Oil & Gas Production

Application

Oilfield Gathering and Transportation Pipeline System

Product

MC Reinforced Nylon Lined Steel Pipe (PAMC Nylon Steel Composite Pipe)

Project Overview

Customer: Binan Oil Production Plant

Project: Corrosion and abrasion-resistant upgrade of the oilfield gathering and transportation pipeline network

Application Areas: Transfer stations, central gathering stations, and surface process pipeline networks throughout the Binan Oil Production Plant

Pipe Size: DN200–DN400

Total Installed Length: 3,870 m (12,697 ft)

Operating Pressure: 1.6 MPa

Installation Period: 2016–2019 (phased implementation)

Current Status: Stable long-term operation with excellent field performance.

Background

As Binan Oil Production Plant entered the ultra-high water-cut stage of production, the original carbon steel pipeline network experienced increasingly severe operational challenges.

Produced fluids containing water, crude oil, natural gas, and abrasive sand caused rapid internal corrosion and erosion, resulting in frequent pipeline failures and rising maintenance costs.

The operator required a more reliable piping solution capable of delivering long service life under demanding oilfield conditions.

Challenges

The existing steel pipeline system faced several critical issues:

• Severe internal corrosion caused by produced water.

• Continuous erosion from sand carried by production fluids.

• Hundreds of pipeline leak points and perforations every year.

• Annual maintenance, replacement, and environmental cleanup costs approaching RMB 2 million.

• Frequent shutdowns affecting production efficiency.

• Short service life of conventional carbon steel pipelines.

Project Requirements

The customer required a pipeline solution capable of:

• Resisting corrosion from produced water.

• Withstanding continuous sand abrasion.

• Supporting large-diameter pipelines (DN200–DN400).

• Operating safely at 1.6 MPa.

• Reducing maintenance frequency and operating costs.

• Simplifying field installation without hot work.

• Providing long-term operational reliability.

Solution

Guangdong Kejin supplied MC Reinforced Nylon Lined Steel Pipes to replace conventional steel pipelines in multiple surface gathering systems.

The composite pipeline was installed for transporting:

• Oil-water-gas multiphase fluids

• Produced water

• Medium and low water-cut crude oil

The project was completed in several phases between 2016 and 2019.

Why Nylon Lined Steel Pipe?

The selected pipeline combines the mechanical strength of steel with the corrosion and abrasion resistance of reinforced MC nylon.

Key advantages include:

Outstanding Corrosion Resistance

The reinforced nylon liner is highly resistant to produced water, chlorides, and corrosive oilfield fluids, significantly extending pipeline service life.

Superior Abrasion Resistance

The reinforced nylon lining effectively withstands continuous erosion from sand-laden production fluids, minimizing internal wear.

One-Piece Composite Construction

Using centrifugal casting technology, the nylon liner is permanently bonded to the steel shell, eliminating risks such as:

• Delamination

• Liner detachment

• Interlayer gaps

• Fluid seepage

Fast Installation

Flanged connections allow rapid installation without welding, reducing construction time while improving safety in oilfield environments.

Lower Flow Resistance

The smooth nylon inner surface reduces hydraulic friction, lowers pressure loss, and improves transportation efficiency.

Project Implementation

The nylon lined steel pipes were installed in several key facilities, including:

• Bin 2 Transfer Station

• Dan 56 Transfer Station

• Binwu Central Gathering Station

• Multiple surface gathering pipelines

Installation Method

• Above-ground installation

• Flanged mechanical connection

Transported Media

• Oil-water-gas mixtures

• Produced water

• Medium and low water-cut crude oil

Representative Applications

Surface Process Pipelines

• Size: DN300–DN400

• Pressure: 1.6 MPa

• Commissioned: 2017–2019

• Medium: Oil, gas, and water mixture

• Status: Operating normally

Binwu Gathering Station Liquid Transfer Pipeline

• Size: DN250–DN350

• Pressure: 1.6 MPa

• Commissioned: 2019

• Medium: Crude oil and produced fluids

• Status: Stable operation

Bin 2 Station Water Pipeline

• Size: DN300

• Length: 640 m

• Commissioned: 2019

• Medium: Produced water

• Status: Continuous operation

Large-Diameter Produced Water Pipeline

• Size: DN400

• Length: 480 m

• Commissioned: 2016

• Medium: Produced water

• Status: More than five years of continuous operation

Results

After commissioning, the pipeline system achieved significant operational improvements.

Zero Corrosion Perforation

No corrosion-related or abrasion-related pipeline perforation has been reported since installation.

Lower Maintenance Costs

Annual savings exceeded RMB 400,000 through reduced maintenance, repair, pipeline replacement, and environmental cleanup.

Longer Service Life

The composite pipeline has demonstrated a substantially longer service life than conventional carbon steel and many non-metallic piping alternatives.

Improved Operational Reliability

The gathering system now operates with fewer interruptions, lower maintenance requirements, and reduced environmental risk.

Technical Advantages

The project demonstrates several key benefits of reinforced MC nylon lined steel pipe in oilfield applications.

• Excellent resistance to corrosion, scaling, and abrasive wear

• High mechanical strength provided by the external steel shell

• Secure composite structure with no liner separation

• Suitable for large-diameter pipeline systems up to DN400

• Safe flange installation without on-site welding

• Smooth bore reduces pressure loss and energy consumption

• Designed for high-water-cut and sand-containing production environments

Customer Benefits

Although the initial investment is slightly higher than conventional carbon steel pipelines, the total lifecycle cost is significantly lower.

Key long-term benefits include:

• Reduced maintenance and replacement costs

• Lower production downtime

• Minimized crude oil leakage and environmental remediation expenses

• Longer pipeline service life

• Improved operational safety

• Higher overall system reliability

Conclusion

The successful deployment of MC Reinforced Nylon Lined Steel Pipe at Binan Oil Production Plant demonstrates its outstanding performance in demanding oilfield gathering and transportation systems.

For applications involving high water cut, abrasive sand, and severe internal corrosion, nylon lined steel pipe provides a durable and cost-effective alternative to conventional carbon steel pipelines. Its proven long-term performance, low maintenance requirements, and reduced lifecycle costs make it an ideal solution for upgrading surface process pipelines across modern oilfields.

Project Highlights

Item	Value
Industry	Oil & Gas
Application	Gathering & Transportation Pipeline
Pipe Size	DN200–DN400
Total Installed Length	3,870 m
Operating Pressure	1.6 MPa
Installation Period	2016–2019
Transport Medium	Oil, Gas, Produced Water
Connection	Flanged
Installation	Above Ground
Performance	Zero Corrosion Perforation
Annual Cost Saving	Over RMB 400,000
Service Status	Stable Long-Term Operation