�?�?t ε l ρ l v l + �?�?ε l ρ l v l v l = ε l �?�?τ l + ε l ρ l g �?ε l �?p �?β v l �?v s The original contributions introduced Within this analyze are included in the short article. Further inquiries may be directed on the corresponding author. Keywords and phrases: In a natural way fractured reservoir; dril