To get credit for this Earthcache email the cache owner the answers to the following questions:
1. Permeability is ”the measure of the ease for which fluid can move through a porous rock”. Oil and gas is typically produced from sandstone, because sandstone has the permeability characteristics that allow oil and/or gas to move through the rocks under pressure in a subsurface environment. On the other hand, granites and clay typically do not easily flow oil or gas because they have low permeability characteristics. Look at the ground around the listed coordinates. Soil at the surface is not necessarily what is also at the subsurface section that produces oil and gas. Take a sample of the surface soil and examine whether it is sandstone, granite or clay. Is the surface soil sandstone, which would be conducive to oil and gas production or is it mainly clay or granite, which would not?
2. Visually estimate the length and width of the Conroe Crater. Assuming the Conroe Crater is 600 feet deep, estimate the volume of water in gallons within the crater assuming it is cube shaped and has a depth of 600 feet (use the formula of (length x width x depth) and 1 foot equals 7.48 gallons).
3. If this was oil, what would it be worth today (divide the gallons in question 1 by 42 and multiply it by $100 per bbl).
4. What is located on the other side of the road and what is the name of the company that operates it?
Optional: take your picture with the Conroe Crater in the background and post it with your log.
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