Petropedia explains Degree API If the Degree API of crude oil is greater than 45, it is considered as extra light crude oil. If the Degree API of crude oil is between 33 and 45, it is considered as light crude oil. If the Degree API of crude oil is between 22 and 33, it is considered as medium °API = Degrees API Gravity . SG = Specific Gravity (at 60 o F) Specific gravity can be calculated from API gravity: SG = 141.5 / (°API+131.5) (2) Note! Oil with the least specific gravity has the highest API gravity. SG - API Converter. SG - Specific Gravity °API. Density is a temperature depedent property. API gravity increases with increasing temperature, while specific gravity decreases with increasing temperature. Definition of API Gravity of water provided by WikiPedia: 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. Below is an overview of the four major crude oil classifications: Any crude oil with API gravity of over 31.1 degrees falls into the light crude oil category. 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.
14 Jan 2011 Crude oils with gravity > 33°API are considered as light crudes. Such degree of toxicity because exposures were not constant over time. To.
State-level data show the difference in crude oil API gravity in different parts of the country. For example, oil produced in Texas has a relatively broad distribution of API gravities, with most production ranging from 30–50 degrees API. Oil produced in North Dakota tends to be light (less dense). About 90% of North Dakota’s oil production has an API gravity of 40.1–50.0 degrees. California’s oil is mostly heavy (more dense), and more than 90% has an API gravity of less than 30 degrees. API FA-4 oils are designed to provide enhanced protection against oil oxidation, viscosity loss due to shear, and oil aeration as well as protection against catalyst poisoning, particulate filter blocking, engine wear, piston deposits, degradation of low- and high-temperature properties, and soot-related viscosity increase. Classifications or grades Light crude oil has an API gravity higher than 31.1° (i.e., less than 870 kg/m 3). Medium oil has an API gravity between 22.3 and 31.1° (i.e., 870 to 920 kg/m 3). Heavy crude oil has an API gravity below 22.3° (i.e., 920 to 1000 kg/m 3). Extra heavy oil has an API Crude oils that are light (higher degrees of API gravity, or lower density) and sweet (low sulfur content) are usually priced higher than heavy, sour crude oils. This is partly because gasoline and diesel fuel, which typically sell at a significant premium to residual fuel oil and other "bottom The API of crude oils varies typically between 10 and 50, with most crude oils falling in the range of 20-45. Using API gravity, the conventional crude oils can be generally considered as light (°API>30), medium (30>°API>22), and heavy (°API<22). About 90% of North Dakota’s oil production has an API gravity of 40.1–50.0 degrees. California’s oil is mostly heavy (more dense), and more than 90% has an API gravity of less than 30 degrees. Domestic crude oil production has grown rapidly since 2010, primarily because of light crude oil produced from low-permeability (tight) formations.
We offer all ranges that comply with API (American Petroleum Institute and The American Society of Testing Materials (ASTM) E100 standards, from -1 degrees
17 Feb 2011 With an API gravity of 38.3 degrees and 0.37% of sulfur, this blend of crude oil comes from 15 various oil fields in the North Sea. West Texas
°API = Degrees API Gravity. SG = Specific Gravity (at 60oF). Specific gravity can be calculated from API gravity: SG = 141.5 / (°API+131.5) (2). Note! Oil with the
22 Apr 2014 Changes in crude oil density and specific heat, or heat capacity, can be and oil samples are available and a high degree of accuracy is required. in specific gravity with temperature for crude oils of varying API gravity. American petroleum Institute's inverted scale for denoting the 'lightness' or ' heaviness' of crude oils and other liquid hydrocarbons. Calibrated in API degrees (or API's Weekly Statistical Bulletin (WSB) has reported total U.S. and regional data relating to refinery operations and the production of the four ma If an oil's API Gravity is greater than 10, it is lighter than water and will float on it. At the highest distillation temperatures—over 1,000 degrees Fahrenheit—the
API degree is used universally to express a crude's relative density. The arbitrary formula used to obtain it is: API gravity = (141.5/SG at 60°F) -131.5, where SG is
American petroleum Institute's inverted scale for denoting the 'lightness' or ' heaviness' of crude oils and other liquid hydrocarbons. Calibrated in API degrees (or API's Weekly Statistical Bulletin (WSB) has reported total U.S. and regional data relating to refinery operations and the production of the four ma If an oil's API Gravity is greater than 10, it is lighter than water and will float on it. At the highest distillation temperatures—over 1,000 degrees Fahrenheit—the Api Hydrometer found in: DURAC® API ASTM Hydrometers, Plain Form API ASTM gravity) of oil and petroleum products in various ranges from 9° to 81° API in Degrees API @ 60°F Made from heavy-walled, annealed tubing for maximum 20 Apr 2017 The API gravity for extracted crude varies across states, the U.S. Energy Information Administration said.
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. The API degrees indicate whether a crude oil floats on water or sinks. Light crude oils flow easily and contain more volatile components, while extra-heavy crude oils are highly viscous to nearly tar-like and show a higher density. Intermediate oils are between these extremes. API Gravity Correction for Temperature In this spreadsheet, just type in the required information and press the compute button. Scroll down for more info. Observed API Gravity. Temperature deg F. Corrected API @ 60 deg F . Corrected API Gravity for Temperature other than 60 deg F. API Service Categories. Whereas the labeling on the bottle of engine oil may suggest the product is a 5W-30, note, if there is no "W" between the 5 and the 30 it may not be a 5W-30. As an example, a 5-30 is not the same as an SAE 5W-30. The American Petroleum Institute (API) defined the API gravity (degrees API) to quantify the quality of petroleum products and crude oils. The API gravity is defined as Crude Oils API = 10 – 50, crude oils can generally be classified according to API as shown Degrees API (o API) = (141.5/SG) -131.5 Where, SG = Specific Gravity of the crude oil = density of oil/density of water If you know the API gravity that your client is dealing with (which you have not shared with us), then you can calculate the density of the crude oil easily: Specific Gravity of Crude = (141.5) / (o API +131.4) Candidates applying for API 571, 577 and 580 certification programs are no longer required to hold a current certification in API 510, 570 or 653. Similar to other API certification programs, applicants are required to have experience in the petrochemical industry.