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:
Oct. 29, 1991
Filed:
Feb. 22, 1991
Daniel M Houser, Thibodaux, LA (US);
McDermott International, Inc., New Orleans, LA (US);
Abstract
This invention pertains to a method of installing well conductors in such a way that the load upon the platform is significantly reduced thereby also eliminating the need for additional framing members. In accordance with this method, an end region of a well conductor is plugged which, if the conductor has a diameter-to-wall thickness ratio of about thirty to one (30:1), will cause the conductor to achieve nearly neutral buoyancy. By selectively adjusting the buoyancy of the conductor, such as by flooding or de-ballasting, additional conductor lengths may be added without imposing an unduly large load upon the platform. In this fashion, a smaller crane will be able to lower the conductor string without the need for a much larger derrick crane, which may then be more efficiently used solely to upend and stab the elongated conductors through the platform.