Difference between revisions of "Borehole gravity: uses, advantages, and disadvantages"

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The following characteristics give [[borehole gravity]] surveys advantages in certain situations:
 
The following characteristics give [[borehole gravity]] surveys advantages in certain situations:
  
* Directly measures bulk density
+
* Directly measures [[Basic_open_hole_tools#Density|bulk density]]
 
* Is a deep imaging tool
 
* Is a deep imaging tool
 
* Is effective in both cased and uncased wells
 
* Is effective in both cased and uncased wells
* Is unaffected by washouts, hole rugosity, or mud invasion effects
+
* Is unaffected by [[washout]]s, [[hole rugosity]], or [[mud invasion]] effects
* Can help determine seismic wavelet scale density
+
* Can help determine [[seismic wavelet scale density]]
 
* Is a passive measurement, e.g., does not have active radioactive sources
 
* Is a passive measurement, e.g., does not have active radioactive sources
  

Revision as of 20:20, 27 May 2014

Exploring for Oil and Gas Traps
Series Treatise in Petroleum Geology
Part Predicting the occurrence of oil and gas traps
Chapter Applying gravity in petroleum exploration
Author David A. Chapin, Mark E. Ander
Link Web page
Store AAPG Store

Borehole gravity uses

Borehole gravity is especially effective for the following exploration and production purposes:

Exploration purposes

Production purposes

Borehole gravity advantages

The following characteristics give borehole gravity surveys advantages in certain situations:

Borehole gravity disadvantages

The following characteristics give borehole gravity surveys disadvantages in certain situations:

  • Direction away from the well to distant source cannot be determined without other information
  • Engineering limitations of the tool restricts use to certain candidate wells (hole size, low deviation, slow reading)
  • Only a few tools presently available for use
  • Expensive to operate

See also

External links

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Borehole gravity: uses, advantages, and disadvantages
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