The Coupling Model of Temperature and Pressure for Gas Well with High H2S Content

For the gas well with high H2S content, changes of pressure and temperature of the formation and the wellhead, play an important role in the control of carrying sulfur capacity and sulfur deposition in the gas.For the gas wells with high H2S content, the calculating method of temperature and pressure distribution has low accuracy and feasibility,for the calculating method of viscosity and Z-factors in the high sulfur gas are different.Based on the theories of mass conservation, momentum conservation, energy conservation, and the transfer of heat in the radial directions of wellbore,we established the coupling model of temperature and pressure for gas well with high H2S Content.For X-1 well,we predicted the wellbore temperature and pressure by using the coupling model.