How do you calculate the API gravity of crude oil?
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 is the API gravity value of the oil?
between 15 and 45 degrees
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 specific gravity of crude oil?
Specific gravities for common fluids like acetone, alcohol, turpentine, oil and more.
| Product | Temperature oC | Specific Gravity SG 1) |
|---|---|---|
| Crude oil 48o API | 15.6 | 0.79 |
| Crude oil 48o API | 54.4 | 0.76 |
| Crude oil 40o API | 15.6 | 0.825 |
| Crude oil 40o API | 54.4 | 0.805 |
What is API scale?
the American Petroleum Institute gravity scale: a universally accepted scale of the relative density of fluids that is used in fuel technology and is measured in degrees API. One degree API is equal to (141.5/d)–131.5, where d = relative density at 288.7 K. See also Baumé scale.
What is API gravity scale?
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. It is used to compare densities of petroleum liquids.
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 does API gravity of oil is 14 mean?
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.
How do you calculate specific gravity in bulk?
The bulk specific gravity of a compacted asphalt mix specimen is determined by computing the ratio of its mass in air to its bulk volume.
How do you calculate specific gravity of aggregate?
Apparent Specific Gravity of Aggregates: It is calculated by measuring the weight of the oven-dry aggregate divided by its absolute volume excluding the natural voids in the aggregate particles.
How do you calculate the gravity of crude oil?
The official formula used to derive the gravity of petroleum liquids from the specific gravity (SG), as follows: API gravity = 141.5/SG – 131.5. The relative density of petroleum liquids can also be uncovered by using API gravity value: RD at 60 o F = 141.5 / (API gravity + 131.5) A key formula for establishing barrels of crude oil per metric ton
How many barrels of crude oil are in a ton?
1 ton of crude oil = 1 metric ton of crude oil = appr. 7.3 barrels of crude oil (assuming a specific gravity of 33 API) = 6.6-8.0 bbl. of crude oil with 7.333 bbl.
What is the API gravity of medium crude oil?
Oils with API gravity falling between 22.3 and 31.1 degrees are classed as medium crude oils. Heavy crude oils have API gravity of under 22.3. Also referred to as bitumen, extra heavy crude oils have API gravity of below 10.0 degrees.
How do you calculate the price of crude oil?
Given that the weight of an oil plays an integral role in establishing its market value this formula is incredibly important! Barrels of crude oil per metric ton = 1 / [141.5 / (API gravity + 131.5) x 0.159] API gravity classifications and grades In general oils with API gravity of 40 – 45 generate the highest market prices.