PVT correlations
- Gas
- Z : Dranchuk, Standing, Beggs & Brill, Hall-Yarborough, Dranchuk & Abou-Kassem
- Viscosity : Lee et al., Carr et al., Lee compositional
- Oil
- Pb & RS : Lasater, Vasquez & Beggs, Standing, Glaso non volatile, Glaso volatile, Lasater-Standing, Petrosky & Farshad, Kuparuk, South brae
- Bo : Standing, Vasquez & Beggs, Glaso, Petrosky & Farshad, Kuparuk, South brae
- Co : Petrosky & Farshad, Vasquez & Beggs
- Viscosity : Beggs & Robinson, Beal
- Water
- Rsw : Katz, Meehan & Ramey, Spivey, Haas, Culberson & McKetta
- Bw : Gould, McCain, Meehan & Ramey, Spivey
- Cw : Dodson & Standing, Osif
- Viscosity : Van-Wingen & Frick, Meehan & Ramey, Helmholtz, Matthews & Russel
Pressure drop correlations - Artep : Liquid-Gas; mechanistic; any angle
- Aziz & Govier : Liquid-Gas; mechanistic; vertical
- Beggs & Brill : Liquid-Gas; empirical; any angle
- Brauner : Liquid-Liquid stratified ; Mechanistic ; Deviated
- Choquette : Liquid-Liquid; empirical; vertical
- Dukler-Eaton : Liquid-Gas; empirical; horizontal
- Duns & Ros : Liquid-Gas; empirical; vertical
- Hagedorn-Brown : Liquid-Gas; empirical; vertical
- Kaya et al : Liquid-Gas; mechanistic; any angle
- Orkiszewski : Liquid-Gas; empirical; vertical
- Petalas & Aziz : Liquid-Gas; mechanistic; any angle
- Stanford : Liquid-Gas & 3-Phase; drift flux; any angle
- Taitel & Dukle : Liquid-Gas; mechanistic; vertical
- Zhang : 3-Phase stratified; mechanistic; deviated
- Baxendell & Thomas : Liquid-Gas ; Empirical ; Vertical
- Chierici et al : Liquid-Gas ; Empirical ; Vertical
- Cornish : Liquid-Gas ; Empirical ; Vertical
- Fancher & Brown : Liquid-Gas ; Empirical ; Vertical
- Gray : Liquid-Gas ; Empirical ; Vertical
- Griffith et al : Liquid-Gas ; Empirical ; Vertical
- Poetmann & Carpenter : Liquid-Gas ; Empirical ; Vertical
- Reinickle & al : Liquid-Gas ; Empirical ; Vertical
- Hasan & Kabir : Liquid-Liquid ; Mechanistic ; Deviated
Ecrin contains an extensive range of well, reservoir and
boundary models. In addition Ecrin links dynamically
to user built models or to an additional and extensive
‘external model’ library that is available for download from
this website.
Built-in analytical models - Wellbore models
- No storage
- Constant storage
- Changing storage (Fair, Hegeman)
- Well models
- Finite radius
- Fracture - uniform flux
- Fracture - infinite conductivity
- Fracture - finite conductivity
- Horizonta
- Limited entry
- Slanted fully penetrating
- Slanted partially penetrating
- Time dependent
- Skin models
- Constant
- Rate dependant
- Time dependant
- Reservoir models
- Homogeneous
- 2-porosity P.S.S.
- 2-porosity transient sphere
- 2-porosity transient slab
- 2-layer with X-flow
- Radial composite
- Linear composite
- Horizontal anisotropy
- Boundary models
- Infinite
- Single sealing fault
- Single constant pressure fault
- Closed circle
- Constant pressure circle
- 2 parallel faults
- 2 intersecting faults with any angle rectangle
- Composite rectangle
- Leaky fault
- Multilayer
- Commingled production
- Layered pi
- Formation Testers
- Packer-probe interference with storage and Skin
- Probe-probe interference (0, 90, 180 °) with storage and Skin
External analytical models - 2-layers with X-flow & radial composite
- 2-layers with X-flow & 2-porosity
- 2-porosity & radial composite
- 2-porosity with Skin at matrix blocks
- 3-porosity (1 fissure and 2 matrices)
- 3-layers with X-flow
- 4-layers with X-flow
- 4-layers with X-flow in closed system
- Conductive fault
- Horizontal well with horizontal anisotropy
- Horizontal well with identical fractures
- Horizontal well with non identical fractures
- Multi-lateral well
- Well in a reservoir pinchout
- Radial composite 3 zones in an infinite or closed reservoir
- Radial composite 4 zones in an infinite or closed reservoir
- Limited height fracture
Built-in numerical models -
User defined reservoir contour in the X-Y plane,
unlimited number of segments
- Any contour segment sealed or at constant pressure
-
User defined faults inside the contour with individual
leakage factor
- True double-porosity model (duplication of grids)
-
Composite regions with associated diffusivity,
storativity and double-porosity model
- Horizontal anisotropy
- Varying thickness and porosity fields
- Conductive faults
- Multiple wells
- Numerical well upscaling
- Fractured well with finite / infinite conductivity
- Limited entry vertical well with vertical anisotropy
- Fractured well with limited entry and vertical anisotropy
- Horizontal well with vertical anisotropy
- Horizontal well intersecting multiple fractures
- Changing storage (Saphir only)
- Time-dependent and rate-dependent Skin
- Saphir and Topaze : slightly compressible liquid
- Non-Darcy flow for gas (NL)
- 2-phase W-O and W-G (NL)
- 3-phase W-O-G (NL Topaze and Rubis)
- Real gas diffusion (NL)
-
Water influx (NL) : Carter-Tracy, Fetkovich, Pot,
Shiltius, Numerical
-
Multilayer : crossflow, multiwell, partial completion of
the wells
- Horizontal well in multilayer
- Limited entry well in multilayer
- Fractured well in multilayer
- Composite multilayer
- Gas desorption (with or without diffusion)
|
|