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352 RESERVOIR COMPACTION, SUBSIDENCE AND WELL DAMAGE
Figure 11.7 The finite element mesh for the model presented in this chapter.
Figure 11.8 Detail of the diatomite reservoir rock.
modeled using zero-thickness contact elements. A linear Coulomb friction law
relating the shear slip with the shear stress on the contact surface governed the
surface interactions. In this work, frictional contact elements were placed at the
depths of the Al and Dl shales, and at the Tulare-diatomite unconformity. The
friction factor was varied as a study parameter, with values of 0, 0.2, and 0.6
being used. These friction factors were consistent with previous studies of
