ed hardy paris bag uknl rudi

,ed hardy paris
New structure and foreign technological development of high-strength sucker rod


3. Less sensitive to stress corrosion rod: rod according to the theory and practice for many years of experience,franklin marshall soldes, the company that the United States Alxel a 8OI1: hard surface hardened rod, the larger the sensitivity of stress corrosion, S-80-type high-strength sucker rod, the availability of a more reasonable hardenability,mbt chaussures paris, less sensitive to stress corrosion, safety, life expectancy is long. 4. S-80-type high-strength sucker rod corrosion resistance is good: S-80-type high-strength sucker rod has a high yield strength, work in low stress, but also has good corrosion resistance =, KD weak degree of high-level U.S. OilWell rod KD-class research and development company of high-strength sucker rod, oil shot with D-level description of high-strength, also has a K-class rod corrosion resistance. Especially for large loads and corrosive media wells with pumping operations. Also applies to the exploitation of heavy oil and oil condensate carry. 1. KD grade rod material chemical composition: C: 0.20 ~ 0.25; Mn: 0.60 ~ 0.90} P40.03 {S: d0.04; Si: 0.1,5 ~ 0. 30; Cr: 0.60 ~ 0.90 {Ni: 1.25% ~ 1.75; Mo: 0.20 ~ 0.30} Cu: 0.4 ~ 0.6. 2. KD grade rod material mechanical properties: yield strength> 620MPa; ultimate strength> 793MPa} elongation of 14 to 18; Reduction of 50 to 60} hardness HB227 ~ 247. Three EL grade high degree of rod weak U.S. OilWell company developed a high-strength sucker rod EL level, its carrying capacity by 20 than Class D sucker for deep, heavy oil, and large displacement pump for strong mining, with Use good safety and reliability. EL-class high-strength sucker rod material chemical composition is as follows: In June 1998, the new structure and foreign technological development of high-strength sucker rod 29C: 0.36t0.41; Mn; 0.60 ~ 0.90; P ≤ 0 .04; S: d0.04; Si: 0.15 ~ 0.30; Cr: 0.60 ~ 0.90; Ni; 1.25% ~ 1.75. Fourth, the 97-type high-strength sucker rod company developed the 97 U.S. Norris-type high-strength sucker rod, nickel-chromium-molybdenum steel,abercrombie paris, normalizing and tempering. For large loads and corrosive media, the deep well pumping. At present the maximum depth of 3962m. Stress has not been discovered over the destruction and stress corrosion damage and so on. Using very safe and reliable, with high strength and high life expectancy and so on. 1.97 High-strength sucker rod material chemical composition: C; 0.28 ~ 0.33; Mn: 0.80 ~ 1.00} P ≤ 0.035} S: <0.04; Si: 0.16 ~ O. 30; Cr: 0.80 ~ 1.00; Ni: 1.65 ~ 2.00; Mo: 0.20 ~ 0.30. 2.97 high strength sucker rod material mechanical properties: yield strength greater than 793MPa section shrinkage greater than 45; References (omitted) ultimate strength greater than 965MPa; elongation of greater than 14; hardness HB185 ~ 311. Received project period 1998-o5-04 article edit Liu Manjun plant 1. T1L / 1 . Book selection of the coiled tubing technology and research papers 43. Include: use of coiled tubing drilling, completion, logging, oil production, workover and coiled tubing equipment, performance testing and research, Coiled Tubing safe operation. Anthology covering contemporary coiled tubing technology, processes and equipment, reflecting the foreign coiled tubing technology and research level, the country engaged in coiled tubing technology and scientific research, design, manufacture and use of personnel is strong significance. Leading decision-makers on the field also has important reference value. Postage $ 6. Units and individuals are welcome to subscribe. Those who need it, please send money to the following address: Name: Mechanical and Electrical New Technology Company, Beijing, Springfield Bank: Beijing Institute of Urban Cooperative Bank Road Branch Account :20105061 - 75 Contact: Francis Chan LIU Hai-chun Tel: (O1O) 62O9486362094335 cash Book your money remitted to: Zip 100 724 Liupukang Beijing China Petroleum Material & Equipment Corporation of new technologies at the Francis Chan
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