19 May 2016 In-drilling alignment scheme for borehole assembly trajectory tracking over a wireless ad hoc network
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Abstract
This paper describes the feasibility and implementation of an In-drilling alignment method for an inertia navigation system based measurement while drilling system as applied to the vertical drilling process, where there is seldom direct access to a reference measurement due the communication network architecture and telemetry framework constraints. It involves the sequential measurement update of multiple nodes by the propagation of the reference measurement sequentially over nodes, each of which has an integrated inertia measurement unit sensor and runs the extended Kalman filter based signal processing unit, until the final measurement update of the main sensor node embedded in the borehole assembly is done. This is done particularly to keep track of the yaw angle position during the drilling process.
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E. Odei-Lartey, E. Odei-Lartey, K. Hartmann, K. Hartmann, "In-drilling alignment scheme for borehole assembly trajectory tracking over a wireless ad hoc network", Proc. SPIE 9872, Multisensor, Multisource Information Fusion: Architectures, Algorithms, and Applications 2016, 98720B (19 May 2016); doi: 10.1117/12.2218259; https://doi.org/10.1117/12.2218259
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