Abstract: For the broken-line path following problem of unmanned aerial vehicles (UAVs), to enhance the ability to reject wind disturbance and reduce position error overshoot when a UAV turns in the switching position of a broken-line ...

Abstract: Hydraulic fractures are difficult to initiate simultaneously during multi-cluster fracturing owing to the strong heterogeneity of shale reservoir and the stress interference effect between adjacent hydraulic fractures. ...

Abstract: The main factor contributing to the decline in effective fracture width and conductivity is proppant embedding into the fracture surface. In the deep shale's high-temperature, high-pressure, and high-stress environment, ...