Thursday, August 1, 2019

Are oil fields recharged from the depth?

According to Thomas Gold, oil and gas are practically inexhaustible.

When a new oil or gas field is explored, a pressure drop resulting from a given volume of production is routinely observed. The measurement of this change is used to estimate the total oil reserves accessible to that well. In addition to other farms worldwide, these reserve estimates serve as a basis for defining oil exploration campaigns, and to some extent, the economic prospects of producing countries and the world economy in general. However, it turned out that over the course of a few years, these estimates are almost always much lower than actual production.
This erroneous prediction profoundly affects the prices of hydrocarbons and through them, the distribution of wealth among nations.
According to the abiotic theory, if oil and gas are flowing up from deeper levels (and therefore higher pressure), their rise cannot be stopped by any seal rock, however competent that rock is.
There is no rock that can maintain a liquid that comes out with a pressure greater than that exerted by the weight of the overload. A seal rock will result in a concentration of fluids below it, but the flow rate will eventually be restored to a value equal to the flow rate at the depth source. The flow through a rocky obstruction is, therefore, like that of a river crossed by a dam. The dam results in the formation of an upstream lake, but after the lake has filled, the flow rate resumes. The same volume of water as before the construction of the dam will flow over the dam.
If oil and gas have risen from below, we can expect a vertical series of the deepest reservoirs sequenced below the producing field. If, now, the upper domain sees its fluid pressure decreased by oil and gas production, then the pressure difference on the other side of the low permeability seal-layer will automatically increase. Therefore the transport of fluid through that layer will accelerate. When the balance of delicate pressure between the rock and the liquid has been changed, the pressure in the upper field will be replenished at a speed that will be determined by the flow from below, that way you can access the reserves (which can be a lot greater than those in the upper field) which have not been accessed directly. Over time, at a slow pace given by progressive deformation in the rock, the stepped pressure pattern will adjust its levels to the new pressure situation.
In other words, without drilling deeper, we can take advantage of deeper reserves that may well be much larger than the deposit in production.
The phenomenon of oil deposits that seem to fill themselves naturally is widely referenced in the Middle East and along the US Gulf Coast.
I consider these facts to be evidence of the abiotic theory of hydrocarbon genesis. "
Thomas Gold, The Deep Hot Biosphere, 2001, Copernicus Books
More information in the book "Unexhaustible?, Oil and Natural Gas", D.Anton, Piriguazú Ediciones




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