Schlumberger Technology Corporation

Saltel Industries

Robin Laupie

Samuel Roselier

Romain Neveu

Dinesh R Patel

Jean-Louis Saltel

Gwenael Tanguy

Samuel Mouget

Louis Bazin

Nicolas Saltel

A technique facilitates improved actuation and use of packers which may be disposed along a well string placed in a borehole, e.g. a wellbore. Each packer may be constructed with a tubing, sometimes referred to as a mandrel, and an expandable metal bladder secured around the tubing via connections. The packer may further comprise a sealing element mounted about the expandable metal bladder. The packer also comprises couplings, e.g. a first coupling and a second coupling, connected at opposite ends of the tubing. The couplings each having a hole therethrough to provide a feedthrough running from an exterior to an interior of the tubing at both ends of the tubing.

System and methodology for bypassing through an expandable metal packer

A technique facilitates improved actuation and use of packers disposed along a well string and placed in a borehole, e.g. a wellbore. A plurality of packers may be disposed along a base pipe, e.g. a production tubing. Each packer has an expandable sleeve which may be expanded into a fully expanded configuration establishing a secure, sealing engagement with a surrounding wall. e.g. a surrounding wellbore wall. Additionally, a hydrolock prevention valve system comprises a valve which may be actuated to allow or block the flow of fluid from an annular region or regions between the packers.

Multiple expandable metal packers with hydrolock prevention

A technique facilitates improved anchoring of expandable well tools along a wellbore or other type of borehole. According to an embodiment, a well tool is sized for placement along a well string. The well tool comprises a tubing and an expandable tubular coupled to the tubing. The expandable tubular is plastically deformable in a radially outward direction when sufficient pressure is applied to an interior of the expandable tubular. The well tool also comprises at least one anchoring ring disposed circumferentially about the expandable tubular. The anchoring ring is constructed with at least one weak point which breaks during expansion of the expandable tubular. Breakage at this weak point enables movement of the anchoring ring in a radially outward direction without elongation of the anchoring ring.

System and methodology for utilizing anchoring element with expandable tubular

The invention concerns a radially expandable metal tubular element having on its outer surface a series of spaced apart annular sealing modules. This element is noteworthy in that each sealing module comprises two annular metal abutments between which there are inserted an annular seal and two anti-extrusion rings, the seal being positioned between the two anti-extrusion rings and the two metal abutments being secured against the outer surface of the said tubular element, in that the two anti-extrusion rings are made in elastically and plastically deformable material and are in one or two parts, and in that the two anti-extrusion rings and/or the seal comprise at least two opposite facing bevelled surfaces capable of sliding relative to one another under the effect of axial movement of the said seal so as to cause outward radial displacement of one of the anti-extrusion rings or at least one of the two parts thereof.

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Bruz, France

Robin Laupie