Designation:D6167−11StandardGuideforConductingBoreholeGeophysicalLogging:MechanicalCaliper1ThisstandardisissuedunderthefixeddesignationD6167;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thisguidecoversthegeneralproceduresnecessarytoconductcaliperloggingofboreholes,wells,accesstubes,caissons,orshafts(hereafterreferredasboreholes)ascom-monlyappliedtogeologic,engineering,groundwater,andenvironmental(hereafterreferredasgeotechnical)investiga-tions.Caliperloggingformineralorpetroleumexplorationanddevelopmentareexcluded.1.1.1Thisguideoffersanorganizedcollectionofinforma-tionoraseriesofoptionsanddoesnotrecommendaspecificcourseofaction.Thisdocumentcannotreplaceeducationorexperienceandshouldbeusedinconjunctionwithprofessionaljudgment.Notallaspectsofthisguidemaybeapplicableinallcircumstances.ThisASTMstandardisnotintendedtorepre-sentorreplacethestandardofcarebywhichtheadequacyofagivenprofessionalservicemustbejudged,norshouldthisdocumentbeappliedwithoutconsiderationofaproject’smanyuniqueaspects.Theword“Standard”inthetitleofthisdocumentmeansonlythatthedocumenthasbeenapprovedthroughtheASTMconsensusprocess.1.2Thisguidedefinesacaliperlogasarecordofboreholediameterwithdepth.1.2.1Caliperlogsareessentialintheinterpretationofgeophysicallogssincetheycanbesignificantlyaffectedbyboreholediameter.1.2.2Caliperlogsarecommonlyusedtomeasureboreholediameter,shape,roughness,andstability;calculateboreholevolume;provideinformationonboreholeconstruction;anddelineatelithologiccontacts,fractures,andsolutioncavitiesandotheropenings.1.2.2.1Borehole-diameterinformationisessentialforcal-culationofvolumetricratefromflowmeterlogs.1.2.2.2Caliperlogsprovideusefulinformationforboreholecompletionandtesting.1.2.2.3Caliperlogsareusedtolocatetheoptimumplace-mentofinflatablepackersforbore...
