Patents

Yu, L. and Kriegshäuser, B., 2010, Method and apparatus for use of the real component of a magnetic field of multicomponent resistivity measurements: United States Patent 7,737,697.

 

Fanini, O., Forgang, S., Kriegshäuser, B., and Yu, L., 2010, Method and apparatus for a multi-component induction instrument measuring system for geosteering and formation resistivity data interpretation in horizontal, vertical and deviated wells: United States Patent 7,719,282.

 

Merchant, G., Fanini, O., Kriegshäuser, B., and Yu, L., 2009, Method and apparatus for the use of multicomponent induction tool for geosteering and formation resistivity data interpretation in horizontal wells: United States Patent 7,612,566.

 

Merchant, G., Fanini, O., Kriegshäuser, B., and Yu, L., 2008, Method and apparatus for the use of multicomponent induction tool for geosteering and formation resistivity data interpretation in horizontal wells: United States Patent 7,463,035.

 

Yu, L. and Kriegshäuser, B., 2006, Method and apparatus for use of the real component of a magnetic field of multicomponent resistivity measurements: United States Patent 7,336,080.

 

Fanini, O., Forgang, S., Kriegshäuser, B., and Yu, L., 2007, Method and apparatus for a multi-component induction instrument measuring system for geosteering and formation resistivity data interpretation in horizontal, vertical and deviated wells: United States Patent 7,268,556.

 

Yu, L., Kriegshäuser, B., and Fanini, O., 2006, Real time processing of multicomponent induction tool data in highly deviated and horizontal wells: United States Patent 7,043,370.

 

Kriegshäuser, B., Fanini, O., Mollison, R., Yu, L., Wang, T., and Tang, X., 2005, Method of using electrical and acoustic measurements for fracture identification: United States Patent 6,925,031.

 

Fanini, O., Forgang, S., Kriegshäuser, B., and Yu, L., 2005, Method and apparatus for the use of multi-component induction tool and cross-component measurements for geosteering and formation resistivity data interpretation in horizontal wells: United States Patent 6,900,640.

 

Xiao, J., Kriegshäuser, B., Fanini, O., Yu, L., and Merchant, G., 2005, Method for joint interpretation of multi-array induction and multi-component induction measurements with joint dip angle estimation: United States Patent 6,885,947.

 

Mollison, R., Schön, J., Fanini, O., Kriegshäuser, B., and Pavlovic, M., 2004, Water saturation and sand fraction determination from borehole resistivity imaging tool, transverse induction logging and a tensorial water saturation model: United States Patent 6,711,502.

 

Zhang, Z., Yu, L., Tabarovsky, L., and Kriegshäuser, B., 2003, Simultaneous determination of formation angles and anisotropic resistivity using multi-component induction logging data: United States Patent 6,643,589.

 

Kriegshäuser, B., McWilliams, S., Fanini, O., and Yu, L., 2003, Efficient and accurate pseudo-2D inversion scheme for multicomponent induction log data: United States Patent 6,618,676.

 

Yu, L., Kriegshäuser, B., Fanini, O., 2003, Vertical 1-D inversion with thin layers of equal thickness: United States Patent 6,591,194.

 

Kriegshäuser, B., Fanini, O., Gupta, P., and Yu, L., 2002, Method for determination of apparent resistivities of anisotropic reservoirs: United States Patent 6,553,314.

 

Mollison, R., Schön, J., Fanini, O., Kriegshäuser, B., and Pavlovic, M., 2002, Water saturation and sand fraction determination from borehole resistivity imaging tool, transverse induction logging and a tensorial water saturation model: United States Patent 6,493,632.

 

Mollison, R., Fanini, O., Kriegshäuser, B., and Pavlovic, M., 2002, Water saturation and sand fraction determination from borehole resistivity imaging tool, transverse induction logging and a tensorial dual water saturation model: United States Patent 6,470,274.

 

Kriegshäuser, B., Fanini, O., Gupta, P., and Yu, L., 2002, Method for determination of apparent resistivities of anisotropic reservoirs: United States Patent 6,466,872.

 

Chakravarthy, S., Gupta, P., Chunduru, R., Kriegshäuser, B., and Fanini, O., 2000, Conductivity anisotropy estimation method for inversion processing of measurements made by a transverse electromagnetic induction logging instrument: United States Patent 6,044,325.

 

Kriegshäuser, B., Gupta, P., Jericevic, Z., and Fanini, O., 1999, Method for determining the axial position of formation boundaries using measurements made by a transverse electromagnetic induction logging instrument: United States Patent 5,999,884.

 

Gupta, P., Kriegshäuser, B., and Fanini, O., 1999, Conductivity anisotropy estimation method for inversion processing of measurements made by a transverse electromagnetic induction logging instrument: United States Patent 5,999,883.

 

Gupta, P., Kriegshäuser, B., Jericevic, Z., and Fanini, O., 1998, Method for inversion  processing of transverse electromagnetic induction well logging measurements: United States Patent 5,854,991.