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:
Nov. 26, 2002
Filed:
Mar. 22, 2001
James E. Griffith, Duncan, OK (US);
Ricky A. Cox, Comanche, OK (US);
John L. Dennis, Jr., Marlow, OK (US);
Bryan K. Waugh, Duncan, OK (US);
Halliburton Energy Services, Inc., Duncan, OK (US);
Abstract
A method and apparatus for foaming and then testing the foamed fluid. The apparatus comprises a cylindrical pressure vessel with upper and lower caps. A circular disk with a plurality of openings, which are preferably circular openings, is placed in the pressure vessel. The apparatus also includes a motor with a shaft extending therefrom. The shaft is attached to the pressure vessel so that when the motor is actuated, the pressure vessel can be rotated in a desired revolutions per minute. The method includes placing a mixture in the pressure vessel and then attaching the caps to the upper and lower ends of the vessel. The upper cap has a pressure gauge and has a pressure inlet and a pressure relief valve. The circular disk is placed in the vessel. The vessel is pressurized to a desired pressure with a gas motor. The motor is then actuated to rotate the vessel. As the vessel rotates, the circular disk is caused to move through the mixture, which will contain at least water, cement and a foaming agent, to disperse the gas through the fluid. The rotation of the vessel will filly foam the fluid. Tests can then be conducted on the filly foamed fluid. A fluid loss test can be conducted by opening the pressure relief valve to relieve pressure in the vessel and by opening a valve in the bottom cap to allow filtrates to pass out of the vessel. Compression tests can be conducted by curing the mixed sample inside the vessel at a desired temperature for a desired time and thereafter removing the cured sample from the pressure vessel to conduct compressive strength tests.