WELLBORE ISOLATION METHOD WITH RUNNING TOOL FOR RECESS MOUNTED ADAPTIVE SEAT SUPPORT FOR AN OBJECT FOR SEQUENTIAL TREATMENT OF ZONE SECTIONS WITH AND WITHOUT MILLING

WELLBORE ISOLATION METHOD WITH RUNNING TOOL FOR RECESS MOUNTED ADAPTIVE SEAT SUPPORT FOR AN OBJECT FOR SEQUENTIAL TREATMENT OF ZONE SECTIONS WITH AND WITHOUT MILLING

A coiled adaptive seat (10) is held to a smaller diameter for delivery with a tool (40) that can feature a locating lug (42) for desired alignment of the seat with an intended groove (16) in the inner wall of a tubular. The release tool retracts a cover (48) from the seat allowing its diameter to in...

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1. Verfasser: Crow, Stephen L
Format: Patent
Sprache:eng ; fre ; ger
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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 Crow, Stephen L
description A coiled adaptive seat (10) is held to a smaller diameter for delivery with a tool (40) that can feature a locating lug (42) for desired alignment of the seat with an intended groove (16) in the inner wall of a tubular. The release tool retracts a cover (48) from the seat allowing its diameter to increase as it enters a groove. Alternatively, the adaptive seat is released near the groove and pushed axially in the string to the groove for fixation. Once in the groove the inside diameter of the string is a support for a blocking object so that sequential treatment of parts of a zone can be accomplished. The blocking object is removed with pressure, dissolving, milling or disintegration leaving a narrow ledge in the tubular bore from the seat that can simply be left in place or milled as well. An E4#10 from Baker Hughes is modified for adaptive seat delivery.
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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 WELLBORE ISOLATION METHOD WITH RUNNING TOOL FOR RECESS MOUNTED ADAPTIVE SEAT SUPPORT FOR AN OBJECT FOR SEQUENTIAL TREATMENT OF ZONE SECTIONS WITH AND WITHOUT MILLING
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