Journals

• Comparing the Results of a Full-Scale Buckling Test Program to Actual Well Data: New Semi-Empirical Buckling Model and Methods of Reducing Buckling Effects - Dec., 2011

  Authored by Sarah Mitchell and Dr. Norman Bruce Moore, WWT International Inc./ James Franks, Pioneer Natural Resources/ and Gefei Liu and Yanghua (Lily) Xiang, Pegasus Vertex Inc., SPE Drilling & Completion, Volume 26, Number 4, pp. 578-596, December 2011.

• Drilling Software Reduces Risk and Optimizes Operation (УМЕНЬШЕНИЕ РИСКОВ И ОПТИМИЗАЦИЯ БЛАГОДАРЯ ИСПОЛЬЗОВАНИЮ ПРИ БУРЕНИИ ПРОГРАММНЫХ СРЕДСТВ) - July, 2011

  Rachel Bi and Gefei Liu, Russian Oil & Gas Technology magazine (OGT), July 2011.

• Casing wear in extended reach and multilateral wells - Jun., 2010

  Ali Y. Garkasi, Yanghua Xiang and Gefei Liu, World Oil Magazine, June 2010.

• Software assists wellbore cleanup - Jan., 2003

  Gefei Liu, Hart's E&P Magazine, January 2003.

• Predicting surge pressures that result from running liners - Apr., 2001

  Gefei Liu, World Oil Magazine, April 2001.

• Foam Computer Model Helps in Analysis of Underbalanced Drilling - Jul., 1996

  Gefei Liu and George H. Medley, Oil & Gas Journal, July 1996.

• Fracture Tip and Critical Stress Intensity Factor of a Hydraulically Induced Fracture - Aug., 1993

  C.H. Yew and Gefei Liu, SPE Production & Facilities, August 1993.