(3.62)

we have

$\begin{array}{l}q={J}^{*}(\overline{p}-{p}_{b})=\frac{{J}^{*}{p}_{b}}{1.8}\hfill \\ \times \left[1-0.2\left(\frac{{p}_{wf}}{{p}_{b}}\right)-0.8{\left({\displaystyle \frac{{p}_{wf}}{{p}_{b}}}\right)}^{2}\right].\hfill \end{array}$ (3.63)

(3.63)

**Example Problem 3.4** Construct IPR of a vertical well in an undersaturated oil reservoir using the generalized Vogel equation. The following data are given:

Porosity: | ϕ=0.19 |

Effective horizontal permeability: | k=8.2 md |

Pay zone thickness: | h=53 ft |

Reservoir pressure: | $\overline{p}=5,651\mathrm{psai}$ |

Bubble-point pressure: | p_{b}=3000 psia |

Fluid formation volume factor: | B_{o}=1.1 |

Fluid viscosity: | μ_{o}=1.7 cp |

Total compressibility: ... |

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