Method of suspending, completing and working over a well

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7438135
APP PUB NO 20060237189A1
SERIAL NO

11474314

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Methods are provided in which reliance is placed on a first and second barrier respectively positioned in a well 10 to provide well control during well suspension, completion and/or workover operations. Each of the barriers is below the depth of the lowermost end of a completion string when that string is installed in the well. By not placing either barrier higher up in the well-bore, both of the barriers can remain in place during suspension and completion and workover operations, thus obviating the need to use a BOP stack to supplement well control. This results in a considerable saving in drill rig time and thus significantly reduces the cost of constructing a well.

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Patent Owner(s)

Patent OwnerAddress
WOODSIDE ENERGY LTD240 ST GEORGE'S TERRACE PERTH 6000

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Burns, Alexander Jeffrey Willetton WA, AU 4 61
Niski, John Edward Manning WA, AU 2 45
Page, Peter Ernest East Perth WA, AU 3 77

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