DRILLING PLATFORM Russian patent published in 2004 - IPC

FIELD: equipment for performing geological engineering survey; performing drilling work in shallow waters in open water areas.

SUBSTANCE: proposed drilling platform includes floating offshore platform on which drill with drilling mast and platform positioning units are mounted; said positioning units are made in form of struts whose length exceeds depth of water basin; these struts are reciprocating in guides secured on platform frame. Some of horizontal beams of frame which are parallel to each other and to one side of platform are provided with cylindrical floats for rotation around them. Drilling and auxiliary equipment of platform is located on flooring which is secured at clearance above surface of cylindrical floats. Platform is provided with at least three struts; each strut is provided in its turn with bearing pivot and is located in guide fitted with strut locking unit. Platform is provided with offshore platform hoisting unit by means of winches, preferably tackles, which are provided with units for coupling them with floating offshore platform and with struts.

EFFECT: enhanced efficiency of bringing platform in operating position and vice versa; low effect of weather conditions.

6 cl, 8 dwg