Downhole Drilling Optimization Collar with Fiber Optics

摘要

A drilling optimization collar for use proximate a drilling tool within a wellbore includes a fiber optic sensor filament that is sized and configured to fit within a groove formed within the drilling optimization collar. The drilling optimization collar may be a pipe segment that is sized and configured to be installed in a drill string proximate the drilling tool, and may have a plurality of sensor elements. All or a portion of the sensor elements may be formed by discrete segments of the sensor filament, and as such, the sensor filament includes sensor elements that are configured to sense a condition of the wellbore and a load on the drilling optimization collar.

主权项

1. A drilling optimization collar for use proximate a drilling tool within a wellbore, the drilling optimization collar comprising:
a pipe segment installed in a drill string proximate the drilling tool; a groove formed within an external wall of the pipe segment; and a fiber optic sensor filament within the groove and having a plurality of sensor elements, wherein each of the plurality of sensor elements comprises a segment of the sensor filament, and wherein pairs of sensor elements are placed on opposite sides of the pipe segment; wherein the sensor filament is configured to sense a condition of the wellbore and a load on the drilling optimization collar.