Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type
Patent
1991-12-11
1993-08-17
Lobo, Ian J.
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Land-reflection type
367 25, 364422, G01V 140
Patent
active
052375390
ABSTRACT:
A system and method for processing and displaying well log data that provides real time and lag time data combined into a format which can be graphically printed using a printer interface to a computer during the drilling of an oil and gas well. Preselected monitors provide real time data such as weight on bit, mud pump pressure, revolutions per minute of the rotary table (drill string) and the like and lag data such as units of gas, porosity, and percent cut fluor. The monitored information is then processed by a microprocessor into digital real time textual data curves (CRVs) and digital lag textual data (LAG). These data are then processed by a central processing unit (CPU) of the system that automatically merges the CRV and LAG data, checks for completeness of file curve (curve and lag data), picks scales or enters user input scale and normalizes the data based on scale value, enters user comments for display, like change of mud weight, change of scale. The merged and combined curve and lag data create what is referred to as "rock files" which can then be suitably displayed and/or printed. The system provides for an incremental printed or displayed log between preselected well elevations.
REFERENCES:
patent: 4414651 (1983-11-01), Buckner
patent: 4616321 (1986-10-01), Chan
Lobo Ian J.
Peterson Robert C.
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