Researches on Daqing Oilfield Scale Analysis and Removal Method

Abstract:

The scale formation in the oilfield has been a serious problem during the oil recovery process, which influences the oil recovery efficiency tremendously. The composition and surface morphology of the scale obtained from the oil well of Daqing Oilfield of China was analyzed by XRF, XRD and SEM. The results show that, the main compositions of the scale are crystal CaCO3 and amorphous SiO2. Different organic and inorganic acid was used in the scale removal experiments. It’s the inorganic acid that takes the most important part in the scale removal process.

• Periodical: Advanced Materials Research (Volumes 524-527)
• Pages: 1872-1875
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.524-527.1872
• Online since: May 2012
• Authors: Xue Qin Wang, Ling Hui Meng, Hong Wei Zhu, Li Liu, Yu Dong Huang
• Keywords: Analysis, Daqing Oilfield, Oilfield Scale, Scale Removal

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