1. Temperature Conductivity/Logging/Natural Gamma
The probe provides a continuous, depth-based measurement of fluid temperature and conductivity with natural gamma detector.
2. Normal Resistivity
A low-frequency bi-directional electric current from a source electrode on the probe returns through the formation to the cable armour above an insulated bridle. Potentials due to this current flow are measured on various sense electrodes on the probe with respect to a voltage reference ‘fish’ normally located at the surface. These measurements are converted to apparent formation resistivities within the probe and transmitted to the surface.
Measurements
• 16” Normal resistivity
• 64” Normal resistivity
• Single-point resistance
• Self-Potential (SP)
• Natural-gamma
• Fluid Temperature
• Optional 8” and 32” Normal resistivity
3. Televiewer (HRat)
The operating principal of this probe is to produce a high-resolution imaging of the borehole wall using high frequencies acoustic waves. The minimum diameter of the borehole should be of HQ size.
Applications
• Identify the fractures and orientation
• Stratigraphic studies
• Local stress studies (break out)
• Core orientation
• Cased-hole studies
