MISALIGNMENT MITIGATION IN A ROTATING CONTROL DEVICE

MISALIGNMENT MITIGATION IN A ROTATING CONTROL DEVICE

An apparatus for the correction of misalignment of a piece of oilfield equipment within a rotating control device (RCD) 10, comprise a misalignment correction device, wherein part of the piece of oilfield equipment is located within the misalignment correction device. A spherical shoulder is on a fi...

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Hauptverfasser: HARRISON, Andrew, CHAMBERS, James, W, WAGONER, Danny, W
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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creator HARRISON, Andrew
CHAMBERS, James, W
WAGONER, Danny, W
description An apparatus for the correction of misalignment of a piece of oilfield equipment within a rotating control device (RCD) 10, comprise a misalignment correction device, wherein part of the piece of oilfield equipment is located within the misalignment correction device. A spherical shoulder is on a first surface of a misalignment correction device, and a socket is defined on a second surface of the misalignment correction device. The socket is configured to engage the spherical shoulder. The apparatus further includes a sealing element (140) having an internal diameter (144) and an external diameter (146), wherein the internal diameter (144) is configured to seal against the piece of oilfield equipment (40). The apparatus also includes a pressure reduction system (120), which comprises a piston assembly (129) configured to reduce a wellbore pressure (P2) to a reduced pressure experienced by the external diameter (146) of the sealing element (140).
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subjects EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
title MISALIGNMENT MITIGATION IN A ROTATING CONTROL DEVICE
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