National Oilwell Varco, L.p.

Intelliserv, Inc.

Inteliserv International Holding, Ltd.

Ted Christiansen

Gerald N Minerbo

Jaroslav Belik

Anthony Louis Collins

Darren Wall

Trent Hassell

Craig Newell Thorne

Sterling Beck

Charles Horton

Anthony L Collins

Gerald Minerbo

Craig Thorne

Inductive coupler assemblies for controlling the stray magnetic fields of an inductive coupler to reduce the associated losses are disclosed. This results in reduced attenuation (increased efficiency) of the inductive coupler even in the presence of gaps. The assembly includes an inductive coupler having a housing, a biasing element, and a retention mechanism. The assembly further includes a wire surrounded by a ring of flux channel material disposed in the housing. In some embodiments, the retention mechanism is adapted for removal of the inductive coupler from a pipe joint end. The biasing element may be a circumferential spring disposed between the housing and the pipe joint end. The retention mechanism may be a retention snap ring, press fit, or threaded, to removably couple the housing to the pipe joint end.

Inductive coupler assembly for downhole transmission line

Techniques for wirelessly transferring information to and/or from a drill string component are disclosed herein. In one embodiment, a downhole system includes a drill string component and a tag interrogating device. The drill string component includes a tag configured for wireless communication. The tag interrogating device is configured to traverse the interior of the drill string and wirelessly communicate with the tag.

Systems and methods for using wireless tags with downhole equipment

A system for tracking pipe activity on a rig includes a plurality of pipes, each pipe having an asset ID tag containing a code unique to the pipe. A pipe handling space for assembling and disassembling the pipes contains at least one pipe handling apparatus. A first scanning zone located at a first position in the pipe handling space contains a first reader antenna. A second scanning zone located at a second position in the pipe handling space contains a second reader antenna. At least one reader is provided for scanning the asset ID tags in the pipe handling space through at least one of the first reader antenna and the second reader antenna.

System and method for tracking pipe activity on a rig

Assemblies for packaging a downhole tag. In one embodiment, a tag assembly includes a package configured to contain a wireless tag. The package includes a base, an inner cover, and an outer cover. The base includes a cavity configured to retain an antenna, tag circuitry, and the inner cover disposed over the antenna and tag circuitry.

Downhole tag assembly

Growing community of inventors

Houston, TX, United States of America

Ted Christiansen