Rotating control device with integrated cooling for sealed bearings

AU2022439803B2Pending Publication Date: 2026-07-23WEATHERFORD TECHNOLOGY HOLDINGS LLC
View PDF 4 Cites 0 Cited by

Patent Information

Authority / Receiving Office
AU · AU
Patent Type
Applications
Current Assignee / Owner
WEATHERFORD TECHNOLOGY HOLDINGS LLC
Filing Date
2022-12-13
Publication Date
2026-07-23

AI Technical Summary

Technical Problem

Existing rotating control devices for subterranean wells face challenges in effectively sealing and lubricating bearings, leading to potential contamination and inefficiencies due to heat generation and lack of integrated cooling solutions.

Method used

A rotating control device with integrated cooling and lubrication system, featuring a bearing assembly with heat exchangers, fluid passages, and a pump driven by the inner barrel rotation, along with a latch assembly for securing the bearing assembly, which includes a heat exchanger to transfer heat externally.

Benefits of technology

The system maintains sealed bearings in a lubricated environment, effectively reducing temperature and preventing contamination by transferring heat externally, ensuring reliable operation under high pressure conditions.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 00000001_0000
    Figure 00000001_0000
  • Figure 00000018_0000
    Figure 00000018_0000
  • Figure 00000019_0000
    Figure 00000019_0000
Patent Text Reader

Abstract

A pressure control device can include an outer housing, a bearing assembly with bearings to rotatably support an inner barrel in the outer housing, a heat exchanger, and fluid passages that communicate between the bearings and the heat exchanger, and a latch assembly configured to releasably secure the bearing assembly in the outer housing. The latch assembly can include a heat exchanger configured to exchange heat with the bearing assembly heat exchanger. Another pressure control device can include a bearing assembly with bearings to rotatably support an inner barrel in the outer housing, fluid passages that communicate with space adjacent the bearings, a pump in communication with the fluid passages, and a gear train connected between the pump and a ring gear secured to the inner barrel.
Need to check novelty before this filing date? Find Prior Art