Patents Assigned to Paulsson Geophysical Services, Inc.
  • Patent number: 6923291
    Abstract: One embodiment of the invention provides for an apparatus for detecting geophysical energy. The apparatus includes a receiver configured to receive geophysical energy and to convert the geophysical energy into a signal. The apparatus further includes a signal transport device configured to accept the signal and relay the signal to a remote location. The apparatus also includes a fluid conduit configured to contain a pressurized fluid, a production tubing, and an expansible section disposed inline in the fluid conduit. The expansible section is positioned between the production tubing and the receiver, and is configured to expand in response to an increase of fluid pressure within said conduit. When expanded, the expansible section presses against the production tubing and the receiver and thereby causes the receiver to be moved from a first position to a second position.
    Type: Grant
    Filed: February 24, 2003
    Date of Patent: August 2, 2005
    Assignee: Paulsson Geophysical Services, Inc.
    Inventor: Björn N. P. Paulsson
  • Patent number: 6568501
    Abstract: A clamped receiver array using tubing conveyed packer elements is disclosed and described. The receiver array can be used for borehole seismology as well as marine bottom surface seismology. The receiver array has a plurality of receivers connected together by a signal cable. The apparatus is further provided with a fluid conduit running essentially parallel to the signal cable. The fluid conduit has a plurality of receiver deployment sections which are located proximate to respective receivers. The receiver deployment sections are responsive to an increase in pressure within the fluid conduit, causing the receiver deployment sections to operate to press the receiver against the inside of a wellbore or to a marine bottom surface. In one example the receiver deployment section uses pistons disposed in openings in the fluid conduit to push the receivers away from the conduit as pressure in the conduit is increased.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: May 27, 2003
    Assignee: Paulsson Geophysical Services, Inc.
    Inventor: Björn N. P. Paulsson
  • Patent number: 5962819
    Abstract: A clamped receiver array using coiled tubing conveyed packer elements is disclosed and described. The receiver array is adapted to be received within a borehole and is therefore particularly useful for borehole seismology. The receiver array has a plurality of receivers connected together by a signal cable. The receivers include sensors which can be 3-component geophones. The apparatus is further provided with a fluid conduit running essentially parallel to the signal cable, the fluid conduit having expansible sections located adjacent to the receivers. The expansible sections expand in response to an increase of fluid pressure within the fluid conduit, contacting the associated receiver and thereby pushing the receiver into a coupled or clamped contact with the casing in the wellbore.
    Type: Grant
    Filed: March 11, 1998
    Date of Patent: October 5, 1999
    Assignee: Paulsson Geophysical Services, Inc.
    Inventor: Bjorn N. P. Paulsson