Directional drilling techniques require real-time sensing of the drill bit direction and the
downhole environment from the measurement-while-drilling (MWD) sensor module …

Downhole acoustic telemetry (DAT), using a long drill string with periodical structures as the
channel, is a prospective technology for improving the transmission rate of logging while …

This paper represents a new scheme using the drill strings as the medium to deliver logging
information via a compressional acoustic wave. Considering the comb-type frequency …

In order to understand critical vibration of a drill bit such as stick-slip and bit-bounce and
their wave propagation characteristics through a drill string system, it is critical to model the …

Drill string acoustic telemetry is an effective transmission method to retrieve downhole data.
Finite-difference simulations produce the comb-filter-like channel response (patterns of pass …

For reducing costs in drilling technology, seismic prediction while drilling (SPWD) is
envisioned. SPWD needs a fast data link bringing up the seismic data from bottomhole to the …

Transmission of information from the downhole of oil wells to the drilling platform on the
surface is a key part of drilling operations for oil exploration and extraction. Important data …

This paper presents a new method to model and to simulate the propagation properties of
the acoustic wave in periodic pipelines. First, an ideal model of pipeline and its dispersion …

Drill string communications are important for drilling efficiency and safety. The design of a
low latency drill string communication system with high throughput and reliability remains an …

To achieve real‐time and high‐speed communication between the surface and the bottom
hole, acoustic communication along drill strings has become the most promising method for …