Patent EA-001285-B1 (EA)
Title: The apparatus for transportation and installation of the desk of sea platform for petroleum extraction.
Inventor: THOMAS PIERRE-ARMAND
IPC: E02B17/00
Filed: 1999-06-11
Abstract: 1. The apparatus for the transportation and installation of deck (1) on the platform for offshore petroleum extraction, comprising floating barge (10) designated to support the desk (1)and equipped with devices for transportation of said desk (1) from its bearing position on the barge (10) to the position on the bearings (3) of the platform, characterized in that said apparatus additionally comprises supporting carcass (11) for deck (1), serving for its arrangement on the barge (10), and a device for shifting of the desk (1), using at least a rack (21), movable in vertical direction by means of drive mechanism (20). 2. The apparatus according to claim 1, characterized in that the supporting carcass (11) comprises at least one upper beam (12a) and one underneath beam (12b) which are connected by braces (13), the construction is located across the axis of the barge (10) and said beams are equipped with racks (21) and drive mechanisms (20) on their ends. 3. The apparatus according to claim 2, characterized in that the beams (12a, 12b) are adjustable in their length in order to change the distance between the racks (21). 4. The apparatus according to claim 1 or 2, characterized in that said rack (21) comprises a plate (21a) with rows of teeth on its sides (21b) and drive mechanism (20), which comprises at least two opposite to each other assemblings (25), provided with engine (27), connected with at least one reductor (28), setting in motion eduction gear (26) geared into one of rows of teeth (21b) of said rack (21). 5. The apparatus according to claim 4, characterized in that assemblings (25) of each drive mechanism (20) are mounted on the construction (30), which is connected with beams (12a, 12b) via means for consumption of impacts. 6. The apparatus according to claim 1 or 2, characterized in that said rack (21) is provided with anti-impact chock (29) on its upper end. 7. The apparatus according to one of claims from 1 to 6, characterized in that it comprises means for connection (35) of rack (21) with desk (1) of the platform, which are separated after changing of buoyancy of the barge (10). 8. The apparatus according to claim 7, characterized in that the means for connection (35) comprise the rod (36), the end of which (36b) is connected with desk (1), while said rod has the portion (39) of diminished cross section, which should be demolished under predetermined load effect. 9. The apparatus according to claim 7, characterized in that said means for connection (35) comprise the rod (40, 50), the ends of which are connected with one of the elements of rack (21) or desk (1) and the other end is connected with said elements at least by means of one fixing device (45, 53), transferred across the axis of the rod (40, 50) and being set in motion by control device (44, 52). 10. The apparatus according to claim 7, characterized in that said fixing device is formed by a pin (45, 53), entering the notch (41, 55) which is made in the rod (40, 50). 11. The apparatus according to claim 8, characterized in that said pin (53) is made in a shape of wedge and the notch (55) in its cross section has the shape, which is complementary to the shape of the pin (53). 12. The apparatus according to claim 7, characterized in that said control device comprises lifting jack (46, 54).