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, …
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…
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 …
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 …
Applying transfer learning to address data scarcity: A case study on ...
Nov 1, 2024 · 5. Conclusion This study addresses the complexities of petroleum engineering, particularly in real-time LWD operations, by demonstrating the significant potential of transfer learning. Our …
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 …
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 …
Determining the resilient modulus of sandy subgrade using cyclic light ...
Mar 1, 2021 · The most practical advantages of LWD are that the setup and test times of LWD are relatively short [42], [37]. In addition, LWD testing is safe and the field inspector is able to remain …
Thin layer identification using a theoretical X-ray logging while ...
Jun 1, 2025 · 5. Conclusions Based on an actual LWD density tool, this work replaces the traditional gamma source with a controllable X-ray source and optimizes the source spacing of the short- and …
Remediation of LWD data lag with hybrid real-time data using self ...
Jan 1, 2025 · This study aims to address the lag issue in Logging While Drilling (LWD) data, which is crucial for real-time decision-making in subsurface resource e…