Modular resistivity sensor for downhole measurement while drilling
AssigneeWell Resolutions Technology
InventorsTsili Wang, Borislav J. Tchakarov
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Abstract
A resistivity-measuring sensor disposable within a drillstring includes a sensor body having a longitudinal axis, wherein the sensor body is separable from and disposable in the drillstring at a radially offset distance from the longitudinal axis of the drillstring. The sensor further includes a transmitting antenna disposed along a length of the sensor body, a receiving antenna disposed along a length of the sensor body, and an electronics section contained within the sensor body for generating and receiving signals to and from the transmitting and receiving antennas.
Claims20
A resistivity-measuring sensor disposable within a tool body, the sensor comprising:
- a sensor body having a longitudinal axis,
- wherein the sensor body is separable from and at least partially disposable within a tool body;
- a transmitting antenna disposed along a length of the sensor body;
- a receiving antenna disposed along a length of the sensor body;
- and
- an electronics section configured to receive signals from the transmitting antenna.
A resistivity sensor comprising:
- at least one transmitting antenna;
- at least one receiving antenna;
- a calibrating antenna located longitudinally between the at least one receiving antenna and an electronics section contained within a body of the resistivity sensor;
- wherein the sensor is configured to be disposed within and separable from a tool body.
Dependencies are inferred from the claim text.