ideal normal sondeigneous rockimmersed sedmientaryimmersionimpenetrabilityimpermeableimpermeable rockimpregnated sandimpregnation depositimpression blockimpulse inclinometerimpulse neutron neutron loggingin situ porosityinclined anticlineinclined foldinclined holeinclined oil water contactinclined pipeindependent driveindex wellindirect flushingindistinct cleavageindividual pump injectiorr systemindividual pumping unitindividual transmission of the rotary tableinduced flowinduced potential logginginduction loginduction loggingindulation between layersindustrial diamondinferior water horizoninfilling drillinginfilling wellinfiltrated zoneinfiltration areainflatable packreinflection of a bedinflow performanceinfrared detectorinfrared distance measuring equipmentingerss of waterinhibited mudinhibitorinitial dipinitial fieldinitial gelinitial out putinitial permeabilityinitial pressure