An Innovative Method To Determine Low- and High-Pressure Steam Properties

SPE Members Oil recovery by the use of steam injection techniques involves the evaluation of steam properties at varying temperature, pressure properties at varying temperature, pressure and volume. This evaluation is necessary in order to determine heat losses and the varying nature of steam quality at the surface lines, wellbore and within the reservoir during the steam Injection process. process. Several authors have developed correlations for pressures below 500 psi and yet others in most recent publication have developed in some instances, several sets of correlations for the steam properties as a function of pressures between 500 psi to 2500 psi. pressures between 500 psi to 2500 psi. This work presents an innovative mathematical model that predicts the properties of the steam as a function of pressure from as low as 1 psi to as high as 3200 psi as obtainable in revised steam tables (laboratory data). The computer model presented here is about 99.98% accurate and was developed based on numerical analysis techniques, in combination with the use of an advanced statistical package available at USL Computer System. package available at USL Computer System. The powers to which the pressure was raised was obtained and suitable designed for this task. The model uses an equation developed especially for this computer program written in Fortran 77. It Is now possible to determine the value of steam properties as a function of pressure for any practical range of pressures. The values obtained from the correlation closely match the experimental values given in professional steam tables. professional steam tables. In general the results generated by this new correlation are far better than any other correlations that have been published at present. present. P. 602