API 6A Spacer Spool for Oilfield Wellhead Systems
Product Description
The API 6A Spacer Spool is a high-pressure wellhead component designed to provide additional vertical spacing and reliable connections between wellhead equipment, blowout preventers (BOPs), casing heads, tubing heads, production equipment, and other pressure-control equipment.
Spacer spools are widely used in oil and gas drilling, completion, workover, and production operations where additional wellhead height or equipment spacing is required. By providing a controlled connection between different sections of a wellhead system, the spacer spool helps accommodate equipment configuration requirements while maintaining pressure integrity.
Our oilfield spacer spools are manufactured for demanding wellhead applications and can be supplied in different nominal sizes, working pressure ratings, flange configurations, bore sizes, and material grades according to customer requirements.
Depending on the wellhead design, a spacer spool may be configured with different flange types, including studded flange connections, through-bolted flange connections, or other API 6A-compatible connection configurations. The internal bore can also be selected according to the required casing, tubing, or pressure-control system.
The spacer spool body is manufactured from high-strength steel or other specified materials suitable for high-pressure oilfield service. Critical sealing and connection surfaces are precision machined to ensure dimensional accuracy, reliable assembly, and effective pressure containment.
For demanding applications, additional material and surface treatment options can be provided according to operating conditions and customer specifications. These options may include corrosion-resistant materials, wear-resistant surfaces, and supersonic coating technologies for selected components or sealing areas.
As an important API 6A wellhead component, the spacer spool can be integrated into complete wellhead and pressure-control systems. It is suitable for both new equipment installations and replacement applications where existing wellhead configurations require additional spacing or connection adaptation.
Product Features
| Parameter | Specification |
|---|---|
| Product Name | Spacer Spool |
| Standard | API 6A |
| Product Type | Wellhead Spacer Spool |
| Application | Oil & Gas Drilling, Completion, Workover and Production |
| Nominal Size | Available in Various Sizes |
| Working Pressure | 2,000 / 3,000 / 5,000 / 10,000 / 15,000 psi |
| Bore Size | Customized According to Requirements |
| Connection Type | Flanged / Studded / Through-Bolted |
| Flange Type | API 6A Compatible Flange |
| Material Class | AA / BB / CC / DD / EE / FF / HH |
| Product Specification Level | PSL 1 / PSL 2 / PSL 3 / PSL 3G / PSL 4 |
| Performance Requirement | PR 1 / PR 2 |
| Temperature Rating | According to API 6A and Service Requirements |
| Body Material | Forged Steel / Alloy Steel |
| Sealing Type | Metal-to-Metal / Elastomeric Sealing |
| Bore Configuration | Full Bore / Customized |
| Surface Treatment | Machined / Customized Coating Available |
| Pressure Testing | Hydrostatic Pressure Test |
| Manufacturing Process | Forging, Heat Treatment and CNC Machining |
| Inspection | Dimensional, Material and Pressure Inspection |
| Customization | Size, Pressure, Bore, Flange and Material Available |
| Application Equipment | Wellhead, BOP, Casing Head, Tubing Head and Pressure-Control Equipment |
Product Specifications
1. API 6A Wellhead Design
The spacer spool is designed for integration into API 6A wellhead and pressure-control systems. Its dimensions and connection configurations can be manufactured according to applicable industry standards and customer specifications.
2. High-Pressure Performance
Spacer spools are designed for high-pressure oil and gas applications and can be supplied for working pressures ranging from standard wellhead pressure ratings to high-pressure configurations such as 10,000 psi and 15,000 psi, depending on the product design.
3. Reliable Flange Connections
Precision-machined flange and sealing surfaces provide accurate equipment connection and reliable pressure containment. Different flange configurations can be supplied to match existing wellhead equipment.
4. High-Strength Materials
The spacer spool body can be manufactured using high-strength forged or alloy steel materials selected according to pressure, temperature, fluid characteristics, and applicable material requirements.
5. Precision Machining
Critical dimensions, bore surfaces, flange faces, sealing grooves, and connection areas are precision machined to improve dimensional consistency and ensure proper assembly with mating wellhead equipment.
6. Flexible Configuration
Spacer spools can be customized according to nominal size, bore diameter, working pressure, flange type, connection configuration, material class, PSL, PR, and other wellhead requirements.
7. Corrosion and Wear Resistance Options
For severe oilfield environments, suitable material selections and surface engineering technologies can be considered to improve resistance to corrosion, erosion, and mechanical wear.
For selected valve and wellhead components, supersonic coating technology can also be applied to improve surface hardness, wear resistance, and service performance where appropriate.
8. Suitable for Various Wellhead Systems
Spacer spools can be used with casing heads, tubing heads, BOP systems, production trees, manifolds, and other pressure-control equipment in drilling, completion, workover, and production operations.