How is oil API gravity calculated?
The formula for API gravity is API = (141.5/SG) -131.5 where SG is the specific gravity of the petroleum liquid being measured. For example, for an API gravity of 50, add 131.5 to obtain 181.5. Divide 141.5 by (131.5 + API gravity) to obtain the specific gravity of the oil.
What does API measure with oil?
API gravity is a commonly used index of the density of a crude oil or refined products. API stands for the American Petroleum Institute, which is the industry organization that created this measure. A crude oil will typically have an API between 15 and 45 degrees. Higher API indicates a lighter (lower density) crude.
What is the API gravity of WTI?
39.6 degrees
As was mentioned earlier, WTI is a lighter and sweeter crude with an API gravity of 39.6 degrees and a sulfur content of 0.24%.
What is API specific gravity?
A specific gravity scale developed by the American Petroleum Institute (API) for measuring the relative density of various petroleum liquids, expressed in degrees. API gravity is gradated in degrees on a hydrometer instrument and was designed so that most values would fall between 10° and 70° API gravity.
What is a good API gravity?
Generally speaking, oil with an API gravity between 40 and 45° commands the highest prices. Above 45°, the molecular chains become shorter and less valuable to refineries.
Why is API gravity used instead of specific gravity?
API gravity is thus an inverse measure of a petroleum liquid’s density relative to that of water (also known as specific gravity). It is used to compare densities of petroleum liquids. For example, if one petroleum liquid is less dense than another, it has a greater API gravity.
What is the specific gravity of crude oil?
Specific Gravity Resource
| Liquid | SG @ 60°F / 15.6°C |
|---|---|
| Beer | 1.01 |
| Carbon Tetrachloride CCl4 | 1.59 |
| Corn Oil | 0.924 |
| Crude Oil | 0.79 – 0.86 |
Why is Brent oil higher than WTI?
Why is Brent crude more expensive than WTI? Simply put, the preference for Brent crude today stems from the fact that it may be a better indicator of global oil prices. Brent essentially draws its oil from more than a dozen oil fields located in the North Sea.
What does API gravity measure?
A measurement convention established by the American Petroleum Institute for expressing the relative density of petroleum liquids to water; the greater the API gravity, the less dense the material.
What is the specific gravity of 38 degree API oil?
API Gravity to Specific Gravity and Density Chart:
| Degree API. | Specific Gravity. | Density (kg/m3). |
|---|---|---|
| 35 | 0,850 | 849,850 |
| 36 | 0,845 | 844,776 |
| 37 | 0,840 | 839,763 |
| 38 | 0,835 | 834,808 |
What does API gravity stand for?
Industry indicator. API gravity is short for American Petroleum Institute gravity, an inverse measure that is used to determine the weight of petroleum liquids in comparison to water.
What is meant by API gravity?
The American Petroleum Institute gravity, or API gravity, is a measure of how heavy or light a petroleum liquid is compared to water: if its API gravity is greater than 10 , it is lighter and floats on water; if less than 10, it is heavier and sinks. API gravity is thus an inverse measure of a petroleum liquid’s density relative to that of water (also known as specific gravity ).
What is the density of API?
Density API. Density operates as a people counter platform. The Density API supports the counting, recording, and monitoring of people traffic in particular locations in public or private domains. This includes business premises, public facilities, schools, and security installations, among others.
How do you convert API gravity to density?
The formula can be reversed to find the density of the petroleum liquid. Add 131.5 to the API gravity. The formula for API gravity is API = (141.5/SG) -131.5 where SG is the specific gravity of the petroleum liquid being measured. For example, for an API gravity of 50, add 131.5 to obtain 181.5.