Schlumberger Technology Corporation

Sethuraj Arumugam

Kean Wee Cheah

Raju Ekambaram

Pradeep Mahadevan

David Milton Eslinger

Alejandro Camacho Cardenas

Benoit Deville

Teng Fei Wang

Maksim Radov

Tengfei Wang

Jaiprakash Natarajan

Ruslan Alexandrovich Bobkov

Kim Hoo Goh

Anti-rotation bearing assemblies for electric submersible pumps are provided. An electric submersible pump includes a plurality of centrifugal pump stages, each stage including a rotating impeller and a stationary diffuser mounted on a shaft coupled to a motor. In use, the motor rotates the shaft, which rotates the impeller within the stationary diffuser. A bearing assembly can include a bearing sleeve disposed about the shaft and a bushing disposed radially between the bearing sleeve and the diffuser. The bearing sleeve rotates with the shaft in operation, and the bushing remains stationary with the diffuser. The bushing can have an external key that is received in a key way or groove in the diffuser to act as an anti-rotation feature. In other variations, the bushing can have an eccentric or oblique profile, which can act as an anti-rotation feature.

Bearings for electric submersible pumps

Systems and methods facilitate pumping of various fluids such as well fluids. An electric submersible pumping system is constructed with an outer housing that contains an integrated pump and motor. The pump may include an impeller disposed within a stator of the motor. The integration of the pump and the motor enables elimination of various components of traditional electric submersible pumping systems to thus provide a simpler and more compact system for pumping fluids.

Electrical submersible pumping systems

Growing community of inventors

Singapore, Singapore

Sethuraj Arumugam