Patent · US Active

Drilling rig employing pivoting drilling tower

US9267341B2 · kind B2 · utility

2Cited by

19References

19Claims

0Family size

Assignee

NABORS DRILLING INTERNATIONAL LIMITED · BM

Inventors

Padira Reddy · Richmond, US
Ashish Gupta · Houston, US
Sean Bailey · Emeryville, US

Key dates

Filing date	Mar 7, 2013
Grant date	Feb 23, 2016
Priority date	—
Expiry date	Apr 11, 2034

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B19/14
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

An apparatus including a base, and a drilling tower pivotally coupled to the base to pivot the drilling tower between first and second pivot positions. The drilling tower includes a first portion, and a second portion pivotally coupled to the first portion to pivot the second portion between third and fourth pivot positions when the drilling tower is in the first pivot position. A method includes pivotally coupling a drilling tower to a base, which includes providing a first portion of the drilling tower, pivotally coupling a second portion of the drilling tower to the first portion of the drilling tower, and pivotally coupling the first portion of the drilling tower to the base.

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