Factors and detection capability of look-ahead logging while drilling ...
Feb 1, 2025 · Electromagnetic technology used in logging while drilling (LWD) provides the resistivity distribution around a borehole within a range of several tens…
Real-time forward modeling and inversion of logging-while-drilling ...
Feb 1, 2021 · By introducing priori information of offset/pilot wells and using the classic responses of LWD EM, the interac- tive inversion of LWD EM logging in horizontal wells is capable of providing real …
Logging While Drilling - an overview | ScienceDirect Topics
Logging while drilling (LWD) refers to systems and techniques for gathering down-hole data during drilling without removing the drill pipe from the well. LWD tools, which are instrumented drill collars, …
Real-time estimation of geomechanical characteristics using drilling ...
Jan 1, 2025 · A common issue with LWD tools is their offset from the drill bit, leading to depth discrepancies that compromise the real-time aspect of Vs predictions. Our model synchronizes …
Effects of formation structure on directional electromagnetic logging ...
Apr 1, 2022 · The directional EM LWD tools are of great importance in geosteering and reservoir navigation by analyzing geosignals and estimating formation resistivity. An efficient 2.5D FDM …
The use of light weight deflectometer for in situ evaluation of sand ...
Dec 1, 2014 · The light weight deflectometer (LWD) is a hand portable falling weight device that first appeared in 1981 at Magdeburg, Germany and developed as in situ testing device by the Federal …
Importance of drilling-related processes on the origin of borehole ...
Jun 1, 2023 · The LWD tools are installed within drill collars at the lowermost part of the drill string and allow the real-time quantification of perturbations (e.g. pressure) while drilling as well as their impact …
Prediction of daily leaf wetness duration using multi-step machine ...
Sep 1, 2024 · Abstract Accurately predicting leaf wetness duration (LWD) is vital for effective plant disease management outbreaks and timely warnings. This study introduces an innovative approach …
A fast forward algorithm of azimuthal gamma imaging logging while ...
Apr 1, 2023 · An algorithm to achieve the fast simulation of azimuthal gamma logging response and imaging are introduced. Logging while drilling (LWD) technology can evaluate the formation interface …
Resistivity correction for drilling fluid invasion using LWD and wire ...
Aug 1, 2010 · The effect of drilling fluid invasion on the resistivity of oil-bearing zones during the period from penetrating the zone to completion well logging w…
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