|
|
 |
| Tungsten alloy plating to eliminate petroleum machinery indeed a very significant " | | Posted by：admin Published：2013/3/1 14:22:35 Click：2920 | Oilfield equipment corrosion "and" wear and tear "is known as the two world-class problems, about 29,200 wells across the country there are different degrees of corrosion and wear, With the growth of the oil and gas field development in China of years and the equipment useful life is deteriorating. In addition, high-sulfur crude oil imports to a substantial increase in refining equipment corrosion problems are also increasingly prominent. Even more frightening is that the adverse effects due to corrosion and wear and tear on the equipment safe and stable operation will become increasingly prominent.
Several commonly used in the plating process, the chromium plating wear-resistant, low-cost, but the serious environmental pollution, and the impatience of chloride ion corrosion; chemical nickel-phosphorus plating process not corrosion wear-resistant, high cost; thermal spraying process the technical indicators are good, but the high cost of production is difficult to promote a wide range.
According to China's well-known youth chemical expert, University of California postdoctoral, Hunan University, Ph.D., Professor He Fengjiao pointed out: "part failure caused by wear, corrosion studies have shown that these failures mostly occur in the surface of the material means a material surface treatment, surface engineering technology to improve the surface properties of the material, will effectively extend the life of parts, surface engineering has an important position in the petroleum and petrochemical industry. "
"Judging from the current situation, only tungsten alloy plating technology performance to a substantial increase in the hardness and wear resistance and chrome plating considerable, but the acid and alkali, low production costs and plating solution can be configured according to the specific operating conditions of oil underground, the implementation of the plating process, to meet its operating requirements. now, under the same environment, the use of tungsten alloy plating equipment service life is several times higher. "The Professor He Fengjiao explained that tungsten alloy plating, "The reason why performance so superior, because the coating of tungsten alloy plating from a new alloy material, plated amorphous structure, different heat treatment processes into amorphous inclusions nanocrystals or nanocrystalline structure, by the departments of State authority, the alloy has good abrasion resistance, good acid, alkali, salt spray resistance and excellent high temperature oxidation resistance, and the base material good combination. "
Tungsten alloy electroplating process in one fell swoop to solve the two problems of corrosion and abrasion According to statistics, China's annual oil well pipes more than 300 million tons, while the high-tech, high value-added The high-end OCTG, such as anti-of H2S, Cl-, anti-corrosion tubing is almost entirely dependent on imports to 600,000 tons annually imports tubing, worth more than 30 billion yuan. The achievements already made eight patent licenses, won the first prize in the National Machinery Industry Science and Technology Award, a national key new product certificate. Leaving Professor He pleased listed as national key environmental protection practical technology (A), the State Environmental Protection Administration of the technology as the state encourages the development of resource conservation and comprehensive utilization and environmental protection technology.
Tungsten alloy plating process in the application of petroleum machinery industry, not only can solve the pollution problems caused by the plating chromium, more importantly, can improve China's petroleum machinery manufacturing various class Critical Components product performance to the entire oil machinery manufacturing change, and promote the overall upgrading of the industrial chain, in particular, anti-corrosion, anti-the sulfur wells arm and sulfur resistant drill pipe can be applied to the H2S content of greater than or equal to 150,000 PPM, CL-content of 150 g / L extreme corrosive environments, so that our international leading level in the industry to address the current situation of China's high-end drilling equipment dependent on foreign imports of equipment.
According to the introduction, by the Hunan Na Feier New Material Technology Co., Ltd. successfully developed tungsten alloy anticorrosion tubing has passed sulfide stress corrosion cracking (SSCC) performance test hydrogen sulfide corrosion resistance, resistance to chloride ion corrosion, can replace imported oil well pipes, the price only inlet tube 60%. The technology has been CNOOC, Zhongyuan Oilfield, Shengli Oilfield domestic oilfield received.
Na Feier tungsten alloy plating process jointly developed by Hunan University and Na Feier new material on the oil pipe you can solve this problem effectively. Hui said, "The Hunan University and Na Feier new materials jointly developed high anti-sulfur oil well pipe has been tested and performance indicators have reached the foreign sandevik and Sumitomo, NKK nickel-based alloy tube level, can be applied to the H2S content greater than or equal to 150,000 ppm, CL-content of 130 g / L extreme corrosive environments, and reached international leading level in the industry in China "
After more than ten years of research and testing, tungsten alloy plating process in sucker rod, sucker rod coupling, sucker rod light rod, oil well pump pump barrel and plunger, tubing, tubing couplings, screw drill screw eight petroleum machinery applications plated tungsten alloy corrosion resistant petroleum machinery in the Daqing Oilfield, Shengli Oilfield, Karamay Oilfield, Tarim Oilfield, Qinghai Oilfield, Changqing Oilfield, Zhongyuan Oilfield, Dagang Oilfield, Jilin Oilfield, Iran oilfield the 10 oilfield applications, the effect of feedback.
China's leading oil equipment specialist equipment are of China Petroleum Exploration and Development Research Institute, Professor Wu Zezhong own contact with tungsten alloy plating process starting in 2006, that this process is worthy of the high-tech, with good corrosion resistant properties, no pollution, clean technology, cost and chrome close, not only in the field of petroleum machinery and application value in the field of surface treatment.
According to Professor Wu, oil field in Iran, Dezhou United Petroleum Machinery Co., Ltd. production of 5LZ89X7 of screw drill the rotor, the original traditional chromium plating process 2005 Iranian oilfields saturated brine mud 40 hours, the coating off, switch to the tungsten alloy plating process to work 310 hours under the same working conditions, coating intact; Tarim Oilfield, one block H2S content 80000ppm, the ordinary sucker rod using a January fracture downhole sucker rod August 2010 to December still work properly plated tungsten alloy; in Qinghai Oilfield Oil Production Plant wells in November 2007 test plated tungsten alloy tubing, remove the June 22, 2008, non-corrosive, scaling, while the ordinary severe pipeline corrosion.
Wu Tse teach evaluation, tungsten alloy plating sword easy road, using the method of surface modification of high-strength steel production in the global high-end anti-corrosion resistance to sulfur petroleum steel pipe market new oil well pipes can fully replace the dual-phase steels and nickel-based alloy steel, not only lower costs, and better mechanical properties and anti-corrosion wear resistance.
| Previous：Positive shot blasting surface treatment bolted plates advantages
Next：Copper and aluminum composite busbar Application Technology |   |
|
|
HOME
Please select the language you want： 
