1. Tubing Head Spool
● Production casings can be sealed in the bottom of tubing spools through one or two P type seal, BT type seal and FS type seal or metallic sealing and combined sealing;
● There is 45°shoulder design in the upper part, so that it is with high hanging capacity. Wear bushings or test plugs can be installed for well drilling, tubing can also be hung to meet production requirements;
● The sealing element of lock screw is designed in the front end of threads, so that threads prevent from fluid corrosion and filth damage;
● The side outlet can either be threaded connection or bolted connection. Bolted connections can be equipped with valve-removal plugs;
● All testing ports and grease filling ports are metallic seal.
Technical Parameters
Nominal dimensions of upper and lower flanges: 7 1/16in～13 5/8in
Working pressure: 2000psi～20000psi
Temperature range: -50℉～+350℉（LX）
Material grade: AA～HH
Product specification level: PSL 1～PSL 3G
Performance level: PR1～PR2
2. Casing Spool
● Rongsheng can manufacture casing spools for conventional drilling and also special designed casing spools based on customer demands;
● Technical casings are sealed in the bottom of casing spools, production casings are hung in the upper part of spools;
● Technical casings can be sealed in the bottom of conventional spools through one or two P-type, BT-type and FS-type sealing or metallic sealing and combined sealing;
● There is 45° shoulder design in the upper part, so that it is with high hanging capacity. Wear bushing or test plug can be installed for well drilling, tubing can also be hung to meet production requirements;
● The sealing element of lock screw is designed in the front end of threads, so that threads from fluid corrosion and filth damage;
● The side outlet can either be threaded connection or bolted connection. Bolted connections can be equipped with removable valve plugs;
● All testing ports and grease filling ports are metallic seal.
3. Casing Head
● Rongsheng can manufacture casing heads of various specifications, including three widely applied bottom connection modes: welded type, threaded type and slip type;
● The assembly is designed with a 45° shoulder to support the weight of casing string transferred through casing hanger. Wear bushing and test plugs can be hung on the assembly for drilling operation;
● The side outlet can either designed to threaded connection or bolted connection based on demands;
● Lock screws on the flange can be fasten and fix the hanger, wear bushing and test plug.
Welded casing head
Slip-type casing head
Threaded casing head
Technical Parameters
Nominal dimensions of flanges: 11in～21 1/4in
Working pressure: 2000psi～15000psi
Temperature range: -50℉～+250℉（LU）
Material grade: AA～HH
Product specification level: PSL 1～PSL 3
Performance level: PR1～PR2
4. Slip-type hanger
The company can provide CB-type (the seal is in an upper position) and W-type (the seal is in a lower position) slip-type casing hangers, and interchangeable casing hanger mandrels for selection.
CB slip-type casing hanger
Temperature range: -50℉～+250℉
Bearing capacity: 80% of the tensile strength of casings
Sealing type: “H” type seal above slip insert
Seal simulation method: Deadweight of casing or manual locking, replaceable sealing elements.
W slip-type casing hanger
Temperature range: -50℉～+250℉
Bearing capacity: 100% of the tensile strength of casings
Sealing type: Rectangular seal under the slip insert
Seal simulation method: Deadweight of casing
