sleeve four

detailed description:

The bottom flange           flange at the top of      A         B     C

11"	2,000	11"	2,000	500	230	250
			3,000	500	230	250
	3,000		3,000	500	230	250
			5,000	500	230	250
	5,000		5,000	650	230	250
			10,000	650	230	250

The casing four is used in the drilling of a very important equipment. Casing four can

control well head pressure. The casing four through the flange ends are usually located

in the casing head, tubing head is connected with the wellhead, is part of a system. The

casing four with a straight-through overshot, has45 degree shoulder design, avoids the

drilling tool on the sealing area to prevent damage, when pressure is applied, test plug

and socket protection device for wedging problem. sleeve four is usually equipped with

a threaded outlet and a nail tooth exports, can also produce according to requirements,

and the dual completion model for single completion. Characteristics, universal through

design, using 45degrees of shoulder. ,3 different export: line pipe, flanges ( a nail tooth

), the extended flange export export. , allowing the use of locking screw fixation of the

casing hanger. Additionally, the locking screw can be used to protect the salvaging

barrel. " Accept multiple sliding mandrel and the casing hanger. " Multiple bottom

sealing types, for example: PE / BG OO bottom, bottom and double" P" seal