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.

Date of Patent:
Jan. 15, 2008

Filed:

Aug. 05, 2005
Applicants:

Gustavo Cavazzoli, Rio de Janeiro, BR;

Juan Gabriel Blanco, Reynosa, MX;

J. Ernest Brown, Katy, TX (US);

Pia-angela Francini, Houston, TX (US);

Diankui Fu, Tyumen, RU;

Inventors:

Gustavo Cavazzoli, Rio de Janeiro, BR;

Juan Gabriel Blanco, Reynosa, MX;

J. Ernest Brown, Katy, TX (US);

Pia-Angela Francini, Houston, TX (US);

Diankui Fu, Tyumen, RU;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/27 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method for stimulating thick or multilayered heterogeneous or homogeneous formations in a single trip without packers involves perforating with tubing conveyed perforation, then injecting a self-diverting acid, then moving the tubing string and perforating at a new location, and then injecting additional self-diverting acid. The sequence may be repeated. The acid is preferably a viscoelastic diverting acid. The self-diverting acid may be alternated with conventional treatment fluid. The job is designed to treat the least permeable zone(s) first and maximizes acid efficiency.


Find Patent Forward Citations

Cavazzoli, Gustavo. (2008). Matrix acidizing high permeability contrast formations (U.S. Patent No. 7318475). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7318475

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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