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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