatile Oil and Dry Gas Vertical and Horizontal Choice of Black Oil PVT Correlations and Equation of State Based Compositional PVT with Tuning Functionality Inflow Performance Relationship (IPR) Models Vogel, Fetkovich, Normalized Pseudo-Pressures, etc Choice of Flow Correlations for Pressure Drop Calculations Beggs and Brill, Duns and Ros, OLGAS, etc Flow Assurance Hydrate, Wax and Asphaltene

5 WellFlo: Tuning Flow Correlations OLGAS : Mechanistic Model Tuning IPR Tuning Multiple Flow Gradient Survey Datasets Simultaneous Tuning of Multiple Flow Correlations Multiple Production Well Test Datasets IPR model tuning using one or more test data sets Reservoir Pressure Permeability Skin Vogel Coefficient Productivity Index (J)

6 WellFlo : Gas Lift and ESP Design Database of Gas Lift Valves, Pumps and Motors Performance Analysis Troubleshooting Advanced Gas Lift Valve Modelling and Optimisation

7 2006 Weatherford. All rights reserved. Horizontal Well

8 Equation of State Based Compositional PVT PVTFlex TM : PVT Software Application Fluid Data Pre-Processing Plus Fraction Characterization Including Pseudo Component Generation Common Fluid Description Mixing of Fluids Choice of Equations of State Including Peng Robinson and SRK (with Peneloux Volume Shifts) Tuning of EoS using typical lab data CCE, CVD, DL, Separator Data Multi-fluid multi-experiment tuning algorithm based on non-linear regression Tuning Parameters Different weights to different Experiments 2006 Weatherford. All rights reserved.

9 Flow Assurance Calculations Alliance with Infochem Ltd, UK Hydrate, Wax and Asphaltene modules available in their Multiflash Software Customer base : Around the world including many multi-national companies Implementation Seam-less Integration with Engineering Applications No need to copy & paste data to and from another application Available for Compositional as well as Black oil PVT Black oil PVT data is translated to compositional form In-situ fluid composition is used for the calculations Easy analysis above and below the gas injection point 8

10 PVTflex : Flow Assurance Calculations Evaluate possibility of hydrate formation in the well. Simulated Pressure & Temperature Profile For Monthly Production Well Test using Wellflo 9

11 Hydrate Curve and PT Profile Hydrate Region Can this hydrate formation avoided? 10

12 Hydrate Inhibitor Management Hydrate Region with Inhibitor 25 vol % Methanol Choice of Industry Standard Inhibitors Available for Analysis Methanol Ethanol MEG DEG TEG 11

13 WellFlo: PCP and Jet Pumps PCP Operating Point Analysis Jet Pump Analysis Design List of all Suitable Pump combinations

14 PCP: Performance Curve

15 Jet Pump : Design Functionality

16 Well Performance Server Wellflo Integration ReO RFC i-do Matbal MS Excel LOWIS Open Interface Layer WPS Wellflo Calculation Engine Wellflo Graphic User Interface (.NET Technology) 15

17 Case Study Operator : ONGC (one of the major operators from India) Field : Heera (Offshore of Mumbai) 5 Processing Platforms + 14 Remote Satellite Wellhead Platforms 120 Wells Naturally Flowing Gas lifted Total Production Oil: ~ 50,000 BPD Gas Oil Ratio: 120 m 3 /m 3 Water Cut: 55% SPE : Presented in SPE AP Conf in Sept Weatherford. All rights reserved. Slide 16

18 Project Objectives Build Wellflo Models for every well in the field Calibrate Well Models Perform Lift Optimization using Wellflo Knowledge Transfer (WellFlo) Model Update and Workflow Processes 2006 Weatherford. All rights reserved. Slide 17

19 Well Modeling Study : Results Gas Lift Redesign / Optimization potential: Lift Gain (~100+BOPD) Potential Well 22 Candidates with more than 50 BOPD uplift candidates require only gas lift rate optimization Oil Gain (Stb/d) candidates for gas lift redesign 12 candidates with potential gain of more than 100 BOPD (top priority) 0 HC-5 HSA-2# HD-10 HC-3 HB-12 HF-10# HSB-2 Well Name HT-10 HC-2 HSB-5 HSB-1 HSA Weatherford. All rights reserved. Slide 18

20 WellFlo Customers