Patents by Inventor Mike Dalgarno

Mike Dalgarno has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8677841
    Abstract: An apparatus for carrying well samplers including a tubular carrier housing, a crossover sub connected to the housing, and a pair of adjacent single phase samplers set off from the tool centerline axis thereby providing an offset interspatial through-bore region to support wireline operations. The pair of single phase samplers are removably disposed between upper and lower positioning inserts. The inserts have recessed sampler seats and through-bores that align with the interspatial through-bore region. A conduit fluidly connects one pair of recessed seats to the tool exterior so as to port annulus pressure to the pressure-activated triggering mechanisms of the samplers. A rupture disk housing is removably connected to the triggering conduit from an exterior recess in the crossover sub. The other positioning insert includes a clamping mechanism to removably secure the samplers within the carrier. Multiple assemblies of crossover subs and carrier housing can be connected in tandem.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: March 25, 2014
    Assignee: Proserv UK Limited
    Inventors: Craig Baxter, Shankar Bhukya, Murray Stuart, Mike Dalgarno, Philip Hunt
  • Publication number: 20110314936
    Abstract: An apparatus for carrying well samplers including a tubular carrier housing, a crossover sub connected to the housing, and a pair of adjacent single phase samplers set off from the tool centerline axis thereby providing an offset interspatial through-bore region to support wireline operations. The pair of single phase samplers are removably disposed between upper and lower positioning inserts. The inserts have recessed sampler seats and through-bores that align with the interspatial through-bore region. A conduit fluidly connects one pair of recessed seats to the tool exterior so as to port annulus pressure to the pressure-activated triggering mechanisms of the samplers. A rupture disk housing is removably connected to the triggering conduit from an exterior recess in the crossover sub. The other positioning insert includes a clamping mechanism to removably secure the samplers within the carrier. Multiple assemblies of crossover subs and carrier housing can be connected in tandem.
    Type: Application
    Filed: June 28, 2011
    Publication date: December 29, 2011
    Inventors: CRAIG BAXTER, Shankar Bhukya, Murray Stuart, Mike Dalgarno, Philip Hunt