Patent ID: 9575495
Date: 2017-02-21
CPC Classifications: E21B,F24H,G05D

Claim:
1. A method of heating water for use in fracturing an oil and/or gas producing formation, comprising the steps of: a) providing a heating apparatus for heating water to a temperature of at least about 40 degrees F. (4.4 degrees C.); b) receiving a water stream of cool or cold water at a mixer, the cool or cold water stream being at a temperature of less than a predetermined target temperature; c) the mixer having a first inlet that receives cool or cold water from the stream of step “b” and a first outlet that enables discharge of a substantially continuous stream which is a mix of cool or cold and hot water; d) the mixer having a second inlet that enables heated water to enter the mixer; e) adding heated water from the transportable heating apparatus of step “a” to the mixer via the second inlet; f) wherein the volume of water of step “b” is much greater than the volume of water of step “e”; g) wherein a selected proppant is added to the water discharged from the mixer after step “f”; and h) wherein the water and the proppant are transmitted into an oil and/or gas producing formation, wherein water flows substantially continuously from the first inlet to the first outlet during the fracturing process.