The drilling spool is made of alloy steel and heat-treate according to API 16A specification. The drilling spool is used to connection with wellhead equipment in the high pressure oil and gas well which is with a pressure of less than 105Mpa, the connecting of the by passage of the drilling spool with the valves and pipes will play not only a role of blowout and choking , but also a role of connecting the BOP with the wellhead.
Installation and Maintenance
* The drilling spool is used when connecting with the BOP and the casing head.
* The steel ring grove should be cleaned before installating the drilling spool.
* Tighten studs averagely of connecting the spool with the BOP.
Technical parameter of Drilling spool
| Description | H (mm) | H1 (mm) | L (mm) |
| 7 1/16" X 5M To 7 1/16" X 5M With side outlet 3 1/8" X 5M To 3 1/8" X 5M | 660 | 330 | 408 |
| 11" X 15M To 11" X 15M With side outlet 3 1/16" X 15M To 3 1/16" X 15M | 1100 | 550 | 450 |
| 13 5/8" X 5M To 13 5/8" X 5M With side outlet 2 1/16" X 5M To 2 1/16" X 5M | 1524 | 305 | 565 |
| 13 5/8" X 5M To 13 5/8" X 5M With side outlet 3 1/8" X 5M To 3 1/8" X 5M | 700 | 350 | 468 |
| 13 5/8" X 5M To 13 5/8" X 5M With side outlet 4 1/16" X 5M To 4 1/16" X 5M | 700 | 350 | 484 |
| 13 5/8" X 10M To 13 5/8" X 10M With side outlet 4 1/16" X 10M To 4 1/16" X 10M | 980 | 490 | 550 |
| 20 3/4" X 3M To 20 3/4” X 3M With side outlet 4 1/16" X 5M To 2 1/16" X 5M | 636 | 318 | 660 |
| 20 3/4" X 3M To 21 1/4" X 2M With side outlet 3 1/16" X 10M To 3 1/16" X 10M | 2500 | 800 | 590 |
| 21 1/4" X 2M To 21 1/4" X 2M With side outlet 4 1/16" X 5M To 4 1/16" X 5M | 700 | 350 | 575 |
| 21 1/4" X 2M To 20 3/4" X 3M With side outlet 4 1/16" X 10M To 4 1/16" X 10M | 750 | 375 | 582 |
About JC Wellhead
Jingcheng Petroleum Machinery Manufacturing Co.,Ltd was established in 2008, we are specialized in design and manufacturing of the oilfield wellhead equipment. We - YCJC are a registered supplier for CNPC, GWDC, CCDC in China.
The wellhead equipment we manufacture and supply include casing head, tubing head, casing spool, tubing spool, Gate valve, Choke valve, Check valve, X-mas tree, VR plug, Tubing hanger, casing hanger, Running tool, Wear bushing, spacer spool, flange adapter, union flange, Hammer union, Elbow, swivel joint, block cross, Block Tee, companion flange, instrument flange, weldneck flange, FC gate, FC seat, FC stem, API Clamp, API Clamp Hub
