Blackriver Geoscience LLC
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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


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