Shell Oil Comapny

Halliburton Energy Services, Inc.

Shell Internationale Research Maatschappij, B.v.

Curtis Len Wilie

Tommy Frank Grigsby

Jackie M LaFontaine

Simon McKay

Wilfredo Rosa

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, and a first end and a second end; radially surrounding said tubular element with an explosive material, wherein said 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 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.

A subsea accumulator comprising: an outer wall; a top surface; a bottom surface; and a piston disposed within the subsea accumulator, wherein a first chamber is defined by the top surface, the outer wall, and a top portion of the piston; a second chamber is defined by the bottom surface; the outer wall, and a bottom portion of the piston; and a solid oxidant is disposed within the first chamber.

Propellant driven accumulator

A blowout preventer comprising: a body comprising a bore therethrough; a cavity disposed through the body and intersecting the bore; first and second closure members moveably disposed within the cavity on opposite sides of the bore; a first rod having a length and comprising a first end coupled to the first closure member; a second rod having a length and comprising a first end coupled to the second closure member; a first glider assembly wherein a second end of the first rod is at least partially disposed within the first glider assembly; and a second glider assembly wherein a second end of the second rod is at least partially disposed within the second glider assembly.

Electromagnetic actuator for a blowout preventer

A collapsible casing device, comprising an insert housing, said insert housing having an outer surface and an inner surface, said outer surface fluidly isolated from an external environment, said inner surface having a profile, and a connection between said outer surface and said inner surface, wherein said connection is capable of fluidly connecting to a tubular element; a deformable insert, said deformable insert having an inner surface and an outer surface, said outer surface fitting within said profile of said insert housing, said inner surface capable of containing a fluid and having a first inner diameter, said deformable insert having properties that are conducive to deformation; an explosive material that generates a pressure pulse in response to an activation signal, said explosive material having an inner surface and an outer surface and a composition, said outer surface fitting within said profile of said insert housing, said inner surface external to said outer surface of said deformable insert; and a trigger, said trigger capable of generating said activation signal.

Collapsible casing device for use in controlling flow

A method of separating a riser, comprising providing a riser 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 riser 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 riser 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 riser and exits said inner surface of said riser.

Riser cutting tool

The invention comprises a tubing assembly for use in testing an unconsolidated open-hole portion of a well bore located below a cased portion of the well bore and a method of using the assembly. The tubing assembly comprises an elongated tubing string extending from a well surface into the unconsolidated open-hole portion of the open hole, an open-hole packer mounted on the tubing string for use in sealingly engaging the unconsolidated open-hole portion of the well bore, a casing packer mounted on the tubing string between the open-hole packer and the well surface for sealingly engaging the cased portion of the well bore and a sand control device connected to the tubing string below the openhole packer. The assembly may further comprise additional open-hole packers and sand control devices mounted on the tubing string. Segments of the tubing string may be retrievable. The assembly may have one or more tubing disconnects mounted to the tubing string to disconnect segments of the tubing assembly. The tubing string may further comprise a selective flow device for selectively controlling the flow of well fluids from the well bore into the tubing string.

Growing community of inventors

Alvin, TX, United States of America

Curtis Len Wilie