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:
Jan. 23, 2001
Filed:
Jun. 30, 1999
Applicant:
Inventors:
Josef Guillaume Christoffel Coenen, Rijswijk, NL;
Cornelis Jan Kenter, Rijswijk, NL;
Djurre Hans Zijsling, Rijswijk, NL;
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 4/326 ;
U.S. Cl.
CPC ...
E21B 4/326 ;
Abstract
A method for fracturing an underground formation surrounding an oil and/or gas well comprises positioning a fracturing tool in a selected orientation in the borehole and expanding the tool such that it exerts a circumferentially varying pressure against the borehole wall over a selected period of time thereby initiating in the surrounding formation one or more fractures which each intersect the borehole wall in a selected orientation and simultaneously injecting a proppant into the fracture(s).