Well Completion Equipment Quiz

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Questions and Answers

Which control line is used to operate the subsurface safety valves (SSVs)?

  • Control panel line
  • Communication line
  • Power line
  • Hydraulic pressure line (correct)

What is the main function of a packer in a well completion process?

  • To provide a seal between production casing and tubing (correct)
  • To regulate the flow of gas lift gas valves
  • To control the operation of the subsurface safety valves
  • To inject chemicals into the well

What happens to the SCSSV (Subsurface safety valve) when there is something wrong with the surface equipment?

  • It starts injecting chemicals
  • It closes automatically (correct)
  • It regulates well pressure
  • It remains open

What keeps the packer open during normal fluid flow in the well?

<p>Control line pressure (A)</p> Signup and view all the answers

Which part of the tubing string is responsible for protection against well pressure and corrosion?

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

What is the primary purpose of gas lift gas valves in a well completion process?

<p>To assist in lifting well liquids to the surface (A)</p> Signup and view all the answers

'Retrievable' and 'Permanent' are types of which component in the well completion process?

<p>'Packers' (B)</p> Signup and view all the answers

'SSSV' stands for:

<p>'Subsurface Safety Valve' (B)</p> Signup and view all the answers

Flashcards

Hydraulic pressure line

Operates subsurface safety valves (SSVs).

Main function of a packer

Provides a seal between production casing and tubing.

SCSSV response to surface equipment failure

It closes automatically.

What keeps the packer open

Control line pressure.

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Protection against well pressure

Packers

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Purpose of gas lift gas valves

To assist in lifting well liquids to the surface.

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'Retrievable' and 'Permanent' types of what?

Packers

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What does 'SSSV' stand for?

'Subsurface Safety Valve'

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Study Notes

Functions of Tubing

  • Used for production
  • Acts as a killing string
  • Used for injection of chemicals
  • Can accommodate gas lift gas valves to assist well liquids to the surface (gas lifting process)

Considerations for Tubing in Completion

  • Tubing strength
  • Tubing connection
  • Tubing movement

Subsurface Safety Valves (SSSV)

  • Installed in the tubing string below or near the surface
  • Controlled by hydraulic pressure through a capillary (control) line connected to a surface control panel
  • Normally closed (failsafe) valve that requires continuous hydraulic pressure to keep it open
  • Remains open during normal fluid flow and closes when surface equipment fails

Packers

  • A device made of metal and rubber that fits around the tubing
  • Provides a seal between the inside of the production casing and outside of the tubing string
  • Must not restrict normal production flow
  • Types of packers: retrievable, isolation, and production (A- Retrievable, B- Permanent)
  • Functions:
    • Protects casing from well pressure and corrosion
    • Used for subsurface well control
    • Used as an anchor for the tubing

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