DRILLING HEAD WITH NON-ROTATING ANNULAR SEAL ASSEMBLY
A drilling head can include an annular seal assembly releasably secured in an outer housing, the annular seal assembly including an annular seal and an actuator that pressurizes a lubricant for delivery to an interior of the annular seal. A method can include positioning an annular seal in a drillin...
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Main Authors | , |
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Format | Patent |
Language | English Spanish |
Published |
25.08.2022
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Subjects | |
Online Access | Get full text |
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Summary: | A drilling head can include an annular seal assembly releasably secured in an outer housing, the annular seal assembly including an annular seal and an actuator that pressurizes a lubricant for delivery to an interior of the annular seal. A method can include positioning an annular seal in a drilling head, the annular seal including an inner liner having openings formed through a sidewall of the inner liner, and flowing a lubricant into an opening while the inner liner sealingly engages a tubular. In another method, the annular seal can have a minimum inner diameter for sealing engagement with a tubular, and a lubricant passage extending through the annular seal and intersecting an interior of the annular seal at a location spaced apart from the minimum inner diameter. A lubricant is flowed through the lubricant passage to the interior of the annular seal.
Un cabezal de perforación puede incluir un montaje de sello anular asegurado de manera liberable en un alojamiento exterior, el montaje de sello anular que incluye un sello anular y un accionador que presuriza un lubricante para distribuir a un interior del sello anular. Un método puede incluir colocar un sello anular en un cabezal de perforación, el sello anular que incluye un revestimiento interior que tiene aberturas formadas a través de una pared lateral del revestimiento interior, y hacer fluir un lubricante en una abertura mientras el revestimiento interior acopla herméticamente un tubular. En otro método, el sello anula puede tener un diámetro interior mínimo para acoplar herméticamente con un tubular, y un pasaje de lubricante que se extiende a través del sello anular y que se cruza con un interior del sello anular en una ubicación separada del diámetro interior mínimo. Un lubricante se fluye a través del pasaje de lubricante al interior del sello anular. |
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Bibliography: | Application Number: MX20220009340 |