Wellhead and Christmas Tree Solutions

In the oil and gas industry, wellhead equipment and Christmas tree assemblies form the critical pressure-containing barrier between the reservoir and surface production facilities. Yantai Sanmon Machinery Equipments Co., Ltd. provides a comprehensive range of API 6A certified wellhead and Christmas tree solutions engineered for diverse operational environments.

1 Wellhead System Components

Our wellhead systems are designed to support casing strings, seal the annular space, and provide controlled access to the wellbore throughout the drilling, completion, and production phases. Each component is manufactured to API 6A specifications with full traceability and material certification.

The Casing Head housing serves as the foundational component, providing a secure landing shoulder for casing hangers while maintaining pressure integrity. We offer casing heads in working pressure ratings from 2,000 PSI to 15,000 PSI, accommodating casing sizes from 4-1/2" to 20". Material options include carbon steel, low-alloy steel, and stainless steel with various trims for sour service (NACE MR0175 compliance).

Casing spools and Tubing heads complete the wellhead stack, each precision-machined with metal-to-metal seal pockets and dual-seal arrangements for maximum reliability. Our Tubing Head adapters allow smooth transition between the tubing head and Christmas tree, with configurations available for single and multiple tubing strings.

2 Christmas Tree Assemblies

The Christmas tree is the visible crown of the wellhead system, controlling production flow and providing access points for well intervention. SANMON supplies both conventional vertical trees and horizontal trees for subsea applications.

Our surface Christmas trees feature integrated master valves, wing valves, and swab valves configured to customer specifications. Valve options include API 6A Gate Valves, plug valves, and choke valves with manual, hydraulic, or pneumatic actuation. Flow cross designs accommodate single and dual-bore completions with pressure ratings matching the wellhead specification.

Each tree assembly undergoes full factory acceptance testing including hydrostatic shell test, gas seat test, and functional testing of all actuated components before shipment.

3 Custom Engineering and Support

Understanding that no two wells are identical, SANMON provides custom-engineered wellhead solutions tailored to your specific reservoir conditions, regulatory requirements, and operational preferences. Our technical team works closely with clients to design wellhead configurations that optimize safety, operational efficiency, and total cost of ownership over the well's lifecycle.

From material selection for corrosive environments to specialized connections for high-pressure, high-temperature (HPHT) applications, SANMON delivers wellhead solutions that meet the most demanding specifications. Our field service team provides installation supervision, commissioning support, and after-sales technical assistance to ensure trouble-free operation throughout the production life of your wells.