In the process of oil and gas field exploration, drilling and extraction, it is necessary to use a large number of drill pipes, oil casing and high-temperature and high-pressure tubings, and the corrosive environment and medium they come into contact with are mainly complex media including drilling fluids, outputs from oil and gas wells, etc., and corrosion types are mainly hydrogen sulfide, carbon dioxide, dissolved oxygen, and sulfate-reducing bacteria SRB, etc., which make the corrosive environment and corrosive medium much more complex and harsh than that of long-distance transportation pipelines, making the problems of safety of working conditions, corrosion, waxing and fouling of petroleum-specific pipes very prominent. Such corrosive environment and corrosive medium are much more complicated and harsh than long-distance pipeline, which makes the working conditions of oil special-purpose pipe very prominent in terms of safety, corrosion, waxing and scaling.
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TC-H-7200N |
Less than or equal to 240 degree |
Primer（Liquid +Topcoat fusion bond epoxy |
250-500um |
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TC-H-7180N |
Less than or equal to 160 degree |
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TC-H-7150N |
Less than or equal to 125 degree |
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TC-H-7130N |
Less than or equal to 130 degree |
TC-H-7130N |
350-650um |
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TC-H-7120N |
Less than or equal to 120 degree |
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TC-H-7110N |
Less than or equal to 110 degree |
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TC-H-7100N |
Less than or equal to 100 degree |
TC-H-7120N |
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TC-H-7090N |
Less than or equal to 90 degree |
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Tiangang Steel International Qatar Project (Dia. 339mm x 9.65mm) 130Km anti-corrosion inside the casing |
H-7130N |
2018 |
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The second phase of Tianjing Steel International Qatar Project (339mm dia. X 9.65mm) anti-corrosion inside casing 50Km |
H-7130N |
2020 |
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The Sudan project ф177.8 casing inner coating |
H-7180N |
2020 |
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The third phase of Tiangang Steel International Qatar Project (339mm dia. X 9.65mm) 47Km anti-corrosion inside the casing |
H-7130N |
2021 |
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CNOOC East Oilfield 5,000 tons tubing anti-corrosion and anti-wax |
H-7150N |
2022 |
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Changqing Oilfield 10000 tons tubing &casing internal anti-corrosion and anti-wax |
H-7200N H-7150N |
2022 |
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Shengli Oilfield 5,000 tons tubing internal anti-corrosion |
H-7110N |
2022 |
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Jiangsu Oilfield 3,500 tons tubing internal anti-corrosion |
H-7110N |
2022 |
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2800 tons tubing pipe anti-corrosion in Oman project |
H-7130N |
2022 |
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