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?

Ensuring compatibility with surface production facilities Signup and view all the answers

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

Water treaters Signup and view all the answers

What is the role of artificial lifts in well management?

To enhance the flow of hydrocarbons to the surface Signup and view all the answers

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

Separators Signup and view all the answers

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

To control flow restrictions from the well Signup and view all the answers

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

To collect production from multiple wells into a common line Signup and view all the answers

Which component is essential at a wellhead to control production?

Choke Signup and view all the answers

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

To provide a backup in case of adjustable choke failure Signup and view all the answers

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

It provides electrical and hydraulic control to subsea systems Signup and view all the answers

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

Use a positive choke in series with an adjustable choke Signup and view all the answers

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

Automatic shut-down valve Signup and view all the answers

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

Ensuring compatibility with existing well components Signup and view all the answers

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

They limit flow rate to manage the production output Signup and view all the answers

What is the maximum operating depth for a plunger lift?

17,000 ft TVD Signup and view all the answers

Which artificial lift system has excellent gas handling capabilities?

Gas lift Signup and view all the answers

What type of servicing is typically used for hydraulic lifts?

Hydraulic or wireline Signup and view all the answers

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

250 °F Signup and view all the answers

Which artificial lift system can handle solids the best?

Progressing cavity pump Signup and view all the answers

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

<blockquote> 15 oAPI </blockquote> Signup and view all the answers

Which lift system requires a compressor as its prime mover?

Electric submersible pump Signup and view all the answers

What is the primary servicing method for a plunger lift?

Wireline or workover rig Signup and view all the answers

Which artificial lift system has the poorest gas handling?

Electric submersible pump Signup and view all the answers

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

15,000 ft TVD Signup and view all the answers

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.