Subsea Development Concept Quiz
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Questions and Answers

What is one of the primary functions of a subsea manifold?

  • To stabilize condensate
  • To separate oil from gas
  • To treat produced water
  • To manage flow rates from multiple wells (correct)

Which component is crucial for controlling fluid flow in a wellhead?

  • Gas dehydrator
  • Lease automatic custody transfer
  • Acid gas treater
  • Choke valve (correct)

In a Christmas tree configuration, what is the purpose of the valves?

  • To control the flow of oil and gas (correct)
  • To stabilize condensate pressure
  • To manage separation processes
  • To maintain water levels in storage

What is a key feature of subsea hardware integration?

<p>Ensuring compatibility with surface production facilities (D)</p> Signup and view all the answers

Which storage facility is primarily used for water treatment in oil and gas processing?

<p>Water treaters (A)</p> Signup and view all the answers

What is the role of artificial lifts in well management?

<p>To enhance the flow of hydrocarbons to the surface (A)</p> Signup and view all the answers

Which component is directly involved in the separation of oil and gas?

<p>Separators (D)</p> Signup and view all the answers

What is the key function of a choke valve in the production system?

<p>To control flow restrictions from the well (B)</p> Signup and view all the answers

What is the primary function of a manifold in subsea development?

<p>To collect production from multiple wells into a common line (C)</p> Signup and view all the answers

Which component is essential at a wellhead to control production?

<p>Choke (C)</p> Signup and view all the answers

What is the role of a positive choke at a wellhead?

<p>To provide a backup in case of adjustable choke failure (C)</p> Signup and view all the answers

In subsea hardware integration, what is the significance of an umbilical?

<p>It provides electrical and hydraulic control to subsea systems (C)</p> Signup and view all the answers

What is a common practice when high upstream pressure is detected at the wellhead?

<p>Use a positive choke in series with an adjustable choke (C)</p> Signup and view all the answers

Which of the following is an integral feature of the wellhead for maintenance purposes?

<p>Automatic shut-down valve (C)</p> Signup and view all the answers

During the fabrication of subsea manifolds, what is a key consideration?

<p>Ensuring compatibility with existing well components (D)</p> Signup and view all the answers

How do chokes function in regulating well production when upstream pressure is excessive?

<p>They limit flow rate to manage the production output (C)</p> Signup and view all the answers

What is the maximum operating depth for a plunger lift?

<p>17,000 ft TVD (B)</p> Signup and view all the answers

Which artificial lift system has excellent gas handling capabilities?

<p>Gas lift (B)</p> Signup and view all the answers

What type of servicing is typically used for hydraulic lifts?

<p>Hydraulic or wireline (B)</p> Signup and view all the answers

What is the maximum operating temperature for a progressing cavity pump?

<p>250 °F (D)</p> Signup and view all the answers

Which artificial lift system can handle solids the best?

<p>Progressing cavity pump (A)</p> Signup and view all the answers

What is the ideal fluid gravity for using a gas lift system?

<blockquote> <p>15 oAPI (D)</p> </blockquote> Signup and view all the answers

Which lift system requires a compressor as its prime mover?

<p>Electric submersible pump (B)</p> Signup and view all the answers

What is the primary servicing method for a plunger lift?

<p>Wireline or workover rig (B)</p> Signup and view all the answers

Which artificial lift system has the poorest gas handling?

<p>Electric submersible pump (C)</p> Signup and view all the answers

What is commonly the maximum operating depth for a hydraulic lift?

<p>15,000 ft TVD (C)</p> Signup and view all the answers

Flashcards

Subsea Manifold

Combines production from multiple wells into a single flowline.

Wet Tree

Separates fluids at the seabed.

Flowline

Pipeline for fluids from seabed to surface.

Umbilical

Cables & pipes for control & power to subsea.

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Wellhead

Connection point between wellbore and surface.

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Choke

Regulates well fluid flow.

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Block Valve

Isolates sections of the well.

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Automatic Shut-down Valve

Quickly shuts off production in emergency.

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Artificial Lift System

Increases production from low-pressure wells.

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Sucker Rod Pump

High-volume, high gravity production.

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Progressing Cavity Pump

Low viscosity, high flow rate.

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Gas Lift

Best for gas handling and offshore use.

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Plunger Lift

High fluid density, low production rate.

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Hydraulic Lift

High fluid gravity and wellbore deviation.

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Electric Submersible Pump

High flow rates, long-life operations.

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Separators

Separate oil, gas, and water phases.

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Condensate Stabilization

Stabilizes condensate by removing dissolved gas.

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Acid Gas Treater

Removes acid gases (H2S, CO2) from fluids.

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Oil Treaters

Treat oil to meet quality standards.

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Water Treaters

Treat water to meet quality standards.

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Pumps & Compressors

Enhances fluid flow, optimizes pressure.

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Gas Dehydrator

Removes water vapor from natural gas.

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Study Notes

Surface Facilities - Subsea Development Concept

  • Subsea hardware is used for the production of oil and gas in offshore environments.
  • Subsea manifolds are used for commingling production from two or more wells into a common pipeline.

Subsea Hardware Components:

  • Manifold: A structure used for combining production from multiple wells into a single flowline.
  • Wet Tree: A system that separates fluids at the seabed.
  • Flowline: A pipeline that transports fluids from the seabed to the surface processing facilities.
  • Umbilical: A bundle of cables and pipes that provides control and power to subsea equipment.

Wellhead Components

  • Wellheads are the point of connection between the wellbore and surface facilities.
  • Wellhead components can include:
    • Chokes: Devices that regulate the flow of fluids from the well.
    • Block valves: Used for isolating sections of the well for maintenance.
    • Automatic shut-down valve: Quickly interrupts production in emergencies.

Gathering Systems

  • Fluids produced from wells are usually sent through flowlines and manifolds to surface processing facilities.

Surface Facilities - Production Support Facilities

  • Artificial lift systems are used to increase production from wells with low pressure.
  • Examples of artificial lift systems:
    • Sucker Rod Pump
    • Progressing Cavity Pump
    • Gas Lift
    • Plunger Lift
    • Hydraulic Lift
    • Electric Submersible Pump

Separators

  • Separate different phases of produced fluids (oil, gas, and water)

Condensate Stabilization

  • Stabilize condensate by removing dissolved gas.

Acid Gas Treater

  • Removes acid gases (H2S, CO2) from produced fluids

Oil Treaters & Water Treaters

  • Treat oil and water to meet quality specifications.

Pumps & Compressors

  • Used to enhance fluid flow and optimize pressure.

Gas Dehydrator

  • Removes water vapor from natural gas.

Artificial Lift System Criteria

  • Sucker Rod Pump: Suitable for high-volume production with high fluid gravity.
  • Progressing Cavity Pump: Best choice for low viscosity fluids and high flow rates.
  • Gas Lift: Excellent for gas handling, suited for offshore use.
  • Plunger Lift: Suitable for wells with high fluid density and low production rates.
  • Hydraulic Lift: Suitable for wells with high fluid gravity and large wellbore deviation.
  • Electric Submersible Pump: Best suited for high flow rates, long-life operations.

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Description

Test your knowledge on subsea hardware and wellhead components used in offshore oil and gas production. This quiz covers essential structures such as manifolds, flowlines, and wellhead components, crucial for understanding subsea facilities. Dive deep into the specifics of subsea operations and enhance your expertise.

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