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Some wells can be produced without fraccing, but the production would be much lower and the well could not be kept on production for a sufficient period of time to pay back the investment.

For a well that is producing from a low permeability formation, the well can be drilled horizontally through the formation, for much higher production rates. This is commonly done when fracturing is not feasible, due to an overlying gas cap or underlying water zone.

Improved productivity is also possible through injection of acid, which will open up the natural pores through the chemical reactions. Both hydrochloric and hydrofloric acid are used.

In many case today, wells are drilled horizontally, and then fractured in sections, to produce the highest productivity. This is referred to as a "zipper frac."

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12y ago

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