�?�?t ρ l k + �?�?x i ρ l k v l = �?�?x j μ + μ t σ k �?k �?x j + G k �?ρ l ε �?Y M Neglecting formation habits: Overlooking tension variants in tectonically active places or overlooking weak formations when selecting mud https://jaredjeczs.birderswiki.com/2440654/the_ultimate_guide_to_loss_circulation_in_drilling