Assembly and method for expanding a tubular element

Assembly and method for expanding a tubular element

In an expansion assembly (1), an expandable bottom plug (10) is arranged below a primary expander (6) for expanding a tubular element (2). The expandable bottom plug (10) includes an expandable tubular clad element with a sealing section for sealing the expanded clad element to a lower portion of th...

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Hauptverfasser: Djurre Hans Zijsling, Walter Stam, Antonius Leonardus Maria Wubben
Format: Patent
Sprache:eng
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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 Djurre Hans Zijsling
Walter Stam
Antonius Leonardus Maria Wubben
description In an expansion assembly (1), an expandable bottom plug (10) is arranged below a primary expander (6) for expanding a tubular element (2). The expandable bottom plug (10) includes an expandable tubular clad element with a sealing section for sealing the expanded clad element to a lower portion of the expanded tubular element (2), and an anchoring section for anchoring the expanded clad element to the lower portion of the expanded tubular element. A secondary expander (22) is provided for radially expanding the clad element in the lower portion of the expanded tubular element by axial movement of the secondary expander through the clad element.
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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 Assembly and method for expanding a tubular element
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