Keyword: «half-division method»

An algorithm is proposed for determining the dynamics of changes in the mass flow rate of natural gas in a well by measuring the pressure at the wellhead, based on the method of half division (bisection, dichotomy), which has unconditional convergence. In the course of solving the problem during the gas hydrates formation and deposition, the dynamics of changes in gas pressure and temperature, as well as the flow section along the length of the well, are also calculated. Comparison of the calculation results showed that at a constant bottom-hole pressure, the implementation of this algorithm, in contrast to the previously proposed algorithm for the inverse problem, leads to an increase in the duration of the process of complete blockage of the well with hydrates and, accordingly, to an increase of the produced gas total amount.