【正文】 nge GC2200 Single Stage Performance RPM 60Hz = 3500 (Sg = 1) 83 V a ri a bl e S pe e d O pe ra t i on0204060801001201400 500 1000 1500 2022 2500 3000 3500 4000 4500 5000Flow (BPD)Head (Feet)6 0 H zOperating Range GC2200 Single Stage Performance RPM 60Hz = 3500 (Sg = 1) 84 Fluid Reservoir ?Normal? RPM 85 Fluid Reservoir Fluid Reservoir ?Normal? RPM Slower RPM 86 Fluid Reservoir Fluid Reservoir Fluid Reservoir ?Normal? RPM Slower RPM Faster RPM 87 V a ri a bl e S pe e d O pe ra t i on0204060801001201400 500 1000 1500 2022 2500 3000 3500 4000 4500 5000Flow (BPD)Head (Feet)6 0 H z88 V a ri a bl e S pe e d O pe ra t i on0204060801001201400 500 1000 1500 2022 2500 3000 3500 4000 4500 5000Flow (BPD)Head (Feet)6 0 H z5 0 H z89 V a ri a bl e S pe e d O pe ra t i on0204060801001201400 500 1000 1500 2022 2500 3000 3500 4000 4500 5000Flow (BPD)Head (Feet)7 0 H z6 0 H z5 0 H z90 Variable Speed Operation ? New Flow Rate = Old Flow (New Hz/Old Hz) ? New Head = Old Head (New Hz/Old Hz)2 “ Affinity Laws” … 60Hz – Operating Range Min flow = 1500bpd 54ft BEP flow = 2200bpd 46ft Max flow = 3000bpd 25ft Min flow = 2022bpd 96ft BEP flow = 2933bpd 82ft Max flow = 4000bpd 44ft 80Hz – Operating Range ? 91 V a ri a bl e S pe e d O pe ra t i on0204060801001201400 500 1000 1500 2022 2500 3000 3500 4000 4500 5000Flow (BPD)Head (Feet)7 0 H z6 0 H z5 0 H z92 V a ri a bl e S pe e d O pe ra t i on0204060801001201400 500 1000 1500 2022 2500 3000 3500 4000 4500 5000Flow (BPD)Head (Feet) 8 0 H z7 0 H z6 0 H z5 0 H z93 V a ri a bl e S pe e d O pe ra t i on0204060801001201400 500 1000 1500 2022 2500 3000 3500 4000 4500 5000Flow (BPD)Head (Feet)9 0 H z8 0 H z7 0 H z6 0 H z5 0 H z4 0 H z3 0 H zTornado Curve Min Flow BEP Flow Max Flow 94 The Gas Separator ? Takes the place of a standard pump intake ? Is used in applications where free gas causes interference with pump performance ? Separates a portion of the free gas from the fluid entering the intake to improve pump performance ? Rotary gas separator types include: – Induced Vortex with passive chamber – Rotating chamber 95 The Gas Separator 96 The Seal Chamber Section ? Is located between the pump and motor ? Transfers the motor torque to the pump shaft ? Isolates (seals) the well fluid from the clean motor oil ? Equalizes the internal unit and wellbore pressure ? Provides area for motor oil expansion volume ? Absorbs the pump shaft thrust load ? The Four “Shuns” expansion, equalization, isolation, amp。電潛泵知識與控制理論培訓(xùn) 湛江 2 Introduction xxx 3 ? 電潛泵應(yīng)用技術(shù)的基礎(chǔ)知識 ? 電潛泵系統(tǒng)構(gòu)成 , 主要設(shè)備的功能和工作原理及其相互間關(guān)系 ? 電泵生產(chǎn)過程中需關(guān)注的參數(shù) , 重點講解表現(xiàn)其工況特征和必須重點監(jiān)測的數(shù)據(jù) ? 各類與電泵相關(guān)的上部完井方式及管串簡介 ? 氣蝕 , 稠油 , 出沙等井況對電泵運行的影響及解決方案 ? 其他與電泵運行壽命相關(guān)的因素 ? 電泵技術(shù)發(fā)展和特殊應(yīng)用 ? 變頻控制的基本理論及地面設(shè)備的整體構(gòu)成 ? 變頻器主要參數(shù)的計算和設(shè)置 ? 諧波應(yīng)對方案和中壓變頻器簡介 ? GCS/ICS 變頻器的專題介紹和初級故障處理 ? 井下實時監(jiān)控技術(shù)的意義及產(chǎn)品介紹 A typical ESP installation 5 ESP System Technology Overview 6 Objective ? Upon letion of this course, you should be able to: Explain the uses for Electrical Submersible Pumps. List the major ponents of an ESP system. Explain the principle of an ESP system. 7 . Centrifugal Pump Gas Separator Seal Section Electric Motor 8 ESP Downhole System The basic ESP downhole system ponents are ... ?The Monitoring System (optional) ?The Power Cable ?The Motor ?The Seal Section ?The Pump 9 Built in Discharge head Tubing screws in here Bolts to the Seal Pump Shaft Built in Intake Pump Housing Rotating Impeller Stationary Diffuser The Pump 10 The Pump ? Hangs from the production tubing ? Lifts the fluid through the tubing to the surface ? Is a multistage centrifugal type ? Is constructed from impellers and diffusers ? Must be sized to match the well production ? Has an intake and discharge that either bolts onto or is threaded into the pump housing ? Normally be set above the perforation for sufficient cooling. 11 LT = Lower Tandem pump ( with built in intake ) The seal bolts on here 12 LT/MT = Lower/Middle Tandem pump Head Shipping Cap If MT (middle tandem) or LT (Lower Tandem) then a flange face is the head of the pump. 13 If Upper Tandem (UT) then a discharge is built into the pump. UT Pump Built in Discharge head 14 Middle Tandem pump Base UT or MT pump Shipping Cap 15 The Bolt on Head The Middle Tandem or Lower Tandem Pump Head 16 Gas separator intake (cut away). May be bolted on to the base of a MT (Middle Tandem) or UT (Upper Tandem) Pump The Seal bolts on here. UT or MT pump bolts on here. 17 Centrifugal ???? 18 Stages stacked on a shaft and pressed in a housing. Centrilift Submersible Pump 19 Rotating (right to left) impellers Stationary diffusers Cutaway of Pump 20 Impeller 21 Pump Stage Hydraulic Design ESP Stage designs fall into one of two hydraulic design categories … Mixed Flow flow path has both axial and radial direction with respect to the pump shaft Radial Flow flow path is generally perpendicular (radial) with respect to the pump shaft 22 Impeller Terminology Impeller Hub Bottom Shrou