casing head

can be flexibly designed according to clients' demands and actual working conditions.

Our casing head mainly comprises CH-22 and CH-29, the two casing heads are designed with 45 degrees of main bearing shoulder for supporting casing column weight transferred by casing hanger, and this design can prevent drilling tools from being wedged. The lateral outlet is a thread type, but connecting modes including a flange platform type (namely bolt type), an extending flange type, etc. can be supplied according to demands. The casing head can be flexibly designed according to clients' demands and actual working conditions.

The depth of bearing shoulder of the CH-29 casing head is bigger than of the CH-22, and can be applicable to drilling deep wells after being assembled with the CG-29 type casing hanger.

The casing head has a general-purpose straight hole design, and various specifications of slip and mandrel casing hangers can be mounted. Symmetrical top threads can be designed for fixing the anti-corrosion sleeve and the suspender, the straight hole is designed with one 45 degrees of shoulder, the bearing capacity is big, the slip casing hanger and the mandrel casing hanger can be exchanged, and bottom connecting modes comprising slip bottom connection, thread bottom connection and welding bottom connection can be supplied. CH-22-BP/CH-29-BP type casing head is provided with additional bolt locking device, and CH-22-L/CH-29-L type casing head is provided with the hanger locating locking device.

Working pressure: 2000PSI~15000PSI

Working medium: petroleum, natural gas, mud, gas containing H2S and Co2

Working temperature:-46°C~121°C(LU class)

Material class: AA, BB, CC, DD, EE, FF, HH

Specification class: PSL1~4

Performance class: PR1~2