Self-elevating mast employing draw works

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9279267
APP PUB NO 20150107165A1
SERIAL NO

14581499

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A system comprising a support structure having a plurality of vertically extending members arranged to define a mast channel, the support structure attached to a platform having a rig floor and the support structure positioned above an opening in the rig floor; a first mast section that is attached to the support structure; a second mast section that is attached to the support structure and the first mast section; and a third mast section; wherein the system has a first arrangement in which the third mast section is located below the rig floor in a vertical position and is vertically spaced from the second mast; and wherein the system has a second arrangement in which the third mast section is attached to the second mast section and at least a portion of the third mast extends within the opening of the rig floor.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
NABORS DRILLING TECHNOLOGIES USA INC515 WEST GREENS ROAD SUITE 1200 HOUSTON TX 77067

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bailey, Sean M Willis, US 23 220
Gupta, Ashish Houston, US 293 4635
Petrello, Anthony Houston, US 6 50
Reddy, Padira Richmond, US 50 598

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