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Line 46: − In a hydrostatic environment, the free-water level of a trap is horizontal. In a hydrodynamic environment, the free-water level of a trap is tilted because the buoyant force (P<sub>b</sub>) is interfered with by the hydrodynamic force (P<sub>w</sub>). The resultant interference is the vector known as the confining force (P<sub>cf</sub>). U, an equipotential line, is perpendicular to P<sub>cf</sub> and is tilted because of the effect of P<sub>w</sub>. The diagram below shows these vectors and the equipotential lines for a hydrocarbon accumulation in an anticline in a hydrodynamic environment. − + + +
Hydrodynamic influence on trapping (view source)
Revision as of 21:23, 10 February 2014
, 21:23, 10 February 2014→Hydrodynamic effect on traps
===Hydrodynamic effect on traps===
===Hydrodynamic effect on traps===
[[file:formation-fluid-pressure-and-its-application_fig5-37.png|thumb|{{figure number|5-37}}Modified. Copyright: North, 1985; courtesy Allen and Unwin.]]
[[file:formation-fluid-pressure-and-its-application_fig5-37.png|thumb|{{figure number|1}}Modified. Copyright: North, 1985; courtesy Allen and Unwin.]]
In a hydrostatic environment, the free-water level of a trap is horizontal. In a hydrodynamic environment, the free-water level of a trap is tilted because the buoyant force (P<sub>b</sub>) is interfered with by the hydrodynamic force (P<sub>w</sub>). The resultant interference is the vector known as the confining force (P<sub>cf</sub>). U, an equipotential line, is perpendicular to P<sub>cf</sub> and is tilted because of the effect of P<sub>w</sub>. The diagram in [[:file:formation-fluid-pressure-and-its-application_fig5-37.png|Figure 1]] shows these vectors and the equipotential lines for a hydrocarbon accumulation in an anticline in a hydrodynamic environment.
==See also==
==See also==