Interchangeable drillable tool
AssigneeHalliburton Energy Services, Inc.
InventorsJesse C. Porter, William E. Standridge, Adam K. Neer, Tracy Martin, Kevin R. Manke
Life of this patent
Estimating the term…
Abstract
A downhole tool for use in a well has a mandrel with an expandable sealing element disposed thereabout. The mandrel has a head portion threadedly connected thereto. A shoulder in the head portion and an upper end of the mandrel define an annular space. A sleeve with a bore therethrough may be positioned in the annular space. The head portion may be removed and a solid plug installed so that it fits within the annular space and so that the downhole tool will act as a bridge plug. The downhole tool has slip rings made up of a plurality of individual slip segments that are adhesively bonded to one another at the sides thereof.
Claims27
A downhole tool for use in a well comprising:
- a mandrel;
- an expandable sealing element disposed about the mandrel for engaging the well in a set position of the tool;
- a first slip ring disposed about the mandrel and radially expandable outwardly from an unset to a set position in which the slip ring grippingly engages the well, the first slip ring comprising a plurality of slip segments having first and second side surfaces, each of the plurality of slip segments being bonded with a bonding material to an adjacent slip segment at the first and second side surfaces thereof;
- and
- a second slip ring disposed about the mandrel and expandable radially outwardly from an unset to a set position in which the second slip ring grippingly engages the well, the second slip ring comprising a plurality of slip segments having first and second side surfaces, each of the plurality of slip segments being bonded with the bonding material to adjacent slip segments at the first and second side surfaces thereof.
A downhole tool for use in a well comprising:
- a composite mandrel comprising a plurality of layers of fiberglass filaments bonded to one another with an epoxy resin;
- a packer element disposed about the mandrel;
- first and second slip rings disposed about the mandrel and positioned above and below the packer element, respectively;
- a head portion threadedly and removably connected to the mandrel;
- and
- a spacer ring disposed about the mandrel for axially retaining the first slip ring, wherein a lower end of the head portion provides an abutment for the spacer ring.
A downhole tool for use in a well comprising:
- a mandrel comprised of a composite material;
- a single packer element disposed about the mandrel, the packer element being expandable from an unset position to a set position in which the packer element engages the well;
- a first extrusion limiter adjacent a first end of the packer element;
- and
- a second extrusion limiter adjacent a second end of the packer element, the first and second extrusion limiters comprising a plurality of layers of fiberglass and a plurality of rubber layers, wherein each fiberglass layer has a rubber layer adjacent thereto.
A downhole tool for use in a well comprising:
- a composite mandrel;
- a packer element disposed about the mandrel and expandable from an unset to a set position to sealingly engage the well;
- a first slip ring comprised of individual segments bonded together at side surfaces thereof;
- a second slip ring comprised of individual segments bonded together at side surfaces thereof, the first and second slip rings disposed about the mandrel and radially expandable from an unset to a set position to grippingly engage the well;
- and
- a head portion threadedly connected to the mandrel, the mandrel having an upper end;
- wherein the head portion and the upper end of the mandrel define an annular space therebetween.
Dependencies are inferred from the claim text.