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US 12,753,659 B2Granted
Vibrational damper for elevated temperatures
AssigneeBaker Hughes Oilfield Operations LLC
InventorRocco DiFoggio
Life of this patent
Estimating the term…
Abstract
A work string and method of absorbing a vibration at the work string. The work string includes an outer member, an inertial mass disposed within the outer member and a damping element between the outer member and the inertial mass. The damping element includes a liquid having a viscosity that increases with increasing temperature. The damping element absorbs the vibration being transferred from the outer member to the inertial mass.
Claims22
A work string, comprising:
- an outer member;
- an inner tubular;
- an inertial mass disposed within the outer member and configured to move around the inner tubular;
- and
- a damping element between the outer member and the inertial mass, the damping element including a liquid having a viscosity that increases with increasing temperature.
2 more elements
A method of absorbing a vibration at a work string, comprising:
- disposing a damping element between an outer member and an inertial mass disposed within the outer member, wherein the damping element includes a liquid having a viscosity that increases with increasing temperature;
- and
- absorbing the vibration being transferred from the outer member to the inertial mass via the damping element;
- wherein the inertial mass is configured to move around an inner tubular of the work string.
1 more element
A work string, comprising:
- an outer member;
- an inertial mass disposed within the outer member;
- a damping element between the outer member and the inertial mass, the damping element including a liquid having a viscosity that increases with increasing temperature;
- and
- wherein the damping element further comprises a matrix material having open-cell pores, wherein the liquid partially fills the open-cell pores.
2 more elements
Dependencies are inferred from the claim text.