Dry pressure compensated sensor

摘要

A pressure compensated sensor assembly for determining loads near a drill bit may include a body member having an inner diameter and an outer diameter, a sleeve member having an inner diameter and an outer diameter, the sleeve member being coupled to the body member, a first gap having a thickness and a length dimension formed between the body member and the sleeve member, and one or more sensors coupled to the sleeve member. The one or more sensors may measure axial and torsional loads on the sleeve member without measuring parasitic strain induced on the body member.

主权项

1. A pressure compensated sensor assembly for determining loads near a drill bit, the pressure compensated sensor assembly having an interior configured to receive drilling fluid and an exterior, the pressure compensated sensor assembly comprising:
a body member having an inner diameter and an outer diameter; a sleeve member having an inner diameter and an outer diameter, the sleeve member coupled to the body member; a gap defined between the body member and the sleeve member; and one or more sensors coupled to at least one of the sleeve member or the body member on the exterior of the pressure compensated sensor assembly; wherein the one or more sensors are configured to measure at least one of axial or torsional loads on the pressure compensated sensor assembly.