Oilfield equipment, namely, float shoes and float collars for controlling fluid flow along the oil well casing; casing guiding equipment, namely, guiding shoes to attach at the bottom of the oil well casing; casing centralizers to secure around the casing to keep the oil well casing from contacting the well bore; stage tools, namely, a sliding sleeve oil well casing section used in stage cementing; circulating equipment to circulate fluids through the casing to condition the oil well; plug placement aids to aid in the placement of cement plugs in oil well operations; cementing wiper plugs for use inside the oil well casing prior to cementing to reduce contamination in the casing; all the foregoing for use with oil industry drilling or rig machines