petrolum

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University of Tripoli
Department of Petroleum Engineering
Pet. Engineering Seminar – PE520
Bit design
Prepared By:
Abdulrahman ezzedin alznati ID: 22170958
Course Supervisors:
Dr. Hayat
Spring-2022

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List of Contents
Introduction
Types of bit
Bit classification
Bit design
Bit performance
Bit Grading

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Introduction

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Types of bit

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What is ESP ?
• Electrical submersible pump systems are probably best known as effective artificial lift
method Of pumping production fluids to the surface.

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ESP-Surface Components
• The Electric Power Supply ( High Line or
Generator(.
• The Electric Transformer.
• The Control Switchboard(Motor
controller).
• The Junction(Vent)Box.
• The Well Head Assembly.

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ESP-SubSurface Components
Electric motor .
Protector (seal secion).
Pump intake or gas separator.
Power cable.

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How the ESP-Unit works ?
 When the ESP is started it draws the required voltage from the source
This powers the motor and thus generates pump rotation.
 As the fluid comes into the well through the perforations it passes by the motor
and into the pump. This fluid flowing past the motor brings about a natural
cooling process, critical for long and efficient motor life. The fluid then enters
the intake and is taken into the pump.
 Each stage (impeller/diffuser combination) adds pressure or head to the fluid at
a given rate. The fluid will build up enough pressure as it reaches the top of the
pump to lift it to the surface and into the separator or flow line.

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ESP-System Limitations

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ESP-System Application

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Advantages Of ESP Pump
 Suitable (Adaptable) for all Wells With above 5” Casing and high water cut.
 Minor Surface Equipment Needs.
 Simple to design, operate and low maintenance .
 Can be used in horizontal and deviated wells.
 High efficiency Over 1000 BPD.

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Dis-advantages Of ESP Pump
• Only applicable with high voltage electric power.
• Repair of ESP equipment in oilfield conditions is difficult. Faulty equipment must
be sent to the manufacturer’s repair
• Gas, sand and solids production are restrict capacity and operating efficiency.
• Not suitable to deep and high temperature oil reservoirs.
• Costly to install ESP systems have higher horsepower,

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