Internal inspection device for determining a length of a tubular good
AssigneeVallourec Oil and Gas France
InventorsLucas Kling E Silva, Sébastien Petit, Alastair Brodie, Nicolas Wilbert, Nestor Medeiros
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Abstract
This internal inspection device is for determining a length and inner diameter of a tubular good. The internal inspection device includes a first positioning sensor, a second positioning sensor spaced axially from the first positioning sensor, a displacement sensor the displacement of the internal inspection device inside the tubular good between two positions sensed by the respective positioning sensors, the internal inspection device further including a electronic arranged to computing the length of the tubular good by adding a distance measured by the displacement sensor and a predetermined length.
Claims16
An internal inspection device for determining a length of a tubular good, the internal inspection device comprising:
- a body having an axis;
- a first positioning sensor;
- a second positioning sensor spaced axially from the first positioning sensor, wherein the first positioning sensor is configured to determine whether the first positioning sensor is located inside the tubular good and the second positioning sensor is configured to determine whether the second positioning sensor is located inside the tubular good;
- a displacement sensor for measuring the displacement of the internal inspection device inside the tubular good along a length of the tubular good between a first position within the tubular good and a second position within the tubular good;
- and
- electronics including circuitry that computes the length of the tubular good by adding a distance measured by the displacement sensor and a predetermined axial length between the first position sensor and the second position sensor.
Dependencies are inferred from the claim text.