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Frequently asked questions

What are carbon fiber pipes or tubulars for oil and gas wells?

Carbon fiber pipes or tubulars are advanced composite materials used in the oil and gas industry for well construction and production. These pipes are made from layers of carbon fiber reinforced with polymers, resulting in high-strength, corrosion-resistant, and lightweight tubing.

What is the maximum temperature that Extender can safely operate in for long term? 

The service temperature of Extender is up to 135 C. 

What advantages do carbon fiber pipes offer over traditional steel pipes?

Carbon fiber pipes offer benefits such as superior corrosion resistance, higher strength-to-weight ratio, reduced maintenance costs, and improved fatigue resistance. They also minimize the risk of scale buildup and can extend the lifespan of wells.

Where are carbon fiber pipes typically used in oil and gas operations?

Carbon fiber pipes are often used in environments with aggressive fluids and corrosive gases. They find applications in production tubing, casing strings, and liners.

Does the tubular bond well with cement?

yes, there have been done study showing that the cement bonds well to the composite surface. One relevant paper is SPE-178729-STU.

How do carbon fiber pipes resist corrosion?

Carbon fiber pipes do not corrode like traditional steel pipes. The composite material is inherently resistant to chemical attack from acids, alkalis, and other corrosive substances present in oil and gas wells.

Are carbon fiber pipes suitable for deep offshore drilling?

Yes, carbon fiber pipes are particularly well-suited for deep offshore drilling due to their lightweight nature and corrosion resistance. They help reduce the overall weight of the well, making installation and maintenance more manageable in offshore environments.

Can carbon fiber pipes handle pressure conditions?

Yes, carbon fiber pipes are designed to withstand pressure conditions commonly encountered in oil and gas wells. Their structural integrity and resistance to fatigue contribute to their ability to handle these demanding environments.

How are carbon fiber pipes installed and connected in wells?

Carbon fiber pipes are installed using methods similar to traditional steel pipes. They can be threaded or coupled using specialized connectors designed to accommodate the composite material.

Do carbon fiber pipes require special handling during installation?

No special handling is required for the carbon fiber pipes

Can carbon fiber pipes be used in sour gas environments?

Yes, carbon fiber pipes can be engineered to withstand sour gas environments by using appropriate resin systems that provide resistance to hydrogen sulfide (H2S) and other corrosive gases.

How do carbon fiber pipes contribute to well integrity and longevity?

Carbon fiber pipes' resistance to corrosion and fatigue helps maintain well integrity over time, reducing the need for costly interventions and replacements. They can contribute to extending the well's productive life.

How are carbon fiber pipes tested and certified for oil and gas applications?

Carbon fiber pipes undergo rigorous testing to ensure compliance with industry standards and regulations. They are subjected to mechanical, chemical, and structural tests to verify their performance and safety in oil and gas environments.

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