| 摘要 |
A method of mixing fluids in a well bore employing a tubing string with a mixing valve disposed thereon. The well bore is sealed below the mixing valve, a first fluid then being pumped down the tubing string and a second fluid being pumped down the well bore annulus. By varying pressures and through the optional use of a circulating valve in conjunction with the mixing valve, the fluids may be mixed in the well bore or in the tubing string.
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