a deep well into which pressurized fluids are injected for waste disposal, to improve the recovery of petroleum, or in solution mining.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
A deep well into which water or pressurized gas is pumped in order to push petroleum resources out of underground reservoirs toward production wells so as to increase their yield.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.