High performance regular and high expansion elements for oil and gas applications

This invention describes a device for sealing pipes deep underground in oil and gas wells. It uses a special rubbery component, called an elastomeric element, made from a unique plastic material that is a blend of thiourethane and acrylate polymers. This rubbery part is attached to other sealing features and is designed to be squeezed against a pipe to create a tight seal, rather than just being a protective coating. The claims specifically focus on either a thiourethane polymer or a thiolacrylate polymer for this sealing element.

Why it matters: Given the short three-year gap since filing, no fundamental shifts in polymer chemistry or downhole engineering have emerged to significantly alter the viability of this specific material. The primary challenge remains the specialized development and qualification of such a polymer for extreme downhole conditions.

Status: Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build: SpecializedCustom polymer formulation, high-pressure components

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