Halliburton Energy Services, Inc.

Bryan Powell

Michael Linley Fripp

Paul David Ringgenberg

John Hudson Hales

Paul I Herman

Javier Fadul

Dennis Crowdis

Randy Moore

Jerry L Walker

Matthew Craig Mlcak

Anthony Phan

Corbin Sean Glenn

Pramod Chamarthy

Christian Weliyanto

Gerard Steven Mackay

A downhole cutting tool may include a tubular housing securable to a downhole end of a conveyance and a cutting head secured to the tubular housing. The cutting head may have a retractable cutting blade configured to move between a radially extended position and a retracted position. Additionally, the cutting head may be configured to rotate with respect to the tubular housing to drive the retractable cutting blade, in the radially extended position, to cut a downhole tubular disposed in a wellbore. The downhole cutting tool may also include at least one motor secured within the tubular housing and configured to drive rotation of the cutting head. Further, the downhole cutting tool may include a power source disposed within the tubular housing and configured to supply power to the at least one motor, and the power source may include at least one battery.

Battery powered downhole cutting tool

Provided is a method for inspecting at least a portion of a downhole conveyance device. The method, in one embodiment, includes providing a downhole conveyance device, and providing an ultrasonic defect inspection system adjacent the downhole conveyance device. The method, in this embodiment, further includes detecting defects in the downhole conveyance device using the ultrasonic defect inspection system, wherein the detecting includes transmitting ultrasonic waves from the ultrasonic defect inspection system toward the downhole conveyance device, and obtaining defect data by sensing disruptions in the reflected ultrasonic waves caused by defects in the downhole conveyance device.

Application of ultrasonic inspection to downhole conveyance devices

A high expansion bridge plug comprising an elastomer element assembly and a control assembly for generating a compressive force against the elastomer element assembly. The elastomer element assembly comprises a first element stack and a second element stack with the first element stack comprising a first grouping of male and female elements and the second element stack comprising a second grouping of male and female elements. The compressive force generated causes the male element and the female element to expand and the female element to at least partially swallow the male element. The male and female elements can be conical shape, and an angle of a conical element can be between 5-25 degrees, and the length of the top female element is greater than the length of the middle or bottom male element.

Through tubing bridge plug having high expansion elastomer design

Methods and apparatus are presented for a 'disappearing' perforator gun assembly. In a preferred method of perforating a well casing, inserted into the well casing is a tubing conveyed perforator having an outer tubular made from a metallic glass alloy having high strength and low impact resistance. An inner structure is positioned within the outer tubular and holds one or more explosive charges. Upon detonating the explosive charges, the outer tubular is fragmented. The inner structure is preferably also substantially destroyed upon detonation of the one or more explosive charges. For example, the inner structure can be made from a combustible material, corrodible, dissolvable, etc., material. A disintegration-enhancing material is optionally positioned between the outer tubular and the inner structure. Additional embodiments are presented having gun housings which dematerialize upon detonation of the charges.

Method and apparatus for expendable tubing-conveyed perforating gun

A perforation gun. The perforation gun comprises a tool body, the tool body defining at least one shouldered hole wherein the shouldered hole comprises a hole through a wall of the tool body and a shoulder that is thinner than the wall of the tool body and at least one perforating explosive charge disposed within the tool body.

Pressure limiting device for well perforation gun string

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Van Alstyne, TX, United States of America

Bryan Powell