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Glossary of Technical Terms Used in Pipeline Construction: EVXT TM (subsea)

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EVXT TM (subsea)

EVXT TM (Subsea): The Enhanced Vertical Tree for Efficient Oil and Gas Production

EVXT TM, short for Enhanced Vertical Tree, is a crucial component in the subsea production system of the Oil and Gas industry. It represents a significant advancement over traditional vertical trees, offering enhanced performance and cost-effectiveness for subsea operations.

What is an EVXT TM?

An EVXT TM is a specialized subsea structure designed to control and manage the flow of oil and gas from the wellhead to the production pipeline. It acts as the central hub for managing the entire production process, including:

  • Wellhead connection: The EVXT TM connects to the wellhead, securing the connection to the producing well.
  • Flow control: It houses various valves and chokes for regulating and controlling the flow of oil and gas.
  • Manifold: It integrates with the production manifold, allowing for the connection of multiple wells to a single pipeline.
  • Instrumentation: The EVXT TM incorporates various sensors and instrumentation for monitoring pressure, flow, and other critical parameters.
  • Control system integration: It interfaces with the subsea control system, enabling remote operation and monitoring of the production process.

Benefits of EVXT TM:

Compared to traditional vertical trees, EVXT TM offers several advantages:

  • Enhanced production capacity: By optimizing flow paths and control mechanisms, EVXT TM enables higher flow rates and production volumes.
  • Reduced operating costs: The EVXT TM's optimized design and improved flow characteristics contribute to lower energy consumption and operational costs.
  • Improved safety and reliability: The robust construction and advanced control systems of the EVXT TM ensure greater safety and reliability, minimizing risks of leaks and other production interruptions.
  • Simplified installation and maintenance: The EVXT TM's modular design and standardized components make installation and maintenance simpler and more efficient.

Applications of EVXT TM:

EVXT TM is particularly beneficial in various subsea scenarios:

  • Deepwater production: The technology excels in deepwater environments, where pressure and temperature fluctuations pose significant challenges.
  • High-pressure/high-temperature (HPHT) wells: The robust construction of the EVXT TM is well-suited for handling the demanding conditions of HPHT wells.
  • Multi-phase production: EVXT TM can efficiently handle the flow of oil, gas, and water simultaneously, maximizing production from challenging wells.
  • Extended well life: The enhanced flow control and optimized design of the EVXT TM contribute to longer well life and sustained production.

Conclusion:

The EVXT TM is a testament to the ongoing innovation in the Oil and Gas industry. Its enhanced performance, cost-effectiveness, and safety features contribute significantly to maximizing production efficiency and profitability in subsea operations. This technology continues to evolve, promising even greater efficiency and sustainability in future subsea production systems.

Test Your Knowledge

EVXT TM Quiz:

Instructions: Choose the best answer for each question.

1. What does EVXT TM stand for?

a) Enhanced Vertical Tree b) Extended Vertical Technology c) Efficient Vertical Tree d) Electronic Vertical Tree

Answer

a) Enhanced Vertical Tree

2. Which of the following is NOT a benefit of using EVXT TM?

a) Improved safety and reliability b) Increased operating costs c) Enhanced production capacity d) Simplified installation and maintenance

Answer

b) Increased operating costs

3. EVXT TM is particularly well-suited for which type of production environment?

a) Onshore production b) Deepwater production c) Shallow water production d) Land-based production

Answer

b) Deepwater production

4. What is the primary function of the EVXT TM?

a) To store oil and gas b) To transport oil and gas to shore c) To control and manage the flow of oil and gas d) To monitor the pressure of oil and gas

Answer

c) To control and manage the flow of oil and gas

5. How does EVXT TM contribute to extended well life?

a) By reducing the amount of oil and gas produced b) By increasing the production pressure c) By optimizing flow control and design d) By using advanced drilling techniques

Answer

c) By optimizing flow control and design

EVXT TM Exercise:

Scenario: You are working on a subsea project involving the installation of an EVXT TM for a deepwater well. You need to consider the key factors that will impact the success of the installation process.

Task: Identify at least three key factors that should be carefully considered during the EVXT TM installation, explaining why they are crucial for a successful project.

Exercice Correction

Here are three key factors to consider during EVXT TM installation:

  • **Water depth and environmental conditions:** Deepwater installations present unique challenges due to pressure, currents, and visibility. Careful planning and specialized equipment are necessary for safe and efficient deployment.
  • **Precise positioning and alignment:** The EVXT TM must be precisely positioned and aligned with the wellhead to ensure a secure connection and optimal flow. This requires advanced subsea positioning systems and meticulous execution.
  • **Integration with existing subsea infrastructure:** The EVXT TM must seamlessly integrate with existing pipelines, manifolds, and control systems. This involves careful planning, compatibility testing, and potentially modifications to the existing infrastructure.

Books

  • Subsea Production Systems: Design, Installation, and Operation by Svein Horn, Terje Hovland, and Odd Magne Nesvåg
  • Subsea Engineering Handbook by Alan J. Chainey
  • Deepwater Development: Technology, Planning and Economics by William G. Cole and Richard A. Young

Articles

  • "Subsea Production Systems: A Review of Recent Developments and Future Trends" by S. S. R. Rao (search for this title on online databases like ScienceDirect, SpringerLink, or Google Scholar)
  • "The Evolution of Subsea Production Systems" by M.J. Jones (search for this title on online databases)
  • Industry magazines: Look for articles related to subsea production trees and equipment in magazines like Oil & Gas Journal, Offshore, Subsea World News, etc.

Online Resources

  • SPE (Society of Petroleum Engineers): The SPE website (spe.org) has a vast library of papers and resources on subsea technologies.
  • ONEPetro: This platform offers a collection of technical papers, presentations, and other resources relevant to oil and gas production.
  • Subsea 7: This company specializes in subsea engineering and construction. Their website may have information on subsea trees and similar technologies.
  • TechnipFMC: Another major player in the subsea industry, their website can offer insights into subsea production systems.

Search Tips

  • Use specific keywords: Instead of "EVXT TM," try searching for "Subsea vertical tree," "subsea production tree," "subsea tree technology," "subsea production system," etc.
  • Combine keywords: You can use variations like "subsea tree benefits," "subsea tree design," "subsea tree applications," etc.
  • Look for company websites: Search for companies that specialize in subsea equipment and solutions, such as Schlumberger, Baker Hughes, Halliburton, etc.
  • Check industry news sources: Websites like Oil & Gas Journal, Offshore, Subsea World News often cover new technologies and innovations in the subsea industry.
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