Well completion apparatus

Claim 1

APPARATUS FOR USE IN WELL COMPLETION WHICH COMPRISES, IN COMBINATION, A SINGLE TUBING STRING IN A WELLBORE SPACED FROM THE WELL CASING THEREOF AND PASSING THROUGH A PLURALITY OF VERTICALLY SPACED HYDROCARBON PRODUCTIVE FORMATIONS SEPARATED BY RELATIVELY IMPERMEABLE, NON-PRODUCTIVE FORMATIONS; PACKING MEMBERS VERTICALLY SPACED APART IN SAID WELLBORE PROVIDING A SEALED OFF SECTION IN THE ANNULUS BETWEEN SAID WELL CASING AND SAID TUBING STRING TO ISOLATE AT LEAST ONE OF SAID HYDROCARBON PRODUCTIVE FORMATIONS FROM OTHERS OF SAID FORMATIONS; A MANDREL CONNECTED INTO SAID TUBING STRING IN SEQUENTIAL FLUID COMMUNICATION THEREWITH LOCATED BETWEEN SAID PACKING MEMBERS AND EXPOSED TO THE ISOLATED HYDROCARBON PRODUCTIVE FORMATION; SAID MANDREL BEING PROVIDED WITH AN INLET BETWEEN TWO OF SAID PACKING MEANS FOR RECEIVING PRODUCTION FLUID FROM SAID ISOLATED HYDROCARBON PRODUCTIVE FORMATION; MEANS POSITIONED IN THE MANDREL INLET TO CONTROL THE FLOW OF PRODUCTION FLUID THERETHROUGH FROM SAID ISOLATED HYDROCARBON PRODUCTION FORMATION; A FLOWMETER ADAPTED TO BE LOWERED INTO SAID TUBING STRING AND POSITIONED IN SAID MANDREL, AND PROVIDED WITH AN INLET IN COMMUNICATION WITH THE AFORESAID MEANS TO CONTROL THE FLOW OF PRODUCTION FLUID AND AN OUTLET; AND