Abstract: A packer ring and activation system for use in a pipeline pressure isolation system utilizing a packer, a packer support ring, a primary wedge, and a plurality of secondary wedges for use with a pipe engagement, sealing and testing system.

Abstract: A packer ring and activation system for use in a pipeline pressure isolation system utilizing a packer, a packer support ring, a primary wedge, and a plurality of secondary wedges for use with a pipe engagement, sealing and testing system.

Abstract: A method for recording seismic data in deep water. A plurality of seismic data recorders are attached to a wire stored on a seismic vessel. A free end of the wire is deployed into the water, and the recorders are attached at selected positions along the wire. The wire and recorders are lowered into the water as the vessel moves to control the recorder deployment. The wire controls recorder location and establishes the recorder spacing interval. After the recorders are operated to record seismic data, the wire and attached recorders can be retrieved to the water surface. The recorders can be detached from the wire to facilitate storage and data retrieval from each recorder.