Near-Field Sensitivity of Formation and Cement Porosity Measurements With Radial Resolution in a Borehole
AssigneeVisuray Intech Ltd (BVI)
InventorPhilip Teague
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AssigneeVisuray Intech Ltd (BVI)
InventorPhilip Teague
Estimating the term…
A neutron porosity tool having an electronic neutron generator arrangement and a control mechanism used to provide voltage and pulses to an electronic neutron tube is provided, the neutron generator arrangement including: at least one vacuum tube; at least one ion target; at least one radio-frequency cavity; at least one high-voltage generator; at least two neutron detectors; at least one pulser circuit; and at least one control circuit. A method of controlling a neutron porosity tool having an electronic neutron generator arrangement and a control mechanism that provides voltage, and pulses to an electronic neutron tube, the method including at least: controlling a bipolar neutron tube to produce two distinct neutron reactions; using a control circuit to modify the output of a pulser circuit; and using a plurality of neutron detectors to determine formation response offsets.
A neutron porosity tool having an electronic neutron generator arrangement and a control mechanism used to provide voltage and pulses to an electronic neutron tube so that the output of two neutron reaction planes from collocated target planes in a wellbore environment, said neutron generator arrangement comprising:
A method of controlling a neutron porosity tool having an electronic neutron generator arrangement and a control mechanism that provides voltage and pulses to an electronic neutron tube thereby enabling the production of two distinct neutron energies to provide radial discrimination of porosity, said method comprising:
Dependencies are inferred from the claim text.