GEOLOGY & GEOPHYSICS
Exploring geological formations and geophysical processes to identify potential reservoirs and determine their characteristics is a key task in the oil and gas industry. This process involves analyzing drilling data, interpreting seismic data, creating three-dimensional models, and other methods.
How It Works
1
Interpreting drilling data:
Drilling data provides valuable information about geological formations underground, including rock types, their thickness, permeability, and the presence of oil or gas. Building drilling logs is one way to visualize this information. An example of a drilling log graph shows parameters such as density, sonic velocity, clay content, and others, aiding in understanding the composition of rock formations and identifying potential reservoirs.
2
Interpretation of seismic data:
Seismic data is utilized to create images of subsurface structures, aiding in identifying geological formations, structures, and the presumed location of hydrocarbon reservoirs. An example of a seismic profile is a cross-section of the Earth's crust obtained through seismic tomography, enabling conclusions to be drawn about the structure of subsurface layers and potential reservoir locations.
3
Creating three-dimensional models:
Based on collected data and its interpretation, three-dimensional models of subsurface structures are constructed. These models allow visualization of geological formations and facilitate analyses to determine optimal drilling locations. An example of a three-dimensional model is a representation of geological formations used to determine well locations and assess the potential productivity of the reservoir.
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