The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 22, 1979
Filed:
Feb. 24, 1978
William R Rochelle, Houston, TX (US);
Brown & Root, Inc., Houston, TX (US);
Abstract
The invention relates to methods and apparatus for effecting deep water repair of pipelines especially during a pipelaying operation. A damaged portion of the pipeline is located and is prepared for receiving a pipeline plug member by cutting away the damaged portion leaving a prepared pipeline end section. The pipeline plug member is secured in a submersible repair frame which is lowered from a floating vessel into an operational relationship with the prepared pipeline end section. The plug member is aligned with the pipeline end section and is inserted into the end section. Thereafter, the plug member is sealingly secured in the pipeline end section and the repair frame is removed from its operational relationship with the pipeline. The pipeline is dewatered and the end section is then raised onto a floating vessel. The repair frame, in addition to including means for holding and manipulating the plug member, also has a manually operable control panel manipulating means for controlling operations of the repair frame, and a submersible vehicle docking station to position a submersible vehicle in an operative relationship to the control panel manipulating means. The repair frame is preferably lowered to the bottom of the body of water with a pick up line or a pilot line attached to the plug member.