Abstract: A flow control nozzle for regulating flow of fluid into a pipe comprises a body having a portion that is adapted to be received within an opening in the pipe, wherein the body includes a channel extending from an inlet to an outlet opening into the pipe. The channel includes a first section extending from the inlet and a second section extending to the outlet, wherein the first and second sections are connected at an elbow and wherein the first section has a constant cross-sectional area and the second section has a diverging cross-sectional area. An apparatus comprising the flow control nozzle and a base pipe and a screen.

Abstract: An apparatus for controlling the flow of reservoir fluids into production tubing comprises abase pipe, a screen, a nozzle being adapted to receive filtered reservoir fluids passing through the screen, and a diverter adapted to receive the fluids from the nozzle and to divert such fluids into a port extending into the base pipe. The nozzle includes at least one converging-diverging section, whereby pressure of the fluids passing there-through is reduced.

Abstract: A flow control nozzle for regulating flow of fluid into a pipe comprises a body having a portion that is adapted to be received within an opening in the pipe, wherein the body includes a channel extending from an inlet to an outlet opening into the pipe. The channel includes a first section extending from the inlet and a second section extending to the outlet, wherein the first and second sections are connected at an elbow and wherein the first section has a constant cross-sectional area and the second section has a diverging cross-sectional area. An apparatus comprising the nozzle and a base pipe and a screen is also described.

Abstract: A coupling for joining two pipes, such as casing joints includes opposed ends having threads for engaging threaded ends of the respective pipes and a generally centrally located corrugated section, which provides the coupling with a degree of flexion in response to lateral stresses or loads.