Patent ID: 8833463
Filing Date: 2014-09-16
Classification: E21B

Abstract:
1. A method for drilling a wellbore from a water bottom supported platform having wellbores with conductor pipes disposed through guide slots in a template on the bottom of a body of water, the method comprising: abandoning a selected wellbore and reclaiming all equipment to the top of the wellbore conductor pipe; cutting the conductor pipe proximate the water bottom; inserting a whipstock system into the cut conductor pipe, the whipstock system including a whipstock pipe configured to engage the top of the cut conductor pipe, the whipstock pipe extending from the cut conductor pipe to an upper end of the whipstock system, a side exiting window in the whipstock pipe disposed above the water bottom and below the upper end of the whipstock pipe, the whipstock system comprising a scab liner extending through the side exiting window in the whipstock pipe; extending the scab liner from through the window to the water bottom; and drilling a wellbore to a selected depth through the scab liner.