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Petrographic Image Logging System

PAYNE, C. J., M. R. ULRICH, and G. B. MAXWELL, Mobil Exploration and Producing U.S. Inc., Houston, TX, and J. P. ADAMS,* Advanced Logging Technologies, Beaumont, TX

The Petrographic Image Logging System (PILS) is a logging system-data base for Macintosh computers that allows the merging of traditional wire-line, core, and mud log data with petrographic images. The system is flexible; it allows the user to record, manipulate, and display almost any type of character, graphic, and image information. Character and graphic data are linked and entry in either mode automatically generates the alternate mode. Character/graphic data may include such items as ROP, wire-line log data, interpreted lithologies, ditch cutting lith-percentages, porosity grade and type, grain size, core/DST information, and sample descriptions. Image data may include petrographic and SEM images of cuttings, core, and thin sections. All data are tied to depth. Data are entered q ickly and easily in an interactive manner with a mouse, keyboard, and digitizing tablet or may be imported and immediately autoplotted from a variety of environments via modem, network, or removable disk. Color log displays, including petrographic images, are easily available on CRT or as hardcopy.

The system consists of a petrographic microscope, video camera, Macintosh computer, video framegrabber and digitizing tablet. Hardcopy is scaleable and can be generated by a variety of color printing devices. The software is written in Supertalk, a color superset of the standard Apple Hypercard programming language, Hypertalk. This system is being tested by Mobil in the lab and at the well site. Implementation has provided near "real-time" core and cuttings images from drilling wells to the geologist back at the office.


AAPG Search and Discovery Article #91004 © 1991 AAPG Annual Convention Dallas, Texas, April 7-10, 1991 (2009)