Occupational Titles Beginning with Letter W
Sets up and operates portable drilling rig and related equipment to drill water wells. Installs and repairs submerged turbine pumps in water wells using a truck-mounted hoisting rig or equipment.
Extends stabilizing jackscrews to support and level drill rig. Moves levers to control power-driven winch that raises and extends telescoping derrick. Bolts trusses to derrick and machine frame. Assembles drilling tools using hand or power tools. Moves levers and pedals to raise and lower drill tools and well casing into well bore. Moves levers and pedals and turns handwheels to control action of machine that drills or punches well bore and lowers casing into well. Pours water into well or pumps water or slush into well to cool drill bit and remove drillings. Listens to sounds of drilling machine and feels cable or brake to determine changes in rock formation being penetrated or variations in drilling process. Moves levers to adjust stroke and impact of cable tool drilling machine or changes drill bits of rotary drilling machine according to nature of strata encountered. Replaces drill bit with tool to collect samples of earth or rock being penetrated. Inspects core samples to determine nature of strata encountered or takes samples to laboratory for analysis. Records drilling progress and geological data. Splices worn or broken cable. Fabricates well casings and builds up worn drill bits using oxyacetylene cutting and welding equipment. Retrieves lost equipment from bore holes using specialized retrieval tools and equipment. May repair drill bits using forging furnace, hammer and anvil. Drives rig into position adjacent to well. Starts hoisting engine and moves levers and pedals to raise and extend telescoping hoisting mast. Bolts guy wires and struts to mast for support. Threads and tightens pump parts such as pump bowl, shaft, bearings, tubing and couplings using wrenches and chain tongs to assemble pump section. Raises pump section to vertical position and installs section in well casing using rig loadline and winch. Screws coupling or bolts flange to connect pump base to pipe column. Drives wedges under pump base to align base with pump shaft centering pump shaft in opening until tube nut or packing container fits without interference or using dial indicator to verify alignment. Hoists electric motor drive or engine drive gear box into position over pump base and inspects clearance between shaft and hollow spindle of driver to verify alignment of pump shaft. Attaches pressure gauge and orifice meter to pump outlet and pumps air into well to measure static and dynamic water levels and capacity of well. Dismantles pumps to clean, repair and replace worn or damaged parts. May repair various types of pumps, such as centrifugal, plunger and turbine pumps.