Hydraulic Shock,Chemistry Compound Broken Down Technology Used In Dagang Oil Field Low-particular Low Permeability Reservoir

As to Dagang oil field low-particular low permeability reservoir, because of it reservoir nature poorly,diversification heavily,implantation pressure highly,waterflooding in low level, so the correspond well yield scaling down seriously,effect of exploitation badly,economic results in low level。When we use general stimulate measures in Dagang oil field low-particular low permeability reservoir, these can not resolve difficulty effectively in oil development, such as it can not pour water into reservoir in high pressure and the routine acidizing is useless. For hydraulic shock fracturing can immune control of crustal stress and the time of it boosting is in second level, So it can cause couple of pulsating wave and deep penetrating split randomly in the formation, achieving longer broken down radius than acidizing single。hydraulic shock,chemistry compound broken down technology also have well selectivity,availability and simply, all these can resolve defect of general stimulate measure effectively.The article have recognized reservoir injury form through survey and study information of Dagang oil field low-particular low permeability reservoir nature and block up element, also have date of laboratory experiment supplementary。Based on character of acidizing fluid and laboratory experiment we have optimized one chemistry water block remover which is suit for Dagang oil field low-particular low permeability reservoir。Optimize hydraulic shock producer designing based on predecessors research, research the impact extrusion mechanism of hydraulic shock producer thoroughly, utilized liquid impulsive force pounding position preprocessing cause split, then use chemicals dissolving remnant and cementing material of split, so the split can not closed completely even if prop pant nonexistence, thereby it can enhance immediate vicinity of wellbore flow conductivity, we design one technological process which possess low cost,high effectiveness,concise and intensify。At last when hydraulic shock,chemistry compound broken down technology was used in Dagang oil field low-particular low permeability reservoir test well and acquired actual effects been demonstrated viability,rationality and effectiveness。...