... in which 0/ is the slope of a straight line in a plot of / vs. square root of time, and it is: $ $ 0/ = 123.2 % 0! (2) 6 2. Solution for Constant Rate / = 08 t in which 08 is the slope of a straight line in a plot of / vs. square root of time and it is: $ $ 08 = 9:.9 % 0! (3) 6 In practice, however, we...

... versus the square root of produced time and the derivative, the change in cumulative production with respect to the square root of produced time, is a constant. At the onset of partial boundary flow the linear derivative decreases and can be fitted with an exponential straight line. The time...

... Abstract This work was motivated by field observations of two infinite-acting flow regimes in multi-fractured horizontal wells that are seen as two straight lines on a cross plot of cumulative production versus the square root of time. The occurrence of one linear flow regime followed...

... estimation numerical model square root URTeC: 2449270 Managing the Impact of Characterization and Modeling Uncertainties on EUR Assessment in Unconventional Plays Mariano F. Raverta*, Total S.A., France, Olusegun Osadiya, Frederic Brigaud, Arnaud Rostagno, Total E&P USA, Houston TX, United States...

... (Arps), square-root of time, power-law exponential, other hybrid methods and type curves). However, in many cases such decline curves do not adequately describe long-term production behavior. Early in the well life it is especially difficult to determine which relation will best fit the long term...