Halliburton Energy Services, Inc.

Oil States Industries Limited

Joel L Barlow

Jesse Cale Porter

James Barlow

A downhole tool for use in a well is configurable as a frac plug, a caged ball frac plug or a bridge plug. The tool has a mandrel with a threaded neck. The mandrel has an expandable sealing element disposed thereabout. An adapter, which may be selected from multiple configurations of adapters, is threaded to the neck of the mandrel. The adapter may comprise a sleeve, or a cap with one open end and one closed end. The adapter has threads on an outer surface thereof to which a threaded setting mandrel may be attached. The setting mandrel when actuated will move the tool to a set position in the well and once the tool is moved to the set position the threads on the adapter will shear so that the setting mandrel may be retrieved. The tool will thus remain in the hole and will act as either a frac plug, a caged ball frac plug or a bridge plug depending upon the configuration of the selected adapter.

Composite reconfigurable tool

A composite mandrel includes a filament-wound composite tube, and composite material molded over the filament-wound composite tube. For example, the composite material includes chopped fibers and a matrix of thermoset resin. The chopped fibers are arranged in layers upon the filament-wound composite tube, and the chopped fibers in each of the layers are randomly oriented along first and second orthogonal directions in each of the layers. The composite material includes at least one sheet of the composite material wound over the filament-wound tube, and at least one strip of the composite material wound over the sheet of the composite material and forming a head on the composite mandrel. An internal cavity of the filament-wound composite tube may provide a lumen for the composite mandrel. The internal cavity may be threaded to receive a removable bridge plug.

Molded composite mandrel for a downhole zonal isolation tool

Method of making a molded composite mandrel

A downhole tool has a mandrel with slip assemblies positioned thereon above and below a packer element. The slip assemblies are positioned in a manner to anchor the downhole tool in the well. The slip assemblies include a slip ring which has a plurality of slip segments. Each slip segment has inserts disposed in cavities therein. The cavities are oriented such that the longitudinal central axis of each cavity is parallel to the longitudinal central axis of each of the other cavities in the slip segment.

Slip segments for downhole tool

A downhole tool has a mandrel and an expandable packer element for sealingly engaging the well. A slip assembly is positioned on the mandrel and will anchor the downhole tool in the well. The slip assembly may include a slip ring that moves from an unset to a set position. A retaining ring is disposed about the slip ring and will hold the slip ring in the unset position until sufficient force is applied to break the retaining ring. The retaining ring may comprise a retaining band with a dampener to suppress the spring effect experienced by the retaining band when it breaks upon the application of force.

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Oologah, OK, United States of America

Joel L Barlow