The Resistance Array Tool (RAT) is a 12-sensor fluid identification tool determining water hold-up across the wellbore. Water is conductive, whereas hydrocarbons (oil and gas) are nonconductive. Each sensor measures the resistance of the fluid between probes at their tips.
Service Name | RAT |
Length | 1310 mm / 51.4 in |
Weight | 8.2 kg / 18.0 lbs |
OD | 43 mm / 1.688 in |
Maximum opening | 7 in casing |
Maximum pressure | 1030 bar / 15 000 psi |
Maximum temperature | 177 °C / 350 °F |