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2019
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Invention
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A system and method for measuring a signal generated by a wellbore transmitter.
Techniques to im... |
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Invention
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A system and method for measuring a signal generated by a wellbore transmitter. Techniques to imp... |
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2017
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Invention
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Wellbore integrity mapping using well-casing electrodes and surface-based electromagnetic fields.... |
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Invention
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System and method of estimating leakage current distribution along long conductor extending into ... |
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2016
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Invention
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Workflow to use borehole completion as antenna for geophysical applications. An electromagnetic g... |
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Invention
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Electromagnetic data acquisition system for removing near surface effects from borehole to surfac... |
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2015
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Invention
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Multi-well surveying system and method for detecting a subsurface feature. A system is provided t... |
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Invention
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Method for mapping the propagation of earth fractures. A method is provided for determining wheth... |
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Invention
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Electromagnetic fields using a conductive casing. A method for efficiently calculating a subsurfa... |
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Invention
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System and method for mapping deep anomalous zones of electrical resistivity. A system and method... |
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2014
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Invention
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System and method for surveying a subsurface of the earth. A first electrode (135; 140; 610, 6I5;... |
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Invention
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Sensor for measuring the electromagnetic fields on land and underwater. An electromagnetic sensin... |
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2013
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Invention
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System and method to induce an electromagnetic field within the earth. A system (50) enables a bo... |
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Invention
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Mapping resistivity distribution within the earth. Resistivity in subsurface earth at locations k... |
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Invention
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Borehole electric field survey with improved discrimination of subsurface features. Errors produc... |
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2012
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Invention
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System and method to measure or generate an electrical field downhole. The invention relates to m... |
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Invention
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Methods, systems and apparatuses for sensing and measuring the electric field within the earth. M... |
