16 votes

What is the most important source of natural gas? Coal, oil or other?

The most important source of natural gas is natural gas. This is why it is called natural. It is not "made" from oil or coal. Natural gas forms by decomposition of organic material. Whether the ...
Gimelist's user avatar
  • 23.1k
13 votes

Is it possible that the recent droughts are signs of epic crust failure?

Is it possible that the recent droughts are signs of epic crust failure? No. Even though your 5 points do not make much sense, I'll try to answer it anyway. There are no continental plates. There ...
Gimelist's user avatar
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9 votes

Are there probably decent oil fields located in the middle of the ocean?

Are there probably decent oil fields located in the middle of the ocean? tl;dr: no. Hydrocarbon deposits form by thermal maturation (i.e. slow and mild heating) of buried organic matter (i.e. dead ...
Gimelist's user avatar
  • 23.1k
8 votes

What is the age of the earth's oil?

Oil can be generated from pretty much anything organic. The oldest oil that I know of comes from a porous Eocambrian siltstone in the Sultanate of Oman. This was formed nearly 200 million years before ...
Gordon Stanger's user avatar
8 votes

Petroleum and coal formation

Coal, oil and gas can be found anywhere on Earth: on land and on sea. The Japanese once mined coal from beneath the sea floor, using Hashima Island as the base of operations. The island is only 6.3 ...
Fred's user avatar
  • 24.6k
6 votes
Accepted

How much oil was consumed worldwide since it was started to use massively in the mid 19th century?

Cumulative world oil production at the end of 2017 was approximately 1.36 trillion barrels.
Keith McClary's user avatar
6 votes

What is the age of the earth's oil?

The previous answer is actually correct in stating that fish have very little to do with oil formation. Hydrocarbons of a volume that is able to accumulate a reservoir that is economic to produce ...
blaydes's user avatar
  • 121
5 votes
Accepted

What would happen if magma flows into a very large oil deposit?

If there were an earthquake that somehow cause a crack in the earth and allowed a significant amount of magma to flow into a very large oil deposit. My understanding from this is that you are making ...
Gimelist's user avatar
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5 votes

What would happen if magma flows into a very large oil deposit?

An oil deposit is gravel and rock mixed with oil, capped by rock - like this: My guess is that if somehow, likely from below or sideways, magma would intrude into this deposit, oil (and posibly water)...
mart's user avatar
  • 1,244
5 votes

In the oil field, when a vertical cylinder coring sample is taken, how is the core severed at the bottom and removed from the formation?

Coring is an important method to get detailed information about the formations, however, it's very time-consuming and costive, so it's only applied when geologists and reservoir engineers need high-...
user2821's user avatar
  • 5,936
5 votes
Accepted

How to compare the oil production in barrel vs production in tons

I suspect that 3.75 million tons of oil is actually tons of oil equivalent (toe). This is a unit of energy rather than mass. The US uses a barrel of oil equivalent (boe) as a measure of energy. The ...
David Hammen's user avatar
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5 votes
Accepted

Will kerosene reserves deplete long before oil?

No. At the moment, we use cracking to turn heavy, long-chain hydrocarbons into more valuable short-chain hydrocarbons, such as petrol/gasoline and kerosene; as a general rule, lighter hydrocarbons ...
Andrew Jon Dodds's user avatar
5 votes

What is the most important source of natural gas? Coal, oil or other?

A significant part of the natural gas used around the world today comes from oil fields. On top of the oil is a layer of natural gas, and in the crude oil is dissolved natural gas. This will be ...
trond hansen's user avatar
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5 votes
Accepted

What are the prerequisites for petroleum geology?

I think the shortest fair answer is there are no special prerequisites beyond a general, high-school-level education in maths and science. It's a difficult question to answer directly, because ...
Matt Hall's user avatar
  • 11k
4 votes

How can I test my house water supply for hydrocarbon presence?

Chances are you do not have presences of fuel in your water. This sounds like you could have a few different things happening. First off, iron reducing bacteria can lead to significant corrosion. ...
C.M. Loomis's user avatar
4 votes
Accepted

Glossary of oil and gas industry geophysical terms

Sheriff's Encyclopedic Dictionary is the closest thing to a canonical text, but the Schlumberger glossary is more up to date. Sheriff is a scientific text, whereas the Schlumberger glossary is a ...
Matt Hall's user avatar
  • 11k
4 votes

How much oil is created each year?

Around 80,000 barrels per year? One way to have a rough estimate is to assume that the rate of oil formation has not changed since the Mesozoic. The vast majority of oil reservoirs formed during the ...
DrGC's user avatar
  • 1,723
4 votes

What is a "show" in petroleum geology?

A show is a visual indication of hydrocarbons, in the jargon of petroleum exploration, it is typically used to describe a drilling. It could be e.g. a Gas show in the drilling fluid. Show evaluation ...
user2821's user avatar
  • 5,936
4 votes
Accepted

Is or was there oil on Sakhalin?

Onshore oil deposits, on the island of Sakhalin have existed. The were discovered in 1928 by a Russian-Japanese venture. Oil production from onshore deposits began in 1930. There has been oil ...
Fred's user avatar
  • 24.6k
3 votes

How can I test my house water supply for hydrocarbon presence?

This question might be better suited for Chemistry or another place, and I'm not certain Earth Science is the place for it. Without being an expert on groundwater, water supplies, or hydrocarbons I ...
Gimelist's user avatar
  • 23.1k
2 votes

What is the age of the earth's oil?

I think that fish actually contributed very little to the oil. Oil is typically found in current or former sedimentary fans of rivers and other basins where sediments were deposited. The Gulf of ...
Wolfgang Bangerth's user avatar
2 votes

What are the natural causes for methane formation?

The 'natural causes' of global methane emissions are, as you indicate, mostly of biological origin. To some extent it depends upon what you regard as 'natural'. There are many and differing estimates ...
Gordon Stanger's user avatar
2 votes
Accepted

Estimating fracture pressure (looking for literature to support)

fracture formula What is the method of injection and fluid you are using? Apply a leak off test to the formation after drilling out casing shoe and your 5-10m into open hole. I’ve attached two links ...
Jeffrey Boettger's user avatar
2 votes

In the oil field, when a vertical cylinder coring sample is taken, how is the core severed at the bottom and removed from the formation?

Coring is not done continuously in oil drilling, but is done selectively when it is determined that the information obtained is worth the cost. As blacksmith37 notes the crushed rock flushed from the ...
verisimilidude's user avatar
2 votes

How can I test my house water supply for hydrocarbon presence?

While the best way to test for hydrocarbons in drinking water is to get a specialized test kit like the one you posted in your edit or to send a water sample to a lab, there might be a cheaper DIY way ...
Camilo Rada's user avatar
  • 17.6k
2 votes

What is the most important source of natural gas? Coal, oil or other?

The most important factor for petroleum becoming gas isn't a substance, it's temperature and pressure. Most reservoirs have varying degrees of both; the T&P dictates how much of each will form. ...
Mazura's user avatar
  • 495
2 votes
Accepted

What methods do geologists employ to detemine the age of a petroleum deposit?

Crude oil is a product of partial degradation of organic matter, e.g. of plants that lived long time ago. During photosynthesis, they constantly incorporate carbon (from $\ce{CO2}$) to accumulate ...
Buttonwood's user avatar
2 votes

What would eventually happen to untrapped petroleum?

Oil originally trapped in an oil reservoir, can, over millions of years, migrate laterally from one location to another, sometimes many tens of kilometers from the original reservoir. We may think of ...
Thomas Perry's user avatar
1 vote

What methods do geologists employ to detemine the age of a petroleum deposit?

They microscopically examine drill debris to determine if they are in the target formation , typically coral/marine shells. This is not done for all wells but for exploratory and step-out wells ( ...
blacksmith37's user avatar
  • 1,033
1 vote

Will kerosene reserves deplete long before oil?

There may be a language issue with this question or you are asking about something in a confusing way. By asking about kerosene "wearing out" do you mean wearing out like erosion & becoming ...
Fred's user avatar
  • 24.6k

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