Accreditation committee experts visit the laboratory On April 28th, organized by the Department of Science and Technology of Guangdong Province, the Guangzhou Branch of the Chinese Academy of Sciences presided over the scientific and technological achievement appraisal meeting of the project “Key Materials Technology and Application of Biofuels Prepared by High Concentration Anaerobic Fermentation of Mixed Raw Materials†undertaken by Guangzhou Energy Research Institute of Chinese Academy of Sciences. The appraisal committee consists of seven experts from universities and research institutes across the country. Professor Liu Yingshu serves as director of the appraisal committee, Professor Dong Renjie and researcher Ruan Chaoping serve as deputy directors. Deputy Director Zhou Xiaoyun of the Guangzhou Branch of the Chinese Academy of Sciences, Wu Chuangzhi, Director of the Guangzhou Energy Institute, Jiang Yang, Deputy Director of the Science and Technology Department, and project team members attended the appraisal meeting. The meeting was chaired by Zhou Xiaoyun. The appraisal committee heard the project work summary and research report of the project leader Yuan Zhenhong, examined the site, and conducted questions and discussions. The expert group unanimously considered that the project submission materials were complete and met the requirements for identification. The anaerobic fermentation basic database and raw material compatibility equations for more than 140 kinds of raw materials were constructed, and the straw pretreatment technology, domestic waste water selection technology and high-concentration anaerobic fermentation of mixed raw materials were invented. Technology, developed key equipment such as household garbage water selection equipment, high-concentration raw material feeding device and high-concentration mixed raw material anaerobic reactor, developed a high-concentration anaerobic fermentation process of mixed raw materials, and achieved high-efficiency, continuous and stable operation, and significantly improved Biogas production rate of mixed raw materials; construction of a high-concentration continuous fermentation demonstration project with a scale of 500m3 of domestic waste water selected for enrichment of fermentation raw materials and promotion and application. The project has obvious innovations in raw material pretreatment, nutritional compatibility and high-anaerobic fermentation to prepare biogas process and equipment. It has reached the international advanced level, passed the results appraisal, and proposed to further increase technology promotion and application.
Drill
pipe
Hejian Deris is a
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staff and factory own laboratory
1) Drill pipe Adopt tp friction welding .
2) International first-class raw materials and advanced heat-treatmeat process fully reflects the high
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3) procudtion quality and standards meet and exceed the comprehensive requirements of API 5DP ,API 7K,
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4) Smooth and long upset transition of pipe body and solid hard banding increas the sevice long and safety.
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special customized products.
Drill pipe usage notes:
1. New drill
pipe should be pasted thread oil before connection
2. Make up
and break at least 3 times before drilling
3. Hard
bending and plastic coating can be processed according to clients` special
requirements
SIZE
(inch)
Weight
(PPF)
length
Outside
Diameter
Calculated
Weight Wpe
Single
weight
Wall
Thichness
Grade
ommonly used
type buckle
Upset Ends,for
weld on Tool joints
m
In mm
Lb/ft kg/m
kg/each
In mm
2 3/8
6.65
9.5
2.375 60.3
6.27 9.33
114
0.28 7.11
E,X,G,S
NC26
EU
2 7/8
10.40
9.5
2.875 73.0
9.72 14.47
180
0.362 9.19
E,X,G,S
NC31
EU or IU
3 1/2
9.50
9.5
3.500 88.9
8.81 13.12
0.254 6.45
E
NC38
IU or EU
3 1/2
13.30
9.5
3.500 88.9
12.32 18.34
220
0.368 9.35
E,X,G,S
NC38
IU or EU
3 1/2
15.50
9.5
3.500 88.9
14.64 21.79
0.499 11.4
E
NC38
IU or EU
3 1/2
15.50
9.5
3.500 88.9
14.64 21.79
0.499 11.40
X,G,S
NC38
EU or IEU
4
14.00
9.5
4.000 101.6
12.95 19.27
0.330 8.38
E,X,G,S
IU or EU
4 1/2
13.75
9.5
4.500 114.3
12.25 18.23
0.271 6.88
E
IU or EU
4 1/2
16.60
9.5
4.500 114.3
15.00 22.32
270
0.337 8.56
E,X,G,S
NC46
IU or EU
4 1/2
20.00
9.5
4.500 114.3
18.71 27.84
0.430 10.92
E,X,G,S
NC46
EU or IU
5
16.25
9.5
5.000 127.0
14.88 22.16
0.296 7.52
X,G,S
IU
5
19.50
9.5
5.000 127.0
17.95 26.70
330
0.362 9.19
E
NC50
IEU
5
19.50
9.5
5.000 127.0
17.95 26.70
330
0.362 9.19
X,G,S
NC50
EU or IU
5
25.60
9.5
5.000 127.0
24.05 35.80
0.500 12.70
E
IEU
5
25.60
9.5
5.00 127.0
24.05 35.80
330
0.500 12.70
X,G,S
EU or IU
5 1/2
21.9
9.5
5.500 139.7
19.83 29.52
0.361 9.17
E,X,G,S
IEU
5 1/2
24.70
9.5
5.500 139.7
22.56 33.57
0.41 10.54
E,X,G,S
IEU
6 5/8
25.20
9.5
6.625 168.3
22.21 33.04
0.330 8.38
E,X,G,S
IEU
6 5/8
27.72
9.5
6.625 168.3
24.24 36.06
0.362 9.19
E,X,G,S
IEU
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