step 211 before ending as indicated at step 213 the method may comprise introducing hydraulic fluid axially between the zero differential pressure seal and the primary seal and providing the inner barrel with a circumferential annular groove in the outer surface for circumferentially dispersing the hydraulic fluid about the inner and outer barrels the method also may further comprise controlling flow of the gas between the reservoir and the interiors and controlling flow of the fluid between the reservoir and the interiors with a three way isolation valve between the gas in the reservoir and the interiors a check valve between the fluid in reservoir and the seals a tee fitting between the check valve the three way isolation valve and the seals for fluid communication therewith the seals may be lubricated from the reservoir by closing the three way isolation valve to the tee fitting such that gas pressure from the interiors forces fluid from the reservoir through the check valve and the tee fitting to the seals and directly accessing the gas and fluid in the reservoir from an exterior of the reservoir by closing the three way isolation valve to the reservoir such that gas pressure from the interiors is isolated from the reservoir and limited to the tee.