Drilling speed and depth computation for downhole tools

J Sugiura - US Patent 9,970,285, 2018 - Google Patents
A method for managing a drilling operation includes generating, by a first sensor and a
second sensor of a bottom hole assembly (BHA), a first time based data log and a second …

LWD real-time borehole image transmission

B Yu, H Yu, R Hutin, Y Sun - US Patent 9,885,236, 2018 - Google Patents
Data transmission from a bottom hole assembly (BHA) includes obtaining a scan from
multiple scans forming a downhole data log of a borehole within a subterranean formation …

Methods of elemental imaging of formations and systems for producing the same

L Xu, W Yang, J Wang - US Patent 10,451,766, 2019 - Google Patents
Methods of elemental imaging of a formation include acquiring spectral gamma ray
measurement, acquiring a total gamma ray image, deriving structure information of the …

Simulated core sample estimated from composite borehole measurement

JB Peyaud, Q Zhang - US Patent 10,392,919, 2019 - Google Patents
Methods, systems, and devices for evaluating an earth formation intersected by a borehole
using information from standard resolution measurements. Methods include generating an …

Visualization of look-ahead sensor data for wellbore drilling tools

RT Hay - US Patent 10,711,590, 2020 - Google Patents
Abstract Systems and methods for visualizing data from radially-oriented look-ahead
sensors coupled to a drill bit are disclosed herein. A system comprises a processor, a …

Downhole ultrasound image correction in oil based mud

W Yu, P Li, C Chang, R Coates, RA Marlow… - US Patent …, 2024 - Google Patents
Disclosed herein is a method for eccentricity correction. This method may dispose a
downhole tool into a borehole. The downhole tool may comprise a measuring assembly that …

Downhole ultrasound image correction in oil based mud

W Yu, P Li, C Chang, R Coates, RA Marlow… - US Patent …, 2022 - Google Patents
A method for generating acoustic images corrected for distortions caused by attenuation of
the ultrasonic signal by the mud may comprise disposing a downhole tool into a borehole …

Virtual core generation and modeling

H Zhang, NP Alarcon - US Patent 11,402,539, 2022 - Google Patents
Embodiments include a method that includes extracting a low resolution formation property
model and a high resolution formation property model from at least one log. The method …

Borehole log data processing methods

PAS Elkington, S Assous, J Whetton - US Patent 10,074,202, 2018 - Google Patents
A method of processing borehole log data to create one or more image logs involve
modelling the log data as components of an image in the form i (x, y)= l (x, y)× r (x, y)(1), in …