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Design of Turbine System for Positive Mud-Pulse Telemetry

[+] Author Affiliations
Andrew Amini, Xiaobo Peng

Prairie View A&M University, Prairie View, TX

Paper No. GT2017-64062, pp. V009T27A014; 9 pages
  • ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition
  • Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy
  • Charlotte, North Carolina, USA, June 26–30, 2017
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-5096-1
  • Copyright © 2017 by ASME


This paper presents the design of a turbine system that powers an alternator in a Positive Mud Pulse Telemetry (P-MPT) system, a Measurement While Drilling tool (MWD) used in the petroleum industry. With rig rates exceeding $1 million per day and wells that are drilled at depths of over 30,000 ft (9144 m), operators need to have an MWD tool that can provide continuous power while drilling without interruption. With our design of the turbine component for the P-MPT system, it allows the signals of directional drilling information to be continuously transmitted while concurrently drilling.

This paper presents the turbine system for a P-MPT system with the testing and analysis for operational conditions. The turbine system consists of a stationary vein positioned 0.25 inches (0.635 centimeters) apart from a rotating vein that is connected to the shaft-alternator system. The turbine system was manufactured with 3D printing. An experimental wind tunnel was built to simulate a downhole drilling environment by applying density scaling techniques to model flow in drilling fluid. The testing results of the turbine system are presented and discussed, including differential pressure, no-load rotation speed (RPM), stall torque, and power. CFD analyses were performed. The wind tunnel experimental data were validated by the CFD analyses. The results show that the turbine system design is functional for the P-MPT system.

Copyright © 2017 by ASME
Topics: Design , Turbines , Telemetry



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