Subsea tiebacks, other discoveries add to deepwater portfolio: as the first deepwater development operated by Dominion E&P, Devils Tower has served as a proving ground for ideas and training ground for people. With the spar now on stream, it is a hub for an area that will soon have two satellite developments brought to the spar and may yield additional discoveries.(Dominion Exploration and Production)

Publication: Oil and Gas Investor

Bookmark this article Print this article Link to this article Email this article Digg It! Add to del.icio.us RSS

COPYRIGHT 2005 Hart Publications, Inc.

Dominion E&P is migrating lessons it has learned in the Devils Tower region to other deepwater areas, and other operators are adopting innovations that the company introduced in the Devils Tower development.

Triton/Goldfinger

After the Devils Tower development scheme was sanctioned, Dominion E&P acquired operating rights on three adjacent blocks--Mississippi Canyon blocks 772, 728 and 729--down to a subsea depth of 16,500ft (5,033m) from Chevron in late 2001. In addition to drilling two Devils Tower development wells on these blocks, they also yielded the Triton discovery in mid-2002.

The Triton discovery, designated Mississippi Canyon 772 No. 4, encountered a total of 80ft (24m) of net true vertical thickness pay in two intervals. Both are stratigraphically equivalent to producing horizons in Devils Tower, but are structurally separated.

An early test of Triton demonstrated the discovery was commercially viable, and an appraisal well was drilled to fully delineate the field. The...

Read the full article for free courtesy of your local library.