Polished Bore Receptacle (PBR)

Upper Polished Bore Receptacle (PBR)

An Upper Polished Bore Receptacle (PBR) is a precision-machined completion component installed in the upper section of a tubing string to provide a smooth, polished sealing bore for seal assemblies. It accommodates tubing movement caused by temperature changes, pressure fluctuations, and mechanical loads while maintaining a reliable pressure-tight seal. Upper PBRs are widely used in production, injection, intelligent well, and packer completion systems.

Manufactured from high-strength alloy steel or corrosion-resistant alloys, Upper Polished Bore Receptacles are designed for demanding onshore, offshore, deepwater, and High-Pressure High-Temperature (HPHT) well environments.

Applications

Oil and gas production wells

Injection wells

Offshore drilling and completion

Onshore production operations

Deepwater completions

Horizontal wells

Directional wells

Intelligent well systems

High-Pressure High-Temperature (HPHT) wells

Dual completion systems

Gravel pack completions

Sand control systems

Technical Specifications

Specification Details

Product Type Upper Polished Bore Receptacle (PBR)

Material AISI 4145H Alloy Steel, 13Cr Stainless Steel, Inconel 718, Duplex Stainless Steel

Manufacturing Standard API Spec 5CT, API 11D1, ISO 9001

Tubing Sizes 2⅜" – 7"

Bore Diameter Application Specific

Length 2 ft – 20 ft (0.6 – 6.1 m)

Working Pressure Up to 15,000 psi

Temperature Rating Up to 204°C (400°F)

Connection Type API EUE, NUE, Premium Connections

Seal Bore Finish Precision Polished

Service Standard and Sour Service (H₂S/CO₂)

Corrosion Resistance Excellent

Key Features

Precision-machined polished sealing bore

Provides reliable seal integrity

Accommodates tubing expansion and contraction

High-pressure sealing capability

Excellent corrosion and wear resistance

Smooth internal bore for seal movement

Compatible with multiple seal assembly designs

Suitable for HPHT applications

Long operational service life

Manufactured to API standards

Working Principle

The Upper Polished Bore Receptacle is installed above the production packer within the tubing string.

During operation:

The PBR provides a polished sealing surface.

Seal assemblies or seal units are inserted into the polished bore.

As the tubing expands or contracts due to pressure and temperature changes, the seal assembly moves smoothly inside the polished bore.

The polished surface maintains a pressure-tight seal while allowing controlled axial movement.

This prevents excessive stress on the tubing string and completion equipment while maintaining well integrity.

Advantages

Accommodates thermal expansion and tubing movement

Maintains pressure integrity

Reduces stress on tubing and packers

Improves completion reliability

Minimises seal wear

Suitable for high-pressure environments

Long service life

Easy integration with completion systems

Excellent resistance to corrosion and erosion

Low maintenance requirements

Available Types

Standard Upper Polished Bore Receptacle

Extended Upper PBR

Premium Upper PBR

Heavy-Duty Upper PBR

HPHT Upper PBR

Sour Service Upper PBR

Dual Bore PBR

Deepwater Upper PBR

Intelligent Completion PBR

Custom Upper Polished Bore Receptacle

Compatible Equipment

Production Packers

Seal Assemblies

Seal Bore Extensions

Production Tubing

Sliding Side Door (SSD)

Landing Nipples

Safety Valves

Flow Couplings

Gas Lift Mandrels

Completion Accessories

Inspection Before Deployment

Inspect polished bore for scratches or surface damage.

Verify thread dimensions and compatibility.

Check sealing surfaces for imperfections.

Confirm pressure and temperature ratings.

Perform dimensional inspection.

Ensure API certification and material traceability.

Install thread protectors during handling and transportation.

Maintenance

Clean thoroughly after retrieval.

Inspect polished bore for wear, corrosion, or scoring.

Replace damaged sealing components if required.

Protect threaded connections with thread protectors.

Store in a clean, dry environment.

Apply approved corrosion inhibitors for long-term storage.

Maintain complete inspection and service records.

Industries Served

Oil & Gas Exploration

Offshore Production

Onshore Production

Well Completion Services

Deepwater Operations

Geothermal Energy

Energy Service Companies

Upper Polished Bore Receptacle Available for Sale & Lease

We supply premium-quality Upper Polished Bore Receptacles (PBRs) for sale and rental, delivering reliable sealing and tubing movement compensation solutions for oil and gas completion systems. Our PBRs are manufactured to API and ISO standards to ensure exceptional performance, durability, and pressure integrity in demanding well environments.

Our Services

Upper Polished Bore Receptacles for Sale

Short-Term Equipment Rental

Long-Term Lease

Complete Completion Tool Packages

Bulk Supply

Worldwide Delivery

Fast Equipment Mobilisation

Equipment Inspection & Certification

Technical Consultation

Installation Support

Preventive Maintenance

After-Sales Service

Why Choose Our Upper Polished Bore Receptacles?

Manufactured to API and ISO international standards

Precision-polished bore for superior sealing performance

Designed for offshore, onshore, deepwater, and HPHT applications

Available in a wide range of tubing sizes and premium connection types

Excellent corrosion, erosion, and wear resistance

Competitive pricing for both purchase and lease

Fast delivery with responsive technical support

Our Upper Polished Bore Receptacles are engineered to provide dependable pressure sealing, accommodate tubing movement, and enhance long-term well integrity. Whether you require a single PBR or a complete completion equipment package, we deliver high-quality solutions backed by experienced technical expertise and outstanding customer support.