Power Swivel

Key equipment at the wellhead in oil drilling and production, and a core component of rotary drilling rigs.

Core Functions and Roles:
* **Drilling Fluid Circulation:** Introduces high-pressure drilling fluid into the well, carrying drill cuttings back up, providing cooling and lubrication for the drill bit, ensuring smooth drilling operations.
* **Drill String Bearing and Rotation:** Bears the weight of the drill string in the well while simultaneously enabling its rotational movement. It is a crucial piece of equipment at the intersection of hoisting, rotating, and circulating functions.
* **Pressure Control and Monitoring:** Controls the pressure and flow rate of the drilling fluid, helping to adjust drilling parameters, monitoring downhole pressure changes, and providing real-time data support for drilling operations.

Structural Features:
* **Rotating Part:** Consists of a central tube, main bearing, anti-slip (centralizing) bearing, lower centralizing bearing, and connectors. The central tube bears the weight of the drill string and the drilling fluid pressure, while both ends are centralized by centralizing bearings.

**Fixed Components:** Includes the housing, upper cover, lower cover, gooseneck tube, lifting ring, and lifting ring pin. The housing serves as the load-bearing component, with an internal oil bath for lubrication and cooling of the bearings. The gooseneck tube at the top of the upper cover connects to a water hose.

**Sealing Components:** Employs a floating quick-release flushing pipe assembly with a dynamic seal between it and the central pipe. This seal is achieved through an overlapping arrangement of a Y-shaped sealing ring and a steel spacer ring, self-sealing under drilling fluid pressure. Even after wear, it maintains excellent sealing performance.

**Tightening/Locking Components:** Equipped with an air motor, gears, and a one-way pneumatic friction clutch for tightening and loosening the drill string.

**Technical Advantages:**
**High-Efficiency Sealing:** The floating quick-release flushing pipe design solves the sealing problem of high-pressure drilling fluid, extending service life.
**High Load-Bearing Capacity:** The main bearing's load-bearing capacity is no less than the maximum hook load of the drilling rig. The fixed component connections are reliable and can withstand high pressure.

**High Load-Bearing Capacity:** The main bearing's load-bearing capacity is no less than the maximum hook load of the drilling rig. Easy to operate: The rotary joint uses a pneumatically controlled clutch, improving drill string connection efficiency; compatible with 5000m and 7000m oil drilling rigs, adapting to different drilling depth requirements.

Applications: Primarily used in oil and gas drilling operations, it is a core component of rotary drilling rigs, widely applied on onshore and offshore oil drilling platforms, and suitable for drilling projects in various conventional and complex formations.