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.:

US 7137446 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 21, 2006

Filed:

Mar. 22, 2004
Applicants:

Jesse M. Gagliano, Lafayette, LA (US);

William A. Townsend, Wynnewood, OK (US);

Inventors:

Jesse M. Gagliano, Lafayette, LA (US);

William A. Townsend, Wynnewood, OK (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/13 (2006.01); E21B 21/00 (2006.01); E21B 47/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

In embodiments, methods of determining a size of an annulus in a wellbore include: (a) displacing a fluid comprising reflective particles downhole and up through the annulus, wherein the reflective particles make a front end of the fluid visible as it exits the wellbore; (b) determining a total volume of the fluid displaced into the wellbore by detecting the reflective particles exiting the wellbore; and (c) calculating the size of the annulus based on that total volume of the fluid. The fluid may include a drilling fluid, a cement slurry, a spacer fluid, or combinations thereof. The reflective particles may include polymeric beads. In additional embodiments, drilling fluids, spacer fluids, cement slurries and combinations thereof comprise an effective amount of reflective particles to ensure that the fluids are visible when they exit a wellbore.


Find Patent Forward Citations

Gagliano, Jesse. (2006). Fluids comprising reflective particles and methods of using the same to determine the size of a wellbore annulus (U.S. Patent No. 7137446). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7137446

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