Method for updating stratigraphic model of sedimentary basin based on measurements

A stratigraphic model, stratigraphic technology, applied in the field of geothermal energy or underground energy storage, depositional process modeling
CN112987086AInactive Publication Date: 2021-06-18INST FR DU PETROLE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INST FR DU PETROLE
Publication Date
2021-06-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to a method for updating a stratigraphic model according to measurements performed in a basin. The method comprises steps of: i) determining at least a first spatial distribution of the values of an attribute representative of the basin stratigraphy, and applying a classification method for converting the first spatial distribution to a first classified image; ii) performing a stratigraphic simulation with first parameter values of the simulation, deducing therefrom a second spatial distribution of the values of the attribute and applying the same classification method identically to determine a second classified image; iii) determining a distribution of local dissimilarities between the first and second classified images, and modifying the values of at least one of the stratigraphic simulation parameters to minimize an objective function formed from at least the local dissimilarity distribution; and iv) updating the stratigraphic model by performing at least one stratigraphic simulation with the modified simulation parameter values.
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Description

technical field

[0001] The present invention relates to the field of exploration and exploitation of oil or geological gas reservoir sites. The invention also relates to the field of new energy sources, such as geothermal energy or underground energy storage. In general, the present invention can be used in any field where it is desired to characterize the geometry and properties of the sedimentary rocks that make up the subsoil.

[0002] Petroleum exploration is the search for oil and gas reservoirs within sedimentary basins. Understanding the principles of hydrocarbon genesis and its connection to the subsurface geological history has allowed the development of methods for assessing the hydrocarbon potential of sedimentary basins. A general procedure for assessing the hydrocarbon potential of a sedimentary basin includes predictions of the hydrocarbon potential of a sedimentary basin based on measured data (e.g., outcrop analysis, seismic surveys, drilling data) associated...

Claims

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