FIBER REINFORCED SEALING ELEMENT

摘要

A method for making a sealing element for a rotating control device used in rotary drilling systems is disclosed. The sealing element has a bore, a base region, and a nose region. The method comprises providing a mold for the sealing element for the rotating control device, adding fibers at a first concentration to a first liquid elastomer material containing polyurethane, placing the first liquid elastomer material having a first concentration of fibers into the mold, adding fibers at a second concentration to a second liquid elastomer material containing polyurethane, placing the second liquid elastomer material having a second concentration of fibers into the mold, heating the fibers and liquid elastomer in the mold, and forming a sealing element having a bore, a base region with a first concentration of fibers, and a nose region having a second concentration of fibers.

主权项

1. A method for making a sealing element for a rotating control device used in rotary drilling systems, said sealing element having a bore, a base region, and a nose region, said method comprising:
providing a mold for the sealing element for the rotating control device; adding fibers at a first concentration to a first liquid elastomer material containing polyurethane; placing the first liquid elastomer material having a first concentration of fibers into the mold; adding fibers at a second concentration to a second liquid elastomer material containing polyurethane; placing the second liquid elastomer material having a second concentration of fibers into the mold; heating the fibers and liquid elastomer in the mold; and forming a sealing element having a bore, a base region with a first concentration of fibers, and a nose region having a second concentration of fibers.