Line 6: |
Line 6: |
| | part = Traps, trap types, and the petroleum system | | | part = Traps, trap types, and the petroleum system |
| | chapter = Classification of exploration traps | | | chapter = Classification of exploration traps |
− | | frompg = 2-1 | + | | frompg = 2-41 |
− | | topg = 2-42 | + | | topg = 2-41 |
| | author = Richard R. Vincelette, Edward A. Beaumont, Norman H. Foster | | | author = Richard R. Vincelette, Edward A. Beaumont, Norman H. Foster |
| | link = http://archives.datapages.com/data/specpubs/beaumont/ch02/ch02.htm | | | link = http://archives.datapages.com/data/specpubs/beaumont/ch02/ch02.htm |
Line 23: |
Line 23: |
| ! Regime || Class || Subclass || Family | | ! Regime || Class || Subclass || Family |
| |- | | |- |
− | | rowspan = 4 | ''Fluid-composition traps''; Result from a chemical property of the trapped oil or gas. || rowspan = 3 | ''Viscosity traps;'' Petroleum can be trapped by the presence of barriers created by highly [[Wikipedia:Viscosity|viscous]] oil ([[asphalt]], [[tar]]) or solid hydrocarbons ([[albertite]], [[gilsonite]], or [[grahamite]]). || ''Tar Seals'' || ''Bacterial degradation;'' Updip tar seal created by [[bacteria degradation]] of the hydrocarbons, preferentially removing the [[lighter fractions]]. | + | | rowspan = 4 | ''Fluid-composition traps''; Result from a chemical property of the trapped oil or gas. || rowspan = 3 | ''[[Viscosity]] traps;'' Petroleum can be trapped by the presence of barriers created by highly viscous oil ([[asphalt]], [[tar]]) or solid hydrocarbons ([[albertite]], [[gilsonite]], or [[grahamite]]). || ''Tar Seals'' || ''Bacterial degradation;'' Updip tar seal created by [[bacteria degradation]] of the hydrocarbons, preferentially removing the [[lighter fractions]]. |
| |- | | |- |
| | colspan = 2 | ''Disseminated;'' Tar or asphalt fills the pores of [[shale]]s, [[sandstone]]s, or [[carbonate]]s. These traps are often called [[tar sands]], [[oil shale]]s, bituminous sandstones, or bituminous limestones. | | | colspan = 2 | ''Disseminated;'' Tar or asphalt fills the pores of [[shale]]s, [[sandstone]]s, or [[carbonate]]s. These traps are often called [[tar sands]], [[oil shale]]s, bituminous sandstones, or bituminous limestones. |
Line 29: |
Line 29: |
| | colspan = 2 | ''Veins;'' The solid, essentially infusible form of petroleum is called [[pyrobitumen]]. It occurs in veins [[length::1 mm]] to [[length::8 m]] across and appears to have been injected or is a dead seepage. | | | colspan = 2 | ''Veins;'' The solid, essentially infusible form of petroleum is called [[pyrobitumen]]. It occurs in veins [[length::1 mm]] to [[length::8 m]] across and appears to have been injected or is a dead seepage. |
| |- | | |- |
− | | colspan = 3 | ''Coal-bed methane;'' [[Coal bed]]s trap large volumes of [[Wikipedia:Methane|methane]], where most is [[Wikipedia:Adsorption|adsorbed]] onto internal surfaces of [[micropore]]s or along [[cleat face]]s. [[Coalification]] generates methane along with water, [[Wikipedia:Carbon dioxide|carbon dioxide]], and [[Wikipedia:Carbon monoxide|carbon monoxide]]. | + | | colspan = 3 | ''[[Coal bed methane]];'' [[Coal]] beds trap large volumes of [[Wikipedia:Methane|methane]], where most is [[Wikipedia:Adsorption|adsorbed]] onto internal surfaces of [[micropore]]s or along [[cleat face]]s. [[Coalification]] generates methane along with water, [[Wikipedia:Carbon dioxide|carbon dioxide]], and [[Wikipedia:Carbon monoxide|carbon monoxide]]. |
| |} | | |} |
| | | |
Line 44: |
Line 44: |
| [[Category:Traps, trap types, and the petroleum system]] | | [[Category:Traps, trap types, and the petroleum system]] |
| [[Category:Classification of exploration traps]] | | [[Category:Classification of exploration traps]] |
| + | [[Category:Treatise Handbook 3]] |