Figure 4-3. Equipment used in thin-section preparation. Hot plate, cements, abrasive, 

 dispensers, glass plate, and microscope. 



Routine Petrography 



The most useful information in petroleum exploration and exploitation is 

 basic data; an accurate record of the petrography of formations as well as their 

 distribution and structure is becoming mandatory. In solving problems, the 

 more complete and accurate the data, the more reliable are the interpretations 

 drawn from them. Routine petrographic descriptions of thin sections can form 

 a very valuable file, which can be readily and profitably applied to almost any 



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