Patent
A method and apparatus for patching a well by hydroforming a tubular metal patch, and a patch for this purpose
TLDR
In this article, a method of patching a well or a pipe by hydroforming a tubular metal patch is described, in which a tool (1) is inserted inside the patch so that the packers (3) are in register with the end portions (5) of the patch; inserting the assembly constituted by the tool and the patch (4) axially inside the well or the pipe, and positioning the assembly inregister with the zone for patching.Abstract:
A method of patching a well or a pipe by hydroforming a tubular metal patch, the method comprising the following steps: - inserting inside the patch (4) a tool (1) provided with a pair of inflatable packers (3) that are axially spaced apart from each other by a distance that is substantially equal to the length of the patch; - positioning the tool (1) inside the patch so that the packers (3) are in register with the end portions (5) of the patch; - inserting the assembly constituted by the tool (1) and the patch (4) axially inside the well or the pipe, and positioning the assembly in register with the zone for patching; - inflating the packers (3) to high pressure, sufficient for radially expanding the end portions (5) of the patch and pressing them in leaktight manner against the wall of the well or the pipe; and - deflating the packers (3) and withdrawing the tool (D - The method is applicable to the oil industry.read more
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Patent
Expandable casing patch
TL;DR: In this article, a system including a housing having an upper end in fluid communication with a source of pressurized fluid and a lower end releasably coupled to an expandable tubular is described.
Patent
Non-ballistic tubular perforating system and method
TL;DR: In this paper, a non-ballistic tubular perforating system is described, which includes a tubular having a wall with perforations therethrough, and plugs positioned within the perforation that are configured to dissolve in response to exposure to a first environment thereby creative of a second environment that can dissolve or increase porosity of cement.
Patent
Method and device for sealing a well by means of a core plug, plug for implementing the method, and extractor tool designed to remove it
TL;DR: In this article, a plug is inflated by injecting a high-pressure liquid into it via its mouth so that a tubular wall part of the plug expands radially beyond its elastic limit and presses firmly and tightly against the wall of the well by a crimping effect.
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Hydraulic fracturing process and corresponding equipment
TL;DR: In this paper, a hydraulic fracturing equipment of the rock of a well (A) consisting of a conduit (1) provided along its external face with at least one pair of expandable metallic tubular sleeves (2) fixedly, connected to the conduit, is described.
Patent
Cement masking system and method thereof
TL;DR: In this paper, the at least one swellable member configured to at least partially displace cement radially of the tubular during radial expansion of the at most one sinkable member was defined.
References
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Patent
Expandable wellbore junction
TL;DR: In this paper, the authors proposed a method of interconnecting first and second wellbores, which comprises the steps of: forming a radially enlarged cavity (20) in the first wellbore (12) below casing (14) lining the firstWellbore(20); positioning a well-bore connector (22) within the cavity.
Patent
Method of lining a pipe
TL;DR: In this article, a tubular fibrous felt is immersed in the resin to form a carrier for the resin, and the resin is cured to form the hard, rigid lining pipe with the felt embedded therein.
Patent
Expandable liner and associated methods of regulating fluid flow in a well
TL;DR: In this paper, the authors describe a method of regulating flow through a first tubular structure in a well providing flow control by use of an expandable second tubular Structure inserted into the first tube structure and deformed therein.
Patent
Packer for sealing pipe leaks
TL;DR: In this article, a packer for internal sealing of pipe leaks is made up of easily assembled and disassembled components, where a pair of casings are covered with inflatable skins and have a center ring between them and an end skid member at each end of the mechanism.
Patent
Method of obtaining a leakproof connection between a tube and a sleeve
TL;DR: In this paper, a method of obtaining a leakproof connection between a metallic tube having a leak and a metallic sleeve extending over the leak, including expanding the sleeve being formed of a material having given strength values against an inner wall surface of the tube being formed with strength values greater than the given values, is presented.