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:
Feb. 24, 2009
Filed:
Jul. 09, 2004
Applicant:
Jan-jette Blangé, Rijswijk, NL;
Inventor:
Jan-Jette Blangé, Rijswijk, NL;
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 7/16 (2006.01); E21B 7/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
A system and method for making a hole in an object, the system having jet means for generating an abrasive jet formed of a mixture of a fluid and abrasive particles, and for blasting the abrasive jet with an erosive power into impingement with the object in an impingement area, thereby eroding the object in the impingement area. The system further has a rotating means for moving the impingement area along a selected circular trajectory in the hole about its circumference, and modulation means for modulating the erosive power of the abrasive jet while the impingement area is being moved along the selected trajectory.