Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type
Patent
1997-06-11
2000-01-25
Oda, Christine K.
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Land-reflection type
367 69, 367 68, 367 38, 367 7, 364422, G01V 100
Patent
active
060184973
ABSTRACT:
A Petragrid method and apparatus generates grid cell property information that is adapted for use by a computer simulation apparatus which simulates properties of an earth formation located near one or more wellbores. An interpretation workstation includes at least two software programs stored therein: a first program called "Petragrid" and a second simulation program which is responsive to output data produced from the first "Petragrid" program for generating a set of simulation results. The set of simulation results are displayed on a workstation display monitor of the workstation. The first Petragrid software program will: receive well log and seismic data which indicates the location of each layer of a formation near a wellbore, and then grid each layer of the formation, the grid being comprised of a plurality of cells. The first Petragrid software will then generate more accurate data associated with each cell, such as the transmissibility of well fluid through each cell. The more accurate data for each cell originating from the first Petragrid software will be transmitted to the second simulation program. The second simulation program will respond to the more accurate data for each cell of the grid from the Petragrid software by generating a set of more accurate simulation results for each cell of the grid. The second simulation program will overlay the more accurate simulation result for each cell onto each of the corresponding cells of the grid which is being generated and displayed on the workstation display by the Petragrid software. As a result, the workstation will display each layer of the earth formation where each layer is gridded with a plurality of cells, and each cell has its own particular color which corresponds in numerical value to the particular more accurate simulation result (e.g., pressure or saturation) that corresponds to that cell.
REFERENCES:
patent: 4821164 (1989-04-01), Swanson
patent: 5056066 (1991-10-01), Howard
"Computing Dirichlet tessellations", Bowyer, The Computer Journal, vol. 24, No. 2, 1981.
SPE 25262 "Validation of an Adaptive, Orthogonal, Curvillinear Gridding Procedure for Reservoir Simulation" 1993.
SPE 21235 "Orthogonal Curvillinear Grid generation with Preset Internal Boundaries for Reservoir Simulation", 1991.
SPE 25233 "Reservoir Simulation Grids: opportunities and problems" 1993.
"Distinguished Author Series: Reservoir Simulation: state of the art" Aug. 1982.
"The Simulation of Petroleum Reservoirs" Perspectives in Computing, Spring 1985.
SPE 9369 "Reservoir Geometry with Non-Rectangular Coordinate Grids" 1980.
SPE 15857 "The Construction of curvillinear co-ordinate grid systems for reservoir simulation", 1986.
"Numerical Solution of the Quasilinear Poisson Equation in a Nonuniform Triangle Mesh" by Alan M. Winston, Journal of Computational Physics 2, 149-172 (1967).
"A Control-Volume, Finite-Element Method of Local Mesh Refinement in Thermal Reservoir Simulation" by Peter A. Forsyth, SPE Reservoir Engineering, Nov. 1990.
"Delaunay's Mesh of a Convex Polyhedron in Dimension d Application to Arbitrary Polygedra" by George and Hermeline, International Journal for Numerical Methods in Engineering vol. 33, 975-995 (1992).
"Discretization on unstructured grids for inhomogeneous, anisotropic media, Part I: Derivation of the methods" by Aavatsmark, Barkve, Boe, submitted to SIAM J. Sci. Comput.
"Discretization on unstructured grids for inhomogeneous, anisotropic media, Part II: Discussion and numerical results" by Aavatsmark, Barkve, Boe, submitted to SIAM J. Sci. Comput.
"Interactive Modelling of Multiphase Inflow Performance of Horizontal and Highly Deviated Wells" by Alvestad, Holing, Christoffersen, SPE 27577 (Mar. 1994).
"Finite Volume Discretization of the Fluid Flow Equations on General Perpendicular Bisection Grids" by Amado, Ganzer, Heinemann, Fifth International Forum on Reservoir Simulation, Dec. 1994.
"Two Dimensional Static and Transient Simulation of Mobile Carrier Transport in a Semiconductor" by Cottrell, Buturla, NASECODE--Boole Press Dublin, 1979 Dublin.
"Flexible Gridding Techniques for Coning Studies in Vertical and Horizontal Wells", SPE 25563, Apr. 1993.
SPE 12264 "Nested Factorization" (1983).
"Two and Three-Dimensional Flexible Grids for Reservoir Simulation" by Verma and Aziz, 5th European conference on the Mathematics of Oil Recovery, Sep. 1996.
"Interpretation of Well Block Pressures in Numerical Reservoir Simulation With Nonsquare Grid Blocks and Anisotropic Permeability" by Peaceman, Society of Petroleum Engineers, Jun. 1983.
"Corner Point Geometry in Reservoir Simulation" by Ponting.
"The generation and application of Voronoi (PEBI) grids for simulating well tests in reservoirs with Eclipse", May 1992.
SPE 18854 "Predicting Horizontal/Slanted Well Production by Mathematical Modeling" by Chang, Tham, Mar. 1989.
SPE 37998 "The Generation and Application of K-Orthogonal Grid Systems" Jun. 8-11, 1997.
SPE 15622 "Generalized Transmissiblities for Distorted Grids in Reservoir Simulation" by Hegre, Dalen, Henriquez, Oct. 1986.
"A Triangle Based Mixed Finite Element--Finite Volume Technique for Modeling Two Phase Flow through Porous Media" Durlofsky, Journal for Computational Physics, (1993).
SPE 21224 "Reservoir Simulation With a Control Volume Finite Element Method" By Fung, Feb. 1991.
"Use of Vozonoi Grid in Reservoir Simulation", Society of Petroleum Engineers.
Bouchard John H
GeoQuest
Jolly Anthony
Oda Christine K.
LandOfFree
Method and apparatus for generating more accurate earth formatio does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for generating more accurate earth formatio, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for generating more accurate earth formatio will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2320498