Water cut apparatus

Claim 1

APPARATUS FOR PERIODICALLY INDICATING AND RECORDING THE WATER CONTENT OF CRUDE OIL FLOWING FROM A PLURALITY OF OIL WELLS, SAID APPARATUS COMPRISING A FLOW LINE FROM EACH OF SAID WELLS TO CARRY THE CRUDE OIL TO STORAGE A TEST TANK FOR CONTAINING CRUDE OIL, BY-PASS CONDUIT MEANS IN COMMUNICATION BETWEEN SAID WELL FLOW LINES AND THE TEST TANK, VALVE MEANS IN SAID FLOW LINES AND BY-PASS CONDUIT MEANS FOR CONNECTING ONE BY-PASS CONDUIT AT A TIME TO SAID TEST TANK, INLET AND OUTLET FLOW VALVES FOR FILLING AND EMPTYING SAID TEST TANK, LIQUID LEVEL CONTROL MEANS OPERATIVELY CONNECTED TO THE INLET FLOW VALVES OF SAID TEST TANK FOR CLOSING SAID INLET VALVE, A STANDPIPE POSITIONED VERTICALLY WITHIN SAID TEST TANK ADAPTED TO CONTAIN A COLUMN OF A STANDARD FLUID OF KNOWN SPECIFIC GRAVITY, DIFFERENTIAL-PRESSURE MEASURING MEANS IN COMMUNICATION ON ONE SIDE WITH THE STANDARD FLUID IN SAID STANDPIPE AND ON THE OTHER SIDE WITH THE CRUDE OIL IN SAID TEST TANK, ELECTRICAL CIRCUIT MEANS MECHANICALLY LINKED TO AND ADAPTED TO BE UNBALANCED BY SAID DIFFERENTIAL-PRESSURE MEASURING MEANS, AND WELL SELECTOR SWITCH MEANS FOR PERIODICALLY AND CONSECUTIVELY ENERGIZING THE VALVE MEANS IN SAID FLOW LINE AND BY-PASS CONDUIT MEANS FROM EACH OF SAID OIL WELLS TO CONNECT ONE WELL AT A TIME TO SAID TEST TANK.