Dictionary Of Occupational Titles
PETROLEUM AND NATURAL GAS PRODUCTION INDUSTRY
G
gang supervisor, pipe lines
roustabout, head Supervises and coordinates activities of workers engaged in operating digging and pipelaying machines and in installation of pipe, pumps, valves, and meters to construct and maintain pipelines. Performs duties described under SUPERVISOR (any industry) Master Title. May be designated according to work location as Oil-Field Pipeline Supervisor (petrol. & gas).
gang worker
Assembles and repairs oil field machinery and equipment, using handtools and power tools: Digs holes, sets forms, and mixes and pours concrete into forms, to make foundations for wood or steel derricks, using posthole digger, handtools, and wheelbarrow. Bolts or nails together wood or steel framework to erect derrick. Dismantles and assembles boilers and steam engine parts, using handtools and power tools. Bolts together pump and engine parts. Connects tanks and flow lines, using wrenches. Unscrews or tightens pipe, casing, tubing, and pump rods, using hand and power wrenches and tongs.
gas-engine engineer
gas-engine engineer Operates gasoline, natural gas, or diesel engines to supply power for rotary oil well drilling machinery: Starts engines and observes drilling operations to provide power under operating conditions. Assembles and dismantles pumps and other drilling equipment, using handtools. Loosens and tightens threaded sections of drill pipe and well casing. Lubricates and repairs equipment.
GAUGER
pipe-line gauger; tank-farm gauger; terminal gauger Gauges and tests amount of oil in storage tanks, and regulates flow of oil and, other petroleum products into pipelines at wells, tank farms, refineries, and marine and rail terminals, following prescribed standards and regulations: Gauges quantity of oil in storage tanks before and after delivery, using calibrated steel tape and conversion tables. Lowers thermometer into tanks to obtain temperature reading. Turns bleeder valves, or lowers sample container into tank to obtain oil sample. Tests oil to determine amount of bottom sediment, water, and foreign materials, using centrifugal tester. Calculates test results, using standard formulas. Records readings and test results. Starts pumps, and opens valves on pipelines and tanks to regulate and direct flow of oil from and into tanks, according to delivery schedules. Reads automatic gauges at specified time intervals to determine flow rate of oil into or out of tanks and amount of oil in tanks. Inspects pipelines, valves, and flanges to detect malfunctions, such as loose connections and leaks. Tightens connections with wrenches, greases and oils valves, using grease gun and oilcan. Reports leaks or defective valves to maintenance personnel. Clamps seal around valves to secure tanks. May gauge tanks containing petroleum and natural gas byproducts, such as condensate or natural gasoline. May operate pumps, teletype, and mobile radio. May clean pumps, machinery, and equipment. May issue delivery or receiving tickets. May record meter and pressure readings at gas wells. May regulate flow of products into pipelines, using automated pumping equipment. When gauging oil received from and delivered to terminals, tank farms, and refineries, may be designated Gauger, Delivery (pipe lines).
GAUGER, CHIEF
gauger; district gauger Supervises and coordinates activities of GAUGERS (petrol. & gas; petrol. refin.; pipe lines) controlling flow of oil into pipelines and gauging amount of oil stored in tanks or railroad cars. May oversee loading and shipment of oil and preparation of loading reports and bills of lading. Performs duties as described under SUPERVISOR (any industry) Master Title.
general manager, land department
land-and-leases supervisor; land department head; lease agent; leases-and-land supervisor; manager, land department; superintendent, land department Directs land and leasing department of petroleum company to secure leases, options, rights-of-way, and special agreements covering land and mineral rights for drilling wells and producing gas and oil: Studies leases bought, prices paid, and other negotiations of competing companies in specified areas and determines expenditure necessary to obtain leases and other contracts in those areas. Determines and specifies date of termination of lease rentals. Negotiates with brokers or other individuals to sell interests in leases owned. Executes general policies established by company officials. May make final decisions on and sign agreements and contracts for purchase, sale and acquisition of land leases, mineral and royalty rights. May be designated according to area of operations as Manager, Divisional Leasing (petrol. & gas).
general-office dispatcher
district superintendent, gas and gasoline; general-office dispatcher; superintendent, pressure Coordinates activities of GAS DISPATCHER (pipe lines; utilities) to deliver natural gas from oil fields through pipelines to delivery points: Reviews customer purchase requests to gather information for scheduling gas movements from various fields. Prepares schedules and notifies GAS DISPATCHER (pipe lines; utilities) by radio, teletype, or telephone to release specific amount of gas from well. Reviews periodic reports of gas pressures and volume of gas delivered to ensure safe operation of pipelines. Keeps records of deliveries of gas, pressures maintained, and shutdowns of lines. May coordinate transfer of liquid petroleum products by pipeline.
GEOLOGICAL AIDE
Examines and compiles geological information to provide technical data to GEOLOGIST, PETROLEUM (petrol. & gas) 024.061-022, using surface and subsurface maps, oil and gas well activity reports, and sand and core analysis studies: Studies geological reports to extract well data and posts data to maps and logs. Draws subsurface formation contours on charts to lay out and prepare geological cross section charts. Compiles information regarding well tests, completions, and formation tops to prepare oil or gas well records. Records net sand and sand percentage counts and calculates isopachous values to compile sand analysis data. Studies directional logs and surveys to calculate and plot formation tops. Reads well activity reports and records key well locations in drilling activity book. Assembles and distributes prepared charts, maps, and reports to geologist requesting material. Maintains file record systems and geological library. Attends SCOUT (petrol. & gas) 010.267-010 meeting to compile information on well activity. Contacts competitors to acquire oil and gas samples from wells. Operates computer terminal for input and retrieval of geological data.
GEOLOGIST, PETROLEUM
Explores and charts stratigraphic arrangement and structure of earth to locate gas and oil deposits: Studies well logs, analyzes cores and cuttings from well drillings, and interprets data obtained by electrical or radioactive well logging and other subsurface surveys to identify earth strata. Examines aerial photographs, evaluates results of geophysical prospecting, and prepares surface and subsurface maps and diagrams depicting stratigraphic arrangement and composition of earth and probable deposits of gas and oil. Recommends acquisition, retention, or release of property leases or contracts. Estimates oil reserves in proven or prospective fields, and consults with PETROLEUM ENGINEERS (petrol. & gas) concerning drilling and production methods. May direct drilling of shallow exploratory wells.
geophysical operator
Studies structure of subsurface rock formations to locate petroleum deposits: Conducts research, using geophysical instruments such as seismograph, gravimeter, torsion balance, and magnetometer, pendulum devices, and electrical-resistivity apparatus to measure characteristics of earth. Computes variations in physical forces existing at different locations and interprets data to reveal subsurface structures likely to contain petroleum deposits. Prepares charts, profiles or subsurface contour maps, and determines desirable locations for drilling operations. Directs field crews drilling boreholes and collecting samples of rock and soil for chemical analysis of hydrocarbon content. May specialize in particular instrumentation and be designated Electrical Prospector (petrol. & gas); Gravity Prospector (petrol. & gas); Magnetic Prospector (petrol. & gas); Seismic Prospector (petrol. & gas).
Geophysical CHIEF operator;
section-plotter operator Plans and directs activities of field party engaged in collecting seismic data used in prospecting for oil or gas: Designates location of shot holes and placement of seismometers and connecting cables over blast area according to plot drawn by SURVEYOR, GEOPHYSICAL PROSPECTING (petrol. & gas). Plans and directs activities of workers engaged in laying out seismographic measuring apparatus over test area. Surveys area to verify that equipment is in position specified and tests electrical circuits for continuity. Directs SHOOTER, SEISMOGRAPH (petrol. & gas) to detonate charges placed in shot holes, using short wave radio. Observes reaction of recording instruments to detect irregularity. Develops picture of seismic wave pattern in photographic developing solution. Examines wave pattern on subterranean strata for evidence of distortion caused by electronic crossfeed, short circuit, or loose connection. Orders redrilling of shot holes and equipment layout to repeat shot. Directs repair or repairs instruments or equipment, using manufacturers' manuals and handtools.
GEOPHYSICAL PROSPECTOR
Gravity-Meter Observer operator; recorder, gravity prospecting Records readings of gravity meter, torsion balance, and other gravity-measuring instruments at various points in terrain to obtain data regarding gravity characteristics indicating potential source of metallic ore or petroleum deposits: Sets up or directs set-up of instruments at specified location and records readings. Examines readings for accurate registration and adjusts instruments to specifications. Reads thermometers, barometers, and other instruments and records variations in temperature, barometric pressure, elevation, and other physical factors that affect instrument readings. May be designated according to instrument used as Gravity-Meter Observer (mine & quarry; petrol. & gas); Magnetometer Operator (mine & quarry; petrol. & gas).
gravity-prospecting operator
gravity-prospecting-operator helper; recorder helper, gravity prospecting Drives truck to transport gravity prospecting personnel and equipment to petroleum-exploration areas. Sets up gravity meter, torsion balance, and other gravity-measuring instruments under direction of OBSERVER, GRAVITY PROSPECTING (petrol. & gas). May read thermometer and barometer and record readings.
gun perforator
gun-perforator operator Operates truck-mounted hoisting equipment and electrical control panel to position and explode charges in oil or gas wells to pierce drill pipes, casings, tubings, and fracture earth formations: Assembles tools and equipment at well site, using handtools. Lowers perforating gun into well, using hoist. Observes odometer, weight indicator, and instrument panel in truck, and positions gun at predetermined point in well. Moves controls at panelboard to detonate charge in gun which propels bullets through wall of bore to pierce or fracture oil- or gas-bearing formations, or to ignite chemical charge which burns fissures in rock formations for passage of oil or processing fluid, such as mud or cement. Observes instrument on control panel to verify detonation of charge in gun. Repairs electrical instruments, using electrician's handtools. Loads perforating guns at well site for special shots.
GUN-PERFORATOR LOADER
Loads explosive powder or chemicals into gun perforators and carriers used in shooting or burning holes through tubing, casings, and earth formations: Assembles perforators, using special handtools. Cleans, gauges, and lubricates gun ports distributed along barrel. Removes gun port, using special wrench. Inserts waterproof sealer and bullet into gun port. Places specified powder charge in powder chamber and screws gun port in place. Screws igniting charge (booster) in place on gun barrel and connects lead wire to cable connection with screwdriver. Inserts special fuse (prima-cord) into carrier of jet perforators. Threads jet-shaped charge on fuse and inserts it into carrier and through port, using special tongs. Inserts specified powder charge in chamber of sidewall sample-taking cylinder and assembles cylinders, using special wrenches. Packs cylinders into boxes for field loading into core barrels. Stores loaded guns, explosives, and related materials in storeroom according to established safety procedures. Maintains inventory records and orders new supplies. May keep gun and explosive records in compliance with local and federal laws.
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