Sedimentological Analysis & Core Description

Input Data

• Borehole images  
• GR 
• Bulk Density, Neutron, Pe 
• Resistivity 
• Core, if any 

Workflow

• Borehole images are interpreted with sedimentary structure types, textural description as well as structural dip determined;
• Lithology is defined using open-hole logs;
• Grain size might be derivable integrtaing a few open-hole logs with images when some whole core is available for calibration;
• Core, if available, is described with lithology, grain-size and other textural details, sedimentary structures, bioturbation, fossile, facies contact, etc. 
• Facies & facies association determination;
• Sequence trends & contact types;
• Paleocurrent analysis;
• Depostional environment interpretation.

Output

• Sedimentary structure & texture description 
• Paleocurrent orientation & predicted likely sandbody geometry
• Electro-facies output   
• Facies association & depositional environmental interpretation

Benefits

• Fast turn around time.
• Continuous electro-facies for entire logged zone
• Paleocurrent orientation without oriented core 
• Facies association & understood depositional environment 
• Prediction of likely sandbody geometry

 

Core Description

• Lithology
• Grain size
• Sedimentary structures 
• Bed boundary types
• Sequence boundary
• Diagenetic features evident in core (nodules, cementation, etc).
• Faults and fractures
• Bioturbation index 
• Hydrocarbon staining.
• Degree of cementation
• Bed thicknesses
• Lithofacies types and facies associations
• Standard presentation and deliverables