Imaging the Morrow A Sandstone Using Shear Wave VSP Data, Postle Field, Oklahoma

Figure 10

Drilling-induced fractures form in a drilled borehole in direction of the maximum horizontal stress. FMI logs could depict drilling-induced fractures on borehole wall clearly. (a) represents a part of the FMI log from the well HMU 24-4. The azimuth of the induced-drilling fractures (the high conductive vertical features) on the borehole wall was picked for two wells (HMU 24-4 and JULIAN 6-15). (b) and (c) show the azimuth of the drilling-induced fractures in the wells.