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. 17, 1978
Filed:
Oct. 26, 1976
Applicant:
Inventors:
Claude E Cooke, Jr, Houston, TX (US);
Walter A Hedden, Worthington, OH (US);
William C Chard, Columbus, OH (US);
Assignee:
Exxon Production Research Company, Houston, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166280 ; 166307 ; 166308 ;
Abstract
An improved method of fracturing a subterranean formation wherein particles composed of sintered bauxite are placed in the formation fracture to maintain the walls of the fracture spaced apart. The sintered bauxite particles have a specific gravity greater than 3.4 and are prepared from bauxite material having a grain size of about 12 microns or less.