ELONGATED SEALING MEMBER FOR DOWNHOLE TOOL

摘要

A downhole apparatus is described comprising a body and a sealing arrangement located on the body. The body has a longitudinal axis and the sealing arrangement comprises at least one elongated sealing member with an axis of elongation extending around the longitudinal axis. The sealing member comprises a material selected to expand on exposure to at least one predetermined fluid, such as a hydrocarbon or aqueous fluid encountered in a wellbore. A method of forming the apparatus and methods of use are described. Embodiments of the invention relate to wellbore packers.

主权项

1. An apparatus comprising:
a body having a longitudinal axis; and a sealing arrangement located on the body, comprising:
at least one elongated sealing member comprising a material selected to expand on exposure to at least one predetermined fluid, wherein the sealing member has an axis of elongation extending around the longitudinal axis of the body, and wherein the sealing member extends around an inner surface of the body and is configured to form an annular seal in use.