Casing Head Price
Casing head refers to a special short joint which is related with the top of casing string by way of screw thread or flange and positioned in the outer casing when drilling on land or sea, and is used to support and fix casing string and other wellhead gadgets when drilling on land or sea.
Benefits: the production of casing head has to go through a series of processing which include casting blank, difficult reducing, satisfactory turning, dull, drilling, warmness remedy, best inspection, and so on. we technique casing head in different ranges in line with client requirements. and there are api certificates recognized by way of american petroleum institute, and the first-class can be guaranteed.
Our enterprise can independently layout and method forging dies consistent with the drawings, and could try our first-rate to store forging materials. the burden of the solid product can attain 60kg-5000kg, and the forging needs to be finished thru heating, pre-forging, forming and other processes. numerous materials inclusive of 42CrMo, 4140, 4130, 40cr, 20CrMnMo, 18CrNiMo7-6, 410ss can be solid. our employer has APIcertificates and SQ1 certificates and has many years of revel in in petroleum product processing.
The casing head is usually made of 35 or 42 Cr Mo alloy structural steel. There is also a casing hanger in the casing head, which is used to hang casing strings of corresponding specifications and seal the annulus. BOP stack shall be installed on it. After the well is completed, the Christmas tree is installed on the casing head.
The production of casing head generally includes the following process flow:
1. Blank casting: casting materials into workpieces.
2. Rough machining, that is, preliminary cutting of workpiece blanks.
3. Finish turning: use the lathe to process the rough cutting workpiece to the design accuracy.
4. Bore the diameter, and use the boring machine to bore out the designed inner diameter.
5. When drilling, the external connecting bolts of the drill are drilled out.
6. Heat treatment: quenching and tempering the workpiece.
7. Inspection and test: the geometric dimension, hardness, roughness, internal and external defects of the finished casing head shall be inspected and NDT shall be carried out.
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