"From Data to Decisions: Harnessing the Potential of Language Based AI in Drilling"

The 2026 IADC/SPE International Drilling Conference and Exhibition.

C. Chatar, P. Sheth

“Method For Real-Time Bit Efficiency and Damage Monitoring; Leveraging Offset Data and Domain”

SPE/IADC International Drilling Conference and Exhibition, 2025

Wei Chen, Zhengxin Zhang, Yuelin Shen, Gregory Skoff, Crispin Chatar, Julien Converset, Huseyin Murat Panayirci, Ole Gjertsen, Lucia Cazares

“A Method for Detecting and Solving Auto Driller Instability: A Real-Time Control System Solution”

Abu Dhabi International Petroleum Exhibition & Conference, 2024

Crispin Chatar, Paul Pastusek, Julien Converset, Nathan Wicks, Gregory. S. Payette, Tyler Quarles, Pablo Barajas

"Interpretation of Along-String-Measurements and Downhole Tool Data as a Solution for Intelligent Hole Cleaning in Real-Time"

IADC/SPE International Drilling Conference and Exhibition, 2024

Chatar, Crispin; Converset, Julien; Sharma, Sunil  

"New Techniques for Intelligent Offset Data Analysis Using Artificial Intelligence"

IADC/SPE International Drilling Conference and Exhibition, 2024

Sheth, Prasham; Chatar, Crispin  

"Real-Time Gamma Ray Log Generation from Drilling Parameters of Offset Wells

Using Physics-Informed Machine Learning"

SPE Journal, 2024

Sheth, Prasham; Sistla, Sai Shravani; Roychoudhury, Indranil; Gao, Mengdi; Chatar,

Crispin; Celaya, Jose; Mishra, Priya  

"Extended Reality and Gamification for Drilling"

SPE/IADC International Drilling Conference and Exhibition, 2023

Chatar, Crispin; Lokesh, Rajat; Kamboj, Vineet; Saetern, Danny  

"Machine Learning-Based Drilling System Recommender: Towards Optimal BHA and

Fluid Technology Selection"

SPE/IADC International Drilling Conference and Exhibition, 2023

Skoff, Gregory ; Mahfoudh, Fatma ; Jeong, Cheolkyun ; Makarychev-Mikhailov, Sergey

; Petryshak, Oleh ; Vesselinov, Velizar ; Chatar, Crispin ; Bondale, Vijay ; Devadas, Manju  

"Real-Time Digital Log Generation from Drilling Parameters of Offset Wells Using

Physics Informed Machine Learning"

SPE/IADC International Drilling Conference and Exhibition, 2023

Sheth, Prasham; Sistla, Sai Shravani; Roychoudhury, Indranil; Gao, Mengdi; Chatar,

Crispin; Celaya, Jose; Mishra, Priya  

"Real-Time Gamma Ray Log Generation from Drilling Parameters of Offset Wells

Using Physics-Informed Machine Learning"

SPE Journal, 2023

Sheth, Prasham; Sistla, Sai Shravani; Roychoudhury, Indranil; Gao, Mengdi; Chatar,

Crispin; Celaya, Jose; Mishra, Priya  

"Software-Based Three-Dimensional Scan of a Drill Bit; Advances in Technology and Applications"

SPE/IADC International Drilling Conference and Exhibition, 2023

Chatar, Crispin; Mulchandani, Kishore  

"A Hybrid Physics-Based and Machine-Learning Approach for Stick/Slip Prediction"

IADC/SPE International Drilling Conference and Exhibition, 2022

Sheth, Prasham; Roychoudhury, Indranil; Chatar, Crispin; Celaya, José

"Vision Analytics for Decreasing HSE Risk and Improving Worksite Efficiency"

IADC/SPE International Drilling Conference and Exhibition, 2022

Chatar, Crispin; Konchenko, Andrey; Goncharov, Maxim

"Determining Rig State from Computer Vision Analytics"

SPE/IADC International Drilling Conference and Exhibition, Virtual, March 2021, 2021

Chatar, Crispin; Suresha, Suhas; Shao, Laetitia; Gupta, Soumya; Roychoudhury, Indranil

"Digitization of Drill Bit Inspections; User-Centered Design Methods to Automate

Robotic Inspections"

SPE Annual Technical Conference and Exhibition, 2021

Ma, Marrie ; Murphy, Jeremy ; Salman, Nader ; Li, Zhen ; Chatar, Crispin ; Chatagnier, Justin

"A Voice Interface for Drilling Systems"

(SPE-199569-MS) IADC/SPE International Drilling Conference and Exhibition, 2020 Chatar, Crispin; Huang, Zhe; Hadrovic, Peter

"Oilfield Virtual Twin"

(SPE-201745-MS) SPE Annual Technical Conference and Exhibition, 2020

Konchenko, Andrey; Chatar, Crispin; Doronichev, Sergey; Saetern, Danny; Bruns, Jared

"Recurrent Auto Encoders for Automatic Sensor Validation; Tomorrows Data with Yesterday's Sensors"

(SPE-199615-MS) IADC/SPE International Drilling Conference and Exhibition, 2020 Gupta, Soumya; Chatar, Crispin; R. Celaya, José

"Machine Learning Lessons Learnt in Stick-Slip Prediction"

(SPE-197584-MS) Abu Dhabi International Petroleum Exhibition & Conference, 2019 Gupta, Soumya; Chatar, Crispin; Celaya, José R.

"The Digital Directional Drilling Evolution"

Abu Dhabi International Petroleum Exhibition & Conference, 2019

Stepnov, Alexey; Chatar, Crispin; El Hawy, Ahmed; Cassel, Justin; Abouassi, Basem; Khader, Celine

"Zero Wellsite Personnel. The First Truly Man-Less Operation for Directional Drilling Services"

(SPE-191586-MS) SPE Annual Technical Conference and Exhibition, 2018

Chatar, Crispin; Stepnov, Alexey; Mardyashov, Anton; Fedotov, Viacheslav

"The Value of High-Definition Wellbore Surveys in an Arctic Land Environment"

(SPE-184620-MS) SPE/IADC Drilling Conference and Exhibition, 14-16 March, The Hague, The Netherlands, 2017

Bevzenko, Vladimir; Chatar, Crispin; Gorichka, Marian; Kuznetsov, Aleksey; Abzalov, Zarif

"Remote Directional Drilling and Logging While Drilling Operations in the Arctic"

(SPE-178873-MS) IADC/SPE Drilling Conference and Exhibition, 2016

Chatar, Crispin; Stepnov, Alexey; Mardyashov, Anton; Gonzalez, Juan Raul Elizondo

"Anti-Collision Considerations for Arctic and Other High Latitude Locations"

(SPE-173047-MS) SPE/IADC Drilling Conference and Exhibition, 2015

Chatar, Crispin ; Beck, Nathan ; Simeone, Davide ; Buchanan, Andrew ; Borri, Luca ; Occhionero, Lara

"Effective BHA Design and Vibration Modeling for Improving the Quality of Sonic

Measurements"

(SPE-140326-MS) SPE/IADC Drilling Conference and Exhibition, 2011 Chatar, C. ; Blyth, M.

"Drilling Deep in Deep Water: What It Takes to Drill Past 30,000 Ft" (SPE-128190-MS) IADC/SPE Drilling Conference and Exhibition, 2010 Chatar, C. ; Israel, R. ; Cantrell, A.

"Overcoming a Difficult Salt Drilling Environment in the Gulf of Mexico: A Case Study" (SPE-128192-MS) IADC/SPE Drilling Conference and Exhibition, 2010 Chatar, C. ; Mohan, S. ; Imler, M.

"Directional Drilling Challenges For Deep Wells-Modeling Side Force Limits"

AADE 2009NTCE-14-03, NEW ORLEANS, LOUISIANA-2009  Chatar Crispin, D'Ambrosio Piero, Clyde Robert

"Drilling Optimization For Dirty Salt"

OFFSHORE ENGINEER'S DRILLING & COMPLETIONS HAZARDOUS ZONES TECHNICAL

CONFERENCE FOR 2009, GALVESTON, TEXAS .Chatar Crispin

"A hole cleaning comparison between high and low angle wells"

OFFSHORE ENGINEER'S DRILLING & COMPLETIONS HAZARDOUS ZONES TECHNICAL

CONFERENCE FOR 2010, GALVESTON, TEXAS. Chatar Crispin

"Anti-collision and Wellbore Positioning in the Arctic – Looking at Risk Prevention and Mitigation"

Arctic Drilling Safety Preparedness and Response Conference- Anchorage, Alaska, USA 2013. Crispin Chatar

Patent Applications and Grants