The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 16, 1981
Filed:
May. 11, 1979
Jay B Weidler, Houston, TX (US);
Brown & Root, Inc., Houston, TX (US);
Abstract
An offshore jacket is provided which comprises a plurality of main hollow pile sleeves and a plurality of secondary hollow pile sleeves of shorter height than the main sleeves and connected thereto by framing. A plurality of main piles and secondary piles are disposed within the main sleeves and secondary sleeves, respectively, and project downwardly therebeyond into the seabed. The main and secondary piles are connected to their respective main and secondary sleeves by grout disposed within an annulus between the sleeve and the pile, so that the pile resists axial forces. The grout within the secondary piles extends to the seabed. The grout within at least some of the main sleeves terminates above the seabed to decrease the axial spring value of the associated piles and thereby increase the proportion of the axial forces which are borne by the secondary piles. Also provided is an offshore jacket which does not employ secondary sleeves and piles; the lower level of grout within some of the sleeves is disposed above the level of grout within others of the sleeves located closer to a central axis of the jacket to decrease the axial spring values of the former piles and thereby more uniformly distribute the axial forces among the piles.