Back to results
US 6,049,509 AGranted
Method of processing seismic data to obtain the travel time curve
AssigneeGeco A.S.
InventorsLars Sonneland, Oyvind Yrke, Per Ola Tennebo
Life of this patent
Estimating the term…
Abstract
A plurality of seismic traces are arranged in order of increasing of feet and features therein are analyzed so as to identify corresponding features in each of the curves. The travel time to each of the features is derived in order to extract an actual travel time curve as a function of offset.
Claims26
A method of processing seismic data traces assigned to a common reflection point, comprising
- analysing the seismic data traces to determine similar features therein relating to a reflection of seismic energy within a medium from a first reflector, and
- ordering those features with respect to at least offset so as to calculate an actual travel time surface of the seismic energy reflected from the first reflector corrected for variations in a velocity of propagation of the seismic energy.
A method for identifying a seismic energy travel time surface using a program that causes a computer to perform the steps of:
- analyzing pre-stack seismic data to select similar features therein relating to a reflection of seismic energy within a medium from a first reflector;
- identifying travel times associated with said similar features;
- and
- ordering said travel times with respect to offset and at least one other parameter to calculate an actual travel time surface associated with said first reflector corrected for variations in a velocity of propagation of the seismic energy.
1 more element
A method of processing pre-stack seismic data comprising the steps of:
- sorting pre-stack seismic data into any array of cells;
- selecting similar features within pe-stack seismic data that relate to a reflection of seismic energy within a medium from a first reflector using one or more seed points having seed point locations, said selecting step examining seismic data occurring within a neighborhood of said seed point locations to locate similar seismic signals using a comparison technique;
- identifying travel times associated with said selected similar features;
- ordering said travel times with respect to offset and common reflection point position to calculate an actual travel time surface associated with said first reflector corrected for variations in a velocity of propagation of the seismic energy;
- and
- displaying said travel time surface.
3 more elements
Dependencies are inferred from the claim text.