CA2239609A1 - Simulation gridding method and apparatus including a structured areal gridder adapted for use by a reservoir simulator - Google Patents

Simulation gridding method and apparatus including a structured areal gridder adapted for use by a reservoir simulator

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Publication number
CA2239609A1
CA2239609A1 CA2239609A CA2239609A CA2239609A1 CA 2239609 A1 CA2239609 A1 CA 2239609A1 CA 2239609 A CA2239609 A CA 2239609A CA 2239609 A CA2239609 A CA 2239609A CA 2239609 A1 CA2239609 A1 CA 2239609A1
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CA
Canada
Prior art keywords
grid
structured
gridder
flogrid
areal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2239609A
Other languages
French (fr)
Other versions
CA2239609C (en
Inventor
Christopher Leonard Farmer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schlumberger Canada Ltd
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Schlumberger Canada Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GBGB9713244.3A external-priority patent/GB9713244D0/en
Priority claimed from GB9727288A external-priority patent/GB2326747B/en
Application filed by Schlumberger Canada Ltd filed Critical Schlumberger Canada Ltd
Publication of CA2239609A1 publication Critical patent/CA2239609A1/en
Application granted granted Critical
Publication of CA2239609C publication Critical patent/CA2239609C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/28—Processing seismic data, e.g. analysis, for interpretation, for correction
    • G01V1/282—Application of seismic models, synthetic seismograms
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V2210/00—Details of seismic processing or analysis
    • G01V2210/60—Analysis
    • G01V2210/66—Subsurface modeling

Abstract

A "Flogrid" Simulation Gridding Program is disclosed which includes a Flogrid "structured gridder". Input data is loaded into a Flogrid reservoir data store. The results generated by the reservoir data store are provided to the Flogrid reservoir framework. The reservoir framework is comprised of a structural model and a property model. The structural model will construct 3D structural models and the property model will create and edit properties.
A Flogrid upgridder enables the user to group layers within a fine scale model into coarse layers, The results generated by the property model are input to the Flogrid "structured gridder" of this invention. The Flogrid "structured gridder" includes a "structured areal gridder" and a "block gridder". The "structured areal gridder" will build an "areal grid" on an uppermost horizon of an earth formation by performing the following steps:
(1) building a boundary enclosing one or more fault intersection lines on the horizon, and building a triangulation that absorbs the boundary and the faults; (2) building a vector field on the triangulation; (3) building a web of control lines and additional lines inside the boundary which have a direction that corresponds to the direction of the vector field on the triangulation, thereby producing an "areal grid"; and (4) post-processing the "areal grid" so that the control lines and additional lines are equi-spaced or smoothly distributed. The "block gridder" of the "structured gridder" will drop "coordinate lines" down from the nodes of the "areal grid" to complete the construction of a three dimensional "structured grid". The "structured gridder" provides the "structured grid" to a Flogrid upscaler which samples specified properties within each grid block of the structured grid and performs appropriate averaging to assign a representative grid block property to each grid block of the structured grid, thereby producing a "simulation grid". A reservoir simulator will receive the "simulation grid" and generate a set of "simulation results" which are displayed on a 3D Viewer for observation by a workstation operator.
CA002239609A 1997-06-23 1998-06-04 Simulation gridding method and apparatus including a structured areal gridder adapted for use by a reservoir simulator Expired - Lifetime CA2239609C (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
GB9713244.3 1997-06-23
GBGB9713244.3A GB9713244D0 (en) 1997-06-23 1997-06-23 Flogrid
GB9722115.4 1997-10-20
GBGB9722115.4A GB9722115D0 (en) 1997-06-23 1997-10-20 Simulation gridding method and apparatus including a structured arreal gridder adapted for use by a reservoir simulator
GB9727288.4 1997-12-24
GB9727288A GB2326747B (en) 1997-06-23 1997-12-24 Seismic simulation methods and apparatus

Publications (2)

Publication Number Publication Date
CA2239609A1 true CA2239609A1 (en) 1998-12-23
CA2239609C CA2239609C (en) 2000-06-13

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Application Number Title Priority Date Filing Date
CA002239609A Expired - Lifetime CA2239609C (en) 1997-06-23 1998-06-04 Simulation gridding method and apparatus including a structured areal gridder adapted for use by a reservoir simulator

Country Status (4)

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US (1) US6106561A (en)
CA (1) CA2239609C (en)
FR (1) FR2765007B1 (en)
NO (1) NO326419B1 (en)

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