Apparatus and method for foaming fluids and for testing foamed fluids
US6484568B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2001 |
| Grant date | Nov 26, 2002 |
| Priority date | — |
| Expiry date | Mar 23, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB28C5/381
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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 b…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.