insoluble residue, colors and symbols, 



93 

 insoluble residues, description of, 81-86 

 insoluble residues, use of, 86-89 

 insoluble terminology, 81 

 interpretive logs, 42 

 Ireland, H. A., 75, 869 

 isofacies maps, 486-494 

 isolith maps, 485, 486 

 isometric projection, 512-515 

 isopach maps, 450, 468-479 



jet-bit economics, 659-662 



jet bits, 653 



Johnson, George W., 779, 870 



K 



Kent, Harry C, 677, 870 

 Klinkenberg effect, 240 

 Koch, William M., 695, 871 



Lakeside No. 70 cement, 61, 104 



Landua, H. L., 711, 882 



Laterolog, 306-311 



LeRoy, L. W., 439, 872 



Levorsen, A. I., 9, 871 



limestone, age determination, 200, 201 



limestone glow curves, 188-193 



limestone porosity, from velocity log, 



416 

 lithium, 262 

 lithofacies, 65 

 lithofacies-data sheet, 485 

 lithofacies maps, 450 

 lithologic log, example, 47 

 lithology, from velocity log, 413 

 log abbreviations, 58 

 log strip heading, 46 

 longitudinal wave velocities, 560 

 lost circulation, 727 

 Low, Julian W., 17, 453, 872 



M 



Madison limestone glow curve, 187 



magnesium ions, 262 



magnetic (and gravity) effects of 



subsurface bodies, 585, 597 

 magnetic declination, 546 

 magnetic susceptibility, 427 

 magnetic susceptibility logs, 431-434 

 magnetic well logging, 427 

 magnetometer, airborne, 607-611 

 Magnolia logger, 409-413 

 manganese, 263 

 Mangold, George B., 119, 873 

 map drafting, 525-530 

 map reproduction 524, 525 

 market value, 795, 796 



Martinez, S. J., 395, 873 

 McClellan, Hugh, 531, 874 

 Messer evaporation technique, 246 

 metamorphic changes, 67 

 microbiological methods, 629-632 

 MicroLaterolog, 312-316 

 MicroLog, 293-298 

 micropaleontological analysis, 203 

 mineral identification, X-ray, 164-172 

 Minimag, 430 

 Moore, Carl A., 141, 874 

 moving-interface surveys, 398, 399 

 mud and cuttings logging, 357 

 mud, drilling, 715-733 

 mud filtration, 274 



N 



nitric and nitrous ions, 260, 261 



O'Connor, J. B., 665, 875 



oil, electron-microscope studies, 147, 



148 

 oil-base mud, 726 

 oil-immersion method of mineral 



identification, 72 

 oil-tests, well samples, 40 

 oil-water contacts, 245 

 organization chart, executive, 817 

 oriented core, 538-541 

 ostracodes, 220, 221 



paleogeographic maps, 450 

 paleogeologic maps, 480-482 

 paleontologic studies, electron 



microscope, 148 

 palinspastic maps, 504 

 Payne, L. L., 637, 875 

 peg models, 505, 506 

 percentage log, 50 

 percentage maps, 485 

 perforating casing 769 

 permeability, 238-240 

 permeability, 746-748 

 permeability, from electric logs, 324-326 

 permeability profile, 395, 396 

 permeability surveying methods, 395 

 petrography, uses, 63-69 

 petroleum exploration, 9, 10 

 petroleum reconnaissance study, 780, 



781 

 pH, drilling fluid, 720 

 phosphate ions, 261 

 photomultiplier tube, 183 

 plant microfossils, 207-216 

 plant spores, 212, 213 

 plastic-flow, drilling fluid, 718 

 plugback, 771 

 polar projection, 532, 533 



885 



