Prediction Model of Rate Decline for Acid-Fracturing Vertical Wells in Pore-Cavity-Fracture Carbonate Reservoirs

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left">Basic parameters</td><td class="align_center">Value</td><td class="align_center">Basic parameters</td><td class="align_center">Value</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">Reservoir thickness/m</td><td class="align_center">10.4</td><td class="align_center">Compressibility factor/MPa<sup>-1</sup></td><td class="align_center">3.3586 × 10<sup>-3</sup></td></tr><tr><td class="align_left">Porosity/%</td><td class="align_center">12.35</td><td class="align_center">Density/g/cm<sup>3</sup></td><td class="align_center">0.6127</td></tr><tr><td class="align_left">Viscosity/mPa·s</td><td class="align_center">0.16</td><td class="align_center">Initial reservoir pressure/MPa</td><td class="align_center">32.731</td></tr><tr><td class="align_left">Volume factor/dimensionless</td><td class="align_center">1.952</td><td class="align_center">Irreducible water saturation/%</td><td class="align_center">33.09</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Basic parameters of CT-2 in North Truva Oilfield.</div>

Geofluids

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Table 3

Table 3: Prediction Model of Rate Decline for Acid-Fracturing Vertical Wells in Pore-Cavity-Fracture Carbonate Reservoirs 