Many shale formations are treated at sufficiently high pumping rates that the surface treating pressures are near the maximum allowable pressure limits for surface or downhole equipment. Treating a well near its maximum allowable pressure limits can intensify the overpressure risk from a water-hammer pressure wave. The maximum pressure measured at the wellhead, from a water-hammer pressure wave, can be reached seconds after the high-pressure pumps are stopped following a rapid pressure increase during a screenout or other sudden flow stoppage. This paper provides a method to calculate the water-hammer pressure. Methods to help minimize the pressure surge are presented. Use of these methods can minimize the risk to personnel, the environment, and equipment caused by the potential water-hammer pressure surge often overlooked in well treatment designs.
Relevance of Static Geomodels in Shale Plays: South Texas Eagle Ford Shale
McGeer, A.L., Cadenaer, A., and J. Womacker. "Relevance of Static Geomodels in Shale Plays: South Texas Eagle Ford Shale." Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, Denver, Colorado, USA, August 2014. doi: https://doi.org/10.15530/URTEC-2014-1921282
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