Patent ID: 8469093

Claim:
A method of activating autofill float equipment, comprising: i. launching a plug having a top and a bottom, comprising an interior flow passage with an activation device contained therein, the top of the plug having a breakable membrane covering the flow passage, and the bottom of the plug having an opening through which the activation device may pass inside a tubular string that is installed in a subterranean wellbore having an angle of deviation, the tubular string being equipped with an autofill float collar; ii. pumping a wellbore-service fluid behind the plug at a pumping pressure, causing the plug to travel down through interior of the tubing string; iii. allowing the plug to land on the autofill float collar; iv. increasing the pumping pressure until the breakable membrane ruptures, allowing wellbore-service fluid to enter the flow passage containing the activation device; and v. continuing to pump, allowing the activation device to exit the plug, enter the autofill collar and become lodged in an orifice tube, thereby causing expulsion of the orifice tube from the float collar, and activation of the float collar.