Modular drilling template for drilling subsea wells
US4784527A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 1987 |
| Grant date | Nov 15, 1988 |
| Priority date | — |
| Expiry date | May 29, 2007 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/017
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A light-weight, modular drilling template. A template is constructed of light-weight tubular steel having ring stiffeners to provide adequate crush resistance to withstand collapse under hydraulic loading provided by water pressure at 1800 feet water depth. The template is constructed as a pod-receiving frame with separable pods that may be installed after the frame has been set on the seafloor and leveled. The individual pods may be fine tune leveled by means of adjustable jacking mechanisms that form part of the latching devices that secure the pods to the frame. A method for installing a foundation template subsequent to installing the drilling template is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.