Shell Oil Comapny

Simon McKay

Rae Andrew Younger

James George Oag

Curtis Len Wilie

A flow restriction device for restricting flow through a conduit.

Flow restriction device for well bore

A method of separating a tubular element, comprising providing a tubular element having an inner and an outer surface, a circumference of said outer surface, a longitudinal axis and a first end and a second end; radially surrounding said tubular element with an explosive shaped charge material, wherein said shaped charge explosive material is capable of generating a high-velocity plasma jet in response to an activation signal, and wherein said explosive material comprises an electrically conductive layer; transmitting said activation signal to said explosive material; generating said high-velocity plasma jet; and separating said tubular element into a first portion comprising said first end and a second portion comprising said second end when said high-velocity plasma jet penetrates said outer surface of said tubular element and exits said inner surface of said tubular element.

Well emergency separation tool for use in separating a tubular element

A severance tool for severing a target is described. The severance tool comprises a housing, a plurality of focused energetics, each focused energetic adapted to release energy in a preferred direction and a trigger mechanism adapted to detonate the focused energetics. The focused energetics are aligned such that, on impact with a target comprising a material, the energy released by one of said focused energetics cooperates with the energy released by another of said focused energetics to establish a separating force within the target material.

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Aberdeen, United Kingdom

Simon McKay