![Figure F2. Schematic of the logging-while-drilling (LWD) tool string with details of the resistivity-at-the-bit (RAB) tool. VDN = Vision Neutron Density tool, NMR-MRP = Nuclear Magnetic Resonance tool, MWD = measurement- while-drilling tool, Figure F2. Schematic of the logging-while-drilling (LWD) tool string with details of the resistivity-at-the-bit (RAB) tool. VDN = Vision Neutron Density tool, NMR-MRP = Nuclear Magnetic Resonance tool, MWD = measurement- while-drilling tool,](http://www-odp.tamu.edu/publications/204_SR/108/images/08_f02.gif)
Figure F2. Schematic of the logging-while-drilling (LWD) tool string with details of the resistivity-at-the-bit (RAB) tool. VDN = Vision Neutron Density tool, NMR-MRP = Nuclear Magnetic Resonance tool, MWD = measurement- while-drilling tool,
![Division of Marine and Large Programs | Logging-While-Drilling – Compensated Density Neutron Tool (LWD-CDN*) Division of Marine and Large Programs | Logging-While-Drilling – Compensated Density Neutron Tool (LWD-CDN*)](https://mlp.ldeo.columbia.edu/wp-content/uploads/2016/06/cdr-cdn-1-1.jpeg)
Division of Marine and Large Programs | Logging-While-Drilling – Compensated Density Neutron Tool (LWD-CDN*)
What is MWD? | borehole | Measurement While Drilling (MWD), also known as Logging While Drilling (LWD), is a measurement is taken of the wellbore (the hole) inclination from... | By Oil
![Measurement While Drilling (MWD) Systems Selection Guide: Types, Features, Applications | GlobalSpec Measurement While Drilling (MWD) Systems Selection Guide: Types, Features, Applications | GlobalSpec](https://www.globalspec.com/ImageRepository/LearnMore/201511/Mud%20pulse%20telemetry%20diagram57d437219b7b405c91103e4fd4e518b3.png)