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  | isbn    = 0-89181-602-X

  | isbn    = 0-89181-602-X

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[[Buoyancy pressure]]s caused by hydrocarbon columns can be recognized by comparing hydrostatic pressure gradients with formation pressures. Pressures exceeding expected hydrostatic pressures could be due to the presence of hydrocarbon columns.

[[Buoyancy pressure]]s caused by [[hydrocarbon column]]s can be recognized by comparing [[Normal hydrostatic pressure gradients|hydrostatic pressure gradients]] with formation pressures. Pressures exceeding expected hydrostatic pressures could be due to the presence of hydrocarbon columns.

Two items are critical for detecting buoyancy pressure in a well:

Two items are critical for detecting buoyancy pressure in a well:

* Accurate static water plot for the well

* Accurate static water plot for the well

* Reliable formation fluid pressure measurements

* Reliable formation fluid pressure measurements (See [[Methods for obtaining formation fluid pressures]])

==Procedure==

==Procedure==