40 CFR § 147.1803
Existing Class I and III wells authorized by rule—maximum injection pressure
June 9, 2020
The owner or operator shall limit injection pressure to the lesser of:
(a) A value which will not exceed the operating requirements of §144.28(f)(3)(i); or
(b) A value for well head pressure calculated by using the following formula:
Pm = (0.8 − 0.433 Sg) d
where:
Pm = injection pressure at the well head in pounds per square inch
Sg = specific gravity of injected fluid (unitless)
d = injection depth in feet.
[49 FR 45308, Nov. 15, 1984]
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