![]() It was later modified by Boughrara and Reynolds (2007) to consider a system with variable temperature in vertical wells. That solution was initially introduced for the calculation of the injection pressure in an isothermic system. To construct the solution an analytical approach presented by Boughrara and Peres (2007) was used. The analysis of injection tests under nonisothermic conditions is important for the accurate estimation of the reservoir permeability and the well's skin factor since previously an isothermical system was assumed without taking into account a moving temperature front which expands with time plus the consequent changes in both viscosity and mobility between the cold and the hot zone of the reservoir which leads to unreliable estimation of the reservoir and well parameters. Pressure and pressure derivative analysis for injection tests with variable temperature without type-curve matchingĮscobar, Freddy Humberto Martinez, Javier Andres Montealegre Matilde The matching of the definitions adopted by different organizations to the penetration curves of various types of sample is discussed. International Nuclear Information System (INIS)Ī formal definition of 'respirable fraction' (the probability that a particle of a given size will deposit in the alveolar regions of the lung if inhaled) is useful only if there is a method of sorting out airborne contamination approximately in accordance with the definition. Matching sampler penetration curves to definitions of respirable fraction ![]()
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