Journals

Modeling Displacement Flow Inside a Full-Length Casing String for Well Cementing, August 24, 2023

Ali Eslami, Laval University; Jason Schneider, Sanjel Energy Services; Fred Schwering, Athabasca Oil Corporation; Hu Dai and Gefei Liu, Pegasus Vertex, Inc., S2096-2495(23)00057 Paper.
An integrated numerical model has been introduced, designed to precisely simulate displacement flows within full-length pipes for cementing operations. This innovative solution addresses the longstanding challenge of predicting efficiency and flow dynamics in pipe-based cementing, offering a streamlined approach that outperforms conventional methods. Validated through laboratory tests and real-world case studies, this model showcases its reliability and potential to transform cementing engineering practices.

Combination of Methods to Assess the Success of a Cement Sheath Placement While Rotating, June 15, 2023

Lenin Diaz, Better-Cementing-For-All; John McCormick, Pegasus Vertex, Inc., GES23-162 Paper.
This paper delves into multiple analysis methods for validating cement quality. It provides industry professionals with valuable insights and practical strategies for enhancing cement quality assessment.

Simulating Cement Plug Temperature During Pull-out-of-hole, June 15, 2023

Hu Dai and John McCormick, Pegasus Vertex, Inc., GES23-275 Paper.
This paper sheds light on the "Pull and Pump" feature within PlugPRO, focusing specifically on its temperature-related aspects.

Engineered Offshore Displacements: Description, Tools, and Field Results, April 14 - 15, 2020

John McCormick and Shuai Wang, Pegasus Vertex, Inc.; Ryan Riker, Gene Chabaud, Chris Detiveaux, Leigh Gray and Andrew DeFrees, Newpark Fluids Systems, AADE 20-FTCE-026 Paper.
This paper presents and discusses use of the software in the development and field applications of engineered displacements for Gulf of Mexico deepwater completion operations, compares predictive models with field data from two wells, and discusses common practices for spacer train design.

Drilling Fluid Reporting: From Data to Insight, April 14 - 15, 2020

Yuan Yao and Zhibin Sun, Pegasus Vertex, Inc.; Chuck Light, Valence Drilling Fluids LLC, AADE 20-FTCE-014 Paper.
This paper was prepared for presentation at the 2020 AADE Fluids Technical Conference and Exhibition. Authors explain how users can apply the methods mentioned in the paper to find out the wells with a certain feature, further analyze and pedict the trend of wells to support decision making.

Displacement Demystified, March 2017

Dr. Hu and Gefei Liu, Oilfield Technology, March 2017.
In this article, Dr. Hu and Gefei Liu explain how to improve displacement efficiency in cementing jobs.

Design and Simulation of Foamed Cement Jobs (РАСЧЕТ И МОДЕЛИРОВАНИЕ ПРОЦЕССА ЦЕМЕНТИРОВАНИЯ ПРИ ПРИМЕНЕНИИ ВСПЕНЕННОГО ТАМПОНАЖНОГО РАСТВОРА), June 2015

Gefei Liu, Russian Oil & Gas Technology magazine (OGT), June 2015.

Factoring In The Top 5, June 2014

Gefei Liu, Oilfield Technology Magazine, June 2014.
In this article, Gefei Liu, Pegasus Vertex, Inc., USA, examines five main factors that must be taken into account when centralizing casing during cementing operations.

CEMVIEW - Cementing Engineering Calculations Made Easy (ПРОГРАММА CEMVIEW ОБЛЕГЧАЕТ РАСЧЕТ ПАРАМЕТРОВ ЦЕМЕНТИРОВАНИЯ), January 2014

Gefei Liu, Russian Oil & Gas Technology magazine (OGT), January 2014.

Torque and Drag - Every Drilling and Completion Engineer Should Know (ПРЕДСТАВЛЕНИЕ О КРУТЯЩЕМ МОМЕНТЕ И ТРЕНИИ), May 2013

Gefei Liu, Russian Oil & Gas Technology magazine (OGT), May 2013.

Seeing Through Software, September 2012

Gefei Liu, Cissy Zhao, Oilfield Technology Magazine, September 2012.