[[file:formation-fluid-pressure-and-its-application_fig5-37.png|300px|thumb|{{figure number|1}}Vectors and equipotential lines for a hydrocarbon accumulation in an anticline in a hydrodynamic environment. Modified. Copyright: North;<ref name=North1985>North, F. K., 1985, Petroleum Geology: London, Allen & Unwin, 246 p.</ref> courtesy Allen and Unwin.]] | [[file:formation-fluid-pressure-and-its-application_fig5-37.png|300px|thumb|{{figure number|1}}Vectors and equipotential lines for a hydrocarbon accumulation in an anticline in a hydrodynamic environment. Modified. Copyright: North;<ref name=North1985>North, F. K., 1985, Petroleum Geology: London, Allen & Unwin, 246 p.</ref> courtesy Allen and Unwin.]] |