Research On Experimental Evaluation And Application Of Technology Of Paraffin Treatment And Control In Yushulin Oilfield

Based on investigation in situations of the technology of paraffin treatment and control home and abroad, through analysis of oil components and physical properties of 18 samples in Dong-12, Shu-103, Shang-12, Zhao-25 and Sheng-22, the main factors that influence normal production of oil well in Yushulin Oilfield are presented to be the problem of paraffin precipitation during the production process, and through experiment in lab, the effects of paraffin control on solid paraffin inhibitor, liquid paraffin inhibitor and pipe and string are evaluated.According to the experimental evaluation result mentioned above, connected with the features of Yushulin Oilfield, PR type solid paraffin inhibitor, D-2 type liquid paraffin inhibitor and FLG-1 type paraffin control pipe and string are applicated to Sheng-22, Shang-12 and Zhao-25 in Yushulin Oilfield, and the correspondent technologic measures for paraffin control are presented. The application result shows that PR type solid paraffin inhibitor, D-2 type liquid paraffin inhibitor, FLG-1 type paraffin control pipe and string, chosen through lab experimental evaluation, together with the correspondent technologic measures, can all satisfy the requirement for production of oil well in Yushulin Oilfield, and it is of great significance to production cost cutting and benefit enhancement for Oilfield economy.