Application of Multi-scale Curvature in Fault Interpretation of K Oilfield in Bohai Sea
WEI Tiangang
ZHANG Heng
LI Fuqiang
WANG Bo
Abstract：Ascertaining the curvature attributes of fault systems depends on the partial derivative,which is easily disturbed by noise.Therefore,an edge-preserving de-noising filter is used to preprocess seismic data,effectively improving the signal-to-noise ratio and maintaining information on the edge structure.On this basis,multi-scale curvature analysis is realized by using multi-scale operators in a time-frequency-wavenumber domain.This attribute fully considers the complexity of geological structure and fault distribution characteristics.Small-scale curvature attributes can better represent subtle changes in geological structure,which is conducive to avoiding risk faults in the oilfield development phase.Large-scale curvature attributes are conducive to the macro analysis of fault distribution characteristics,which plays an important role in regional exploration.The multi-scale curvature method has been well applied to fault interpretation in the Bohai K Oilfield and has proven beneficial to the drilling of oilfield development wells.
Keywords：EPSsignal-to-noise ratiomarginal structuretime-frequency wave number domainmultiscale curvature
Publication Date：2024-11-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：8( 773-780 )