STANDARDIZATION METHOD FOR SETTING REFERENCE POINT FOR LOADING ON THE SEA AFTER CONSTRUCTING DRILLSHIP AT HEAVY ZONE

摘要

PURPOSE: A standardization method for setting a reference point of loading components in a drillship is provided to load all the blocks and equipment on the topside of the drillship without an additional auxiliary point. CONSTITUTION: A standardization method for setting a reference point of loading components in a drillship is as follows: a step of obtaining data with alignment test instruments in a state that a body of the drillship is completed in land(S20); a step of setting a reference point based on an existing reference point or a current well center(S40); a step of setting the coordinate of an auxiliary point according to a standard loading process(S60); a step of setting the auxiliary point on the reference point(S80); a step of maintaining even keel by blasting in a state of floating on the sea; and a step of working and loading all the blocks, equipment, and other fittings on the drillship using the instruments(S120). [Reference numerals] (S100) Maintain even keel by blasting in a state of floating on the sea; (S120) Work on all blocks, equipment, and other fittings on the sea using a three-dimensional measuring instrument; (S20) Obtain data with an alignment test after completion in land; (S40) Set a '0(zero)' reference point based on an existing reference point or a current well center; (S60) Set a coordinate of an auxiliary point according to a standard process; (S80) Set the auxiliary point coordinate as reference