Results 41 to 50 of about 3,718 (163)

Numerical analysis and experimental study of fluid return pressure for mud-pulse telemetry

open access: yes2011 IEEE 3rd International Conference on Communication Software and Networks, 2011
The deep-sea drilling vessel "CHIKYU" is a riser-equipped, dynamically positioned scientific drill ship owned and operated by the Japan Agency for Marine-Earth Science and Technology (JAMSTEC), and built for the purpose of scientific research and exploratory expeditions.
Junya Ishiwata   +3 more
core   +2 more sources

Channel Modeling and Characterization for Mud Pulse Telemetry

open access: yes, 2023
Channel Modeling and Characterization for Mud Pulse ...
jia, M
core   +2 more sources

Pengambilan Data Inklinasi dan Azimuth dalam Proses Measurement While Drilling (MWD) Menggunakan Metode Mud-pulse Telemetry pada Sumur X Lapangan Y [PDF]

open access: yes, 2023
Mud Pulse Telemetry dengan Continuous Wave System dapat mengirimkan data secara kontinu dan realtime serta dapat mengukur hingga kedalaman 1,268 meter.
Fauzan, Geusan Buana
core  

Making risk-informed decisions to optimize drilling operations using along string measurements with Wired drill pipe a high-speed, high-quality telemetry alternative to traditional mud pulse telemetry. [PDF]

open access: yes, 2021
The ever-increasing demand for energy resources has led to drilling more complex and challenging wells. The information required to navigate through these complex geologies is provided by highly sophisticated sensors embedded in logging-while-drilling ...
Z. Ruysschaert, W. Gabriel
core  

Real-Time Data Transmission and Drilling Performance: Analyses Including Data Propagation Agility in Boreholes, Drilling Parameters and Information Transmission Through MPT Systems

open access: yesData
This research-related study examines the relevance of mud pulse telemetry (MPT) systems and their intersection with drilling performance, focusing on data transmission signal propagation performance and overall operation under different drilling ...
Andreas Nascimento   +4 more
doaj   +1 more source

Do Coexisting Cryptic Species of Predatory Peacock Bass (Cichliformes: Cichlidae) Partition Their Niche?

open access: yesEcology of Freshwater Fish, Volume 35, Issue 3, July 2026.
ABSTRACT The mechanisms facilitating coexistence of cryptic species in sympatry have long puzzled ecologists. Cryptic species have nearly identical morphology and, therefore, would be presumed to have high niche overlap and potential for interspecific competition and competitive exclusion when resources are limited. Lowland rivers in South America have
Benton L. Fry, Kirk O. Winemiller
wiley   +1 more source

Design and Shallow-Hole Validation of a Low-Flow Mud-Pulse MWD Pulser Head for Wireline Coring

open access: yesApplied Sciences
In recent years, small-borehole wireline coring has become increasingly dependent on trajectory control, downhole condition sensing, and real-time directional decision-making.
Shuhao Tan   +6 more
doaj   +1 more source

Embodied Intelligence for Soil Health toward Sustainable Smart Agriculture: Sensing the Soil with Flexible Geotextiles Sensors

open access: yesGlobal Challenges, Volume 10, Issue 6, June 2026.
This review examines the transition from rigid to flexible soil sensing technologies in the context of soil as a dynamic and heterogeneous environment. By integrating sensor types, sensing modalities, materials, fabrication and deployment strategies, and IoT‐enabled energy and communication approaches, it highlights geotextiles as scalable sensing ...
Ayse Feyza Yilmaz   +7 more
wiley   +1 more source

The United States Magnetotelluric Array and the National Impedance Map

open access: yesReviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract The United States Magnetotelluric Array (USMTArray) data set, collected in the years 2006–2024, consists of more than 1,700 long‐period magnetotelluric stations covering the entirety of the contiguous United States on a quasi‐regular 70 km grid.
Anna Kelbert   +7 more
wiley   +1 more source

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