Downhole closed loop control of drilling trajectory

• US 20040050590A1
• Filed: 09/16/2002
• Published: 03/18/2004
• Est. Priority Date: 09/16/2002
• Status: Abandoned Application

• Current Assignee: Schlumberger Technology Corporation (SLB)
• Original Assignee: Schlumberger Technology Corporation (SLB)
• Inventors: Downton, Geoff, Pirovolou, Dimitrios K.
• Application Number:
  US10/065,080
• Publication Number:
  US 20040050590A1
• Time in Patent Office: Days
• US Class Current: 175/61
• CPC Class Codes: E21B 7/04 Directional drilling

Abstract

A method for drilling a borehole, comprising transmitting a directional signal to a downhole processor, and maintaining the desired drill bit azimuthal direction by using the downhole processor to evaluate an actual drill bit azimuthal direction relative to the desired drill bit azimuthal direction, and using the downhole processor to adjust the actual drill bit azimuthal direction by controlling the directional drilling device.

Claims