Page 372 - Drilling Technology in Nontechnical Language

INDEX 363

M Mohs scale, 231l
monobore completion, 90, 91
magma, 3 monomers, 159
magnetic multishot survey, 189 montmorillonite, 158–159
magnetic resonance imaging (MRI), 235 moonspool, 117
magnetic single shot survey, 189 mud
makeup chain, 139 aerated, 157, 163–164
makeup tongs, 139 dispersed, 156, 157, 158–159
mast, 55 drilling, 8
master bushing, 134, 135 engineer, 286, 351
material safety data sheet (MSDS), 300 foamed, 157, 164
maximum allowable annular surface hydrostatic pressure on ROP, 148
pressure (MAASP), 70 invert oil emulsion, 157, 161–162
measured depth (MD), 41, 101 logger, 351
measurement while drilling (MWD) logging, 232–233
tools, 99–100, 101, 191, 249 oil, 157, 161–162
mechanical tools, 243–245 removal, 206–207
medivac, 112 rheology, 167–168
metamorphic rocks, 2 solids content effect on ROP, 148
metamorphosis, 2 spud, 59, 305–306
microresistivity tools, 240 tank, 127–128
mill unweighted, 305–306

flat-bottomed, 325 well-returned oil on, 230
tooth bits, 141, 142 mud chemical properties
milling junk, 325 corrosion of downhole steel
mineral attributes components, 171

acid test, 231 hydrogen sulfide-related problems,
cementation, 231 172

cleavage, 230–231 mud filtrate and reservoir damage,
color, 230 171
crystal shapes and form, 230 overview, 170
fluorescence, 232 reactive shales, 170

fractures, 232 salts, 170–171

hardness, 231 mud classifications
luster, 230 aerated and foamed muds, 157,
roundness, 231 163–164
saltiness, 231 air drilling, or air as circulating
sorting, 231 medium, 157, 163

specific gravity (weight), 232 dispersed muds, 156, 157, 158–159

sphericity, 231 drilling fluid basic, 156–164
swelling properties, 231 nondispersed muds, 156, 159–160
transparency/translucency, 230 oil muds and invert oil emulsion
minimum curvature method, 101 muds, 157, 161–162
misruns, 238 solids-free brines, 156, 161
mixed-layer clay, 158 mud physical properties
moderate losses, 303 density, 165–166

Modular Dynamics Tester (MDT), 239 fluid loss, 166–167

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