Well Logging Qiuz

State whether True or False

S.No.-Question-Answer

01-Well log is a continuous record of a geophysical property along a borehole-True

02.-Depth of investigation of focused current resistivity tools is smaller than those of unfocussed tools-False

03.-No current source is used for SP log recording-True

04-High resistivity is always indicator of hydrocarbons-False

05-Induction resistivity tool is preferred over latero type tool in non conducting muds-True

06-Density log is basically a porosity log-True

07-Gamma Ray log is used as lithology indicator-True

08-Positive SP is developed against reservoir  section when salinity of formation water is more than that of mud filtrate-False

09-Dipmeter is based upon resistivity measurements-True

10-Neutron porosity (PHIN) increases with presence of gas-False