Patent Yard Sign in
Expired Canadian patentCanada

Method and system for seismic exploration employing a dual-dipole hydrophone streamer

CA 1310102 C · Owner: Rice, James A. · Inventors: Rice, James A.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

A seismic exploration method and system employing a streamer that houses at least one pair of orthogonally mounted hydrophones. The streamer may be operated downhole in a well or may be towed in a body of water by a marine vessel. In the downhole embodiment, detection of seismic signals of interest with suppression of noise due to tube waves and (dipole and monopole) modal waves propagating in and along the well is permitted, and without the need for locking the seismic detectors to the wall of the well. In the marine embodiment selective detection of waves incident from any incidence direction of interest (including the horizontal and vertical directions) is permitted. In all embodiments …

Read the whole patent

Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted November 10, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 10, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 7, 1988
GrantedNovember 10, 1992
Term endedNovember 10, 2009
Patent numberCA 1310102 C
Classification (IPC)G01V1/40 +1 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedApril 7, 1988Patent grantedNov 10, 1992Term endedNov 10, 2009

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.