Oil & Gas Expo High-Quality Product Recommendations

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Baoji Tianlian Huitong Composite Material Co., Ltd.

Baoji Tianlian Huitong Composite Material Co., Ltd. was established in July 2015 with a registered capital of 102 million yuan. The company has two RTP production bases in Baoji High-tech Zone, equipped with nine advanced and well-equipped RTP production lines, capable of producing polyester fiber reinforced RTP, glass fiber tape reinforced RTP, steel cord pre-impregnated tape reinforced RTP, and aramid fiber reinforced RTP.

The company has obtained the Special Pressure Pipeline Component Manufacturing License and the Mining Safety License; it owns 52 patents for composite pipe technology. It is recognized as a national high-tech enterprise, a "Little Giant" specializing in high-quality, specialized, and innovative enterprises, a provincial-level enterprise technology center, an outstanding enterprise in economic contribution in Shaanxi Province, and an innovative science and technology enterprise in Shaanxi Province.

Its four core products (polyester fiber reinforced RTP, aramid fiber reinforced RTP, glass fiber reinforced RTP, and steel cord tape reinforced RTP) have all passed the API 15S product certification by the American Petroleum Institute; it has obtained the API QI and ISO9001 quality management system certification; it has also received ISO14001 environmental management system certification, ISO45001 occupational health and safety management system certification, and HSE system certification.

With its superior product performance and technological advantages in the industry, Tianlian Huitong has been a main supplier for the China National Petroleum Corporation (CNPC) and the China National Petrochemical Corporation (Sinopec) for many years. Its products are exported to foreign users such as the EBS oilfield in Iraq, the Rumaila oilfield in Iraq, the Aktobe oilfield in Kazakhstan, Tatarstan Oil in Russia, and Lukoil, receiving unanimous praise from customers.

RTP products have been widely applied in oil and gas field gathering pipelines (oil transportation/gas transportation/water injection/gas-liquid mixed transportation), sewage trunk and branch lines, shale gas/coalbed methane fracturing return fluid, and water supply pipelines. They are also extensively used in the fields of coal mine liquid transportation, salt chemical brine transportation, hot spring water transportation, and secondary networks of thermal pipelines. The domestic market share of oil and natural gas is over 30%.

By the end of 2023, the company had more than 10,000 kilometers of experience in manufacturing and installing RTP. As of June 2024, the company had completed the delivery of 1,000 kilometers of various specifications of RTP products both domestically and internationally.

Main core products include:

• Flexible composite high-pressure transportation pipes (for oil transportation, water injection, sewage)
• High barrier high-pressure gas transportation pipes (for high sulfur gas fields, oil and gas mixed transportation)
• Glass fiber tape-reinforced heat-resistant polyethylene composite continuous pipe (hot spring pipe)
• Glass fiber tape-reinforced polyethylene composite continuous pipe for water supply and drainage
• Continuous fiber-reinforced co-extruded wear-resistant layer composite continuous pipe
• Mining fiber-reinforced polyethylene liquid pipe
• High-pressure hydrogen transportation flexible composite continuous pipe
• Steel cord pre-impregnated tape-reinforced composite continuous pipe

Application fields:

Widely used in high-pressure water injection for oil and gas fields, single well gathering, trunk and branch pipelines, sewage transportation, salt brine pipelines, wear-resistant pipelines, and hot spring water transportation pipelines.

Quality Product Recommendations

Flexible Composite High-Pressure Conveyance Pipe

The composite pipe consists of a lining layer, reinforcement layer, and outer protective layer. The lining layer serves as the medium transmission layer, made by hot-melt extrusion molding of various polymers. The reinforcement layer is formed by circumferential winding of various fibers or fiber pre-impregnated tapes on the outer surface of the lining layer, primarily bearing the pressure-bearing capacity of the composite pipe. The outer protective layer is made by hot-melt extrusion molding of polymers to cover the reinforcement layer, mainly to protect the composite pipe from external impacts and various types of damage.

Structural Technology

RTP can be divided into two types based on the structural layer formation method: non-bonded composite pipes and bonded composite pipes.?????????? The body of a non-bonded composite pipe is made up of layered lining layers, reinforcement layers, and outer protective layers that are wrapped layer by layer, and may have relative displacement between the layers when deformed.

The body of a bonded composite pipe has a reinforcement layer that is integrated with adjacent layers to form a monolithic pipe wall structure through melting or bonding.

Lining Layer: Mechanical or physical properties, heat resistance, resistance to medium permeation, and medium compatibility;

Reinforcement Layer: Short-term/long-term load-bearing capacity, temperature load-bearing capacity;

Outer Protective Layer: Ability to withstand installation loads and usage environment (such as ultraviolet rays, wear, etc.).

Coilable Continuous Pipe Specifications: DN40mm-200mm;

Nominal Pressure: 2.5MPa-32MPa;

Large Diameter Fixed Length Composite Pipe Specifications: DN250mm-500mm; Nominal Pressure: 1.6MPa-6.4MPa

Temperature Series (Maximum Allowable Operating Temperature): 65°C/70°C/75°C/85°C/95°C/110°C

Connection Methods: Metal Crimped Thread Connection, Flange Connection, Welded Joint Connection, Internal Expansion Full-Bore Joint Connection.

Design Reference Standards

• API 15S-2022: Coiled Reinforced Plastic Line Pipe (American Petroleum Institute)
• GB/T 38725.2-2020: Coilable Reinforced Plastic Pipe (National Standard of China)
• SY/T 6794-2018: Coilable Reinforced Plastic Line Pipe (Standard of the Petroleum and Natural Gas Industry)
• SY/T 6662.2-2020: Flexible Composite High-Pressure Conveyance Pipe (Standard of the Petroleum and Natural Gas Industry)
• SY/T 6662.5-2014: Reinforced Ultra-High Molecular Weight Continuous Composite Pipe (Standard of the Petroleum and Natural Gas Industry)
• Q/SY-TGRC 150-2019: Continuous Fiber Reinforced Thermoplastic Adhesive Composite Pipe (Enterprise Standard of the Research Institute of CNPC Pipeline Materials)
• SY/T 6769.5-2016: Specifications for Design, Construction, and Acceptance of Non-Metallic Pipelines (Part 5: Fiber Reinforced Thermoplastic Composite Continuous Pipes, Standard of the Petroleum and Natural Gas Industry)
• T/CPSI 01303-2023: Steel Wire Pre-Impregnated Tape Reinforced Polyethylene Adhesive Composite Pipe for the Petroleum and Natural Gas Industry

Main Applications

Main Applications Primarily used in oil and gas field gathering and transportation pipelines, high-pressure ethanol injection pipelines, high-pressure water injection pipelines, sewage transportation pipelines, acidic oil and gas field gathering pipelines (for oil, gas, and water transportation), shale gas centralized water supply pipelines, fracturing return fluid recovery and utilization pipelines, coalbed methane transportation, coal mine water supply and drainage, brine transportation, chemical pipelines, and hot spring water transportation, among other fields.

Product Features (Performance Advantages)

• Non-metallic pipe body, overall corrosion resistance, suitable for various corrosive environments;
• High pressure resistance, with a maximum working pressure of 32MPa and a maximum burst strength of >100MPa;
• Low thermal conductivity coefficient, only 1/300 of that of steel pipes;
• Wide temperature range: -40°C to 110°C; Low friction, anti-scaling, good hydraulic properties, and strong conveying capacity;
• Good flexibility, impact resistance, and crack resistance under pressure;
• Light weight, can be coiled, convenient for transportation; Single length can reach up to kilometers, fewer joints, and higher reliability;
• Quick installation and low maintenance;
• Long service life, reusable, and cost-effective.

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