The Trenton/Blackriver well was drilled to 14,989.
Overcooked (overmature) is when a formation has been (at some point in its burial history) subjected to temperatures sufficiently high as to destroy the hydrocarbons present, such that little (if any) gas or oil will be produced.
So how come drilling companies find oil and gas in wells down 18 or 20 thousand feet, if depth and pressure cook out all of the good stuff? Seems like oil would be as precious as gold by now if that were the case.
Hi Tom. No wells in the units controling the farm yet. Dad's back is limiting him some now, but he still hunts and guides as much as he can. I think I might be using a 16 gauge that once belonged to you.
I just invited you as a friend on this site because it is more appropriate for these conversations. I also just got off of the phone with Dad and mentioned your name.
Polly wants a cracker, but doesn't have anything more to say I guess. A previous entry on this post mentioned salt formations, faults, and the Blackriver/Trenton. All of these features can be condusive to trapping hydrocarbons in my very limited understanding and research. I guess this is information not yet parroted on this site. Shell has Tioga County almost completely locked up, so I cannot imagine how supressing such information could benifit anyone. I suppose if investment companies wanted to buy mineral rights cheaply, or even pieces of land, from disilusioned land owners in the county, nay saying the potential for better things to come in the county would be a good stratagy. I suppose if investers in Ohio wanted to keep the money and interest flowing there, any wet blanket thrown on the northern tier of Pa. or the southern tier of New York, if and when that is opened up for drilling again, would be a good plan. I think Shell has enough money probably not to need to worry about attracting investers in a new strata in a new area which they already control.
You are correct about trapping mechanisms... but wrong setting. In a conventional system, faults, salt, shales, and structure are of critical importance for trapping a mobile hydrocarbon in place. However, in the unconventional world of shale gas/oil, your source rock is your reservoir is your trap is your seal. The whole reason we need to stimulate (hydraulically fracture) these rocks is the hydrocarbons can't effectively migrate out, and therefore you don't need to worry about trapping mechanisms.
Area Man thank you for your explaination,but I have a question how would the hydro carbon being trapped in the shale affect the maturity process? thank you
Somewhat independent, except in this case the hydrocarbon maturity is tied to the geologic history of the shale. If they were able to migrate, the maturity could be different than the reservoir where there are today. Otherwise, maturity is a function of kerogen type, temperature and pressure.
Thank You for your answer,I I understand the maturity principles would be basicly the same in a tight shale as a reservoir?