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. 06, 2009
Filed:
Feb. 20, 2007
Harold Dean Brannon, Magnolia, TX (US);
William Dale Wood, Spring, TX (US);
Randall Edgeman, Midland, TX (US);
Allan Ray Rickards, Tomball, TX (US);
Christopher John Stephenson, Houston, TX (US);
Doug Walser, Midland, TX (US);
Mark Malone, Midland, TX (US);
Harold Dean Brannon, Magnolia, TX (US);
William Dale Wood, Spring, TX (US);
Randall Edgeman, Midland, TX (US);
Allan Ray Rickards, Tomball, TX (US);
Christopher John Stephenson, Houston, TX (US);
Doug Walser, Midland, TX (US);
Mark Malone, Midland, TX (US);
BJ Services Company, Houston, TX (US);
Abstract
An increase in effective propped lengths is evidenced in hydraulic fracturing treatments by the use of ultra lightweight (ULW) proppants. The ULW proppants have a density less than or equal to 2.45 g/cc and may be used as a mixture in a first proppant stage wherein at least one of the proppants is a ULW proppant. Alternatively, sequential proppant stages may be introduced into the formation wherein at least one of the proppant stages contain a ULW proppant and where at least one of the following conditions prevails: