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AssigneeGeoQuest, a division of Schlumberger
InventorsKermit E. Graf, Apostol T. Vassilev
Estimating the term…
An automatic, non-artificially extended, fault surface based horizon modeling method and apparatus produces a final faulted horizon model which is a three dimensional representation of a faulted earth formation including all the horizons and all the faults in response to seismic data, well log data, and fault surfaces and relationships data. The horizon modeling apparatus produces the final faulted horizon model by filtering input horizon data and removing bad (wrong-sided) data points. This is accomplished by: (a) computing intersections between each horizon and each fault that intersects the horizon, (b) assessing the quality of each intersection, (c) filtering in the vicinity of the intersection by decreasing the slope between the intersecting fault and its respective horizon, (d) generating a horizon surface and reassessing their quality, (e) reintroducing the eliminated data points between the fault and the horizon, (f) re-filtering the reintroduced data points, (g) generating an initial faulted horizon model, (h) generating a set of final fault locations, and (i) generating a final faulted horizon model.
A device adapted for storing instructions, said instructions adapted to be executed by a processor of a workstation, said workstation adapted to receive data including horizon data representing one or more horizons in an earth formation and fault data representing one or more faults intersecting at least some of said horizons, said instructions, when executed by said processor of said workstation, conducting a process comprising the steps of:
A method of determining an accurate estimate of underground deposits of hydrocarbon in an earth formation, comprising the steps of:
Dependencies are inferred from the claim text.