Patent · US Active

Gravitational method and apparatus for measuring true vertical depth in a borehole

US8113041B2 · kind B2 · utility

5Cited by
20References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 15, 2008
Grant dateFeb 14, 2012
Priority date—
Expiry dateAug 31, 2030

Classification

  • Technology area (CPC E)Fixed Constructions
  • CPC primaryE21B47/04
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A method for measuring true vertical depth in a borehole, the method including: measuring gravitational acceleration in the borehole; and determining the true vertical depth from the measurement.

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