Definition - What does Acid Fracture mean?
An Acid Fracture(s) refers to a crack(s) that is (are) induced in an oil well using acids. An acid such as hydrochloric acid is injected in an oil well reservoir to enhance the permeability and stimulate the well to increase its production. This form of acid induced fracturing is common in carbonate rock formations, where acid fluids are injected at high pressure. Though this pressure is less as compared to hydraulic fracking, it still causes cracks in the rock formation, thus improving the production of the well.
Petropedia explains Acid Fracture
There are a variety of extraction methods that are used to enhance the production range of an oil well. Acid Fracture(s) is the frack(s) (fissure) that is (are) triggered inside an oil well by injecting reactive acid fluids. This technique is amongst many other techniques that are used in Enhanced Oil Recovery (EOR) methods. Also known as fracture acidizing, this technique utilizes acids such as hydrochloric acid in carbonate rock formations of an ageing well to stimulate and experiment with the production range. Using this methodology, the diluted acid fluids can stimulate the well to produce more oil and gas. Acid Fracturing is usually opted in the later stages of the production, mainly to stimulate the well.