Flow control nozzles, method of manufacture and use thereof

An outflow control nozzle for use with a tubing, said nozzle comprising:

• a. a one-piece, 3D printed body, said body comprising:
• i. an injection fluid inlet in communication with an inside of the tubing;
• ii. one ore more injection fluid outlets in communication with an outside of the tubing, said outlets each having an oval cross section;
• and
• iii. an inner bore connecting the injection fluid inlet to each of the one or more injection fluid outlets, each of said inner bores including a venturi restriction, wherein said inner bore comprises a flared and curved profile from the injection fluid inlet to the venturi restriction, and a flared profile from the venturi restriction to the injection fluid outlet,
• wherein said curved profile is free of elbows, angular bends or sharp direction change.

An inflow-outflow control nozzle for use with a casing, said nozzle comprising:

• a. a one-piece, 3D printed body, said body comprising:
• i. a first port in communication with an outside of the tubing said first port having an oval cross section;
• ii. a second port in communication with an inside of the tubing;
• and
• iii. an inner bore connecting the first port to the second port, said inner bore including a venturi restriction wherein said inner bore comprises a reverse flared profile from the first port to the venturi restriction, and a flared and curved profile from the venturi restriction to the second port,
• wherein said curved profile is free of elbows, angular bends or sharp direction change.