Abstract: The present disclosure provides methods and compositions for scrubbing debris from a bored well and includes injecting a suspension of acrylonitrile fibers, into the bored well to its open end. The suspension of acrylonitrile fibers scrubs the bored well of loose debris without substantially impeding the drilling capability of the rig by raising the effective liquid viscosity in the bored well. Also provided are pre-measured form factors of the acrylonitrile fibers for convenient and precise preparation of the acrylonitrile fiber suspension at the bored well site.

Abstract: A method for making a fabric material includes the steps of weaving a plurality of strands of a warp yarn in a warp direction with a plurality of strands of a first filling yarn impregnated with silver ions in a filling direction and a plurality of strands of a second filling yarn impregnated with copper ions in the filling direction. Each of the plurality of stands of the first filling yarn and each of said plurality of strands of the second filling yarn are alternately woven with the plurality of strands of the warp yarn in the filling direction. The method further includes scouring the fabric material to remove external matter, conditioning the fabric material in order to soften it, drying the fabric material, and calendaring the fabric material to smoothen it.

Abstract: A fabric material including a plurality of strands of a warp yarn positioned in a warp direction, a plurality of strands of a first filling yarn positioned in a filling direction, each being impregnated by silver ions, and a plurality of strands of a second filling yarn positioned in the filling direction, each being impregnated by copper ions. The strands of said warp yarn are woven with those of the first and second filling yarns to form a face side and a back side, and the strands of the first and second filling yarns are woven alternately relative to one another with the strands of said warp yarn in said filling direction. The fabric material may be a satin, plain or twill pattern, and can be used as a bed sheet having a low coefficient of friction, wickability, absorbency, and “cool to the touch” properties.

Abstract: A wind turbine blade is provided with a core that has a plurality of sections, and a spar that has a plurality of sections and which is centrally positioned in the core. The exterior of the core is covered with a resin impregnated fabric cover that is cured. The spar and core sections of the blade may be sized to facilitate the assembly of the blade at a field construction site.