Abstract: Methods for simulating the movement of fluid through a formation volume comprises defining a lab-scale model representing rock fabric and associated permeability along a single well location within a formation volume and converting the lab-scale model to a field-scale model representing rock fabric and associated permeability at the single well location. The field-scale model representing rock fabric and associated permeability is correlated with field-scale log data and interpolated between multiple well locations so as to create a field-scale model representing rock fabric and associated permeability across the formation volume so that the movement of fluid through the formation volume can be simulated.

Abstract: A tube header for a heat exchanger may include: a header plate having two major dimensions defining a header plane, and a plurality of tie bars, each tie bar arranged between a pair of adjacent oblong passages. In particular, the header plate has a row of oblong passages extending through the header plate, and the header plate includes a core cover slot of which opening length is equal to or greater than three quarters of an opening length of one of the oblong passages to receive a tube.

Abstract: Methods for simulating the movement of fluid through a formation volume comprises defining a lab-scale model representing rock fabric and associated permeability along a single well location within a formation volume and converting the lab-scale model to a field-scale model representing rock fabric and associated permeability at a single well location. The field-scale model representing rock fabric and associated permeability is correlated with field-scale log data and interpolated between multiple well locations so as to create a field-scale model representing rock fabric and associated permeability across the formation volume so that the movement of fluid through the formation volume can be simulated.

Abstract: A tube header for a heat exchanger may include: a header plate having two major dimensions defining a header plane, and a plurality of tie bars, each tie bar arranged between a pair of adjacent oblong passages. In particular, the header plate has a row of oblong passages extending through the header plate, and the header plate includes a core cover slot of which opening length is equal to or greater than three quarters of an opening length of one of the oblong passages to receive a tube.

Abstract: A heat exchanger assembly that includes a tube having an internal surface and an external surface. An aluminum-based component is disposed adjacent to the tube, the aluminum-based component has an aluminum-based material that has a magnesium content that is above 0.3%, wherein the aluminum-based component is joined to the tube using a brazing flux applied during a controlled atmosphere brazing process.