injection well

American  

noun

1. a deep well into which pressurized fluids are injected for waste disposal, to improve the recovery of petroleum, or in solution mining.

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injection well Scientific  

1. 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.

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Example Sentences

Mild-to-moderate injection site reactions were the most common side effect, but nearly all of these reactions resolved themselves within five days.

From Barron's • Apr. 20, 2026

Most MMR side effects are mild but the injection site can be red, sore and swollen for a few days.

From BBC • Jul. 16, 2025

They injected dye directly into mice’s brains via portals through their skulls and measured its concentration with a sensor in another part of the brain away from the injection site.

From Science Magazine • May 24, 2024

The most common side effects of Xolair are injection site reactions and fever, but the FDA noted that the drug has also been associated with joint pain, rash, parasitic infections, malignancies and abnormal laboratory tests.

From Seattle Times • Feb. 16, 2024

Using a second needle, Southam tattooed a tiny speck of India ink next to the small bump that formed at the HeLa injection site.

From "The Immortal Life of Henrietta Lacks" by Rebecca Skloot