Patent ID: 11938592
Assignee: TD TOOLS, INC.
Field: Civil engineering (Other fields)
Classification: CPC B  E | IPC B  E

Claim 12:
13. The apparatus of claim 12, wherein the controller is configured to perform steps comprising:
opening the first high-pressure valve and the second high-pressure valve to circulate low-pressure abrasive slurry from a slurry-mixing apparatus to the first high-pressure vessel;
closing the third high-pressure valve and the fourth high-pressure valve to stop flow of high-pressure non-abrasive fluid through the first high-pressure vessel;
closing the first high-pressure valve and the second high-pressure valve to stop low-pressure flow of abrasive slurry into the first high-pressure vessel; and
opening the third high-pressure valve and the fourth high-pressure valve to allow the high-pressure non-abrasive fluid to push the abrasive slurry through the first high-pressure vessel to a destination.