Description

API 6A Casing Spool for Oil & Gas Wellheads, Casing Hangers and BOP Connections

An API 6A Casing Spool forms a pressure-containing and casing-support stage in a conventional surface wellhead. It normally sits above the casing head or another casing spool and creates the next casing suspension and annulus-sealing stage as the drilling program runs additional casing strings.

Inside the spool, a machined bowl receives the casing hanger. The hanger transfers the suspended casing load into the wellhead structure, while a packoff or another qualified sealing arrangement isolates the casing annulus. Side outlets provide controlled annulus access, and the upper connection can interface with a BOP stack, another casing spool or the tubing head.

These functions work together. Selecting a wellhead casing spool therefore involves more than choosing a nominal flange size or pressure rating. The spool must also match the through bore, casing OD and weight, hanger profile, packoff, side outlets, upper and lower connections, material class, operating temperature and actual service conditions.

SGPE supplies oilfield casing spool configurations for land drilling rigs, offshore surface wellheads, deep and high-pressure wells, oil and natural gas production, sour-service wells, water injection, gas injection, workover operations and mature-field replacement projects.

For procurement teams comparing an API 6A casing spool manufacturer or supplier, the complete wellhead arrangement provides the best starting point. BOP compatibility, casing hanger and packoff matching, annulus-control connections and existing wellhead interfaces can be just as important as the spool body itself.

API 6A Casing Spool Product Overview

A casing spool creates another pressure-containing stage above the casing head or previous spool in a multi-stage surface wellhead.

Its lower connection mates with the equipment below it. The upper connection interfaces with the BOP stack, another casing spool, the tubing head or another approved wellhead component.

Inside the body, the casing hanger lands in a dedicated bowl. Depending on the wellhead design, the hanger can use a slip-type or mandrel-type configuration. The hanger carries the casing load, while the casing spool packoff maintains annular isolation around the suspended casing or hanger.

Side outlets give operators controlled access to the casing annulus for pressure monitoring, circulation, controlled bleed-off and other functions defined by the well operating program.

The spool therefore combines casing support, load transfer, annulus sealing, pressure containment and connection to the next wellhead stage within one pressure-containing component.

Before SGPE confirms a project configuration, the technical review normally considers the casing program, hanging load, through bore, hanger system, packoff, side outlets, upper and lower connections, pressure class, temperature and service environment.

API 6A Casing Spool Specifications and Technical Parameters

API 6A Casing Spool Basic Specifications and Wellhead Interfaces

The following parameters provide a practical reference for preliminary API 6A Casing Spool selection, supplier comparison and RFQ preparation. Final specifications depend on the approved casing program, mating equipment and project requirements.

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API 6A Casing Spool Materials, Service Conditions and Quality Requirements

Material selection, sealing performance and inspection scope should match the actual well environment and purchase specification. Sour-service, high-pressure and replacement projects may require additional material, testing and documentation controls.

Pressure Classes, PSL and Common Casing Spool Sizes

Working pressure remains one of the main procurement criteria for a high-pressure API 6A casing spool.

Project requirements can include 5K API 6A Casing Spools, 10K Wellhead Casing Spools and selected 15K High Pressure Casing Spools.

The pressure class gives buyers a useful starting point. The actual configuration also depends on nominal size, through bore, casing hanger, packoff, material class and mating connections.

API 6A PSL Selection Reference

Product Specification Level should follow the applicable pressure and material-class requirements rather than being treated as an independent option.

*Final availability depends on the qualified configuration and approved project specification.

This relationship becomes particularly relevant in 10K and 15K casing spool RFQs, higher material classes and sour-service projects. When an operator or EPC has already defined the requirements, pressure class, material class and PSL should appear together in the purchase specification.

Common API 6A Casing Spool Size References

Buyers frequently describe a wellhead casing spool by nominal size together with pressure rating.

The dimensions below represent common market and RFQ terminology. They do not mean that every size and pressure combination represents a standard SGPE stock configuration.

RFQs may also use descriptions such as 11 Inch 5K Casing Spool, 13-5/8 Inch 5K Casing Spool, 13-5/8 Inch 10K Casing Spool or 13-5/8 Casing Spool for BOP Connection.

SGPE confirms the final design from the actual connection designation, working pressure, through bore, ring groove, hanger profile and packoff rather than nominal size alone.

Where Does a Casing Spool Fit in the Wellhead?

A conventional surface wellhead develops in stages as the drilling program runs additional casing strings.

This relationship also helps distinguish the casing spool from a spacer spool or adapter spool.

A casing spool normally includes the internal bowl and sealing geometry required for casing suspension. A spacer spool primarily adjusts spacing or stack height. An adapter spool normally provides a transition between different sizes, pressure ratings or connection types.

A deeper casing program may use more than one casing spool to support successive intermediate or production casing strings.

API 6A Casing Spool Connections and Interface Matching

Connection details often determine whether a new casing spool will fit the existing wellhead without field modification.

Depending on nominal size and pressure class, the spool can use API 6B or API 6BX flange connections where applicable. The mating components must use the correct flange family, pressure rating, ring groove, gasket and bolting.

Procurement documents may also describe a Flanged Casing Spool, Studded Casing Spool or Flanged-by-Studded Casing Spool.

A flanged interface uses an integral flange and matching bolting arrangement. A studded interface uses threaded stud holes in the body face and can reduce stack height in suitable wellhead arrangements. Qualified hub interfaces can also apply to project-specific systems.

For a custom wellhead casing spool, the upper and lower interfaces can use different nominal sizes or pressure ratings when the approved wellhead design requires a transition.

Casing Hangers, Packoffs and Annulus Sealing

An API 6A Casing Spool with Casing Hanger functions as one casing-support system.

The spool provides the landing bowl. The hanger transfers the suspended casing load into the wellhead, while the packoff isolates the casing annulus.

Casing OD, casing weight, hanger geometry, bowl profile and sealing arrangement therefore need to work together.

Slip-Type Casing Hanger

A slip casing hanger uses mechanical gripping elements to support the casing.

This configuration suits many conventional surface wellhead systems where the field procedure requires the crew to land, tension and support the casing through a slip assembly.

Selection should consider casing OD, weight, grade, hanging load and hanger-bowl configuration.

When a project requires a coordinated package, SGPE can evaluate the casing spool, slip casing hanger and packoff together. This approach reduces the risk of load, bowl and sealing-interface problems between components sourced separately.

Mandrel Casing Hanger

A mandrel casing hanger connects directly into the casing string and lands in a dedicated profile inside the spool.

Correct selection requires the casing connection, hanger dimensions, bowl geometry, design load and packoff arrangement.

Casing Spool Packoff and Secondary Sealing

The casing spool packoff forms the pressure barrier around the suspended casing or casing hanger.

Depending on the approved configuration, the sealing system can use elastomeric elements, mechanically energized arrangements, metal-assisted seals or metal-to-metal technology.

High-pressure natural gas wells require close attention to sealing performance. Sour-service projects also require seal materials suitable for the defined H2S environment.

For a replacement casing spool with packoff, existing hanger information, packoff dimensions and sealing-bore measurements usually provide a better basis for matching than external flange dimensions alone.

API 6A Casing Spool for BOP Stack Connection

The API 6A Casing Spool for BOP Stack Connection forms an important part of the drilling-stage surface wellhead.

Depending on the approved arrangement, the BOP stack can connect directly to the upper casing spool interface or to another pressure-containing component above it.

The spool must match the BOP nominal bore, working pressure and lower connection. Bore alignment must remain correct through the pressure-control path, while the complete BOP/wellhead stack must fit the available rig height.

For a new drilling project, useful information includes the casing program, BOP nominal bore, rated working pressure, bottom flange or hub, stack arrangement and any critical height restriction.

Reviewing these interfaces together reduces the risk of flange mismatch, bore restriction or unexpected stack-height problems during rig installation.

Casing Spool Side Outlets and Annulus Control

Side outlets provide controlled access to the casing annulus.

A Casing Spool with Side Outlets can use opposed outlets or another approved arrangement according to the wellhead design. Operators can connect the outlets to API 6A gate valves, needle valves, pressure gauges, bleed-off lines and other annulus-control equipment.

Typical functions include annulus pressure monitoring, circulation and controlled bleed-off.

The outlet size, pressure rating, connection type and orientation must suit both the annulus-control duty and surrounding piping.

Orientation deserves particular attention in land-rig cellars and compact offshore installations. Even a correctly rated spool can create a field problem when an outlet interferes with valves, access or existing piping.

Sour Service API 6A Casing Spool for H2S Wells

A Sour Service API 6A Casing Spool requires material and sealing decisions based on the actual H2S-containing environment.

A general request for a “NACE casing spool” does not provide enough technical information on its own.

Buyers should provide available H2S and CO2 data, operating pressure, surface wellhead temperature, chloride conditions and other relevant fluid information. These conditions provide the basis for reviewing material class, heat treatment, hardness controls, sealing materials and corrosion-resistant requirements.

Projects may reference NACE MR0175 / ISO 15156 requirements for metallic materials used in H2S-containing oil and gas environments.

When a project requires CRA components or weld overlay, the RFQ should also define the alloy, required coverage area and inspection scope.

This information gives both buyer and supplier a stronger basis for an H2S casing spool, sour gas casing spool or sour-service wellhead spool quotation.

API 6A Casing Spool Applications

Casing spools support drilling, completion and long-term wellhead operation across a wide range of oil and gas projects.

Land Drilling and High-Pressure Wells

Land drilling rigs commonly use multi-stage surface wellheads as successive casing strings enter the well.

The casing spool creates another support and annulus-sealing stage while maintaining the pressure boundary below the BOP.

For a Land Drilling Casing Spool quotation, useful information includes casing size, hanging load, BOP connection, pressure class, side-outlet orientation and total stack height.

Deep wells can increase both casing load and pressure requirements. A 10K or 15K High Pressure Casing Spool therefore needs to match the hanger system, sealing arrangement, material class and complete wellhead pressure schedule.

Offshore Surface Wellheads

Offshore surface-wellhead projects can require tighter dimensional control, corrosion protection, lifting arrangements, inspection and documentation.

Limited platform space can also make side-outlet orientation and overall stack height important.

Where required, the casing spool can be evaluated together with the mating BOP, casing hanger or upper wellhead equipment to maintain interface compatibility.

Oil and Natural Gas Production Wells

After drilling and completion, the casing spool remains part of the permanent wellhead below the tubing head and Christmas tree.

It continues to support the casing and maintain annular pressure integrity during production.

Material and seal selection should reflect operating pressure, surface temperature, produced-fluid composition and corrosive components such as H2S or CO2 when present.

Water Injection and Gas Injection Wells

Water and gas injection support reservoir-pressure management and enhanced oil recovery.

An API 6A Casing Spool for Injection Wellheads remains part of the casing-support and pressure-containing system below the tubing head or injection tree.

Injection pressure, water chemistry, chlorides, gas composition, H2S, CO2 and temperature can influence the final material and sealing requirements.

Workover and Mature-Field Replacement

Workover operations can expose the casing spool when crews remove or replace upper wellhead equipment.

The field team may then inspect ring grooves, hanger bowls, packoff bores and side outlets before returning the equipment to service.

In mature fields, the original manufacturer may no longer support the installed wellhead. A Replacement API 6A Casing Spool for Existing Wellheads can provide a practical alternative when the operator wants to retain compatible existing equipment rather than replace the complete wellhead.

How to Select the Correct API 6A Casing Spool

A reliable selection starts with the complete casing program and surface wellhead arrangement.

Buyers do not need to know every manufacturing dimension before sending an API 6A Casing Spool RFQ.

For a new project, the casing program, wellhead schematic and BOP information normally provide enough information to begin the technical review. Remaining critical interfaces can then be confirmed before the drawing and quotation are finalized.

API 6A Casing Spool Dimensions, Drawings and Datasheet Information

Buyers frequently need API 6A casing spool dimensions, casing spool specifications, a casing spool drawing, GA drawing or casing spool datasheet before approving a purchase.

Because the spool interfaces with both lower and upper wellhead equipment, final dimensions should come from the approved project drawing rather than a generic dimensional chart.

For a new project, an approved wellhead schematic or mating-equipment drawing helps define the required spool configuration.

For a replacement, the existing casing spool drawing, datasheet, nameplate and field dimensions can significantly reduce uncertainty during technical matching.

Where documentation forms part of the purchase scope, SGPE can prepare applicable approved drawings and manufacturing records according to the agreed project requirements.

Custom API 6A Casing Spool for New Wellheads and Retrofit Projects

Some projects require a Custom API 6A Casing Spool because the upper and lower wellhead interfaces do not follow a simple standard arrangement.

The nominal size may change between stages, and the pressure class can also differ. Other projects may require a specific through bore, hanger bowl, packoff profile, side-outlet arrangement or compatibility with installed equipment.

SGPE supports custom configurations for EPC wellhead packages, brownfield modifications, mature-field MRO, wellhead retrofit projects and obsolete casing spool replacement.

The technical review can include connection sizes, flange families, through bore, casing hanger profile, packoff bore, secondary sealing, side-outlet arrangement, material class, sour-service requirements, inspection and documentation.

Replacement API 6A Casing Spool for Existing Wellheads

A replacement project often requires more interface verification than a new wellhead supplied from a complete drawing package.

The original drawing may be unavailable, while the nameplate may show only basic size and pressure information.

This information allows SGPE to evaluate a Custom Replacement Casing Spool for damaged equipment, obsolete wellhead systems and products that no longer have original manufacturer support.

Photographs help with initial identification. Verified dimensions remain particularly important for pressure-sealing surfaces, hanger profiles and internal interfaces.

API 6A Casing Spool Price and Quotation Factors

Buyers searching for an API 6A Casing Spool Price should expect the quotation to depend on the actual technical scope rather than one universal unit price.

Comparing API 6A Casing Spool Suppliers only by unit price can be misleading when their technical scopes differ.

A lower quotation may exclude the casing hanger, packoff, higher PSL, sour-service controls, FAT, third-party inspection or a complete documentation package.

For an accurate API 6A Casing Spool Price and Quotation, provide the casing program, pressure class, upper and lower interfaces and main service conditions.

SGPE API 6A Casing Spool Manufacturing and Project Support

SGPE supports new wellhead projects, customized interfaces and replacement requirements rather than supplying only the pressure-containing spool body.

For new wells, technical review can begin with the casing program, BOP arrangement and pressure schedule. This helps identify the spool position, hanger system and mating interfaces before manufacturing details are finalized.

For replacement work, existing drawings, nameplates, photographs and field measurements provide a practical starting point even when the original documentation is incomplete.

When the project requires a matched package, the supply scope can also include casing hangers, packoffs, casing heads, tubing heads, API 6A gate valves, adapter spools, spacer spools and related API 6A wellhead equipment.

Manufacturing starts with material identification and traceability. Machining then creates the through bore, flange faces, ring grooves, hanger bowl, packoff profile and side-outlet interfaces.

These areas require close dimensional control because deviations can affect casing hanger landing, annulus sealing or compatibility with mating equipment.

Depending on the approved project scope, quality control can also include heat treatment, mechanical-property verification, hardness checks and applicable nondestructive examination.

Pressure Testing, FAT and Documentation

Operator- and EPC-controlled projects may require FAT, third-party inspection, ITP/QCP documentation or a Manufacturing Data Record.

Defining these requirements during the RFQ stage allows the quality and documentation scope to appear in the original technical and commercial proposal rather than being added after manufacturing begins.

API 6A Casing Spool Installation and Maintenance

Before installation, the field team should compare the casing spool with the approved wellhead drawing and confirm the upper and lower connections, ring gasket, bolting and through bore.

The hanger bowl and packoff bore should also match the selected casing hanger and sealing system.

Flange faces, ring grooves and internal sealing surfaces should remain clean and protected from mechanical damage. Side-outlet orientation also needs confirmation before final assembly, especially where a well cellar or offshore piping arrangement limits available space.

When the spool sits below a BOP, the field team should confirm bore alignment and the complete BOP/wellhead stack arrangement.

During operation, routine inspection should focus on accessible flange interfaces, external corrosion, annulus outlets, valves and visible signs of leakage.

Workover operations can provide access to ring grooves, hanger bowls and sealing bores. Any damaged pressure-sealing surface should receive an engineering assessment before the equipment returns to service.

Common API 6A Casing Spool Procurement Mistakes

Selecting Only by Nominal Size

An 11-inch or 13-5/8-inch description does not define the complete spool. Working pressure, upper and lower interfaces, through bore, hanger profile and packoff still require confirmation.

Selecting Only by Pressure Rating

A 10K or 15K designation does not identify connection size, hanger type, material class, sealing arrangement or applicable PSL. Procurement teams should compare the complete technical configuration rather than the psi rating alone.

Ordering Without Casing Hanger Information

The hanger and spool bowl must match. Providing casing OD, hanger type, drawing, part number or verified dimensions can shorten technical clarification and reduce the risk of selecting the wrong internal profile.

Forgetting the BOP Interface

A drilling casing spool may connect directly to the BOP stack. Buyers should confirm the BOP bore, working pressure, lower connection and any stack-height restriction before approving the spool drawing.

Ignoring Side-Outlet Orientation

A correctly rated outlet can still create an installation problem when it conflicts with valves, well-cellar access or offshore piping. The approved drawing should therefore confirm the final outlet orientation.

Treating “NACE” as a Complete Sour-Service Specification

A generic “NACE required” statement does not define the H2S environment. H2S, CO2, pressure, temperature, chloride and other corrosion information provides a stronger basis for reviewing materials and sealing systems.

Comparing Casing Spool Suppliers Only by Price

A lower price may reflect a different material class, PSL, casing hanger scope, sealing system, inspection package or documentation scope. Procurement teams should compare the complete technical and commercial offer.

Ordering a Replacement from Photographs Alone

Photographs provide useful visual information, but they cannot confirm every internal or pressure-sealing interface. A nameplate, GA drawing or verified dimensional survey provides a stronger basis for replacement matching.

Information Required for an API 6A Casing Spool RFQ

A useful API 6A Casing Spool RFQ should identify the well application and casing program first.

For a new project, buyers should provide the working pressure, upper and lower connection sizes, connection type, through bore and suspended casing OD, weight, grade and connection.

The RFQ should also identify whether the wellhead uses a slip or mandrel casing hanger, what packoff or sealing arrangement the project requires and what side-outlet size, pressure rating and orientation the wellhead needs.

Material and service information should include the surface operating temperature, working medium, material-class requirement and PSL when the operator or EPC has already specified them.

When the spool interfaces with a BOP stack, include the BOP nominal bore, working pressure and bottom connection.

For sour-service projects, available H2S, CO2, chloride and other corrosion information will support material and sealing selection.

Inspection and documentation requirements such as FAT, ITP, third-party inspection, MTR, NDE reports and MDR should also appear in the RFQ when they form part of the purchase scope.

For a Replacement API 6A Casing Spool RFQ, customers can provide the existing nameplate, GA drawing, photographs, overall height, flange details, ring grooves, through bore, casing hanger information, packoff dimensions and available field measurements.

Customers do not need to reconstruct every original manufacturing parameter before contacting SGPE. Technical review can begin with the information already available and identify any remaining critical interfaces during clarification.

Frequently Asked Questions About API 6A Casing Spools

1. What is an API 6A Casing Spool and what does it do in a wellhead?

An API 6A Casing Spool creates an additional casing-support, annulus-sealing and pressure-containing stage in a surface wellhead. It normally sits above the casing head or another casing spool as the drilling program runs an intermediate or production casing string.

The internal bowl supports the casing hanger, while the packoff seals the casing annulus. Side outlets provide controlled annulus access, and the upper connection can interface with a BOP stack, another wellhead spool or the tubing head. These functions make the wellhead casing spool an important component in land drilling, offshore surface wellheads, completion, production and workover systems.

2. What is the difference between a Casing Spool, Casing Head and Tubing Head?

A casing head normally establishes the first major casing-support stage at the lower part of the surface wellhead. A casing spool adds another casing suspension and annulus-sealing stage above the casing head or a previous spool as additional casing strings enter the well.

A tubing head sits above the final casing stage and supports the production tubing below the Christmas tree or injection tree. Although these components can look similar externally, their internal profiles, hanger systems, sealing arrangements and positions in the wellhead differ. Correct identification becomes especially important during wellhead replacement, brownfield modification and mature-field MRO projects.

3. What working pressures are available for API 6A Casing Spools?

Applicable project configurations can cover 2K, 3K, 5K, 10K and 15K casing spool requirements, corresponding to rated working pressures from approximately 2,000 to 15,000 psi.

The pressure class alone does not define the complete product. A 5K, 10K or 15K High Pressure Casing Spool must also match the nominal wellhead size, through bore, casing hanger, packoff, upper and lower connections, material class, operating temperature, PSL and mating equipment. High-pressure drilling, natural gas and deep-well projects usually require especially careful review of the complete pressure-containing system.

4. What API 6A Casing Spool sizes are commonly referenced?

Common market and RFQ terminology can include 11 Inch Casing Spool, 13-5/8 Inch Casing Spool, 16-3/4 Inch Wellhead Spool, 20-3/4 Inch Casing Spool and 21-1/4 Inch Wellhead Casing Spool.

Buyers may also search for combinations such as a 13-5/8 Inch 5K Casing Spool or 13-5/8 Inch 10K Casing Spool. However, nominal size does not define the complete wellhead interface. The quotation should also confirm pressure rating, API 6B or API 6BX connection where applicable, through bore, ring groove, casing hanger profile and packoff arrangement.

5. Can an API 6A Casing Spool connect directly to a BOP stack?

Yes, when the approved drilling wellhead arrangement uses the API 6A Casing Spool below the BOP stack. This configuration is common during drilling stages where the casing spool supports the suspended casing while also forming part of the pressure-control path below the blowout preventer.

The casing spool must match the BOP nominal bore, rated working pressure and lower connection. The technical review should also consider bore alignment, flange or hub interface, ring groove and total BOP/wellhead stack height. Providing the BOP drawing or connection details during the RFQ stage helps reduce the risk of interface problems during land-rig or offshore installation.

6. What connections can an API 6A Casing Spool use?

Depending on the approved configuration, a casing spool can use API 6B or API 6BX flange connections where applicable, together with the correct R, RX or BX ring gasket and matching bolting.

Project designs may also use flanged, studded, flanged-by-studded or qualified hub interfaces. The upper and lower connections do not always need to use the same nominal size or pressure class, which is particularly relevant for custom casing spools, BOP transitions, brownfield wellhead modifications and replacement projects. Final connection details should always match the mating casing head, lower spool, BOP or tubing head.

7. Can SGPE supply an API 6A Casing Spool with a Casing Hanger and Packoff?

Yes. SGPE can evaluate a matched API 6A Casing Spool, Casing Hanger and Packoff package when the project requires these components together.

The casing hanger can use a slip-type or mandrel-type design, depending on the casing program and installation method. The hanger bowl, casing OD, hanging load, packoff bore and sealing arrangement must work as one system. Supplying or reviewing these components together can reduce interface risks during drilling, completion and replacement projects, especially when the buyer does not have complete original wellhead documentation.

8. What are the side outlets on an API 6A Casing Spool used for?

Casing spool side outlets provide controlled access to the casing annulus. Operators can use them for annulus pressure monitoring, circulation, controlled bleed-off and connection to annulus valves or pressure instruments.

A Casing Spool with Side Outlets can use opposed outlets or another project-specific arrangement. The outlet size, pressure rating, connection type and angular orientation should match the annulus-control system and surrounding piping. Outlet orientation deserves particular attention in land-rig cellars, offshore platforms and compact wellhead installations where space around valves and piping is limited.

9. Can SGPE supply a Sour Service API 6A Casing Spool for H2S wells?

SGPE can evaluate Sour Service API 6A Casing Spool requirements for defined H2S-containing oil and gas wells. Sour-service selection should reflect the actual well environment rather than relying only on a general request for a “NACE casing spool.”

Available H2S and CO2 data, operating pressure, surface wellhead temperature, chloride conditions and produced-fluid information help determine the appropriate material class, heat treatment, hardness controls and sealing materials. Projects may reference NACE MR0175 / ISO 15156 requirements, while selected applications may also require CRA components or corrosion-resistant overlay according to the approved specification.

10. Can SGPE replace an obsolete or damaged API 6A Casing Spool?

Yes. A Replacement API 6A Casing Spool can be evaluated for damaged, obsolete or unsupported wellhead equipment in mature oil and gas fields, workover projects and brownfield retrofit programs.

Useful information includes the existing nameplate, GA drawing, upper and lower connections, ring grooves, overall height, through bore, side outlets, casing hanger bowl and packoff dimensions. Field photographs and verified measurements can also support technical matching when the original manufacturer no longer provides drawings or spare equipment. Internal sealing and hanger interfaces require particular attention during replacement design.

11. Can SGPE provide API 6A Casing Spool drawings, dimensions and project documentation?

Depending on the agreed project scope, SGPE can provide applicable API 6A Casing Spool drawings, dimensions and manufacturing documentation for technical review and project handover.

Customers can provide an existing GA drawing, casing spool datasheet, wellhead schematic, BOP drawing or field measurements during the quotation stage. Final dimensions such as overall height, through bore, upper and lower interfaces, hanger-bowl profile, packoff bore and side-outlet position should follow the approved project configuration rather than a generic dimensional chart. Documentation can also include applicable material, inspection and pressure-test records according to the agreed purchase scope.

12. How can I get an accurate API 6A Casing Spool price and quotation?

For an accurate API 6A Casing Spool Price and Quotation, provide the casing program, rated working pressure, upper and lower connections, through bore, suspended casing information, casing hanger type, packoff requirements, side outlets, operating temperature and service conditions.

For a casing spool below a BOP stack, include the BOP bore, pressure rating and bottom connection. Sour-service projects should include available H2S and CO2 information, while replacement projects benefit from existing drawings, nameplates, photographs and verified dimensions. Based on the confirmed wellhead configuration and purchase scope, SGPE can prepare the corresponding technical proposal and quotation for the project.

Request an API 6A Casing Spool Quotation from SGPE

Available configurations can cover 2K, 3K, 5K, 10K and 15K pressure classes, API 6B or API 6BX interfaces where applicable, slip or mandrel casing hangers, packoffs, annulus side outlets and selected sour-service requirements.

Applications include drilling and BOP wellhead systems, high-pressure wells, oil and gas production, water or gas injection, workover, brownfield retrofit and mature-field replacement.

For a new project, send the casing program, working pressure, upper and lower connections, hanger requirement, BOP information and service conditions. For a replacement spool, provide available drawings, nameplates, photographs, dimensions, hanger and packoff details.

SGPE supplies API 6A Casing Spools, Wellhead Casing Spools, High Pressure Casing Spools, Custom Casing Spools and Replacement Casing Spools for land and offshore oil and gas projects. Based on the confirmed wellhead configuration, SGPE will prepare the corresponding technical proposal and quotation for your project.

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