High-temperature downhole telemetry device for the control of high hydrocarbon production

摘要

The invention relates to the oil and gas industry and can be used in downhole submersible pump installations (UEPN) to monitor the current production parameters and characteristics of submersible motors (SEM) for the extraction of highly viscous hydrocarbons using thermal methods. It provides increased reliability, operating life, the reliability of the measuring instrument information, the monitoring of basic parameters in the extraction of high viscosity hydrocarbons. Summary of the utility model: high-temperature downhole telemetry apparatus comprising transducer medium pressure, the transmitter of the fluid temperature, an analog-digital converter. In addition to measuring the parameters of the medium has a temperature transducer manufacturing equipment, test signal generator, an analog multiplexer, a logic unit, modulator, power supply module, and the signal line. Each output transducer and the output test signal generator coupled to a corresponding analog input of the analog multiplexer, and its output is connected to the signal input of the analog-digital converter whose output is fed to the logic module input, a first output of which is connected to the control input of the analog-to-digital converter, a second output to a control input of the analog multiplexer, and the third output is connected to a modulator whose output is fed to a signal line which is also connected to the power module. The signal line connecting the device with the surface equipment can be single- or double-wire circuit with feedback on the production string and casing may be structurally incorporated into the power cable supplying an electric submersible pump unit, or formed as a separate cable. Remote power modules and high-temperature downhole telemetry node device and transmission of information signals carried on separate wires, or carried out by a single common wire.