With the continuous development of China's social economy, the demand for natural resources is also increasing day by day. As an important guarantee energy for China’s economic development, China’s petrochemical...With the continuous development of China's social economy, the demand for natural resources is also increasing day by day. As an important guarantee energy for China’s economic development, China’s petrochemical industry is also developing with the progress of society. Today, China’s petrochemical industry has gradually stepped into the forefront of the world. As a non renewable resource, oil is an important resource formed by the geological process of the earth for thousands of years. Nowadays, the increasing demand for oil resources in the international community has led to the depletion of oil resources, and the oil exploitation project has gradually become difficult and complex. Therefore, under the social environment of shortage of oil resources, effective measures must be taken to comprehensively improve the oilfield production through the annulus liquid production profile logging technology, so as to ensure the oilfield production efficiency. This paper will comb and analyze the application of annulus liquid production profile logging in the oilfield.展开更多
The corrosion and passive behavior of HP-13Cr stainless steel(HP-13Cr SS)in formate annulus protection fluid was investigated.HP-13Cr SS exhibited good passive behavior in clean formate annulus protection fluid,which ...The corrosion and passive behavior of HP-13Cr stainless steel(HP-13Cr SS)in formate annulus protection fluid was investigated.HP-13Cr SS exhibited good passive behavior in clean formate annulus protection fluid,which was attributed to a thinner and more dense passive film mainly composed of Cr_(2)O_(3).In the formation water solution,the passive film was composed of metastable Cr(OH)3,which was explained by the isoelectric point theory,resulting in the deterioration of the passive behavior of HP-13Cr SS.When the formation water penetrated the formate annulus protection fluid,a large number of loose FeCO_(3)particles formed in the corrosion scales,thus HP-13Cr SS suffered severe corrosion.Therefore,avoiding formation water penetrating the formate annulus protection fluid is conducive to improving the service life of HP-13Cr SS oil tubes in extremely aggressive environment.展开更多
文摘With the continuous development of China's social economy, the demand for natural resources is also increasing day by day. As an important guarantee energy for China’s economic development, China’s petrochemical industry is also developing with the progress of society. Today, China’s petrochemical industry has gradually stepped into the forefront of the world. As a non renewable resource, oil is an important resource formed by the geological process of the earth for thousands of years. Nowadays, the increasing demand for oil resources in the international community has led to the depletion of oil resources, and the oil exploitation project has gradually become difficult and complex. Therefore, under the social environment of shortage of oil resources, effective measures must be taken to comprehensively improve the oilfield production through the annulus liquid production profile logging technology, so as to ensure the oilfield production efficiency. This paper will comb and analyze the application of annulus liquid production profile logging in the oilfield.
基金supported by the Youth Program of the National Natural Science Foundation of China(No.52001061)the Young Elite Scientist Sponsorship Program Cast(No.YESS20200139)the Fundamental Research Funds for the Central Universities(No.N2202016).
文摘The corrosion and passive behavior of HP-13Cr stainless steel(HP-13Cr SS)in formate annulus protection fluid was investigated.HP-13Cr SS exhibited good passive behavior in clean formate annulus protection fluid,which was attributed to a thinner and more dense passive film mainly composed of Cr_(2)O_(3).In the formation water solution,the passive film was composed of metastable Cr(OH)3,which was explained by the isoelectric point theory,resulting in the deterioration of the passive behavior of HP-13Cr SS.When the formation water penetrated the formate annulus protection fluid,a large number of loose FeCO_(3)particles formed in the corrosion scales,thus HP-13Cr SS suffered severe corrosion.Therefore,avoiding formation water penetrating the formate annulus protection fluid is conducive to improving the service life of HP-13Cr SS oil tubes in extremely aggressive environment.
