Presentation Slides - SPE WA

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TartanGrid types for SimulationTartan + LGRIrregularGridding increasingly requires pre-processors-Largely moved away from the engineers control- Some interest in unstructured grids ( eg voronoi)- Most Filed simulation done using cartesian type grids- Material Balance doesn’t require sophisticated grids-Tradeoff accuracy vs spatial representation- Grid Orientation once considered important- Sensitivity of results to grid size ?- Choice of grid often boils down to a “beauty contest’- Ideal: Tradeoffs need to be considered up front.CTSOR 8 Pty of xxLtd
Grid Design is seldom Simple ……Textbooks often provide clear cut guidelines whereasreality isn’t quite so simple ……Telltale sign – grid design chosen to honor feature that turn out to beirrelevant – yet artefacts are introduced that make completing the projectmore difficultCTSOR 9 Pty of xxLtd
Page 1 and 2: Simulation ?Per K. CoatsCTSOR 1 Pty
Page 3 and 4: Preamble• JPT magazine 1980, 1991
Page 5 and 6: Practical Reservoir Simulation -DAT
Page 7: Reservoir Simulation :Reservoir Sim
Page 11 and 12: Shot across the bow:From Larry Lake
Page 13 and 14: Simulation Hardware ..... Have PC
Page 15 and 16: SYSTEM based models -> often make u
Page 17 and 18: Types of UsersTakeaway ( Personal S
Page 19 and 20: 4. Reservoir Simulation and Field d
Page 21 and 22: Example:Existing waterflood1. NFA -
Page 23 and 24: Sometimes - we stumble.Here is a li
Page 25 and 26: 4. Greenfield (cont)Greenfield cont
Page 27 and 28: 5. Reservoir SimulationPro’s• R
Page 29 and 30: 7. State of the Art• Uncertainty
Page 31 and 32: Reservoirs modelled at the 100’s
Page 33 and 34: Relative Permeability remains a poo
Page 35 and 36: Well known quote:Models are “fals
Page 37 and 38: CTSOR 37 Pty of xxLtd
Page 39 and 40: HM Difficulties with faults SPE 868
Page 41: Selected Reading1. Larry Lake. Mode

Presentation Slides - SPE WA

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