37 Downhole operations, in particular well drilling; rental of downhole equipment, in particular for any kind of tubing such as drill strings, coiled tubings, thru tubings; rental of drilling equipment, machinery, components or tools thereof, in particular for well drilling; rental of oil well drilling tools; rental of tools mountable in a tubing, in particular a drill string or coiled tubing, for well drilling, well cleaning, thru tubing, completion and workover operations, and rental of operating components for operating such tools, in particular balls and darts; rental of completion and workover tools, in particular for wells, further in particular for oil and gas wells; rental of tools, in particular oil and gas well tools, and components thereof, used during drilling in particular for enabling the pumping of lost circulation material (LCM) to increase well fluid circulation rates and for wellbore cleanout and for one or more of acidizing, stimulation, coring, workover and for various other operations used to resolve various types of well conditions; rental of circulating tools for well drilling equipment, in particular for tubings, a drill string, a coiled tubing and a thru tubing; rental of downhole valves for a drill string, a coiled tubing or a thru tubing for well drilling purposes; rental of downhole valves and circulating tools operable in a bypass mode in particular for displacing large particle material and large volumes of fluid into a wellbore, in particular wherein the circulating tools are configured for a drillstring, a coiled tubing and a through tubing; rental of activation and deactivation mechanisms for a tool for well drilling purposes in a drillstring, a coiled tubing or a thru tubing; rental of catching devices for well drilling purposes for operating components, namely, activation components and deactivation components or parts thereof, of downhole tools, in particular of downhole valves, circulating tools and activation and deactivation
Trademark: 90603101
