A remote-controlled tubing sleeve window for access to a lateral wellbore of a multilateral well. The tubing sleeve window has a tubular body portion that defines a side port that is sufficiently-sized to allow a well tool to pass. A sleeve is received in the tubing body portion such that it can reciprocate...http://www.google.fr/patents/US6095248?utm_source=gb-gplus-shareBrevet US6095248 - Method and apparatus for remote control of a tubing exit sleeve
Method and apparatus for remote control of a tubing exit sleeve
