Low Concentrations Of Research And Application Of High Temperature And Low Damage Fracturing Fluid System In Jilin

Fracturing fluid is an important and difficult to use one of the key reserves fracturing technology. Its performance is a lot of fracturing fluid fracturing success factors and construction costs of the most important factors. Fracturing fluid types and their performance on whether the formation of a sufficient size, there are cracks in sufficient conductivity and reducing the damage to the reservoir, the greatest degree of improvement is closely related to the stimulation effect. Difficult to use reserves fracturing fluid technology is fracturing fluid molecular theory, the combination of technology and fracturing fluid additives and fracturing fluid formulation system engineering technology. Because conventional plant gum fracturing fluid and polymer series presence of water insolubles residue content, severe low permeability oil reservoir damage and other defects, can not meet the needs of oil and gas development.Plants After hydroxypropylated guar gum can significantly reduce water insolubles and improve heat resistance to some extent, but the high residue content broken glue, especially a high temperature above 100 degrees oil and gas wells, in order to ensure fracturing fluid the temperature shear resistance properties, have to increase the concentration of thickening agent, thereby increasing the broken glue residue content of reservoir damage can not be ignored. This project combines many years of Jilin Oilfield fracturing technology and experience, through a large number of laboratory tests and field experiments to explore, to reduce the formation of a fracturing fluid reservoir damage, improve the adaptability and effectiveness of fracturing for the purpose of low concentrations of low damage high temperature fracturing fluid system, which not only ensures the viscoelastic fracturing fluid has significantly reduced the thickener concentration and fracturing fluid reservoir rocks breaking the glue residue on the damage, in Jilin oilfield widely used, and achieved good economic benefits.