Mobil Oil Corporation

David Wade Bryant

George A Gillespie

Steven J Tupy

A method for removing a gravel-pack screen from a wellbore. of a well which has been 'gravel packed'. When it is desired to remove the screen from the wellbore, a washstring is lowered down the wellbore and into the interior of said screen. A wash fluid is then flowed fluid down the washstring and out through said screen into said mass of gravel surrounding the screen to fluidize, loosen, and remove said gravel. Once the mass of gravel has been loosen, the screen can then lifted upward out of said wellbore by applying a normal upward force the workstring which suspends the screen within the well.

Method for removing a gravel pack screen

An alternate-path, well screen made-up of joints and having a sleeve positioned between the ends of adjacent joints which acts as a manifold for fluidly-connecting the alternate-paths on one joint with the alternate-paths on an adjacent joint.

Alternate-path well screen having protected shunt connection

A well screen for gravel-packing a wellbore interval comprising at least two joints connected by a well tool. Each joint is comprised of a length of screen section which has at least one, axially-extending shunt conduit thereon for carrying gravel slurry to different levels within the interval. The well tool has at least one by-pass tube therein which is adapted to align with and fluidly-connect the shunt conduits on respective joints whereby gravel can flow from one of the shunt conduit, through the by-pass tube, and into and out of the other shunt conduit. A packing means is mounted on the tool for preventing any substantial annular, axial flow past the tool when the tool is an operable position within the wellbore.

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Abita Springs, LA, United States of America

David Wade Bryant