Evaluation of Time-Rate Performance of Shale Wells using the Transient Hyperbolic Relation Conference Paper uri icon

abstract

  • Abstract In this work we present the “Transient Hyperbolic” relation for the analysis and interpretation of time-rate performance data from wells in shale gas/liquids-rich shale plays. This model assumes a transient “b(t)” function which has constant early-time and constant late-time values, with an exponentially decaying transition function. This “b(t)” function is derived from the Gompertz logistic function. Our goal in developing this formulation is to represent the early-time (or clean-up) portion of the production profile (often a hyperbolic function), the transition to the terminal hyperbolic behavior, and finally, the terminal hyperbolic behavior — where the terminal hyperbolic is usually representative of the “non-interfering” vertical fractures in a multi-fractured horizontal well (MFHW). We could further modify this relation to have a terminal exponential decline (thought to represent the performance of the stimulated-reservoir-volume (or SRV)), but that is not a primary purpose of this work — our primary purpose is to demonstrate the “Transient Hyperbolic” nature of the flow behavior from a multi-fractured horizontal well in a shale gas/liquids-rich shale play. The technical contributions of this work are: Development of the “Transient Hyperbolic” time-rate relation — this relation includes an early AND a late-time hyperbolic behavior, as well as a logistic transition function.Application of the “Transient Hyperbolic” time-rate relation to modeling completion heterogeneity in a MFHW by a superposition of divisions that have differing durations of linear flow.Application of the “Transient Hyperbolic” time-rate relation to several field cases — specifically: tight gas, shale gas, and “liquids-rich” shale cases.

name of conference

  • SPE Unconventional Resources Conference Canada

published proceedings

  • All Days

author list (cited authors)

  • Fulford, D. S., & Blasingame, T. A

complete list of authors

  • Fulford, DS||Blasingame, TA

publication date

  • January 1, 2013 11:11 AM

publisher

  • SPE  Publisher