Designation:D8037/D8037M−16StandardPracticeforDirectPushHydraulicLoggingforProfilingVariationsofPermeabilityinSoils1ThisstandardisissuedunderthefixeddesignationD8037/D8037M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticedescribesamethodforrapiddelineationofvariationsinformationpermeabilityinthesubsurfaceusinganinjectionloggingtool.Cleanwaterisinjectedfromaportonthesideoftheprobeasitisadvancedatapproximately2cm/sintovirginsoils.Loggingwiththeinjectiontoolistypicallyperformedwithdirectpushequipment,howeverotherdrillingmachinesmaybemodifiedtorunthelogsbydirectpushmethods(forexample,additionofasuitablehammerand/orhydraulicramsystems).Injectionlogsexceeding100ft[30m]depthhavebeenobtained.Directpushmethodsarenotintendedtopenetrateconsolidatedrockandmayencounterrefusalinverydenseformationsorwhencobblesorbouldersareencounteredinthesubsurface.However,injectionlogginghasbeenperformedinsomesemi-consolidatedorsoftforma-tions.1.2Thisstandardpracticedescribeshowtoobtainarealtimeverticallogofinjectionpressureandflowratewithdepth.Thedataobtainedisindicativeofthevariationsofpermeabilityinthesubsurfaceandistypicallyusedtoinferformationlithology.Theperson(s)responsibleforreview,interpretationandapplicationoftheinjectionloggingdatashouldbefamiliarwiththeloggingtechniqueaswellasthesoils,geologyandhydrogeologyoftheareaunderinvestigation.1.3Theinjectionloggingsystemmaybeoperatedwithabuiltinelectricalconductivitysensortoprovideadditionalrealtimeinformationonstratigraphyandisessentialfortargetingtestzones.Othersensors,suchasfluorescencedetectors(PracticeD6187),amembraneinterfaceprobe(PracticeD7352)oraconepenetrationtool(TestMethodD5778)maybeusedinconjunctionwithinjectionloggingtoprovideadditionalinformation.Theuseoftheinjectionloggingtoolinconcertwithanelectr...
