1
John B Weirich, Ronald G Bland, William W Smith Jr, Volker Krueger, John W Harrell, Hatem N Nasr, Valeri Papanyan: Drilling systems with sensors for determining properties of drilling fluid downhole. Baker Hughes Incorporated, Madan Mossman & Sriram P C, January 23, 2001: US06176323 (272 worldwide citation)

The present invention provides a drilling system for drilling oilfield boreholes or wellbores utilizing a drill string having a drilling assembly conveyed downhole by a tubing (usually a drill pipe or coiled tubing). The drilling assembly includes a bottom hole assembly (BHA) and a drill bit. The bo ...


2
James V Leggett III, Vladimir Dubinsky, John W Harrell, William Thomas Balogh, Paul J G Seaton, Andrew G Brooks, Roger P Herbert: Drilling system with an acoustic measurement-while-driving system for determining parameters of interest and controlling the drilling direction. Baker Hughes Incorporated, Madan Mossman & Sriram P C, July 11, 2000: US06088294 (262 worldwide citation)

The present invention provides a system for drilling boreholes having a downhole subassembly which contains an acoustic measurement-while-drilling system. The acoustic system contains an acoustic transmitter and receiver for determining the acoustic velocity through the formations surrounding the bo ...


3
John W Harrell, Vladimir Dubinsky, James V Leggett III: Closed loop drilling system. Baker Hughes Incorporated, Madan & Morris PLLC, November 24, 1998: US05842149 (224 worldwide citation)

The present invention provides a closed-loop drilling system for drilling oilfield boreholes. The system includes a drilling assembly with a drill bit, a plurality of sensors for providing signals relating to parameters relating to the drilling assembly, borehole, and formations around the drilling ...


4
Paulo S Tubel, Glynn Williams, Michael H Johnson, John W Harrell, Jeffrey J Lembcke, Kurt A Hickey, Nigel Leggett: Monitoring of downhole parameters and tools utilizing fiber optics. Baker Hughes Incorporated, Madan Mossman & Sriram P C, August 28, 2001: US06281489 (182 worldwide citation)

This invention provides a method for controlling production operations using fiber optic devices. An optical fiber carrying fiber-optic sensors is deployed downhole to provide information about downhole conditions. Parameters related to the chemicals being used for surface treatments are measured in ...


5
Robert P MacDonald, Volker Krueger, Hatem N Nasr, John W Harrell, Roger W Fincher: Drilling system with integrated bottom hole assembly. Baker Hughes Incorporated, Madan Mossman & Sriram P C, March 27, 2001: US06206108 (166 worldwide citation)

The present invention provides a drilling system that utilizes an integrated bottom hole assembly. The bottom hole assembly contains sensors for determining the health of the bottom hole assembly, borehole condition, formation evaluation characteristics, drilling fluid physical and chemical properti ...


6
Benn Voll, Michael H Johnson, John W Harrell: Flow control apparatus and methods. Baker Hughes Incorporated, Madan Mossman & Sriram P C, September 5, 2000: US06112817 (162 worldwide citation)

The present invention provides a method for obtaining equalized production from deviated wellbores. A plurality of spaced apart flow control device are deployed along the length of the wellbore. The fluid from various zones are drawn in a manner that depletes the reservoir uniformly along the entire ...


7
John W Harrell, Valdimir Dubinsky, James V Leggett III: Closed loop drilling system. Baker Hughes Incorporated, Madan Mossman & Sriram P C, May 15, 2001: US06233524 (154 worldwide citation)

The present invention provides a closed-loop drilling system for drilling oilfield boreholes. The system includes a drilling assembly with a drill bit, a plurality of sensors for providing signals relating to parameters relating to the drilling assembly, borehole, and formations around the drilling ...


8
Nils Reimers, John W Harrell, James V Leggett III, Paulo S Tubel: Method of obtaining improved geophysical information about earth formations. Baker Hughes Corporation, Madan Mossman & Sriram P C, May 23, 2000: US06065538 (115 worldwide citation)

The present invention provides a method for forming wellbores. In one method, one or more wellbores are drilled along preplanned paths based in part upon seismic surveys performed from the surface. An acoustic transmitter conveyed in such wellbores transmits acoustic signals at a one or more frequen ...


9
John L Bearden, John W Harrell, Jerald R Rider, Gordon L Besser, Michael H Johnson, Paulo S Tubel, Larry A Watkins, Daniel J Turick, Joseph F Donovan, J V Henry, Dick L Knox: Electrical submersible pump and methods for enhanced utilization of electrical submersible pumps in the completion and production of wellbores. Baker Hughes Incorporated, Felsman Bradley Vaden Gunter & Dillon, January 2, 2001: US06167965 (111 worldwide citation)

An improved electrical submersible pump is disclosed in which a processor downhole is utilized to monitor one or more subsurface conditions, to record data, and to alter at least one operating condition of the electrical submersible pump. Novel uses are described for downhole gas compression, the de ...


10
John W Harrell, Michael H Johnson, Daniel J Turick, Larry A Watkins: Method and apparatus for drilling and completing wells. Baker Hughes Incorporated, Gerald W Spinks, September 16, 1997: US05667023 (94 worldwide citation)

A method and apparatus for drilling and completing a bore hole are disclosed. The method comprises positioning a work string in the well, with a bottom hole assembly attached. The bottom hole assembly can include a drill bit, a drilling motor, orientation instrumentation, and a completion assembly. ...