Magnetorheological blowout preventer

摘要

A Blowout Preventer comprising a housing, one or more magnets and a magnetic fluid is described. More particularly, a Magnetorheological Blowout Preventer with a Magnetorheological Ram Head that conforms to virtually any cross sectional shape is described with ultra-reliable termination of natural gas and/or oil effluent flow resulting.

主权项

1. A blowout preventer, comprising:
a wellbore conduit portion; a magnet set including at least one magnet; and a magnetic fluid comprising a suspension of magnetic and/or magnetizable particles in a carrier liquid, wherein the magnetic fluid is selected from the group consisting of: a ferrofluid, a magnetorheological fluid, an inverse magnetorheological fluid, and/or combinations thereof,further wherein the wellbore conduit portion is connectable into fluid communication with a wellbore conduit,the wellbore conduit portion and the magnet set are sized, shaped, connected, structured and/or located so that a conduit sealing formation will form in the conduit portion when the following two conditions are met:
(i) the magnet set is configured to generate a magnetic field, and (ii) the magnetic fluid is caused to flow in the wellbore conduit portion.