Patent · US Expired

Method of installing sub-sea templates

US4435108A · kind A · utility

18Cited by
5References
15Claims
0Family size

Assignee

Inventor

Key dates

Filing dateAug 11, 1981
Grant dateMar 6, 1984
Priority date
Expiry dateAug 11, 2001

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB63B2001/128
  • WIPO fieldTransport
  • WIPO sectorMechanical engineering

Abstract

A subsea template is installed by a method which includes the steps of securing the template in a position beneath the deck of a semi-submersible drilling vessel, moving the semi-submersible drilling vessel to an appropriate offshore site and subsequently lowering the template from the semi-submersible to the sea bed. In addition, at least three anchorage templates may be loaded onto one or both of the pontoons of the semi-submersible drilling vessel at its original position and are subsequently lowered from the pontoons to their respective locations on the sea bed after the semi-submersible has moved to the offshore site.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.