Where did the oil come from in my water well?

A water well was drilled on my site in 2019. Depth 33 mm. Water in sandy layers. Those who have been reading this channel for a long time should remember the process of pumping it from sand with pumps of the "Kid" type, which I describe. The well has not yet been equipped, the caisson has not been installed - the pipe sticks out above the surface of the earth. At the end of the season, I pull the pump out of the well. And this time I saw this picture on the hoses:

The part of the hose length closer to the pump was covered with a black coating. Oily film similar to fuel oil or oil. Above in level, the hoses were covered in rust. This is understandable, there is a lot of iron in the water and near the water mirror, where there is more oxygen, the oxidation process is more intense, and rust precipitates.

One would think that some oil products got into a well or a water vein. But this is out of the question. There is no gas station nearby. And rain and melt water did not get into the annulus. Then, it turns out that the water reservoir communicates with oil outlets? And this is closer to the truth.

The main explanation for this fact is that the water vein is located next to the coal seams. The fact is that our region is the territory of the Kansk-Achinsk coal basin with huge deposits of brown coal:

There are deposits, but there are thin veins of this coal in the vast territories of Eastern Siberia. And they often intersect with aquifers or run parallel. This is also observed in the area of ​​our village (35 km from Krasnoyarsk).

Water washes away the coal mass and if you do not pump out water for a long time, then it settles in the well on the hoses. Plaque is like a film of oil. And in the 2020 season. because of the rainy summer, I rarely pumped the well. The water is still not clear yet.

When you put water into barrels, a thin oily film forms on it a day later. These are traces of coal in the water. Water is rich in not only iron but also manganese. And without ion exchange filters, aeration, it cannot be used in the water supply system.

There is another hypothesis that says that coal is not the fossilized remains of ancient forests, but oil outflows from the depths that spilled over the surface and permeated the earth's strata. The so-called abiogenic hypothesis of the origin of coal. Coal is the petrified outcrops of oil that have infiltrated the rock. Somewhere bituminous sands were formed (as in Canada), and somewhere coal deposits.

Interesting Facts: some oil wells, which previously ran out of oil, are re-filled with oil. And the sulfur content in coals is several times higher than in trees. Coal is also found at 2-3 km depth. How the trees could have got there is difficult to explain.

According to this hypothesis, water also comes out of the bowels, feeding rivers and lakes. The fact that there are huge reserves of fresh water in the bowels is no secret for geology. A prime example is the underground seas in the Sahara. In Libya, under Gaddafi, they built artificial rivers in concrete pipes, pumped water from the depths and irrigated fields.

Perhaps, somewhere the outlets of water and oil intersect.

At one time, he gave water from a well in his small homeland (300 km from Krasnoyarsk) for analysis to a laboratory. Traces of oil products were found in it. Then I did not understand where they were from. Now everything has become clearer. But this is only an unrecognized hypothesis, although it can explain a lot ...

In the case of the well, I believe that it is still coal. The oil would leave a film on the surface of the water and the bottom of the hoses would be clean.

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Self-builder blog (c). Photos by the author

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Self-builder blog (c). Photos by the author

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