# What Is API Gravity In Crude Oil?

## How is oil API 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 is an API report?

The American Petroleum Institute (API) and the U.S. Energy Information Administration (EIA) both provide weekly crude oil inventory reports. Oil inventory reports are indicators of the supply and demand for oil which impacts oil prices. The API is a trade association whereas the EIA is a governmental agency.

## What is API in fuel?

API Gravity, or The American Petroleum Institute gravity, is a measure of how light or heavy a petroleum liquid is compared to water. If a product has an API gravity of less than 10, it sinks.

## Does API gravity change with temperature?

API gravity increases with increasing temperature, while specific gravity decreases with increasing temperature. … This means that the volume of a petroleum liquid increases with increasing temperature, and that a density number always must be given with the measurement temperature.

## Which crude oil is best?

Light sweet crude oil is the most sought-after version of crude oil as it contains a disproportionately large fraction that is directly processed (fractionation) into gasoline (naphtha), kerosene, and high-quality diesel (gas oil).

## Which fuel has highest specific gravity?

The heavier (more specific gravity) the crude oil, the higher its C/H ratio. Paraffins have the highest heating value and the aromatics the least 5.4 MJ/kg. Propane higher heating value is 42.4 MJ/kg while benzene is 50.4 MJ/kg and difference is 0.8 kJ/kg (Table 2).

## What is fuel specific gravity?

For fuels, specific gravity can be determined by dividing the density of the fuel (in units of pounds per gallon) by the density of water (8.325 pounds per gallon). … So Supreme has a specific gravity of 0.715. If Fuel A has a lower specific gravity than Fuel B, Fuel A is said to be “lighter” than Fuel B.

## How do you use specific gravity?

The formula for specific gravity, given that the reference substance is water, is the density of the object divided by the density of the water.

## What is specific gravity of diesel?

2 diesel fuel is between 30 and 42. The specific gravity, at 60/60°F, and the density, at 15.6°C, are between 0.88 and 0.82.

## What does oil API mean?

American Petroleum InstituteThe API designation in motor oil stands for the American Petroleum Institute. The API is the largest oil and gas industry trade organization. … API’s outreach covers not only the oil and gas industry, but also any industry that has an impact on the petroleum interests.

## How many types of crude oil are there?

fourWhen oil spills do occasionally occur, each oil poses different challenges and priorities during the cleanup. With that said, the four main types of Crude Oil are: Very light oils – these include: Jet Fuel, Gasoline, Kerosene, Petroleum Ether, Petroleum Spirit, and Petroleum Naphtha.

## What is the API gravity of heavy oil?

Light oil is characterized by an API gravity of at least 22°, and extra-heavy oil has an API gravity of less than 10°.

## What is API gravity and how is it calculated?

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. The arbitrary formula used to obtain this effect is: API gravity = (141.5/SG at 60 degF) – 131.5, where SG is the specific gravity of the fluid.

## What is API gravity used for?

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.

## Which country has the best crude oil?

The United StatesThe United States is the top oil-producing country in the world, with an average of 19.47 million barrels per day (b/d), which accounts for 19% of the world’s production. 1﻿ The U.S. has held the top spot for the past six years. The U.S. overtook Russia in 2012 for the No.

## Where is sweet crude oil found?

Major locations where sweet crude is found include the Appalachian Basin in Eastern North America, Western Texas, the Bakken Formation of North Dakota and Saskatchewan, the North Sea of Europe, North Africa, Australia, and the Far East including Indonesia.

## What is the specific gravity of crude oil?

Specific gravities for some common fluids like acetone, alcohol, turpentine, oil and more ..ProductTemperatureSpecific Gravity SG 1)oFCrude oil 48o API60 1300.79 0.76Crude oil 40o API60 1300.825 0.805Crude oil 35.6o API60 1300.847 0.824113 more rows

## What is API unit?

1. n. [Formation Evaluation] The unit of radioactivity used for natural gamma ray logs. This unit is based on an artificially radioactive concrete block at the University of Houston, Texas, USA, that is defined to have a radioactivity of 200 American Petroleum Institute (API) units.

## Is crude oil a heavy oil?

Heavy crude oil (or extra heavy crude oil) is highly-viscous oil that cannot easily flow to production wells under normal reservoir conditions. It is referred to as “heavy” because its density or specific gravity is higher than that of light crude oil. … Heavy oils and asphalt are dense nonaqueous phase liquids (DNAPLs).

## Is diesel a heavy oil?

Heavy oil is diesel, it cannot be a 4.6 running on diesel. If the V5 says 4.6 litre and fuel is heavy oil something is wrong.

## Is higher API oil better?

A crude oil will typically have an API between 15 and 45 degrees. Higher API indicates a lighter (lower density) crude. Lower API indicates a heavier (more dense) crude. Generally, lighter (high API) crudes are more valuable because they yield more high-value light products when run through a refinery.