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Regular version of the site

Article

Testing of dispatching module of a system that controls well drilling in designed trajectory

Neftyanoe Khozyaistvo - Oil Industry. 2016. No. 12. P. 136-139.
Kychkin A., Krysin N., Krivoshchekov S., Melekhin A., Turbakov M., Riabokon E., Shcherbakov A.

The article describes testing of dispatching module of developing telemetry system of well borehole trajectory monitoring for well drilling with use of rotary steerable system. A scheme of reliability evaluation and a stand for load testing of program apparatus complex of surface equipment are discussed. A scheme includes communication controller, input module, and operator’s station and power supplies. These functional units, connected in series, create dispatching system with performance parameters that may be evaluated by continuous formation, sending, processing and saving of recorded data on well state. A well is modeled on regimes close to real production on a drill site. Load testing on stand consist of formation and sending of data array from communication controller to an operator’s station. An array carries time label with date and time, coordinates in metrical notation system and attributes – data about odometry, azimuthal angles and temperature. Modeling signals on well trajectory and additional attribute parameter, arrived to dispatching module, provide automated test regime of program apparatus complex of surface equipment of dispatching module and allow revealing elements that decrease general reliability of entire system of telemetry monitoring on development stage. During continuous load testing failures of program code of operator’s station are found. Border conditions when a system maintains reliable state during long time and parameters of information transmission rate are determined. Based on scheme of series connection reliability of dispatching system main parameters of reliability are calculated.