Downhole machine tools for controlling sand inflow, namely, down-hole sand control system for use in oil or gas wells in the nature of activation chamber machines mounted on standard base pipes; Downhole machine tools for well formation stress control, namely, high pressure high temperature (HPHT) machines featuring pre-drilled base pipe designs for water injection, all for wellbore support; Downhole machine tools for controlling sand inflow for use in zonal isolation and featuring sand control screens; Downhole machine tools for controlling sand inflow, namely, sand sorting machines; machines, machine tools and power tools, namely, apparatus, equipment and machines used for the drilling and completion of oil and gas wells, all in the nature of machine tools for controlling sand inflow and machine tools for well formation stress control; downhole machines, namely, sand control screens; machine tools, namely, downhole tools and apparatus in the nature of sand control screens, machine tools for controlling sand inflow and machine tools for well formation stress control; Deep water oil and gas well maintenance services, namely, downhole well maintenance featuring installation of replacement parts, and featuring maintenance for wellbore support, sand control, and flow control suited to deep water regions, mature fields and high pressure high temperature (HPHT) wells; gas well drilling and extraction services; well maintenance and remedial services, namely, maintenance and cleaning of gas wells; rental, repair and installation of equipment for use in the construction of gas wells; rental, repair and installation of equipment for use in the operation, repair, maintenance and inspection of gas wells, namely, rental, repair and installation of cleaning equipment used in the operation, repair, maintenance and inspection of gas wells; "HYDRAULIC SCREEN"; Engineering research and design services
