《电潜泵电缆英》PPT课件.ppt

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1、Initials7/20/2023,Submersible Pump Cable Overview,Initials7/20/2023,INTRODUCTION TO ESP CABLE,Modular design many options,Initials7/20/2023,REDA Production Systems-LAWRENCE,RPS Lawrence is part of the Schlumberger GroupLocated in Lawrence Kansas since 1976Manufacturer of electric power cable and rub

2、ber molded components for ESPsProducer of more ESP cable than any other manufacturerCertified to ISO 9001 Includes All aspects of Cable Manufacturing,Initials7/20/2023,Electrical Submersible Cable,Power is supplied to the electric motor by electric cable.,Power Cable,Initials7/20/2023,Cable Selectio

3、n,Electrical PropertiesPhysical DimensionsEnvironmental ResistanceMechanical StrengthTemperatureHandling Conditions,Initials7/20/2023,Cable Selection,The proper cable size is governed by the amperage,voltage drop,and space available between the tubing collar and casing.,Initials7/20/2023,Cable Selec

4、tion,A range of conductor sizes are available to meet application.requirements.,Initials7/20/2023,Cable Selection,Cables are available in either flat or round configurations.FLATROUND,Initials7/20/2023,Cables can be installed in wells where bottom hole temperature is excess of 300 degrees Fahrenheit

5、.,Cable Selection,Initials7/20/2023,CONDUCTORINSULATIONBARRIER INJECTION TUBE(optional)JACKETARMOR,Cable Components,Initials7/20/2023,SIZEDAMAGE RESISTANCEFLEXIBILITYCOST,Conductor Selection,Initials7/20/2023,ADHESION&STRAND BLOCKING-Downhole Performance-Gas transmission-Gas entrapment/corrosion-Cor

6、ona discharge,Coating/Adhesive,ALLOY COATING-Chemical resistance,Initials7/20/2023,All these calculations are based on extensive research and Finite Element Analysis(FEA)of downhole cable system models,Conductor Size Selection,Initials7/20/2023,TEMPERATUREPRESSURE CHANGESGAS TO OIL RATIO(GOR)CARBON

7、DIOXIDE ATTACKOIL ATTACK,Insulation Selection,Insulation,Initials7/20/2023,Definite melt pointLimited by temperatureEase of processingSimple formulationsThermal failure is often dramatic,THERMOPLASTIC vs.THERMOSET,No melting pointOften higher temperature ratingMore difficult to processComplex formul

8、ationsThermal failure is generally gradual,Polyproylene CoploymerTHERMOPLASTIC,Ethylene Propylene Diene MethyleneTHERMOSET,Initials7/20/2023,Excellent electrical propertiesLow costAvailable in three different colors,POLYPROPYLENE,ADVANTAGES,Excellent resistance to well fluids,Initials7/20/2023,Upper

9、 temperature range,softens at 205F(96C)Subject to crazing in certain environments,POLYPROPYLENE,DISADVANTAGES,Initials7/20/2023,Excellent electrical properties,although higher power losses(DLA)than polypropyleneAvailable in three different colors,EPDM,ADVANTAGES,Excellent high-temperature stability,

10、has been used at up to 550F(288C)in geothermal wells,Initials7/20/2023,Susceptible to mechanical damage at elevated temperatures,EPDM,DISADVANTAGES,Limited well fluid resistance,oil swells EPDM compounds,Initials7/20/2023,3 kV:tested at 20 kV DC,7 kV AC4 kV:tested at 30 kV DC,10 kV AC5 kV:tested at

11、35 kV DC,13 kV AC,Voltage Rating and Selection Criteria,OPERATING VOLTAGEVOLTAGE SPIKES/TRANSIENTSMECHANICAL DAMAGE,Initials7/20/2023,Surface Voltage is higher than motor Voltage(Voltage drop)Energy is required to push current through a cableOhms law;V=I(R+XL)=IrL/A+IXL,Voltage Drop,Initials7/20/202

12、3,Voltage Drop Graph,Initials7/20/2023,TEMPERATURECHEMICAL ENVIRONMENTGASHANDLING,Barrier Selection,Initials7/20/2023,Barrier Types,TEDLAR TAPE-300F(150C)TEFLON FEP EXTRUSION-350F(175C)PROPRIETARY HIGH TEMPERATURE TAPE-400F(205C)LEAD-550F(288C),POLYVINYLEDINE FLUORIDE EXTRUSION-300F(150C),Initials7/

13、20/2023,SUPERIOR HOOP STRENGTHHIGHER TEMPERATURE,TAPE vs.EXTRUDED BARRIER,TAPE ADVANTAGE,EXTRUDED BARRIER ADVANTAGES,FASTER TO PROCESS,Initials7/20/2023,TEMPERATURECHEMICAL ENVIRONMENTGASHANDLING CONDITIONS,Jacket Selection,Jacket,Initials7/20/2023,185F(85C),HIGH DENSITY POLYETHYLENE(HDPE)250F(121C)

14、,NITRILE 1275F(135C),NITRILE 2350F(176C),NITRILE 3350F(176C),EPDM,Jacket Types,Initials7/20/2023,EPDM Rubber,+Oil=,EXCELLENT HIGH TEMPERATURE STABILITY,POOR RESISTANCE TO OIL,Initials7/20/2023,GOOD PHYSICAL PROPERTIESPOOR ELECTRICAL PROPERTIESPOOR RESISTANCE TO WATER,NITRILE Rubber,EXCELLENT RESISTA

15、NCE TO OIL,HARDENS AT TEMPERATURES ABOVE 275F(135C)SLOW DECOMPRESSION RATE,Initials7/20/2023,EPDM&NITRILE Jackets Offer Different Advantages,Initials7/20/2023,DAMAGE RESISTANCEDECOMPRESSION CONTAINMENTCORROSION RESISTANCE,Armor Selection,Initials7/20/2023,HEAVY GALVANIZED STEEL(0.034/0.86mm thick)HE

16、AVY COATING CLASS II GALVANIZED STEELDOUBLE ARMOR(two layers)STAINLESS STEELMONELTWO DIFFERENT ARMOR PROFILES,Armor Types,STANDARD GALVANIZED STEEL(CLASS I)(GSA,0.020/0.51mm&0.025/0.64mm thick),Initials7/20/2023,Armor Profile Types,Flat profile,Standard crown profile interlocked,Initials7/20/2023,RE

17、DA Production SystemsCable Options,Initials7/20/2023,POLYETHYLENE:185F(85C),REDA Production SystemsCable Families,REDALENE:205F(96C),Initials7/20/2023,REDA Production SystemsCable Families,REDAHOT:250-350F(121-177C),REDABLACK:300-400F(149-204C),Initials7/20/2023,REDALEAD:400-450F(203-232C),REDA Prod

18、uction SystemsCable Families,MOTORLEADS:250-450F(121-232C),Initials7/20/2023,FLAT CABLE EXTENSIONS(FCE)(Motorlead Pothead)MOTORLEAD-Typically smaller conductor than power cable,thus runs hotter.-KEOTB-250F(121C)-KELB-450F(232C)-KELTB-450F(232C),Motor Connection Options,Initials7/20/2023,POTHEADS-Tap

19、e-In Pothead-Tape wrapped around individual connector leads inside motor.-Plug-In Pothead-mating block mounted in motor.-Direct Connect Pothead-Power cable attached directly to the Pothead.(Plug-In Type),Motor Connection Options,Initials7/20/2023,Tape-In Pothead vs Plug-In Pothead,Advantages:Most Re

20、liableHighest breakdown strength in industryDisadvantagesLonger installation time on rig floor,Advantages:Ease of installationDisadvantagesLower breakdown strength Not as reliable as Tape-In,Initials7/20/2023,What does#4/1 KEOTB 0.015M5F represent?#4/1#4 AWG Solid conductorK Polyimide(Kapton)primary insulationE EPDM secondary insulationO Nitrile jacketTB Tape(probably Tedlar)&braid0.015 Armor thickness(inches)M Monel armor5 5 kV Voltage rating F Flat cable,Cable Nomenclature,