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US 10,094,196 B2Granted
Rotating control device
AssigneeFa Solutions AS
InventorKetil Faugstad
Life of this patent
Estimating the term…
Abstract
An RCD includes a housing, a seal assembly package, and a seal tube assembly. The seal tube assembly includes a seal tube, a seal, a first bearing, and a second bearing. The seal is coupled between the first and second bearings. The first bearing includes a flow path between the interior of the seal tube and the annular space between the seal and the seal tube. The SAP includes an SAP outer body positioned within the housing and fluidly sealed thereto. The RCD may include a running tool coupled to the SAP having one or more grippers for engaging a tool string passing through the RCD.
Claims10
A seal tube assembly comprising:
- a seal tube, the seal tube having no fluid paths through the wall thereof;
- a seal, the seal being tubular;
- a first bearing mechanically coupled directly between the seal tube and a first end of the seal;
- and
- a second bearing mechanically coupled directly between the seal tube and a second end of the seal;
- the first bearing, the second bearing, the seal tube, and the seal defining an annular space about the seal, wherein fluid pressure within the annular space presses the seal radially inward.
3 more elements
Dependencies are inferred from the claim text.