Crude oil viscosity api

4 Jun 2015 Clearly, chemical composition, in addition to API gravity, plays a role in the viscosity behavior of crude oil. Fig. 1 shows the effect of crude oil  The figure is based on information from more than 120 crude oil assays from API - specific gravity; Centrifugal Pumps and Influence from Viscosity - When a  Light. Medium. Heavy. Extra Heavy. API Definition. Gravity. Gravity ≠ Viscosity. The term “Heavy Oil” is a reference to the high density. (API Gravity) of those oils.

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). Between 30° API and 11° API, the viscosity becomes more important, until in some cases it is impossible to process very low gravity crudes without a diluent to reduce the viscosity. The use of a diluent is not unusual for crude oil below 14° API. The following are useful to estimate oil viscosity if the API (i.e. density) is known. For 25° API oil expect an oil viscosity of about 10 cp and for 30° API about 6 cp.

1 Aug 2009 The sensitivity of friction pressure drop with the wall roughness factor was also demonstrated. In this TOTM, we will study crude oil °API and the 

Physical properties measured were: A.P.I. gravity, absolute viscosity at three temperatures, and oil-water interfacial tension. All the tests are reported in tabular   4 Jun 2014 These rates are valid for oils with API gravities ranging from 6.5 to 9.5, in order to accurately predict the viscosity of undersaturated extra-heavy  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  Articles, whitepapers and case studies for oil and gas facility managers, engineers Deg API: (applicable to crude oils from 12 to 40 Deg API) Viscosity ( cSt):. 1 Aug 2009 The sensitivity of friction pressure drop with the wall roughness factor was also demonstrated. In this TOTM, we will study crude oil °API and the  1 Oct 2009 Increasing °API or line average temperature reduces the crude oil viscosity. The viscosity reduction caused higher Reynolds number, lower 

Light. Medium. Heavy. Extra Heavy. API Definition. Gravity. Gravity ≠ Viscosity. The term “Heavy Oil” is a reference to the high density. (API Gravity) of those oils.

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°,

Crude oil viscosity as a function of API gravity [5]. With the dead oil viscosity at atmospheric pressure and reservoir temperature (either measured or obtained from Figure 1.9 ), the effect of solution gas can be estimated with the aid of Figure 1.10 [ 6 ].

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-  4 Jun 2015 Clearly, chemical composition, in addition to API gravity, plays a role in the viscosity behavior of crude oil. Fig. 1 shows the effect of crude oil  The figure is based on information from more than 120 crude oil assays from API - specific gravity; Centrifugal Pumps and Influence from Viscosity - When a 

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 

16 Oct 2018 Keywords: API gravity; crude oil; SARA fractions; ultrahigh resolution Determination of API gravity, kinematic viscosity and water content in  19 Apr 2017 The higher the API gravity, the lower the density of the petroleum liquid, so light oils have high API gravities. Based on the mix of their respective  17 Sep 2019 A library of ExxonMobil crude oil blends sorted by API gravity and by sulfur content. The viscosity of crude oils can be measured using a standard method (ASTM D2983). Knowledge Check. What are ASTM, ISO, IP? ‹ API Gravity up Pour Point ›. Physical properties measured were: A.P.I. gravity, absolute viscosity at three temperatures, and oil-water interfacial tension. All the tests are reported in tabular   4 Jun 2014 These rates are valid for oils with API gravities ranging from 6.5 to 9.5, in order to accurately predict the viscosity of undersaturated extra-heavy 

the viscosity of heavy crude oil as a function of temperature, and as a function of a simple correlating parameter that can be used for heavy-oil characterization. RUSSIAN EXPORT BLEND CRUDE OIL (REBCO) Specifications Corresponding to GOST TU 39-1623-93: Density API at 30 degrees C 0,870 API Gravity 32.00 Viscosity at 80 C, Max 16.0 Flash Point (in locked cubicle) Max 35 C. Pressure of saturated pours under 38°C kilopascal/mm mercury column 7/50 Paraffin ( contents in % ) 6,0 %. 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°, API CK-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.