Results 71 to 80 of about 1,167 (156)

Drillstring Vibration Identification Based on Data Augmentation and Automated Machine Learning

Shiyou jixie
Accurate identification of downhole drillstring vibration is significant for improving drilling efficiency and reducing complex risks. However， traditional vibration identification mechanisms and methods are based on several hypotheses， making them ...
Pan Tao, Song Xianzhi, Liu Muchen, Xiao Shijie, Qin Yonghe, Zhu Zhaopeng, Zhang Chengkai   +6 more
doaj  

Machine Learning Solution for Predicting Vibrations while Drilling the Curve Section. [PDF]

ACS Omega, 2023
Saadeldin R, Gamal H, Elkatatny S.
europepmc   +1 more source

Maximizing the value of information from high-frequency downhole dynamics data [PDF]

, 2017
Downhole drilling dynamics are poorly understood. Neither models nor experiments seem capable of fully describing the movements and forces of the drillstring during drilling. Downhole measurements could potentially hold the key to those missing insights,
Baumgartner, Theresa Helene
core   +1 more source

Study on Rotor-Bearing System Vibration of Downhole Turbine Generator under Drill-String Excitation

Energies
Downhole turbine generators (DHTG) installed within drill-string are susceptible to internal and external excitation during the drilling process, causing significant dynamic loads on bearings, and thereby reducing the bearing’s service life.
Benchun Yao, Zhen Tian, Xu Zhan, Changyun Li, Hualong Yu   +4 more
doaj   +1 more source

Investigation of drillstring vibration reduction tools [PDF]

, 2012
Drilling related problems such as drillstring vibration is an important cause of premature failure of drillstring components and drilling inefficiency. The vibration of drillstring interferes with measurement collected while drilling.
Al Dushaishi, Mohammed Fayez
core   +1 more source

Real-Time Drilling Performance Optimization Using Automated Penetration Rate Algorithms with Vibration Control

Fuels
Automation has transformed process optimization across industries by enhancing efficiency, safety, and reliability while minimizing human intervention.
Dan Sui
doaj   +1 more source

LATERAL VIBRATION ANALYSIS OF DRILLSTRING USING FINITE ELEMENT METHOD [PDF]

, 2015
This project investigates lateral vibration of a drillstring under the action of weight on bit and drillstring rotation. The dominant cause of drillstring and bottom hole assembly’s failures, shocks and severe damages to borehole wall is recognized to be
A/L VADEVELOO, PIRAWIN
core  

A review of torsional vibration mitigation techniques using active control and machine learning strategies

Petroleum
Drilling is one of the most challenging and expensive processes in hydrocarbon extraction and geothermal well development. Dysfunctions faced during drilling can increase the non-productive time (NPT) greatly, resulting in inflating the drilling cost and
Aditya Sharma, Khizar Abid, Saket Srivastava, Andres Felipe Baena Velasquez, Catalin Teodoriu   +4 more
doaj   +1 more source

Research on a Measurement Method for Downhole Drill String Eccentricity Based on a Multi-Sensor Layout. [PDF]

Sensors (Basel), 2021
Li H, Wang R.
europepmc   +1 more source

Prediction-based control of linear input-delay system subject to state-dependent state delay – Application to suppression of mechanical vibrations in drilling

, 2016
International audienceIn this paper, we consider linear dynamics subject to a distributed state-dependent delay and a pointwise input-delay. We propose a prediction-based controller which exponentially stabilizes the plant. The controller design is based
Bresch-Pietri, Delphine, Di Meglio, Florent   +1 more
core