1
Paslay Paul R, Jan Yih Min: Method of determining drillstring bottom hole assembly vibrations.. Atlantic Richfield Co, July 7, 1993: EP0550254-A2 (11 worldwide citation)

Lateral vibrations of drillstring bottom hole assemblies are confirmed by sensing longitudinal and torsional accelerations or displacements of the drillstring at or near its top end during rotation and determining the lateral critical speed and displacement of the drillstring from the mode shape of ...


2
Schuh Frank J, Jan Yih Min, Bseisu Amjad A: Measuring drillstem loading and behavior. Atlantic Richfield Co, April 13, 1988: GB2195773-A (5 worldwide citation)

A drillstem loading and behavior measurement method and system includes spaced apart subs disposed at the upper end of the drillstem and connected to each other and to a power or conventional swivel and having strain gages and accelerometers mounted thereon in such a way as to measure axial loading, ...


3
Montgomery Carl T, Jan Yih Min: A method for real time process control of well stimulation. Atlantic Richfield Co, October 9, 1996: EP0736131-A1

A system (10) and method for matrix stimulation field monitoring providing real time control, optimization and post job evaluation of matrix treatments is disclosed herein. Using calculated or measured bottom hole pressures or coil tubing reflective pressures, the system (10) and method predicts pre ...


4
Bseisu Amjad A, Jan Yih Min, Schuh Frank J: Systeme de mesure des charges exercees sur les trains de sonde et methode connexe, Measuring drillstem loading and behavior. Atlantic Richfield Company, OSLER HOSKIN & HARCOURT, June 2, 1992: CA1302117

ABSTRACT OF THE DISCLOSURE A drillstem loading and behavior measurement methodand system includes spaced apart subs disposed at theupper end of the drillstem and connected to each otherand to a power or conventional swivel and having straingages and accelerometers mounted thereon in such a wayas to ...


5
Montgomery Carl T, Jan Yih Min: A method for real time process control of well stimulation. Atlantic Richfield Company, ROGERS Joseph E, June 29, 1995: WO/1995/017581

A system (10) and method for matrix stimulation field monitoring providing real time control, optimization and post job evaluation of matrix treatments is disclosed herein. Using calculated or measured bottom hole pressures or coil tubing reflective pressures, the system (10) and method predicts pre ...