초록 ▼

A downhole production well control system is provided for automatically controlling downhole tools in response to sensed selected downhole parameters. The production well having a production tubing string therein with multiple branches, i.e., zones. Communication and transmission of power (i.e. tele

A downhole production well control system is provided for automatically controlling downhole tools in response to sensed selected downhole parameters. The production well having a production tubing string therein with multiple branches, i.e., zones. Communication and transmission of power (i.e. telemetry) over the production tubing string is by way of a combination of a hardwire system in the main borehole and a short hop system at the branches or laterals. Each zone includes a downhole control system and appropriate completion devices for controlling fluid flow. An acoustic or electromagnetic transceiver is associated with each control system for communication and/or transmission of power. An electrical conductor runs from the surface downhole along the production tubing string in the main borehole for communication and/or transmission of power, hardwired systems are well known. The conductor is connected to an acoustic or electromagnetic transceiver disposed at the production tubing string in the main borehole near each branch. These transceivers communicate with and/or transfer power to corresponding transceivers at the branches (i.e., short hop communications), which is communicated and/or transferred along the production tubing string on the conductor (i.e., uphole or downhole).

대표청구항 ▼

[ What is claimed is:] [1.] A system for telemetering signals in a production well between a first completed zone and a second completed zone, comprising:a cable disposed in said first completed zone for telemetering signals in said first completed zone;a first electromagnetic device disposed in sai

[ What is claimed is:] [1.] A system for telemetering signals in a production well between a first completed zone and a second completed zone, comprising:a cable disposed in said first completed zone for telemetering signals in said first completed zone;a first electromagnetic device disposed in said second completed zone; anda second electromagnetic device in communication with said cable, said second electromagnetic device being disposed in said first completed zone near said second completed zone for electromagnetically telemetering said signals from said cable to said first electromagnetic device within the well to provide direct communication between said first electromagnetic device and said second electromagnetic device wherein said signals comprise at least one of communication signals and power signals and wherein said first and second electromagnetic devices are discrete devices relative to one another.