Lines are for feed temperatures of 15.6 and symbols are for 43.3 C (60 and 110). Under such an approximation, the transverse velocity (viscous wave) at normal temperature and pressure conditions amounts to 812.2 m s-1 in sample I and 803.6 m s-1 in sample II. Tertiary recovery is also called “enhanced oil recovery” (EOR) or “improved oil recovery” (IOR). Recently a number of research papers on Middle East crude oil have been published in the special issue of the J. The high frequency generator excites the quartz crystal at the bottom of the measuring cell at its resonant frequency to generate ultrasonic waves in the experimental liquid. Check out the latest downloads available in the File Library. Figure 5 presents the variation of oil relative density along the line as a function of solution gas (RS) and temperature. I have been steered towards looking at ASTM standards and API standards. You have 1000 m3 of a fuel oil with a density of 960 kg/m 3 at 15°C. Error Analysis Of Log Mean Temperature Difference, Cascade Controller On Two Temperature Transmitters, How To Evaluate The Dielectric Constant Of The Oil At High Temperature, This is not recommended for shared computers. At the central stage of the characterization of hydrocarbons, the establishment of the interconnection of mechanical to thermal properties is required. Bubble point pressure of the feed to the gathering line as a function of solution gas at nominal line temperature of 15.6 and 41.7 (60 and 107), Figure 4. If you accept cookies from external media, accessing these contents no longer requires giving manual consent. Norman, OK. 73072. The value of Z can be used to analyse the transmission and reflection of pressure waves across the interface between the layers of adjoining fluids, such as the crude oil-water interface or crude oil-gas interface. This elevation profile is considered to be approximately equivalent to “rolling” terrain. Marketing cookies are used by third parties or publishers to show you personalized advertising. Similarly it shows oil is under saturated up to GOR of 39.4 Sm3/STm3 (221.3 scf/STB) for the higher average line temperature. What is the volume at 15°C? Gas injection uses gases such as natural gas, nitrogen, or carbon dioxide (CO2). Low Flow in Pipes- posted in Ankur's blog. It requires that I find the density of sweet crude oil at -40 degrees Celsius. (SPE) paper 15646, © 2006 Nanjing Institute of Geophysical Prospecting, Comparing different approaches of time-lapse seismic inversion, Direct inversion for reservoir parameters from prestack seismic data, Precision analysis of forced-oscillation device: numerical modelling and experimental investigations, Recognition of the pre-salt regional structure of Kwanza basin, offshore in West Africa, derived from the satellite gravity data and seismic profiles, Patched Green's function method applied to acoustic wave propagation in disordered media: an interdisciplinary approach, About Journal of Geophysics and Engineering, About Sinopec Geophysical Research Institute, 3 Temperature dependent density and the velocity of compressional waves in crude oil samples, 6 Comparison to crude oil reservoir conditions, https://doi.org/10.1088/1742-2132/3/4/002, http://dx.doi.org/10.1016/j.petrol.2003.12.012, http://dx.doi.org/10.1016/S0920-4105(02)00149-3, http://dx.doi.org/10.1103/PhysRevB.31.4751, http://dx.doi.org/10.1016/j.petrol.2004.07.003, http://dx.doi.org/10.1103/PhysRevLett.49.1271, http://dx.doi.org/10.1016/j.petrol.2004.05.005, http://dx.doi.org/10.1016/j.petrol.2003.12.001, http://dx.doi.org/10.1016/j.petrol.2003.12.011, Receive exclusive offers and updates from Oxford Academic, Copyright © 2020 Sinopec Geophysical Research Institute. Reliable data of the thermo-physical properties conforming to in situ conditions as a function of temperature and pressure are useful for the associated analysis. For the second case the average line temperature is about 41.7°C (107°F). This technique is used in heavy-oil reservoirs and tar sands. A total of 30 heavy oil samples of different API gravities ranging from 11.7 to 18.8 were tested. Various mathematical models that are used primarily to analyse the data related to exploration and recovery of hydrocarbon fluids heavily depend on basic physical parameters like density, velocity of compressional waves, acoustic impedance, elastic modulii and equations of state. This figure also indicates that the impact of temperature on gas velocity is more than on the liquid phase velocity. In the Density vs temperature figure(°C), you se that the brown line represent this lubricating oil. required density of mineral oil at a temperature of −12 °C (the amendment should be added, as the temperature of the load in the tank below +20 °C), equal to 0.7520 + 0.0266 = 0.7786 or 0.7785 is rounded. •Bakken Crude Oil has a Vapor Density of: •2.5 –5.0 •As such vapors can accumulate in low or depressed areas •These vapors can be both flammable and toxic. The measuring cell is a specially designed double walled jacket which enables the temperature of the experimental liquid to be maintained constant by circulating water at the desired temperature. Petr. Data obtained, such as density decrease, changes in density, and the gas gravity is used for the decision about which of the EOR techniques will leave the maximum margin and for calculating the equation of state for the crude oil for modeling the oilfield with a computer simulation. We have used the American Petroleum Institute oil gravity (API) numbers to classify our oil samples as: The experimentally determined density (figure, The measured data of the temperature dependence of the ultrasound velocity is presented in figure, In most of the mathematical modelling of crude oil, density, compressibility, acoustic impedance and the coefficient of volume expansion are the explicit fluid parameters which are often required. Of the proven reserve of crude oil, only 40% or less is being procured with the presently available technological know-how. Some other techniques, such as statistical error analysis (Al-Marhoun 2004) and surface properties (Denoyel et al2004) are made to establish a connection of the physical properties of crude oil to its thermodynamic properties. The ultrasound velocity (V) and density (ρ) of crude oil samples are determined as a function of temperature (t). Is there anywhere I can find such information that would be easy for me to understand? Low Flow in Pipes- posted in Ankur's blog, Just a slight addition, your referred temp of 60 Celsius should not be suitable for most common and lighter crude oils as around 5%~10% may be affected, QUOTE (Qalander (Chem) @ Mar 13 2009, 11:42 AM), QUOTE (ankur2061 @ Mar 13 2009, 09:45 PM), QUOTE (Qalander (Chem) @ Mar 13 2009, 01:51 PM).
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