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:
Sep. 14, 2004
Filed:
Oct. 04, 2002
M. Vikram Rao, Houston, TX (US);
Paul F. Rodney, Houston, TX (US);
Halliburton Energy Services, Houston, TX (US);
Abstract
A method for improving ROP and reducing hazards in drilling subterranean wells by using an acoustical system to look ahead of the drill bit , detects and analyzes geologic features ahead of the bit which may be qualified as drilling hazards . Detection of such hazards may facilitate use of more aggressively penetrating bits such as PDC bits as opposed to roller cone bits. In addition, other drilling parameters may be adjusted to improve ROP due to the ability to timely respond to identified hazards before they may be detrimentally encountered by the bit . The acoustic system may look ahead of the bit by at least 100 meters, using propagated acoustic waves to locate changes in acoustic impedance which may represent drilling hazards . In addition, bulk resistivity ahead of the bit may also be measured and used to locate drilling hazards . The measured properties of the investigated formation may facilitate optimizing the design and operation of a drilling program so as to improve the rate of penetration.