How to Connect a drilling riser string and equipment as well as the complex of the riser string

摘要

SolutionsIn one execution example, as for this invention, being something regarding the riser device which is used for the offshore excavation of the oil or other fossil fuel, to have the plural riser sections where the end and the end are connected continually, each of the said riser section the 1st end and to have with the 2nd flange which is connected to the 2nd end of the 1st flange and the tube which are connected to the 1st end of the tube and the tube which possess the 2nd end mechanically mechanically, the tube to consist of the aluminum alloy, the flange to consist of the aluminum alloy, length of the riser device approximately 1500It is above meter. Selective figure Figure 1