Gulf Pump Guides: Progressing Cavity Pumps, Downhole Pumps and Mudmotors

Gulf Pump Guides: Progressing Cavity Pumps, Downhole Pumps and Mudmotors

1st Edition - May 1, 2005

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  • Authors: Lev Nelik, Jim Brennan
  • eBook ISBN: 9780127999715
  • Paperback ISBN: 9780976511311

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Written by one of the world’s foremost authorities on pumps, this first volume in Gulf Publishing Company’s Gulf Pump Guides series covers the design, application and troubleshooting for progressing cavity pumps, downhole pumps and mudmotors. There is no other volume offering a more comprehensive, easy-to-understand and hands-on coverage of these types of pumps. As they become more and more widely used in the petrochemical industry and other industries, knowledge of their design and application will become increasingly more important for the engineer.

Table of Contents

  • About the Authors



    Nomenclature and Abbreviations


    Chapter 1 Benefits of Progressing Cavity Pumps

    Chapter 2 Three Main Types of Progressing Cavity Machines: PCPs, DHPs, and DHMs

    Chapter 3 Operating Principles of Hydraulic Sections (Rotor/Stator Pairs)

    Chapter 4 Geometry


    Profile Generation

    Single-Lobe (Special Case, Nr = 1, Ns = 2)

    Rotor-to-Stator Fit (Clearance versus Interference)

    Multilobe Case: Fit Calculations

    Single-Lobe (Special Case, Nr = 1, Ns = 2): Fit Calculations

    Core Sizing for Stator Production

    Performance: Operating Characteristics

    How to Obtain Performance Characteristics for a Given Design, versus Designing a Unit for the Specified Desired Performance


    Example 1: Performance Estimate from the Given Measured Geometry

    Example 2: What Happens if a Mismatched Rotor-Stator Pair is Combined?

    Multilobe versus Single-Lobe Geometry: More Performance?

    Chapter 5 Design-Related Considerations

    Key Design Parameters

    Important Ratios

    Variation of Ratios and Their Effect on Performance and Life

    Power Transmission Methods

    Chapter 6 Application Guidelines





    Speed (rpm)

    Pressure and Flow

    Entrained Gas


    Chapter 7 Installation Examples

    Installation Case 1: A PC Pump Maintains Foam Concentration

    Installation Case 2: A Sludge Pumping Problem

    Installation Case 3: A Food Application—Soya Milk Processing

    Installation Case 4: A Sanitary Application at a Bakery

    Installation Case 5: Effluent Treatment

    Installation Case 6: A Storm Water Runoff Application

    Installation Case 7: A Sludge Application

    Installation Case 8: A Sludge Treatment Application

    Installation Case 9: Reliability is Key at a Food Processing Plant

    Installation Case 10: Sewage Treatment at an Airport

    Installation Case 11: Offshore Supply Vessels for Drilling Mud

    Installation Case 12: Main Feed Pump Plus Additives

    Installation Case 13: Vertical Orientation

    Chapter 8 Troubleshooting

    Before You Begin Troubleshooting

    Information Gathering

    Flow Loss or Low Flow

    Loss of Suction

    Low Discharge Pressure

    Excessive Noise or Vibration

    Excessive Power Usage

    Rapid Pump Wear

    PC Components in Service

    Chapter 9 Progressing Cavity Pump Selection and Sizing

    Example 1: Pump Sizing

    Example 2: Pump Sizing

    Metallic Stators

    Chapter 10 Progressing Cavity Pump Startups

    Pipe and Valves

    Foundation, Alignment, and Rotation


    Startup Spares


    Last-Minute Startup Thoughts

    Rotary Pump Startup Checklist

    Chapter 11 Progressing Cavity Pump Overhaul Guide




Product details

  • No. of pages: 214
  • Language: English
  • Copyright: © Gulf Publishing Company 2005
  • Published: May 1, 2005
  • Imprint: Gulf Publishing Company
  • eBook ISBN: 9780127999715
  • Paperback ISBN: 9780976511311

About the Authors

Lev Nelik

Jim Brennan

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