Operational Circumstances: Drilling was performed under overbalanced drilling (OBD) situations, where the hydrostatic force with the drilling mud column deliberately exceeds the formation pore tension. Height of fracture: width of fracture entrance = six: one, the coincidence degree in the indoor and field drilling fluid lost control performance is https://medium.com/@vertechs/the-unseen-engine-how-drilling-fluid-powers-the-future-of-energy-and-industry-one-innovation-at-a-01ac91c78f16