Zobrazeno 1 - 10
of 46
pro vyhledávání: '"Zhen-zhong Fan"'
Publikováno v:
Acta Crystallographica Section E, Vol 66, Iss 1, Pp m10-m11 (2010)
In the title compound, {[Cu(C6H2N2O4)(C3H7NO)]·H2O}n, the Cu(II) atom is coordinated by an N,O-bidentate pyrazine-2,3-dicarboxylate (pzdc) dianion, two O atoms from two other pzdc anions and one O atom from the dimethlyformamide ligand, forming a di
Externí odkaz:
https://doaj.org/article/1d2cde00d50e4c919a4f4f43e71d7182
Publikováno v:
Acta Crystallographica Section E, Vol 66, Iss 1, Pp m80-m81 (2010)
In the title compound, [Ni(C8H3NO6)(C12H10N2)(H2O)]n, the NiII atom is octahedrally coordinated by two cis N atoms from two different 1,2-bis(4-pyridyl)ethylene (bpe) ligands, two O atoms from one chelating carboxyl group of the 5-nitroisophthalic ac
Externí odkaz:
https://doaj.org/article/13d08e4ac869456a9a37bada874d7cce
Publikováno v:
Key Engineering Materials. 904:39-46
The microstructure and mechanical properties of the 7085 ingot casting was tested by OM, SEM and EDS, the fatigue damage was observed in the driving test process, the temperature gradient distribution was adjusted observably by using the FEM simulati
Optimization and Field Test of a Chelating Acid System for Scaled Gas Wells in the Hechuan Gas Field
Autor:
Guohong Liu, Li Junliang, Nan Li, Wenhai Ma, Pingang Ma, Zhen-zhong Fan, Qiang Li, Qingwang Liu
Publikováno v:
Energies, Vol 14, Iss 7959, p 7959 (2021)
Energies; Volume 14; Issue 23; Pages: 7959
Energies; Volume 14; Issue 23; Pages: 7959
The Hechuan gas field is one of the tight gas reservoirs with the highest formation water salinity in China. The content of metal ions, such as calcium, magnesium, iron, and barium, is as high as 20 g/L. Severe scales in near-wellbore reservoir block
Publikováno v:
Springer Series in Geomechanics and Geoengineering ISBN: 9789811607622
Due to the severe winter climate conditions in northern China, gas wells and pipelines are at high risk of gas hydrate blockage. In order to ensure stable gas supply in winter, the required Methanol injection concentrations are as high as 30–60 wt%
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0dce47defffe03f063b56b847e49c3f7
https://doi.org/10.1007/978-981-16-0761-5_151
https://doi.org/10.1007/978-981-16-0761-5_151
Publikováno v:
Journal of the Chinese Chemical Society. 63:1007-1014
Methacrylated hyperbranched polyglycerol (HPG-MA) is successfully synthesized through transesterification by controlling the ratio of HPG to glycidyl methacrylate (GMA). The concentration of the dye or phase transporter, temperature, contact time, an
Publikováno v:
Advanced Materials Research. :53-58
With the decline of pouring temperature in the range of 750°C~675°C, solidification curve was shifted to left primitively, and then gradually turned to right. Temperature of concretion nucleation and binary eutectic reaction was increased after a r
Publikováno v:
Applied Mechanics and Materials. :311-314
The carbon dioxide corrosion on N80 steel was evaluated under the gas phase and the liquid phase. With the test temperature improved, the corrosion rate increases. Under the condition of gas phase, the corrosion peak is 0.2942mm/a when the temperatur
Publikováno v:
Applied Mechanics and Materials. :150-154
The carbon dioxide corrosion inhibitor IMC-1 was composed by caprylic acid amide polyoxyethylene ethers (n=4-5) and a small amount of the TX-10(5%). When the concentration was 200 mg/L, N80 steel corrosion rate was less than 0.125mm/a. With the CO2 p
Publikováno v:
Applied Mechanics and Materials. :146-149
Through the Suizhong 36-1 oilfield core acidification experiments, we studied the different acid systems on the dissolution rate of rock samples and determine the preferred suitable for different circumstances Suizhong 36-1 oilfield cuttings acid sys