log-analysis-applications_fig2.png|{{figure number|2}}Interactive [[Basic open hole tools#Spontaneous potential|spontaneous potential (SP)]] baseline flattening. The user selects points on the raw SP curve, which represent zero deflection (that is, baseline = 100% shale). By projecting the baseline between two consecutive points, SP deflections are calculated and redisplayed as a baselined (or “static”) SP. | log-analysis-applications_fig2.png|{{figure number|2}}Interactive [[Basic open hole tools#Spontaneous potential|spontaneous potential (SP)]] baseline flattening. The user selects points on the raw SP curve, which represent zero deflection (that is, baseline = 100% shale). By projecting the baseline between two consecutive points, SP deflections are calculated and redisplayed as a baselined (or “static”) SP. |