294 



DEEP BOREHOLE SURVEYS AND PROBLEMS 



■ Master borers, 9 



Maximum and minimum thermom- 

 eters, 35 

 McCutcliin, J. A., quoted, 36 

 McLaughlin, R. P., quoted, 52 

 Meine's borehole survey apparatus, 



109 

 Meine's stratameter, 67 

 Meridian, true, 209, 212 

 Messenger weights, 67, 75 

 Methods of surveying, 47, 54 

 MilUken's deviation chart, 277 

 Models of boreholes, 38 

 Moh's hardness scale, 15 

 Mollmann's apparatus, 131 

 Mommertz low temperature bore- 

 hole thermometer, 35 

 Moreni oilfield borehole, 1 

 Mud pressure, 54 

 Multiple photographic devices, 47, 



94 

 Murphy, P. C, and S. A. Judson, 

 cited, 50 



N 



Neighboring boreholes, 17 

 Nolten's apparatus, 98 

 Nomographic methods, 276 

 North German Deep Boring Com- 

 pany's stratameter, 71 

 Nutation, 208 



O 



Oehman's apparatus, 182 

 "Off-vertical" angle, 50, 184, 276, 



279 

 Ohm's law, 232 

 Oil wells surveyed, 5, 6 

 Orientating, of cores, 48, 54 



couphngs, 117, 118, 158, 171 

 Otto-Gothan apparatus, 123 

 Oversetting diamond crowns, 18 

 Owens' apparatus, 193 



Packing rings, 179 

 Payne-Gallwey cited, 182 

 Pendulum methods, 47, 153, 166, 

 168, 173 



Penetration distance from cores, 



etc., 260 

 Penetration point computations, 



246, 262, 264 

 Petersson, Prof. W., cited, 113 

 Phials, 102, 108 

 Photographic methods, 47, 77, 93, 



153, 166, 168, 173 

 Pilot wedges, 184 

 Plans of drill holes, 7, 38, 52, 172, 



192, 202 

 Plastic cast method, 48 

 Plotted surveys of boreholes, 3, 



7, 32, 38, 41, 52, 107, 119, 131, 



162, 186, 199 

 Plotting borehole data, 37 

 Plumb-bob methods, 88, 121, 126, 



128, 134, 136, 137, 141, 148, 



182 

 Plumbing by lantern-basket method, 



41 

 Plumbing cylinder, 187, 216 

 Plummet and magnetic needle meth- 

 ods, 47 

 Plungers, 77, 30, 147, 151 

 Poisson's constant, 234 

 Polarization by Schlumberger, 228 

 Potential method, 226 

 Practical problems with boreholes, 



262 

 Precession, 205, 206 

 Precipitation method, 112 

 Pressure on rods, 18 

 Pressure records, 31 

 Pricker or plunger methods, 48, 



73, 75, 123, 136, 151, 161, 163 

 Problems, 246 

 one borehole, 246 

 three boreholes, 269 

 two boreholes, 265 

 Profiles or sections of boreholes, 37 

 Progress records, 22 

 Progress reports, 10 

 Purposes of boreholes, 50 



R 



Rand boreholes, 2 



Rankine, Dr. A. 0., quoted, 238, 

 243 



