Method and apparatus for ballistic tailoring of propellant structures and operation thereof for downhole stimulation

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United States of America Patent

PATENT NO 9447672
SERIAL NO

13781217

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Propellant structures and stimulation tools incorporating propellant structures may comprise composite propellant structures including two or more regions of propellant having different compositions, different grain structures, or both. An axially extending initiation bore containing an initiation element may extend through a center of the propellant structure, or may be laterally offset from the center. An offset initiation bore may be employed with a composite grain structure. Methods of tailoring ballistic characteristics of propellant burn to result in desired operational pressure pulse characteristics are also disclosed.

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Patent Owner(s)

  • ORBITAL ATK, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Arrell,, Jr John A Lincoln University, US 6 82
Moore, Steven E Elkton, US 6 147

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