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Gas Storage

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Gas Storage
With the ever growing reserves of natural gas being discovered, production of this fossil fuel is at an all-time high. Production of natural gas in the US has increased year over year for the past 11 years up to about 29 million cubic feet in 2015. With this surplus in supply, produced gas must be stored until it’s needed. There are 3 main areas where gas can be stored for longer durations once brought to surface. These 3 areas are depleted gas reservoirs, which make up about 85-90% of storage, aquifers and salt caverns. “Typically, the turn-over rate for natural gas in these facilities is a year; natural gas is generally injected during the summer (non-heating season), which usually runs from April through October, and withdrawn during the winter (heating season), usually from November to March.” (naturalgas.org). Unfortunately, this year that wasn’t the case. Due to the relative warm winter in the US, gas wasn’t needed as much as in years past and gas withdrawal from storage was at one of the lowest points in Pennsylvania history. If you pair that with record production, you can understand why the natural gas industry has been hit so hard recently.

Depleted Gas Storage Fields
In general these are the most common and cheapest ways to store gas. They can date back in the US all the way to 1930. These storage wells are just wells that had already been drilled and had the gas brought to the surface. This helps with the storage for a few reasons. First, the equipment for the most part is already in place to inject the gas back into the ground. They don’t require more drilling, but just a few modi'ca(ons to the casing and wellhead to allow for gas to be pumped in. Also, because you know that you were able to get gas out of the drilled forma(ons, it shouldn’t be a problem to inject that gas back into the rock and it should

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