�?�?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 If the level of fluid while in the wellbore drops as a result of lost circulation (or any other motive), hydrostatic strain is lessened, which often can enable a fuel or fluid and that is underneath a higher tension when co