Oilfield downhole equipment for drilling and completion activities, namely, float equipment with a check valve to prevent the back flow of cement when oil and gas well casing is being cemented into place in a well; oilfield downhole equipment for drilling and completion activities, namely, toe sleeves, with ports that open as a result of an increase in fluid pressure allowing fracturing fluid to flow into a surrounding oil and gas formation, oilfield downhole equipment for drilling and comple...

Non-metal hydrophobic sheets in the nature of masking paper comprised of highly densified fiber material for use in masking a bore when cleaning or painting an object