Prediction Method of Fracturing Pressure for Clean Water Sand-Carrying Fracturing in Horizontal Wells of Volcanic Reservoirs

Yue Xi

doi:10.54097/1yfwpx41

Authors

Yue Xi

DOI:

https://doi.org/10.54097/1yfwpx41

Keywords:

Clean Water Fracturing, Solid-liquid Phase Frictional Loss Ratio, Fracturing Pressure Prediction

Abstract

To further reduce the operational risks of clean water sand-carrying fracturing in horizontal wells within volcanic reservoirs and better guide field operations, research on the prediction method for clean water fracturing pressure was conducted. Firstly, considering the energy dissipation caused by solid-liquid interaction, a calculation method for the frictional pressure loss of the clean water-sand two-phase flow in horizontal wellbores was established to calculate the frictional pressure loss under different working conditions. Secondly, parameters such as perforation friction and near-wellbore tortuosity friction were calculated. Consequently, a prediction method for the fracturing pressure of clean water sand-carrying fracturing in horizontal wells of volcanic reservoirs was developed. Field tests show that the calculated fracturing pressure using this method correlates well with the actual field pressure, with a calculation error ≤13.7%. The calculation accuracy is significantly improved, indicating that this method can effectively guide the design and field implementation of clean water sand-carrying fracturing.

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