Patent ID: 11906696
Assignee: LANDMARK GRAPHICS CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A computer-implemented method of modeling petroleum reservoir properties, the method comprising:
analyzing, by a computer system, an initial set of conditioning data relating to geological properties of a reservoir formation;
generating, by the computer system, a tiered hierarchy of geological elements within the reservoir formation at different geological scales, based on the analysis;
categorizing, by the computer system, the geological elements at each of the different geological scales in the tiered hierarchy;
defining, by the computer system, spatial boundaries between the categorized geological elements for a first geological scale selected from the geological scales in the tiered hierarchy, wherein defining the spatial boundaries includes connecting a plurality of data points with one or more vectors;
generating, by the computer system, a gridless point-vector model of the reservoir formation, based on the spatial boundaries defined for the first geological scale in the tiered hierarchy, wherein the gridless point-vector model is at least one of a two-dimensional (2D) model or a three-dimensional (3D) model of the reservoir formation generated in a vector graphics format with a first set of connected vectors representing contact boundaries between the categorized geological elements at the first geological scale in the tiered hierarchy;
obtaining, by the computer system, additional conditioning data for modeling the geological properties of the reservoir formation at a second geological scale in the tiered hierarchy;
adjusting, by the computer system, the spatial boundaries between the categorized geological elements for the second geological scale in the tiered hierarchy, based on the additional conditioning data;
updating, by the computer system, the gridless point-vector model of the reservoir formation, based on the adjusted spatial boundaries, wherein the updated gridless point-vector model includes a second set of connected vectors representing the contact boundaries between the categorized geological elements at the second geological scale while preserving the first set of connected vectors representing the contact boundaries at the first geological scale;
estimating, by the computer system, petroleum reserves of the reservoir formation based on the updated gridless point-vector model; and
performing one or more wellsite operations for the reservoir formation, based on the estimated petroleum reserves.