DOWNHOLE ASSEMBLY TO MITIGATE HIGH FREQUENCY TORSIONAL OSCILLATION, AND OSCILLATION MITIGATION TOOL SUITABLE FOR USE IN A DOWNHOLE ASSEMBLY

DOWNHOLE ASSEMBLY TO MITIGATE HIGH FREQUENCY TORSIONAL OSCILLATION, AND OSCILLATION MITIGATION TOOL SUITABLE FOR USE IN A DOWNHOLE ASSEMBLY

A downhole assembly to mitigate high frequency torsional oscillation, in particular the high frequency torsional oscillation which can occur in a drilling operation for geothermal energy or for oil and gas. The downhole assembly has a rotary steerable tool and a high frequency torsional oscillation...

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Hauptverfasser: CROWLEY, Daniel Brendan, SEDGEMAN, Robert Donald John
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 CROWLEY, Daniel Brendan
SEDGEMAN, Robert Donald John
description A downhole assembly to mitigate high frequency torsional oscillation, in particular the high frequency torsional oscillation which can occur in a drilling operation for geothermal energy or for oil and gas. The downhole assembly has a rotary steerable tool and a high frequency torsional oscillation mitigation tool, the high frequency torsional oscillation mitigation tool having a one-way coupling, the high frequency torsional oscillation mitigation tool being located above the rotary steerable tool. Also relates to an oscillation mitigation tool suitable for use in a downhole assembly.
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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 DOWNHOLE ASSEMBLY TO MITIGATE HIGH FREQUENCY TORSIONAL OSCILLATION, AND OSCILLATION MITIGATION TOOL SUITABLE FOR USE IN A DOWNHOLE ASSEMBLY
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