Heidelberg appraisal well plugged and abandoned for mechanical issues, Ensco 8500 set to drill another

By Phaedra Friend Troy 

The Heidelberg #2 appraisal well in the US Gulf of Mexico is being plugged and abandoned due to mechanical issues that occurred during drilling operations. 

The Heidelberg #2 appraisal well was spud by the Ensco 8500 semisubmersible drilling rig on Feb. 17, 2010 on Green Canyon Block 903 in the ultra-deepwaters of the Gulf of Mexico. The well did not reach the depth necessary to test the targeted objectives in the reservoir because of mechanical problems. 

Heidelberg #2 is being permanently plugged and abandoned. 

Operator Anadarko Petroleum plans to drill another appraisal well of Heidelberg on Green Canyon Block 903. The Ensco 8500 is on location, and drilling operations will commence as soon as possible on the new well. 

The Heidelberg oil field was discovered in early 2009 when more than 200 feet of oil pay were encountered in high-quality Miocene sands. Located in 5,000 feet of water, the Heidelberg is located near the Constitution spar, which may prove the development option for the field. 

Anadarko operates Green Canyon Blocks 903 with 44.25 percent interest. Partners on the block include Mariner (which is in the process of merging with Apache) with 12.5 percent interest, ENi with 12.5 percent interest, Statoil with 12 percent interest, ExxonMobil with 9.375 percent interest, and Cobalt International Energy with 9.375 percent interest.

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