Elongated Tank for use in Injecting Slurry

A system for injecting slurry from a slurry source into a slurry injection site comprising:

• a high pressure pump coupled to a clear fluid source;
• a first elongated tank comprising a first end having a first volume and a second end having a second volume, said first volume separated from the second volume;
• a first pipe having a first end external to the first elongated tank, said first pipe extending to the first elongated tank so that a second end of the first pipe communicates clear fluid to the first volume;
• a second elongated tank comprising a first end having a third volume and a second end having a fourth volume, said third volume separated from the fourth volume;
• a second pipe having a first end external to the second elongated tank, said second pipe extending to the second elongated tank so that a second end of the second pipe communicates clear fluid to the third volume;
• a plurality of slurry valves fluidically coupled to the first elongated tank and the second elongated tank, said plurality of slurry valves having a first state, a second state and an intermediate state between the first state and the second state, wherein in the first state, said plurality of slurry valves communicating high pressure slurry from the second volume to the slurry injection site and communicating low pressure slurry to the fourth volume, wherein, in the second state, said plurality of slurry valves communicating low pressure slurry to the second volume and high pressure slurry from the fourth volume to the slurry injection site and in the intermediate state communicating high pressure slurry simultaneously from the first elongated tank and the second elongated tank to the slurry injection site;
• a first clear fluid valve, in the first state, communicating high pressure clear fluid from the high pressure pump to the first volume and, in a second state, communicating high pressure clear fluid to the third volume;
• a second clear fluid valve, in the first state communicating low pressure clear fluid from the third volume and in the second state communicating low pressure clear fluid from the first volume;
• and
• a pulsation damper disposed between the high pressure pump and the first clear fluid valve reducing a pressure reduction when the first clear fluid valve changes between the first state and the second state.