Boring or penetrating the earth – Boring a submerged formation – Boring from floating support with submerged independent...
Patent
1995-10-18
1998-03-03
Dang, Hoang C.
Boring or penetrating the earth
Boring a submerged formation
Boring from floating support with submerged independent...
166349, 166366, 175 10, 405227, E21B 7128
Patent
active
057224943
ABSTRACT:
One or more bracing structures are placed at an underwater mud line location. The bracing structure(s) are first used as a template to guide the offshore drilling and placement of well tubulars. After drilling through the template is completed, at least one of the bracing structures is raised and attached to the well tubulars to act as a support structure for bracing between the well tubulars. The uppermost raised structure typically acts as a working platform or a support for a working platform. If more than one bracing structure is used, they are stacked one on top the other at the underwater location until the well tubulars are in place and one or more of the structures are raised and spaced apart.
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Craig, Michael J. K., Minimum Offshore Structures Cost Less, Pose Higher Risk, Oil & Gas Journal, Jul. 17, 1995, pp. 33-42.
Jones Frank L.
Landeck Chris R.
Scott Randall G.
Dang Hoang C.
Finkle Yale
Jacobson William O.
Union Oil Company of California
Wirzbicki Gregory F.
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