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Mining and Brine


Traditionally, HOVOY has been a well-known GRE pipe manufacturer and supplier, which achieved by continuously product innovation, up to date techniques and professional in time services.


Market-oriented enterprise strategy made Hovoy being the top China GRE pipe manufacturer and since the very first case to deliver piping to overseas client.


Based on decades of experience ,HOVOY is ready to fulfil your requirements in many different application areas and climates all over the world. Whether your pipelines are in service in the harsh deserts of Africa, or the freezing cold in Siberia, HOVOY can offer a cost-effective solution to replace existing corroded conventional steel pipelines, or construct new pipeline projects.


Coal bed methane (CBM) or Coal Seam Gas (CSG) is gas which is created during the formation of coal and is trapped within a coal seam by formation water. CBM is chemically identical to other sources of gas, but is produced by non-conventional methods. CBM is generally more than 95% methane and is often marketed as being “green” as it contains no sulphur compounds such as hydrogen sulphide


Hovoy has developed a specific GRE pipe system to meet the requirement of CBM or CSG production, such as the CO2 ­and N­­2 injection tubing for ECBM production, production water drainage and transportation.

Unlike conventional gas, CBM which is found at depths up to 7,000m, CBM is typically found at depths of400m – 1,000m. That makes the GRE downhole casing and tubing applicable in this case as it’s not required extreme large axial strength.


HOVOY Glassfiber Reinforced Epoxy (GRE) pipeline systems - the cost effective alternative


Durable and corrosion resistant


HOVOY Glassfiber Reinforced Epoxy (GRE) pipe is inert to internal corrosion from chemicals, crude oil, residues, injection water and bacteria. Similarly it resists exterior corrosion even in aggressive environments. Cathodic protection is not required.


Lightweight - easy to install


HOVOY Glassfiber Reinforced Epoxy (GRE) pipeline systems are easy to install without the need of heavy equipment.


Reduced costs


The installation cost of Glassfiber Reinforced Epoxy (GRE) pipeline systems are typically 80% of the costs of carbon steel.


The resistance to corrosion and to UV light reduces the maintenance costs for both above-ground and buried pipelines.


The smooth internal surface reduces the head loss resulting in lower pump energy consumption.