Patent Document ID: 4316250
Application ID: 06094596
Patent Status: 1

Claim One:
1. In the art of well logging, a process for converting well logging signals which comprise records of the amplitude of subsurface characteristics versus depth in a borehole into a map of the dips of one or more subsurface earth formation features comprising the machine-implemented steps of: a. utilizing well logging signals derived from respective passes of investigating devices along the wall of a borehole through a subsurface formation to produce signals determined by the likely displacements between the respective reflections of respective subsurface features on said well logging signals in at least two different depth spans in the borehole; b. producing a map record which conforms to a plane transverse to the borehole axis and contains a number of map line representations the position of each of which on the map record conforms to a range of dips consistent with a respect one of said displacement signals; c. wherein said displacement signals relate to respective borehole depths within a selected depth interval of the borehole which is small as compared to the depth of the entire borehole; and d. wherein a predominant locus of intersections of such line representations on the map record determines a likely dip of a subsurface feature which is in the borehole depth interval to which said depth displacement signals correspond.