The use of Full Tensor Gravity Gradiometry, or FTG, is becoming increasingly common in the exploration industry. This set of three modules and projects will allow you to become familiar with the dataset as it is used in oil, gas and mineral exploration, gain full background understanding of the components and how the data is acquired.

Each module consists of three videos, a project and a set of notes.

The first module, GR 101 Tensor Gravity (FTG) Gradiometry – An Overview, will cover in:

Video 1 what gravity is and the difference between conventional gravity and gravity gradiometry.
Video 2 consider the reasons for measuring FTG and look at three main ways to use FTG with data examples to illustrate some of the applications.
Video 3 look at how the gravity field is measured, including ground gravity, conventional airborne gravity and gravity gradiometry.

 

The second module, GR 102 Full Tensor Gravity – Understanding the Components, will cover in:

Video 1 understanding the characteristics of the tensor’s signal responses utilizing the modeled responses of a simple block.
Video 2 discuss the signal changes due to target depth, density variations and volume using the modeled responses of simple blocks.
Project GR-501 Full Tensor Gravity Gradiometry (FTG) Understanding the Components Modeled Geological Features
Video 3 analyze signal distortions due to high density variations related to salt and terrain.
Project GR-502 Full Tensor Gravity Gradiometry (FTG) Understanding the Components Real Data

 

The third module, GR 103 Planning and Acquiring an FTG Survey, will cover in:

Video 1 determining if FTG is suitable for surveying the intended exploration objective.
Video 2 planning a survey including requirements for airports, weather and daylight considerations, terrain, liaising with local communities, security concerns, and the International Traffic in Arms Regulations (ITAR).
Video 3 suitability of different platforms for the survey, installation of the FTG and additional instrumentation, and creating the plans to use in the field such as line and drape plans.