Patent ID: 9593050
Date: 2017-03-14
CPC Classifications: B01F,B28C,C04B,C09K,E21B,G05B

Claim:
1. A system for making stable cement slurry for downhole injection, comprising: a controller for controlling the system, the controller including one or more communications interfaces for communicating with system components and a data storage device for storing predetermined process parameters; a process water supply circuit for providing temperature controlled process water for producing an air-entrained foam, including: an aqueous-based air entrainment solution supply circuit for providing an aqueous-based air entrainment solution for producing an air-entrained foam, including: a mixing chamber, the mixing chamber receiving process water and aqueous-based air-e ntrainment solution diverted by first and second valves, respectively, and wherein the process water and aqueous-based air-entrainment solution are blended in the mixing chamber; a stationary mixer, the stationary mixer receiving process water, aqueous-based air-entrainment solution and compressed air and mixing the process water, aqueous-based air-entrainment solution and compressed air to produce an air-entrained foam; and a discharge line, for discharging the air-entrained foam for mixing with a concrete composition to produce air-entrained concrete connected to a pump for pumping an air entrained stable cement slurry into a wellbore.