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What does HPI stand for?

HPI stands for High-Pressure Injection

This definition appears frequently and is found in the following Acronym Finder categories:

  • Military and Government
  • Science, medicine, engineering, etc.

See other definitions of HPI

Other Resources:
We have 209 other meanings of HPI in our Acronym Attic

Samples in periodicals archive:

Fracking -- the high-pressure injection of water, chemicals, and sand to fracture underground rock formations and release trapped natural gas and oil -- along with advances in horizontal drilling, has made it possible to unlock large new reserves of oil and gas from shale formations in the U.