ABSTRACT

This chapter simplifies the features into a salt "plug" and salt "lens" and shows that an allochthonous salt layer is migrating under the subsurface. As an application of an one-dimensional (1-D) dynamical fluid-flow/compaction model, it details the effects of salt insertion on burial history, temperature distribution, and thermal maturation of sediments around the salt. The presence of moving salt sills in the subsurface can significantly influence the prognosis for hydrocarbon potential. The thermal anomalies associated with the movement of a salt sill will impact the temperature regime experienced by the sediments. The dynamical evolution of the salt path through the sedimentary sequences has a major impact on both the migration path and trapping of hydrocarbons. In a purely 1-D situation, the temperature distribution above the salt sheet is not influenced by the presence of the salt.