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1、CirculatingSystemPE3043-FALL/2004-Page1SchematicofExampleRigCirculatingSystemforLiquidDrillingFluidsFig.1.23PE3043-FALL/2004-Page2CirculatingSystemDrillingmudtravels:SteeltanksMudpumpSurfaceconnectionContaminant-removalequipmentSurfaceAnnularBitnozzleBitDrillstringPE3043-FALL/2004-Page3Circulat
2、ingSystemMudpumpMudpitsMud-mixingequipmentContaminant-removalequipmentPE3043-FALL/2004-Page4MudPumpFig.1.25Volumedisplaced(onestroke):PE3043-FALL/2004-Page5MudPumpFig.1.25PE3043-FALL/2004-Page6MudPumpForwardStrokeVolumedisplaced(onestroke):BackwardStrokeVolumedisplaced(onestroke):PE3043-FALL/20
3、04-Page7PumpFactor---duplexTotalvolumedisplacedpercycle(twocylinders)FpiscommonlycalledthepumpfactorPE3043-FALL/2004-Page8PumpFactor---triplexthreecylindersPE3043-FALL/2004-Page9PumpsareratedforHydraulicpowerMaximumpressureMaximumflowratePE3043-FALL/2004-Page10HydraulicPowerUnits:pressure---psi
4、Flowrate---gal/minHydraulicPower----hpPE3043-FALL/2004-Page11Example1.3:Computethepumpfactorinunitsofbarrelsperstrokeforadouble-actingduplexpumphaving:6.5-inchliners--------dL2.5inchrods----------dr18-inchstrokes-------LSavolumetricefficiencyof90%----EVPE3043-FALL/2004-Page12Solution:Foraduplex
5、pump,ConvertingtothefieldunitsFp=1991.2in.3/strokexgal/231in.3xbbl/42gal.=0.2052bbl/strokePE3043-FALL/2004-Page13Computethepumpfactorinunitsofbarrelsperstrokeforasingle-actingtriplexpumpusingthedatasetshowninexample1.3Exercise:PE3043-FALL/2004-Page14Contaminant-RemovingEquipmentShaleshakerHydro
6、cyclonesanddecantingcentrifugesPE3043-FALL/2004-Page15SchematicofhydrocycloneFig.1.28PE3043-FALL/2004-Page16DecantingCentrifugeFig.1.29PE3043-FALL/2004-Page17SchematicofCirculatingSystemforAirDrillingHighstrengthExtremelowpermeabilityPE3043-FALL/2004-Page18RotarySystemSwivelKellyRotarydriveRota
7、rytableDrillpipeDrillcollarsPE3043-FALL/2004-Page19RotarySystemFig.1.33PE3043-FALL/2004-Page20SwivelFig.1.34SupportstheweightofdrillstringPermitsrotationPE3043-FALL/2004-Page21StabilizerPE3043-FALL/2004-Page22CapacityandDisplaceme
