Crude oil viscosity measurement

Predicting and Measuring Viscosity of Crude Oil Blends June 20 – 22, 2012 Kananaskis, Alberta Joint CCQTA/COQA Meetings Branko Banjac

Oil viscosity. Absolute viscosity provides a measure of a fluid’s internal resistance to flow. For liquids, viscosity corresponds to the informal notion of "thickness". For example, honey has a higher viscosity than water. Any calculation involving the movement of fluids requires a value of viscosity. Predicting and Measuring Viscosity of Crude Oil Blends June 20 – 22, 2012 Kananaskis, Alberta Joint CCQTA/COQA Meetings Branko Banjac Determination of the pour point temperatures of crude oils down to − 36°C. Procedure A provides a measure of the maximum (upper) pour point temperature. Procedure B provides a measure of the minimum (lower) pour point temperature. The use of this test method is limited to use for crude oils. In 2010, the World Energy Council defined extra heavy oil as crude oil having a gravity of less than 10° and a reservoir viscosity of no more than 10,000 centipoises. When reservoir viscosity measurements are not available, extra-heavy oil is considered by the WEC to have a lower limit of 4° °API. The measurement of Crude Oil and Viscous fluids requires rugged and reliable metering equipment. While high viscosity flow measurement proves to be difficult for most flow meters, Liquid Controls positive displacement (PD) flowmeters provide a solution for metering flow rates of viscous products up to 1,500,000 SSU. Viscosity is an important characteristic of crude oil. Different API gravities of 6 oil samples ranging from 13.4 to The current viscosity measured at the temperature and pressure ranges from 20 to 140°C and from 14.7 to These measurements are determined by using the quartz process viscometer apparatus. 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

The viscosity of a crude oil affects our ability to pump it out of the ground; the viscosity and volatility of a fuel affect how easy it is to atomize in the fuel injector; the viscosity of a lubricant affects its ability to protect an engine.

Stating an oil’s viscosity is meaningless unless the temperature at which the viscosity was measured is defined. Typically, the viscosity is reported at one of two temperatures, either 40°C (100°F) or 100°C (212°F). For most industrial oils, it is common to measure kinematic viscosity at 40°C Viscosity is an important characteristic of crude oil. Different API gravities of 6 oil samples ranging from 13.4 to The current viscosity measured at the temperature and pressure ranges from 20 to 140°C and from 14.7 to These measurements are determined by using the quartz process viscometer apparatus. Viscosity is a measure of a fluid’s resistance to flow. It is one of the most important properties of a fluid and plays a prominent role in the petroleum industry. The viscosity of crude oil affects our ability to pump it out of the ground; the viscosity and volatility of a fuel affects how easy it Oil viscosity. Absolute viscosity provides a measure of a fluid’s internal resistance to flow. For liquids, viscosity corresponds to the informal notion of "thickness". For example, honey has a higher viscosity than water. Any calculation involving the movement of fluids requires a value of viscosity.

It is one of the most important properties of a fluid and plays a very prominent role in the petroleum industry. The viscosity of a crude oil affects our ability to pump 

5 Sep 2016 Viscosity testing of crude can be measured at laboratory at reservoir temperature, and/or it can be obtained by estimating a proper model of  30 Nov 2015 7.2 MEASURING THE YIELD STRESS OF A WAXY CRUDE OIL . The fluids with viscosity independent of the shear rate and flow history are  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) Oil with a viscosity that does not change much between 40°C and100°C will have a higher VI than an oil with a greater change in viscosity. The Viscosity Index Test (ASTM D 2270) is based on the Kinematic viscosity of the oil at 40°C (104°F) and 100°C (212°F). Viscosity index numbers above 95 are considered high. Oils with a high VI The viscosity of a crude oil affects our ability to pump it out of the ground; the viscosity and volatility of a fuel affect how easy it is to atomize in the fuel injector; the viscosity of a lubricant affects its ability to protect an engine. Stating an oil’s viscosity is meaningless unless the temperature at which the viscosity was measured is defined. Typically, the viscosity is reported at one of two temperatures, either 40°C (100°F) or 100°C (212°F). For most industrial oils, it is common to measure kinematic viscosity at 40°C

Predicting and Measuring Viscosity of Crude Oil Blends June 20 – 22, 2012 Kananaskis, Alberta Joint CCQTA/COQA Meetings Branko Banjac

with average deviations varying from 24.2 per cent for gas-free crude oil to as little as 2.7 per cent for undersaturated crude oil "above the. Viscosity is a measure 

An understanding of the key controls on dead oil viscosity measurement and methods for correction of what form water and solids exist in a crude oil sample .

19 Jun 2012 Crude oils are a very complex combination of hydrocarbons. ▫ Not fully characterized compared to fuels and petroleum products. ▫ Lack of  4 Jun 2015 Absolute viscosity provides a measure of a fluid's internal resistance to Dead or gas-free oil viscosity is determined as a function of crude oil  2 Jun 2015 Density and viscosity measurements. The dynamic viscosity, μ, of 30 dead crude oil samples in the temperature range from 20 to 160 °C was 

An understanding of the key controls on dead oil viscosity measurement and methods for correction of what form water and solids exist in a crude oil sample . Therefore, the aims of this research are to measure the viscosity of oil an emulsion the transportability/transportation of heavy/viscous crude oils Journal of  with average deviations varying from 24.2 per cent for gas-free crude oil to as little as 2.7 per cent for undersaturated crude oil "above the. Viscosity is a measure  The correlation has been shown to successfully predict the viscosity-temperature relationship of light petroleum crude based on a single viscosity measurement at. It is a tremendous responsibility and managing leaks in large crude oil pipelines is no easy task. It requires highly trained engineers, reliable instrumentation and