Well Tubular, Coating System and Method for Oilfield Applications

Abstract

A technique facilitates the use of polymer materials in a downhole environment via utilization of a coating that can be applied to the polymer material. The methodology enables formation of a coating that sufficiently bonds with an underlying base structure of polymer material to withstand the harsh environment encountered in a downhole application. Additionally, the coating may utilize reactive chemistries to further protect the polymer material against the ingress of deleterious fluids while located in the downhole environment. Well tubulars formed of coated polymer are also described.

Description

BACKGROUND OF THE INVENTION[0001]Oilfield applications often present challenging operational requirements with respect to equipment used downhole. Requirements of oilfield equipment may include high strength, resistance against chemical attack by harsh well fluids, maintenance of mechanical properties at high temperatures, transparency to nuclear, magnetic, acoustic, and inductive energy, and other requirements. Attempts have been made to use polymer tubular products, which may be fiber reinforced, in oilfield applications, but the challenging operational requirements can limit the effectiveness of these components.[0002]For example, polymer materials can deteriorate when exposed to deleterious well fluids such as water, or other fluids containing compounds that alter the mechanical properties of the polymer materials. Additionally, the high temperatures and other harsh conditions of a wellbore environment can limit the long-term functionality of polymer components in a downhole env...

AI Technical Summary

Benefits of technology

The coating system effectively protects fiber-reinforced polymer components from water, brine, and other harmful fluids, ensuring the mechanical stability and longevity of oilfield equipment in harsh downhole conditions.

Problems solved by technology

Oilfield applications often present challenging operational requirements with respect to equipment used downhole.

Attempts have been made to use polymer tubular products, which may be fiber reinforced, in oilfield applications, but the challenging operational requirements can limit the effectiveness of these components.

For example, polymer materials can deteriorate when exposed to deleterious well fluids such as water, or other fluids containing compounds that alter the mechanical properties of the polymer materials.

Additionally, the high temperatures and other harsh conditions of a wellbore environment can limit the long-term functionality of polymer components in a downhole environment.

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