![]() ![]() One form of the wellhead includes a packing assembly for sealing around the polished rod. The piston is exposed to well pressure on the one side urging the piston outwardly to the valve open position and a spring engages the piston on the opposite side biasing the piston inwardly toward the valve closed position when well pressure is not sufficient to keep the spring compressed. A well pressure responsive cylinder and piston assembly is mounted on the side of the wellhead with an operating rod into the wellhead against the flapper valve to move the valve from the open position to a horizontal closed position. The locals rose up and some of them were mad as hell Cause it used to be the Double L. ![]() The flapper valve is spring biased toward the open position. When Edith and Earl renamed the Double E They nearly made history. The valve assembly includes a flapper valve mounted on a swivel pin for movement between a vertical open position and a horizontal closed position across the wellhead bore. We specialize in core shafts, idler rollers, safety chucks, core cutters, roll stands, brakes, web guides, and slitting equipment. Abstract: In one form of the invention, an integrated wellhead tubing string (100) having a reduced overall height is disclosed, comprising an integrated casing (104) having a first vertical bore (110) therethrough having a first inside diameter, a second vertical bore partially therethrough and having a second inside diameter, the second inside diameter greater than the first inside diameter, a first horizontal bore (108) therethrough in communication with the first vertical bore and a second horizontal bore (132) partially therethrough and in communication with the first vertical bore and positioned above and orthogonal to the first horizontal bore, a blowout preventer (106) comprising horizontally opposed, reciprocable rams disposed within the first horizontal bore, a production tee (128) formed by a threaded coupling (130) disposed on an outer surface of the integrated casing, the threaded coupling being in communication with the second horizontal bore, a stuffing box (134) disposed within the second vertical boreĪbstract: A wellhead for a polished rod pumping unit to provide emergency closure of the bore through the wellhead in the event of breakage of the polished rod. Double E is a manufacturer and worldwide supplier of web handling equipment for the paper, film, and foil converting, packaging, and web printing industries. ![]()
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