Patent ID: 8397825
Filing Date: 2013-03-19
Classification: E21B

Abstract:
1. A method for lubricating a downhole tool into a wellbore, the method comprising the steps of: installing a blow out preventer to the top of a wellhead, wherein the blow out preventer includes internal rams; suspending a hydraulic assembly over the wellhead, wherein the hydraulic assembly includes a rod; connecting a pressure isolation connector to the bottom of the hydraulic assembly, wherein the pressure isolation connector is provided with a lower packing gland and an upper packing gland; extending the rod through the upper packing gland and lower packing gland of the pressure isolation connector; assembling the downhole tool; connecting the assembled downhole tool to the rod; securing at least one spacer spool to the bottom of the pressure isolation connector, wherein the spacer spool encases the assembled downhole tool; connecting the spacer spool to the top of the blow out preventer; equalizing the pressure in the at least one spacer spool and the pressure in the wellbore; holding the pressure in the spacer spool with the lower packing gland; activating the hydraulic assembly to extend the rod and downhole tool through the blow out preventer; and suspending the downhole tool in the blow out preventer with the internal rams of the blow out preventer.