Lining System is a superior solution for internal corrosion; GRE-lined OCTG is mainly applied to corrosive fluids with high corrosion potentials where conventional barrier type films (inhibitors, thin-film coatings) face a high failure probability.
PROLINER Lining System is superior solution for internal corrosion; GRE-lined OCTG is mainly applied to corrosive fluids with high corrosion potentials where conventional barrier type films (inhibitors, thin film coatings) face a high failure probability.
PROLINER Glass reinforced epoxy liners are inserted into bare steel pipes; in this con- figuration, where the annular space is filled with a special cement blend material, the inert properties of the GRE liner and the strength/mechanical durability of the metal case are exploited, high pH cement squeezed into the annulus between the liner and the outer pipe transmits hoop strength, forms a secondary corrosion defence and serves as a thermal insulator
• High hoop strength; unlike IPC, the low hoop strength of thermoplastics creates a
tendency towards liner collapse in CO2 injection service and gas-lifted production.
• Suitable for both API and Premium connection / Used and New OCTG
• No modification to the connection.
• Cost effective comparing to special alloys.
• No special handling is required.
• Reduced work over costs.
• Unlike steel tubing, no deterioration in the surface of GRE with aging.
• Decrease in the likelihood of leaks in surface flow-lines, less risk to the environment.
• Combination of GRE liner and cement grout works as a thermal insulator.
• Eliminates the need and cost of using paraffin inhibitors.
• Enhanced flow properties.
• Serves as a thermal insulator.
The chart illustrates nearly equivalent efficiency of flow through a string of PROLINER tubing compared to that of new bare tubing despite the minimal reduction in the ID As new tubing corrodes (Used Steel curve) the benefit of GRE lining becomes even more apparent.
Sour down-hole conditions containing H2S and CO2.
Disposal Wells.
Water Injector wells.
CO2 WAG.
Oil Producers.
Surface flow-lines.
Hazen Williams C factor: C=150 compared to 100 in new steel pipe and 80 in used steel pipe.
Absolute Roughness = 0.00021 inches
Operating Temperature +260 F.
Pressure: Up to pipe yield
PROLINER HT for higher temp applications is also available.