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| Number | Title | Issue Date |
| 7255180 | Modular drill system requiring limited field assembly and limited equipment support A modular transfigurable drilling rig comprises one or more transfigurable containers with drilling equipment to form an operational drilling rig. The transfigurable containers include a first and second load bearing support and a load bearing bottom disposed betwee... | 08/14/2007 |
| 7021402 | Method for using a multipurpose unit with multipurpose tower and a surface blow out preventer A method of drilling and completing an underwater well entails installing conductor casing from a floating vessel into a seabed; drilling a bore through the conductor casing to a defined depth in the seabed; and installing surface casing through the conductor casing... | 04/04/2006 |
| 6619223 | Tender with hawser lines A hawser system for connecting a semisubmersible tender to a deep draft caisson vessel comprising: a first winch and a second winch disposed on the first end of the tender; a first hawser connected to the first winch and a second hawser connected to the s... | 09/16/2003 |
| 6601649 | Multipurpose unit with multipurpose tower and method for tendering with a semisubmersible A semisubmersible multipurpose unit (MPU) having a deck, a multipurpose tower secured to the deck, supports, pontoons connected to the supports with each pontoon adapted for ballast transfer, at least two hawsers connected to the MPU for connecting the MP... | 08/05/2003 |
| 6575111 | Method for tendering A method of using a semi-submersible tender with a deck, a shape that results in a combined environmental load less than 1000 kips in a 100-year extreme weather condition, a plurality of supports each with a rounded shape connected to the deck, a pluralit... | 06/10/2003 |
| 6463870 | Mooring system for a tender for production platforms A mooring system for a semisubmersible tender which comprises a deck, a shape that results in a combined environmental load of less than 1000 kips in a 100-year extreme weather condition, a plurality of supports connected to the deck, a plurality of ponto... | 10/15/2002 |
