Abstract: In an assembly for lowering and expanding a tubular element in a borehole on an expansion string, at least part of the weight of the tubular element is transmitted to the expansion string via an internal upset and a support protruding from an outer surface of the expansion string below the internal upset.

Abstract: The functionality of a downhole tubular expansion tool is switched by: -providing the unexpanded tubular with an oversized section (7) having a larger internal width than other (non-oversized) sections of the unexpanded tubular (6);-providing the expansion tool with a control sub (1) comprising a trigger assembly (2) that is pushed outward within the oversized section and thereby switches the functionality of the tool, for example by contracting or expanding a collapsible expansion cone and/or opening a valve.

Abstract: In an assembly for lowering and expanding a tubular element in a borehole on an expansion string, at least part of the weight of the tubular element is transmitted to the expansion string via an internal upset and support means protruding from an outer surface of the expansion string below the internal upset.

Abstract: A method for underdisplacing fracture proppant in a well bore. The method can include providing a set retainer having a passage configured to receive a wiper plug. The method may also include installing the set retainer in the well bore and injecting a proppant-laden fluid into the well bore, through the passage of the set retainer and through a perforation to create the fracture. The method may include providing a wiper plug configured to be received in the passage of the set retainer. The method may also include inserting the wiper plug into the well bore and allowing the wiper plug to wipe a portion of the proppant-laden fluid past the set retainer and into the fracture. Additionally, the method may include allowing the set retainer to receive the wiper plug.

Abstract: A method for underdisplacing fracture proppant in a well bore. The method can include providing a set retainer having a passage configured to receive a wiper plug. The method may also include installing the set retainer in the well bore and injecting a proppant-laden fluid into the well bore, through the passage of the set retainer and through a perforation to create the fracture. The method may include providing a wiper plug configured to be received in the passage of the set retainer. The method may also include inserting the wiper plug into the well bore and allowing the wiper plug to wipe a portion of the proppant-laden fluid past the set retainer and into the fracture. Additionally, the method may include allowing the set retainer to receive the wiper plug.

Abstract: An expandable tubular liner includes a first tube, a second tube, a mechanical coupling for coupling the first and second tubes, and an insert coupled to the mechanical coupling. The insert is capable of forming a metallurgical bond with at least one of the tubes when energy is injected into the insert.

Abstract: A radial expansion system.

Abstract: A tubular sleeve overlaps the threaded connection between a pair of adjacent tubular members that are to receive an expansion device for radial expansion and plastic deformation of the threaded tubular connection.

Abstract: An apparatus for radially expanding and plastically deforming a tubular member includes a support member with a fluid passage. A mandrel is movably coupled to the support member and includes an expansion cone operable to radially expand and plastically deform the tubular member when moved relative to the tubular member. A pressure chamber is positioned between the support member and the mandrel, and the pressure chamber is fluidicly coupled to the fluid passage. A releasable support is coupled to the support member and operable to selectively couple the support member to the tubular member.

Abstract: A tubular sleeve is coupled to and overlaps the threaded connection between a pair of adjacent tubular members.

Abstract: An apparatus for radially expanding and plastically deforming a tubular member. In some embodiments, the apparatus includes a tubular support, sliding sleeve, rupture disc, and expansion cone. The tubular support has a first internal passage, wherein the sliding sleeve is disposed, and a flow passage, wherein the rupture disc is seated. The sliding sleeve has a second internal passage and is moveable by fluid pressure between first and second positions. In the first position, the second internal passage is fluidicly coupled with a first annulus surrounding the tubular support. In the second position, the second internal passage is fluidicly isolated from the first annulus. The rupture disc fluidicly isolates the first internal passage from a second annulus surrounding the tubular support and is adapted to rupture, whereby the first internal passage and the second annulus are fluidicly coupled. The expansion cone is disposed in the second annulus and moveable under pressure from fluid in the second annulus.

Abstract: A tubular sleeve overlaps the threaded connection between a pair of adjacent tubular members that are to receive an expansion device for radial expansion and plastic deformation of the threaded tubular connection.

Abstract: An apparatus and method for radially expanding and plastically deforming a tubular member. The apparatus includes a support member, an expansion device coupled to the support member and at least one of a cutting device coupled to the support member, an actuator coupled to the support member, a sealing assembly, or a packer assembly coupled to the support member. The apparatus may further include a gripping device for coupling the tubular member to the support member. The expansion device may be used for radially expanding and plastically deforming the tubular member which may be coupled to the support member. The cutting device may be used for cutting the tubular member. The actuator may be used for displacing the expansion device relative to the support member. The sealing assembly may be used for sealing an annulus defined between the support member and the tubular member.

Abstract: Methods and apparatus for radially expanding a tubular member.

Abstract: An apparatus for radially expanding and plastically deforming a tubular member.

Abstract: A tubular sleeve is coupled to and overlaps the threaded connection between a pair of adjacent tubular members.

Abstract: An apparatus for radially expanding and plastically deforming a tubular member includes a support member with a fluid passage. A mandrel is movably coupled to the support member and includes an expansion cone operable to radially expand and plastically deform the tubular member when moved relative to the tubular member. A pressure chamber is positioned between the support member and the mandrel, and the pressure chamber is fluidicly coupled to the fluid passage. A releasable support is coupled to the support member and operable to selectively couple the support member to the tubular member.

Abstract: A mono-diameter wellbore casing is formed by radially expanding a first tubular liner off of a mandrel into contact with a second tubular liner. The first and second tubular liners are positioned within the wellbore in an overlapping relationship. The overlapping portions of the tubular liners include thin wall portions with compressible annular members that are expanded into contact with each other.

Abstract: A method of expansion.

Abstract: A tubular member is expanded by pressurizing an interior region within the tubular member.