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| + | {{merge|Normal hydrostatic pressure}} |
| {{publication | | {{publication |
| | image = exploring-for-oil-and-gas-traps.png | | | image = exploring-for-oil-and-gas-traps.png |
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| | part = Critical elements of the petroleum system | | | part = Critical elements of the petroleum system |
| | chapter = Formation fluid pressure and its application | | | chapter = Formation fluid pressure and its application |
− | | frompg = 5-1 | + | | frompg = 5-8 |
− | | topg = 5-64 | + | | topg = 5-8 |
| | author = Edward A. Beaumont, Forrest Fiedler | | | author = Edward A. Beaumont, Forrest Fiedler |
| | link = http://archives.datapages.com/data/specpubs/beaumont/ch05/ch05.htm | | | link = http://archives.datapages.com/data/specpubs/beaumont/ch05/ch05.htm |
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| | isbn = 0-89181-602-X | | | isbn = 0-89181-602-X |
| }} | | }} |
− | ==Definition==
| + | Abnormal hydrostatic pressure is a departure from normal fluid pressure that is caused by geologic factors. The term “[http://www.glossary.oilfield.slb.com/en/Terms/g/geopressure.aspx geopressure]” was introduced originally by Shell Oil Company to refer to overpressured intervals in the U.S. Gulf Coast. “Geopressure” is gradually being replaced by the more descriptive terms “[http://en.wikipedia.org/wiki/Geologic_overpressure overpressure]” and “[http://www.glossary.oilfield.slb.com/en/Terms/u/underpressure.aspx underpressure].” |
− | | |
− | Abnormal hydrostatic pressure is a departure from normal fluid pressure that is caused by geologic factors. The term “[[geopressure]]” was introduced originally by Shell Oil Company to refer to overpressured intervals in the U.S. Gulf Coast. “Geopressure” is gradually being replaced by the more descriptive terms “[[overpressure]]” and “[[underpressure]].” | |
| | | |
| ==Causes== | | ==Causes== |
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| * [[Uplift]] | | * [[Uplift]] |
| * [[Burial]] | | * [[Burial]] |
− | * [[Rock compaction]] or [[Rock dilation|dilation]] | + | * [[Reservoir_quality#Compaction|Rock compaction]] or [[Rock dilation|dilation]] |
| * Abnormal [[heat flow]] | | * Abnormal [[heat flow]] |
| | | |
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| | Heat increase || Heat decrease | | | Heat increase || Heat decrease |
| |- | | |- |
− | | [[Compaction]], [[Petroleum generation|Generation of hydrocarbons]] || Dilation of pores | + | | [[Reservoir_quality#Compaction|Compaction]], [[Petroleum generation|Generation of hydrocarbons]] || Dilation of pores |
| |} | | |} |
| | | |
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| [[Category:Critical elements of the petroleum system]] | | [[Category:Critical elements of the petroleum system]] |
| [[Category:Formation fluid pressure and its application]] | | [[Category:Formation fluid pressure and its application]] |
| + | [[Category:Treatise Handbook 3]] |