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ENERGY NEWS

 
     
 

Mad Dog extension well encounters significant oil pay

Posted: 23 March 2005

BHP Billiton announced today that an appraisal well drilled on the deepwater Mad Dog Southwest Ridge in the Gulf of Mexico encountered significant hydrocarbon pay. The discovery was further delineated by three sidetracks.

The original hole was drilled to a total measured depth of 22,890 feet from Green Canyon 826 to downdip targets in the adjacent Green Canyon 825 Block. The blocks are located in approximately 5,000 feet of water. The well and its sidetracks were designed to test the previously undrilled southwest flank of the field.  Individually the penetrations encountered up to approximately 300 feet of net oil pay in the early Miocene section and found hydrocarbons some 700 feet deeper on the west flank of the structure than previously encountered.

“These results significantly reduce the risk associated with our previously announced reserve estimate of 200 to 450 million barrels of oil equivalent,” BHP Billiton Group President Energy, Philip Aiken said.  “The resources associated with these wells could be produced either through spar development wells or future subsea tie-backs.”

Production at the Mad Dog field began in January 2005 from Green Canyon Block 782. Gross field production is currently about 30,000 barrels of oil per day from two wells. BHP Billiton holds a 23.9 percent working interest in the Mad Dog unit. BP is the Operator with 60.5 percent working interest and Unocal, a 15.6 percent interest holder in Mad Dog, was the operator for the drilling of the Southwest Ridge appraisal well, using the Discoverer Spirit drillship.

For more information see http://www.bhpbilliton.com

 

 
     

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