Chap. 11] 



GEOPHYSICAL WP^LL TESTING 



859 



Fig. 11-29. Location of top of cement collar by temperature measurements (after 



'0 2 4 d 8 10 12 U 16 18 20 22 24 26 28 



fiapsed Time - Dai/s 



Fig. 11-30. Temperature rise during setting time of various cements (after Savage). 



