Crude oil viscosity api
8 Feb 2020 There are two crude oil inventory reports released each week in the United States. One is from the American Petroleum Institute (API) and the barrels of crude oil per metric ton=1÷[141.5API gravity+131.5×0.159]. medium density crude oils. Heavy oil (API < 20) and extra heavy oil (API < 10) have high proportion of asphaltenes and paraffins compared to low molecular. Crude oil's viscosity can vary from a low-viscosity liquid to up to tar-like, nearly solid form. Classification according to the API degree: Light crude oil: API gravity higher than 31.1 °API (less than 870 kg/m³) Medium crude oil: API gravity from 31.1 °API to 22.3 °API (870 to 920 kg/m³) Dead or gas-free oil viscosity is determined as a function of crude oil API gravity and temperature. The viscosity of the gas saturated oil is found as a function of dead oil viscosity and solution gas-oil ratio (GOR) .
14 Feb 2014 Understanding crude oil's complicated grading system is the first step for to tar- black; in viscosity (most easily defined as the thickness of a liquid) from If the API gravity is greater than 10, the petroleum liquid is lighter and
Definitions. Petroleum Types: Light oil, also called conventional oil, has an API gravity of at least 22° and a viscosity less than 100 centipoise ( 18 Mar 2019 Tar sands (also called bituminous sands and oil sands) have, the resource volumes of heavy oil and bitumen, viscosity of the oil should be generally corresponding to a specific gravity of less than 10° API at 60°F (16°C). 14 Jan 2011 Crude oils with gravity > 33°API are considered as light crudes. Such as mg/l) are reported along with viscosity (vis=c.p @ 20°C) and density. Although variously defined, the upper limit for heavy oil is 22° API gravity with a viscosity of 100 cp (centipoise). The American Petroleum Institute's "API gravity" 4 Aug 2014 Bakken crude is a light sweet crude oil with an API gravity generally the oil and water in part by lowering the viscosity of the oil, which aids in Laboratory testing of a particular oil at various temperatures is the most reliable method As a rule, with crude of 30° API and higher the viscosity is so low that
1 Oct 2009 Increasing °API or line average temperature reduces the crude oil viscosity. The viscosity reduction caused higher Reynolds number, lower
barrels of crude oil per metric ton=1÷[141.5API gravity+131.5×0.159]. medium density crude oils. Heavy oil (API < 20) and extra heavy oil (API < 10) have high proportion of asphaltenes and paraffins compared to low molecular. Crude oil's viscosity can vary from a low-viscosity liquid to up to tar-like, nearly solid form. Classification according to the API degree: Light crude oil: API gravity higher than 31.1 °API (less than 870 kg/m³) Medium crude oil: API gravity from 31.1 °API to 22.3 °API (870 to 920 kg/m³) Dead or gas-free oil viscosity is determined as a function of crude oil API gravity and temperature. The viscosity of the gas saturated oil is found as a function of dead oil viscosity and solution gas-oil ratio (GOR) . API Gravity API gravity express the gravity or density of crude oil and liquid petroleum products. API is devised jointly by the American Petroleum Institute and the NIST - National Institute of Standards and Technology. The measuring scale is calibrated in terms of degrees API. Crude oil viscosity as function of gravity. Viscosity at 20°C/68°F and 50°C/122°F for more than 120 crudes is shown as function of specific gravity@15°C/60°F. Sponsored Links. The figure is based on information from more than 120 crude oil assays from BP, ExxonMobile and Statoil (2008 - 2017).
Dead or gas-free oil viscosity is determined as a function of crude oil API gravity and temperature. The viscosity of the gas saturated oil is found as a function of dead oil viscosity and solution gas-oil ratio (GOR) .
The most common definition of heavy crude oil is crude oil with API gravity less than 20, according to the International Energy Agency (IEA) and US geological survey (USGS). Viscosity and density play very important roles in oil production, transportation through pipelines, and oil recovery processes.
Crude Oil @ 35 F with SG .85 (API 34.971) By the equation it has a viscosity of 241 cP, but the info i looked up gave a viscosity of 9.2 cP. Just wondering if you, or anyone could explain this (giant) difference.
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 The definition of specific gravity for gases is somewhat different. Crude oil with API gravity less than 10° is referred to as extra heavy oil or bitumen. Bitumen derived from oil sands deposits in Alberta, Canada, has an API gravity of around 8°. It can be diluted with lighter hydrocarbons to produce diluted bitumen, which has an API gravity of less than 22.3°,
Both a crude oil's viscosity and its API (American Petroleum Institute) degree are important parameters for classification. Crude oil's viscosity can vary from a low-