Mr. Erik Milito - The House Committee on Natural Resources ...

HYDRAULIC FRACTURING OPERATIONS—WELL CONSTRUCTION AND INTEGRITY GUIDELINES 19
1. Centrifugal pump draws pre mixed
gel from the frac tank and delivers it
to the blender tub.
2. <strong>The</strong> “suction rate” is
measured by turbine meter.
Data is sent to computers
via serial cable.
<strong>The</strong> deck engine provides
hydraulic power to the
blender tub and sand
augers. Approximately
500 hp.
From frac tanks.
Transducer
sends pressure
data to
computer
via serial cable.
To wellhead
6. <strong>The</strong> “slurry rate” is measured by
turbine meter. Data is sent to
computers via serial cable.
5. Centrifugal pump draws slurry
from the blender tub and delivers
it to the triplex pump.
4. <strong>The</strong> blender tub mixes
the gel and sand. <strong>The</strong> mix
is called “slurry.” Tub level
sent to computer via
serial cable.
3. <strong>The</strong> sand augers
deliver sand to the
blender tub. <strong>The</strong> RPM
of each auger is
measured. Data is sent
to computers via
serial cable.
8. Triplex pump delivers high pressure/rate slurry to the
well. Capable of deivering 1300 hp.
7. Triplex pump engine delivers power, through the transmission, to the
triplex pump. Approximately 1500 hp.
Figure 8—Schematic of Typical Fracturing Process