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Pump Impeller Types

TheĀ pump stagesĀ are of a fully enclosed curved vane design, whose maximum efficiency is a function of impeller types and designs….

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ESP: Pump Stage

AĀ ā€œ PumpĀ Stage ā€Ā consists of anĀ impeller, diffuser and thrust washers.Ā As shown by the following figure, the impellers rotate with the shaft…

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Compression Pump vs. Floater Pump

There are mainly two designs of electrical submersible pump stages widely used by ESPā€™s service companies:Ā  Fixed impeller or compression…

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ESP: Gas handling device

GasĀ  handlingĀ  devicesĀ  mayĀ  beĀ  aĀ  betterĀ  alternativeĀ  forĀ  wellsĀ  proneĀ  toĀ  highĀ  freeĀ  gas, slugging, foams and emulsions.Ā These are…

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ESP cable

As shown in the figure below, the main cable consists of three conductor wires extending from the top of the…

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Cable Conductors

The AC current is carried from the surface to the motor using either copper or aluminum cable conductors. For ESP…

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Cable Insulation

As per API RP11S5, cable insulation isolates the electrical potential between conductors and other conducting materials. Insulation also minimizes leakage…

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Cable Jackets

As per API RP11S5, cable jackets are protective coverings used to mechanically shield the insulation from the downhole environment. The…

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Braids and Coverings

As per API RP11 S5, supplementary layers of materials, named:Ā braids andĀ coverings, are used to guarantee a specific mechanical performance characteristics….

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Cable Armor

As per API RP11S5, cable armor is the outer covering of the cable which provides mechanical protection during installation and…

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Introduction to transformer: How it works?

The transformer is used to convert the incoming voltage at the location to the correct voltage (for the submersible motor…

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Variable Frequency Drive Basics

In this article, Variable Frequency Drive (also, named: Variable Speed Drive) basics are presented in a simple and easy way…