Characteristic Analysis and Prevention Measures Research of Reducing Substances in the Injection System of Polymer Flooding
|School||Northeast University of Petroleum|
|Course||Petroleum and Natural Gas|
|Keywords||Polymer flooding Injection system Reducing substances Antiseptic|
Polymer solution flooding technology is an enhanced oil recovery techniques more mature , with the polymer flooding technology industry promotion , many of the technical issues and technical problems will therefore result . Found in the regular cleaning of polymer injection pump , there is a \bring a difficulty , to this end , to carry out the analysis and prevention measures of the physical characteristics of polymer flooding injection system restore , to improve the performance of the injection of the polymer solution . Polymer flooding within the injection system of the morphology and composition of the reducing substance is analyzed to determine the reducing substance is mainly composed of three kinds of substances , ie a substance is an organic substance , as a polyacrylamide, and the second substance is an inorganic substance , as iron, magnesium , calcium ion , a third substance in sulfate-reducing bacteria, iron bacteria , mainly fungi and metabolites . Yellowish brown viscous reducing substances formation mechanism , there is a range of system impact study found that reducing substances present in the polymer injection pump filter , when the polymer mother liquor to carry large amounts of sulfate -reducing bacteria to enter the filter , the result of channel filter becomes small , the flow rate slows , and thus adequate contact with the metal material of the filter , to produce large amounts of reducing substances . Inhibition reducing substances forming method to optimize the sterilization program , made ??good bactericidal effect , reducing the formation of reducing substances , to ensure the normal operation of the injection system . Will have a better understanding of the results of this study , and comprehensively improve the level of development of polymer flooding technology management to provide a reliable basis , with higher economic benefits .