Apparatus for introducing an additive into a drilling mud system
US4300724A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 24, 1979 |
| Grant date | Nov 17, 1981 |
| Priority date | — |
| Expiry date | Sep 24, 1999 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01C7/004
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Apparatus for introducing an additive into a drilling mud system, which includes a hopper for containing the additive mounted substantially over a flow line for the flow of mud from the system therethrough. The hopper has a funnel-shaped lower portion terminating in a neck connected to the flow line. The neck of the funnel-shaped lower portion has a variable size orifice to control the rate of the flow of additive therethrough. A nozzle is provided in the flow line substantially below the neck for mixing the additive with the mud. A vibrator is provided for vibrating the lower portion of the hopper to encourage movement of the additive toward the neck. An air nozzle is provided for fluidizing the additive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.