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:
Aug. 11, 1981
Filed:
Sep. 11, 1979
Winfield W Salisbury, Scottsdale, AZ (US);
Walter J Stiles, Phoenix, AZ (US);
Magnafrac, Fort Worth, TX (US);
Abstract
A system for perforating the subsurface formation located in the area of an oil or gas bore hole in which a high powered coherent light beam axially is directed along the bore hole to a predetermined depth therein from a surface location, the beam is deflected at said depth along a deflected beam axis. The beam is focused at said depth to concentrate the beam at each of a plurality of spaced focal points along the deflected beam axis. There is provided (1) 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) an accurate determination of the exact near horizontal plan orientation of such perforations so that each can be aimed in the direction of the most promising formation pay zone.