A professional who plans and directs activities of field party engaged in collecting seismic data used in prospecting for oil or gas. Responsibilities include:

• Designates location of shot holes and placement of seismometers and connecting cables over blast area according to plot drawn by surveyor, geophysical prospecting.
• 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 seismograph shooter 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.