SPECIAL FEATURES OF THE DECOMPOSITION OF A HYDRATE IN A MOIST POROUS STRATUM OF FINITE LENGTH UNDER A DEPRESSION ACTION

The problem on the extraction of a gas from a porous stratum of fi nite length saturated with this gas, water, and a gas hydrate under a depression action was solved in the radial-symmetric approximation with regard for the possibility of formation and decomposition of a hydrate in the stratum, the mobility of the liquid, and the Joule–Thomson effect. It was established that, on the opening of the stratum, a hydrate may or may not be formed in the bottomhole zone of the well depending on the initial gas saturation of the stratum and that, in the case where the gas saturation of the stratum is low, in it there take place aperiodic damped oscillations of the gas fl ow rate
   
Author:  O. R. Nurislamov and S. A. Lepikhin
Keywords:  porous medium, gas hydrate, decomposition of a hydrate, depression action, Joule–Thomson effect
Page:  1183