Greetings! I understand some of you are warmer than others today. We’ll warm up with a look at the terminology used to describe the many ways natural gas can hide from us in the ground, making it so hard for us to know how much is still down there. Let’s begin.
Natural gas Resource Base – This is the broadest classification of Natural gas estimates. According to the EIA (Energy Information Administration.) The Total Natural Gas Resource base includes the estimate for the entire volume of natural gas that is (or was) trapped in the earth before extraction.
We can break this down by where it is, whether or not we know it’s there, and whether or not we can get at it. Different people use different breakdowns.
Where it is:
Conventional Natural Nas – Natural gas that exists in the earth and is trapped in a “reservoir.” This is the setting we’re most familiar with, and the resource estimate with which we have the most confidence.
Unconventional Natural Gas – This natural gas assumes another form or is present in a peculiar formation that makes its extraction different from conventional approaches. Most of our estimated resource is in forms that are technically non-recoverable using current or foreseeable technology.
Whether we know it’s there:
Discovered Recoverable Resources – Reservoirs that geologists have actually located through exploration. These include current production, all past production, and the known gas that is remaining to be produced. When we speak of our “reserve,” this is what we refer to. We know it’s there, and we know how to get it.
Undiscovered Resources – Deposits that have not been pinpointed, but are generally expected to exist based on geologic conditions. The US Department of the Interior and the US Geological Survey (USGS) are responsible for estimating how much undiscovered recoverable natural gas there is in onshore areas and state governed offshore areas of the US, and the Minerals Management Service (MMS) is responsible for estimating the undiscovered natural gas in Federal offshore areas
How we’ll get it:
Recoverable Resources – The technology exists to make its extraction possible.
Non-Recoverable Resources – There is a great deal of natural gas located in very low concentrations throughout the earth’s crust and the technology does not exist, nor is it expected to come about in the near future, to effectively extract this gas.
Since every resource estimate is an “educated guess,” there are constant revisions being made. New technology, combined with increased knowledge of particular areas and reservoirs, mean that these estimates are in a constant state of flux.
Here is the bottom line: even though there are many different people using different definitions and terminology, most agree that there is at least as much technically recoverable natural gas remaining to be found in the earth as already been located to date. In other words, we haven’t peaked yet. The question for next week: Is Natural gas renewable, or essentially irreplaceable? Remember that the formation of natural gas takes thousands and possibly millions of years. However, technology has come a long way since 1859, when the first well for natural gas reached down just 69 feet below the surface of the earth. Do you remember who did it? Check last week’s newsletter.
Check the NYMEX