Systems and methods for removing a section of casing

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9359848
APP PUB NO 20140352964A1
SERIAL NO

13909190

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method includes conveying a casing cutting tool into the wellbore lined with at least one casing string and cement, and stroking the casing cutting tool over a predetermined axial length of the wellbore while ejecting fluid from one or more nozzles in the casing cutting tool and thereby forming a plurality of longitudinal cuts through the casing string and cement. The casing cutting tool is then rotated about its longitudinal axis at two or more axially offset locations along the predetermined axial length while ejecting fluid from nozzles and thereby forming a plurality of axially offset transverse cuts in the casing string and the cement. The longitudinal cuts and axially offset transverse cuts form wedges in the wellbore, and the wedges are dislodged from the wellbore to expose formation rock along the predetermined axial length.

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Patent Owner(s)

  • HALLIBURTON ENERGY SERVICES, INC.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Giskemo, Jorn Tore Tananger, NO 3 28
Greening, Aimee Duncan, US 4 125
Jones, Desmond Duncan, US 5 100
Rakstang, Oyvind Tananger, NO 1 10
Surjaatmadja, Jim Basuki Duncan, US 56 560

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