WELLHEAD EQUIPMENT

Casing Head Housing

Name: Casing Head Housing
Brand: Energy Equipment International

The casing head housing is the lowest permanent part of a conventional surface wellhead. It connects to the surface casing, carries the remaining wellhead and completion equipment, accepts the first casing hanger and provides annulus and BOP-test functions.

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Annotated cutaway of a casing head housing

Representative equipment image. Final configuration is project-specific.

FUNCTION & PURPOSE

What the equipment does

Attaches the wellhead to the surface casing
Suspends the first intermediate casing string
Supports the BOP stack while drilling
Provides outlets for fluid returns
Provides a means to pressure-test the BOP stack
Can include a test port for a welded or other non-threaded bottom connection
Also known as the A-section, Braden head or starting head

AVAILABLE ARRANGEMENTS

Typical configurations

C-22 straight bowl for light-to-intermediate casing loads
C-29 deeper bowl for intermediate-to-extreme casing loads
C-21 and C-22 hanger compatibility where verified
Optional lockdown screws and bowl-protector screws
With or without baseplate
Threaded, weld, slip-lock or project-specific bottom connection

PRODUCT TYPES & DESIGN OPTIONS

Products in this family.

Each type is reviewed as a separate technical selection. Compatibility, ratings, dimensions, seals and interfaces must be confirmed against the approved wellhead and completion design.

C-22 housing

Straight-bowl starting head for light-to-intermediate suspended casing loads.

C-21/C-22 hanger compatibility
Optional lockdown screws
Optional baseplate
Multiple bottom connections

C-29 housing

Deeper-bowl configuration for intermediate-to-extreme casing loads.

Deeper upper bowl
C-21/C-22 compatibility where verified
Optional lockdown screws
Optional baseplate

TECHNICAL REQUIREMENT TABLE

Specification basis

Design basisAPI 6A / ISO 10423, subject to the approved purchase specification

Rated working pressureProject-specific; reference ranges shown where stated by the source product page

Temperature classSelected for the approved operating envelope

Material classSelected for standard, sour or corrosive service

PSL / PRConfirmed from the customer data sheet and applicable API 6A edition

DocumentationApproved drawings, material certificates, pressure-test reports and traceability records as agreed

Reference pressure range3,000 to 15,000 psi where available for the selected configuration

Bottom connectionThreaded, slip-on weld, slip-lock or other approved preparation

BowlC-22 or C-29 compatible geometry

Values are confirmed against the customer specification. Availability is subject to the approved scope, manufacturer capability and technical review.

TYPICAL APPLICATIONS

Where it is used

Surface-casing termination
Conventional multi-spool wellheads
Drilling and BOP operations
Standard and sour-service wells

STANDARDS & DOCUMENTATION

Supply can be reviewed against API 6A / ISO 10423 and other project-specified requirements, where applicable. The agreed documentation package may include material certificates, dimensional records, pressure-test reports, inspection records, certificates of conformity, packing lists and traceability documents.

FOR AN ACCURATE OFFER

Information to include in your enquiry

Equipment name and quantity
Size, bore and working pressure
Temperature and material class
PSL, PR and sour-service requirement
End connections and mating equipment
Datasheet, drawing, nameplate or photograph
Inspection and documentation requirements
Required delivery location and schedule

TECHNICAL & COMMERCIAL ENQUIRY

Need casing head housing?

Send the available RFQ, data sheet, drawing, equipment details or photographs. We will review the requirement and respond with any necessary clarification.

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