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Introduction to Field Work

Estimated Time to Complete:

6 hours 20 minutes

(average of 20 minutes per Subtopic)

Introduces the field aspects of reflection seismology, examining seismic exploration in the field on land, at sea, and in between. Describes elements of seismic operation instruments, locations, people and steps taken by seismic crews to record high quality data.

Details various tasks and environments peculiar to land-oriented field work. Emphasizes use of explosive sources and safety of operations. Stresses public relations due to direct impact of land work on land owners, lessees and political bodies.

Analyzes field work at sea and in the transition zone. Examines equipment, costs and special problems, hazards, requirements and advantages of field work in marine settings. Particular attention is paid to navigational systems.

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Total Number of Subtopics: 19
  • expand/collapse Introduction to Field Work
    • Overview
  • expand/collapse Improving the Signal-to-Noise Ratio
    • Ambient Noise Reduction
    • Coherent Noise Reduction
    • Scattered Noise Reduction
    • Arrays and Groups
    • Ghost Reflections
  • expand/collapse Multiple Coverage in Action
    • Multiple Coverage Assumptions
    • 2D Coverage
    • 3D Coverage
    • Converted Wave
  • expand/collapse Recording Instruments
    • Introduction
    • Station Selection
    • Amplification
    • Fine Tuning the Signal
    • Recording
    • Wireless Recording Systems
    • Equipment Testing
    • The Total System
  • expand/collapse The Land Seismic Source
    • Explosive Sources
    • Other Shooting Methods
    • Non Explosive Sources
  • expand/collapse The Land Seismic Receiver
    • Overview
  • expand/collapse The Seismic Record
    • Event Identification
    • Spatial Sampling
  • expand/collapse Acquisition Constraints
    • Typical Numbers
  • expand/collapse Maps and Imagery in Seismic Planning
    • Maps and Imagery in Seismic Planning
    • Google Earth and Mapping Tools
  • expand/collapse Costs and Contracts
    • Contractual Considerations
    • Typical Seismic Contract.
  • expand/collapse Marine Work
    • Overview
    • Typical Seismic Vessel Specifications
    • Seismic Vessel Overview
    • Shipboard Processing
    • Marine Streamers and Recording Instruments
    • Streamer Maintenance
    • Marine Seismic Source
    • Water Guns
    • Source Signatures
  • expand/collapse The Transition Zone
    • Making the Transition
    • Special Equipment
  • expand/collapse Multi-Component Data
    • Overview
  • expand/collapse Organization of the Field Crew
    • Organizing the Field Crew
  • expand/collapse Safety
    • Overview
  • expand/collapse The Location of Seismic Lines
    • Objectives and Considerations
  • expand/collapse The Observer's Report
    • Overview
  • expand/collapse Introduction to Field Work: Exercises
    • Exercise 1 (Solution)
    • About this Course
    • Exercise 2 (Solution)
    • Exercise 3 (Solution)
    • Exercise 4 (Solution)
    • Exercise 5 (Solution)
    • Exercise 6 (Solution)
    • Exercise 7 (Solution)
    • Exercise 8 (Solution)
    • Exercise 9 (Solution)
    • Exercise 10 (Solution)
  • expand/collapse Introduction to Field Work: References and Additional Information
    • Websites
    • References
    • Additional Reading
(Use the '+' and '-' buttons to expand or collapse each Subtopic Title individually for details.)