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:
Apr. 22, 1980
Filed:
Apr. 10, 1978
Winfield W Salisbury, Scottsdale, AZ (US);
Walter J Stiles, Phoenix, AZ (US);
Magnafrac, Ft. Worth, TX (US);
Abstract
A method of perforating the sub-surface formation located in the area of an oil or gas well bore hole comprising directing a high powered coherent light beam axially along the bore hole to a predetermined depth therein from a surface location, deflecting the beam at said depth along a deflected beam axis, and successively focusing the beam at said depth to concentrate the beam at each of a plurality of spaced focal points along the deflected beam axis. The method (1) provides a significant increase in the distance (length) to which the calculated oil or gas bearing formations can be perforated (from a present nominal 18 inches to 200 feet or more), thus providing the opportunity for increased yield; and (2) provides an accurate determination of the exact near horizontal plane orientation of such perforations so that each can be aimed in the direction of the most promising formation pay zone.