Aug 14, 2024 · In this paper, we presents modeling and actual examples to demonstrate that the laterolog can often provide a superior resistivity measurement for formation evaluation to that of the LWD EMP tool.

This research presents an FL (federated learning)-based architecture specifically applied to address the lag in logging while drilling (LWD) data, where physical separation between LWD tools and the drill bit introduces delays in real-time formation information.

Introduction LWD sonic tools have advanced significantly in the last decade. They now routinely provide wireline quality compressional and shear curves in many formations, and often provide these data in real time to aid with drilling decisions.

The electromagnetic-wave resistivity (EWR) tool has become the standard of the logging while drilling (LWD) environment. Historically the earliest LWD electromagnetic measurements were …

Dec 1, 2022 · The evolution of rotary steerable systems (RSS) and logging-while-drilling (LWD) technology in the early 2000s addressed this demand by deploying fit-for-purpose tools and services to improve the economic viability of oil and gas fields around the world.

Sep 24, 2018 · The aim of this paper is to show through different case histories, how the various tool types can affect the formation evaluation model and a possible approach to mitigate the problem. The case study includes logs from different WLL and LWD tools, different well diameters, deviations and lithologies.

Jan 28, 2025 · All LWD propagation tools are run with a gamma ray tool for lithology estimation and correlation. Log data are transmitted uphole in real time using mud-pulse telemetry. Downhole memory and batteries allow raw and processed data to be stored for later retrieval.

Logging while drilling (LWD) refers to the addition of wireline-quality formation measurements to the directional data of a Measurement While Drilling (MWD) service.

Dec 31, 2013 · The latest logging-while-drilling (LWD) technology integrates downhole fluid analysis and sampling with formation pressure while drilling (FPWD), thereby providing environmental, economic, time-saving, and data quality benefits over traditional methods of reservoir characterization.

Mar 31, 2015 · One tool that is used to provide information for optimizing stimulation and well placement is the LWD microimager. These tools produce detailed electrical images of the borehole and show natural and induced fractures, faults, formation breakout, vugs, and other fine details of the formation.