How will STABView help me determine drilling parameters that will result in a more stable well?
STABView can evaluate the sensitivity of borehole instability risks to a large number of input parameters. Of the parameters that can be controlled in the drilling operation, the most notable are the mud equivalent circulating density or bottomhole pressure, the effectiveness of filter cake or wall coating additives for preventing mud pressure penetration into the formation, and the trajectory of the wellbore relative to the principal in-situ stresses and weak bedding or fracture planes. Other controllable factors which can be assessed include capillary threshold pressure effects for oil-based or pseudo oil-based drilling muds, the effects of high salinity muds for shale inhibition, and the consequences of sudden decreases in bottomhole pressures due to swab or surge effects. Casing setting depths may also be optimized with STABView.
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