Abstract: A three-dimensional, transversely isotropic yield condition is combined with a plane of weakness to describe the initial yield limit for Green River Shale. This theory is compared to experimental ...

Abstract: Single-cutter experiments using STRATAPAX drill blanks have been conducted to evaluate the effects of shale properties, drilling fluid pressures, and cutter configurations on the drillability of ...

Abstract: The rock/bit-tooth interaction problem has been approximated previously by plasticity analysis of a wedge indenting a half-space. In the previous work the rock, under high confining pressure, was ...

Abstract: Wall forces on helically buckled pipe can cause large frictional forces that may prevent movement of the pipe in steeply inclined holes. A method of analyzing the dependency of the wall contact ...

Abstract: Conformal mapping may be used to approximate the two-dimensional pore pressure distribution around a cylinder with a single longitudinal slot. A nonsymmetric flow field can significantly affect ...

Abstract: An uncoupled poroelasticity analysis of steady flow into a fixed cylindrical cavity in a porous medium gives an approximate solution for the stress field around a production casing. As compared ...