COILED TUBING handbook -Schlumberger 连续油管手册 1996

olimitthepressurements,itmaybenecessarytoheatthefluid,e.g.,whereinasystemtoapresetmaximumbydivertingsomeorhigh-viscosityoilshavetobewarmedtoreducethealloftheflowtothehydraulicfluidreservoir.viscosityincoldclimates.Theexchangermayuseforcedairasacoolantor,monly,waterwillbecirculatedthroughtheexchangertocool(orheat)thefluid.CLOSEOPENINSIDETRACTIONPRESSUREDRAINAIPSUPPLYPRESSUREENGINEEMERGENCYSTOPSTOPON30GPMOFFPUMPON60GPMOFFPUMPTUBINGWEIGHTINDICATOROFFTHROTTLECIRCULATINGPRESSUREWELLHEADPRESSUREREELBRAKEAIRHORNPRIORITYPRESSUREINJECTORDIRECTIONALSchlumberger2,000PSIMAXCONTROLVALVEPILOTPRESSUREDowellREELPRESSUREININJECTORCHAINLUBRICATIONOUTINJECTORINJECTORMOTORMOTORPRESSUREPRESSUREADJUSTREELPRESSUREREELTUBINGINJECTORADJUSTLUBRICATIONCONTROLLEVELWINDREELCONTROLOVERRIDEFigure12.Controlconsole(right)