Need to print a well log? Look no further than 20 lb. Xerographic Prefold Paper with a 8.5″ fold from Plotter Paper Guys. It is the perfect solution for seismic well log printing. Designed primarily for black and white printing, our 18″ X 500′ rolls of fan fold paper is the premier line of seismic-well log media in the country. Plotter Paper Guys product number FX20B18F812RW includes 2 Items Per Package.