Changes

{{publication  

{{publication  

  | image  = exploring-for-oil-and-gas-traps.png

  | image  = exploring-for-oil-and-gas-traps.png

  | part    = Predicting the occurrence of oil and gas traps

  | part    = Predicting the occurrence of oil and gas traps

  | chapter = Exploring for stratigraphic traps

  | chapter = Exploring for stratigraphic traps

  | frompg  = 21-1

  | frompg  = 21-45

  | topg    = 21-68

  | topg    = 21-45

  | author  = John C. Dolson, Mike S. Bahorich, Rick C. Tobin, Edward A. Beaumont, Louis J. Terlikoski, Michael L. Hendricks

  | author  = John C. Dolson, Mike S. Bahorich, Rick C. Tobin, Edward A. Beaumont, Louis J. Terlikoski, Michael L. Hendricks

  | link    = http://archives.datapages.com/data/specpubs/beaumont/ch21/ch21.htm

  | link    = http://archives.datapages.com/data/specpubs/beaumont/ch21/ch21.htm

  | isbn    = 0-89181-602-X

  | isbn    = 0-89181-602-X

}}

}}

Lithofacies are interpreted from well data and seismic facies descriptions. Lithofacies interpretations should be based on all available well and outcrop data and on seismic facies interpretations.

[[Lithofacies]] are interpreted from well data and [[Basics of seismic facies analysis|seismic facies]] descriptions. Lithofacies interpretations should be based on all available well and outcrop data and on seismic facies interpretations.

==Procedure==

==Procedure==

Below is a suggested procedure for analyzing lithofacies.

Below is a suggested procedure for analyzing lithofacies.

# Learn as much as possible about the regional geology from well and outcrop control.

# Learn as much as possible about the regional geology from well and [http://www.merriam-webster.com/dictionary/outcrop outcrop] control.

# Describe cores and cuttings from sequences of interest. Besides describing lithology, grain size, and sedimentary structures, also describe pore geometry.

# Describe [[Core description|cores]] and [[Mudlogging: drill cuttings analysis|cuttings]] from sequences of interest. Besides describing lithology, [[grain size]], and [[sedimentary structures]], also describe [[Pore system fundamentals|pore geometry]].

# Calibrate core and cuttings descriptions to well logs and outcrops. Annotate logs with [[porosity]] and [[permeability]] data (if available) from potential reservoir and seal intervals.

# Calibrate core and cuttings descriptions to [[Quick-look lithology from logs|well logs]] and outcrops. Annotate logs with [[porosity]] and [[permeability]] data (if available) from potential reservoir and seal intervals.

# Integrate calibrated well logs into well log [[cross section]]s constructed during well log sequence analysis.

# Integrate calibrated well logs into well log [[cross section]]s constructed during well log [[Sequence stratigraphy|sequence analysis]].

# Interpret depositional environments of lithofacies of depositional sequences using log cross sections and seismic sections with seismic facies analyses.

# Interpret [[depositional environments]] of lithofacies of [[Depositional sequence definition|depositional sequences]] using log cross sections and seismic sections with seismic facies analyses.

==See also==

==See also==

[[Category:Predicting the occurrence of oil and gas traps]]  

[[Category:Predicting the occurrence of oil and gas traps]]  

[[Category:Exploring for stratigraphic traps]]

[[Category:Exploring for stratigraphic traps]]