Table of Contents
What is liquid shrinkage curve?
The liquid-shrinkage curves shows the shrinkage characteristics of this category of crude oils. The other associated properties of this type of crude oil are: Oil formation volume factor less than 1.2 bbl/STB.
What is shrinkage factor in crude oil?
The shrinkage value is simply the non-pressurized volume divided by the volume of the pressurized vessel (dead oil divided by live oil volumes). Petroleum table values can correct the non-pressurized volume to standard conditions (15°C or 60°F) although this is often not done, adding yet another error.
What is shrinkage in oil and gas?
The reduction in volume of the reservoir fluid caused by reduction in temperature and by the liberation of the natural gas as the pressure is decreased has been described customarily as the shrinkage of the oil.
What are the different grades of crude oil?
There are four types of crude oil: Class A, Class B, Class C, and Class D.
When a gas reservoir is underlain by oil the oil zone is called?
3. Gas-cap reservoir. If the initial reservoir pressure is below the bubblepoint pressure of the reservoir fluid, as indicated by point 3 on Figure 1-1, the reservoir is termed a gas-cap or two-phase reservoir, in which the gas or vapor phase is underlain by an oil phase.
How do you use shrinkage factor?
Subtract the final size from the original size to find the amount of the shrinkage. For example, if a felt square shrinks from 8 square inches to 6 square inches, subtract 6 from 8, resulting in 2 square inches of shrinkage. Divide the amount of shrinkage by the original size to find the shrinkage rate.
What is the best quality crude oil?
For example, West Texas Intermediate (WTI) is some of the best in the world and certainly the best crude oil produced on a large scale. The difference in crude oil types, meaning the difference in crude oil qualities, means that there is also a difference in the prices of different crude oils.
Who has the best quality crude oil?
When it comes to the top oil producing countries, Saudi Arabia is known for offering the best quality of crude oil.
What is the API gravity of water?
10°
… petroleum industry, however, uses the American Petroleum Institute (API) gravity scale, in which pure water has been arbitrarily assigned an API gravity of 10°. Liquids lighter than water, such as oil, have API gravities numerically greater than 10.