Patent ID: 8955430
Filing Date: 2015-02-17
Classification: B01F,B30B,C09K,E21B

Abstract:
1. A process for metering a material, the process comprising: providing in a container a divided material having a bulk density; providing a portion of the divided material from the container into a chamber having a first end and a second end, the second end having a valve that is selectively openable and closeable; compacting the portion of the divided material using a plunger moving from the first end within the chamber against the valve with the valve closed, until the material reaches a second density that is greater than the bulk density; actuating the valve to open the chamber at the second end; metering a desired amount of the compacted material out of the chamber through the second end using the plunger; combining the compacted material with a carrier fluid to form a mixture; and introducing the mixture into a hydrocarbon well.