Abstract: A drier with a curvalinear chamber having a heat transfer surface at one end and baffles at the other end. A fan is provided to circulate air within the chamber. In the process for drying, the product to be dried is positioned within the chamber and air circulated across the heat transfer surface, toward the baffle, past the product, and back to the heat transfer surface.

Abstract: A method of perforating a subterranean formation penetrated by a bore hole and having a multiplicity of strata including a hydrocarbon bearing target strata, with the strata oriented with the dip of the strata running in a first direction. The method generally includes positioning a perforation gun in the well bore adjacent to the hydrocarbon bearing target strata. Next includes orienting the perforating guns so that it will perforate the target strata in a direction perpendicular to the first direction. The method finally includes perforating the target strata. A method of hydraulically fracturing the above described subterranean formation would further include pumping a fluid under pressure into the so formed perforations.