Halliburton Energy Services, Inc.

Jet Research Center, Inc.

David John Leidel

James Marshall Barker

Nathan Garret Clark

James Phillip Lawson

Jerry L Walker

John A Regalbuto

William Richard Collins

Corbin Sean Glenn

Thomas Jeffrey Wuensche

Justine Marie Davidson

Dannie R Collins

An initiator comprises: a first explosive substance, wherein the first explosive substance comprises a secondary explosive, and wherein at least the first explosive substance is capable of being initiated. The initiator comprises effectively no primary explosive. The secondary explosive can be a thermally-stable secondary explosive. A method of using an initiator comprises: initiating the initiator.

Initiator having an explosive substance of a secondary explosive

A liner () for a shaped charge () that utilizes a high performance powered metal mixture to achieve improved penetration depths during the perforation of a wellbore is disclosed. The high performance powdered metal mixture includes powdered tungsten and powdered metal binder. The powered metal binder may be selected from the group consisting of tantalum, molybdenum, lead, cooper and combination thereof. This mixture is compressively formed into a substantially conically shaped liner ().

High performance powdered metal mixtures for shaped charge liners

Apparatus and associated methods of using the apparatus are disclosed for performing cuts in a subterranean well. The apparatus utilizes linear shaped charges arranged in an endless pattern which are used to cut a pattern in a downhole structure. The charges are discharged to perform the cutting operation.

Method and apparatus for performing cutting operations in a subterranean well

A shaped charge apparatus having an improved liner for a shaped charge constructed from a combination of powdered metal and selected polymer material. Powdered heavy metal and polymer binder is compressively formed into a rigid shaped charge liner under very high pressure. The polymer binder may be in powdered form and or also be used to coat the powdered metal particles prior to compression. The compressed liner may also contain a relatively small percentage of other material to enhance lubrication or corrosion resistance.

Oil well perforator liner

A shaped charge is provided which includes features enhancing its manufacturability. In a described embodiment, an oilwell perforator is provided which includes a case and a liner, at least one of which is a molding. The molding has a metal loaded polymer matrix.

Oilwell perforator having metal loaded polymer matrix molded liner and case

A flexible linear shaped charge for discharging a high speed jet to penetrate a target comprising an outer housing which includes a sheath and the high speed jet, the high speed jet being integral with the sheath, and an explosive core disposed within the outer housing between the sheath and the high speed jet, the outer housing comprising a low density matrix mixed with a high density heavy metal powder to increase the confinement of the explosive core, thereby improving the performance of the shaped charge.

Apparatus for discharging a high speed jet to penetrate a target

The present invention comprises a high-density perforating gun in which the shaped charges carried thereby are oriented so that the jets emanating therefrom substantially intersect the axis of the gun. The shaped charges may be vertically spaced by a distance less than the diameter of the charges, but sufficient for each charge jet to pass unobstructed by other jets emanating from the charges immediately above and below.

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Arlington, TX, United States of America

David John Leidel