About petroleum?

Question

We know that petroleum is made in a long proces from the dead bodyes of animals, in the absence of air. But i want to know, why humans didn't put this question: how did those animals get there, kilometers deep underground, and all in specific places, forming huge rezerves of petroleum??

Answer 1

Your first assumption, that oil is a product of animals, must be addressed first. Oil may be produced via two routes: biogenic oil (from living organisms) and abiogenic (not from living organisms). Although some oil is produced from both routes, in all likelihood, most oil comes from biogenic sources. See also reference 1 for a better explanation. With respect to the biogenic oil, most of it comes not from, say, dinosaurs, but rather from planktonic (free-floating) organisms that swam in the oceans.

When these critters die, they sink to the bottom, and are entombed by the slow deposition of material- including other plankton- over periods of thousands to millions of years. This process continues today, as anyone who has done any deep-sea work can attest.

As these sediments build up, they slowly de-water, forming into rock. Under the right conditions, the depth of burial in conjunction with compression from layers above causes the rock to be heated. If it doesn't heat up enough, kerogen is the result. If it gets too hot, natural gas is the product. Somewhere in the middle of a set of temperature and pressure parameters, you get oil.

Of course, that oil doesn't necessarily stay there; it can migrate hundreds of miles from the source rock, and we find traces of this oil in certain sediments. We know that it moves. We also know that it can be locked into certain structures underground, where there are layers of rock that offer low permeability to oil. It gets stuck kind of the same way water gets stuck in a puddle, but in reverse; the oil goes to the top of a dome, along with natural gas (sometimes) and water (usually). Drillers look for these structures, in conjunction with certain kinds of rock strata.

These formations may be hundreds or thousands of miles from any oceans, depending upon where the rocks formed, and all kinds of changes in geology that cause mountains to be formed, oceans to dry up, and other major shifts. We still find oil under water (Gulf of Mexico, North Atlantic, coastal Africa, etc.), and we also find it continentally (Alaskan North Slope, parts of Texas and New Mexico, etc.). You can get a lot of changes in just a few million years- which is how oil can turn up in the strangest places.

Anyway- read the article referenced below. It's pretty relevant, and educational in general.

Answer 2

Well plants and animals go into the makeup of oil. These plants and animals weren't just burried on land, but also at sea. River deltas as large as the Mississippi burry huge amounts of organic material. This all degenerates into oil over millions of years. The oil is lighter than the rest of the water in the rock and settles or floats up under "traps" in the rock. these traps are impervious to oil. We drill that oil and produce it. There has been a huge amount of burrial over the past 3 billion years or so.

Answer 3

Your premise is incorrect: petroleum does not comes from the bodies of dead animals. So where does it come from? The answer is not actually known, nor do we know the extent of oil reserves left on the planet. The Age of Geology has not yet begun.

Answer 4

Petroleum got produced by organismic leftovers that were buried due to geological disasters of the past, needing heat, pressure, and time. They're where the organismic residues happened to accumulate, for example where a huge swamp was buried in a landslide. Oil companies have very technologically sophisticated ways to find these places, then they drill for oil there.

Answer 5

your staggering decision is to apply a water depending lubricant. Petroleum depending products are harder to eliminate after wards, and can want to worsen tender mucous membranes with lengthy time period publicity.....KY is very secure, and is utilized in a medical placing for a form of ideas that require some type of lubricant. only be carefull down there, you may want to damage...........issues ....via having too hard

Answer 6

That is but one of several theories on the formation of oil....
There may be several ways in which oil reserves were formed.

Answer 7

If I told you the answer to your question, you would get a serious head ache trying to comprehend it. Better to ask questions that are not so complex.
You see the little thing that says " Check Spelling " ? Please get someone to explain what that is for.