System CO₂ Corrosion Science And Protection Technology Of Gathering In Jilin Oilfield

With the development of oil and gas field, CO2 corrosion problem has been to China’s many oil and gas fields caused huge losses, but with the continued development of oil and gas field, CO2 will be more and more serious corrosion. Corrosive medium, CO2 not only set of pipeline and equipment safety threat against the ground, equipment will be perforated, leak caused huge economic losses to the enterprise caused by corrosion, but also endanger the life and health and environmental safety, therefore, do a good job of corrosion control technology is crunch time. The control method of transmission system corrosion ground set include selection of anticorrosion materials, organic and inorganic coating, metal coating or layer, adding corrosion inhibitor etc.. The use of more research on corrosion inhibitor to control ground pipeline equipment, the effect is more obvious, but the disadvantage is the loss of large, short cycle, dosing device too much is not conducive to the safety in production, in gas wells is difficult to use, therefore, corrosion inhibitor still can not achieve the effective control of tubing corrosion purpose alone. Understanding the controlling factors and reliability of the coating, corrosion inhibitor, corrosion resistance of the ground pipeline equipment is not clear, to further enhance the understanding of new way of corrosion in oil and gas field under the condition of resistance is not clear, therefore, in order to ensure the safety and economy of the surface gathering system to study.In this paper, through the transmission system of CO2 corrosion science and protection technology of Jilin oilfield, CO2 corrosion mechanism understanding, to determine the system corrosion experiment condition of surface gathering, in-depth study of the impact factors of CO2 corrosion, according to the CO2 containing natural gas gathering system and CO2 displacing gathering and transportation system of anti-corrosion technology, using the experimental instrument the most advanced equipment, the metal material corrosion performance evaluation and performance evaluation of corrosion inhibitor is preferably, eventually forming CO2 flooding surface gathering line anti-corrosion technology system. The formation of corrosion monitoring / detecting technology of ground system. The study further promote and deepen the corrosion law of Jilin oilfield gathering system, route anti-corrosion technology, will be in the degree of corrosion mitigation pipeline, ground equipment, prolong the service life, reduce maintenance frequency equipment, reduce the loss caused by the shutdown, will have great application value to the production application, this technical study on demand and broad application prospects.