Prevention technology of casing loss in Jurassic reservoir
Damage to oil well casing has become an important influencing factor for stable oilfield production,and will cause inestimable losses.In view of this problem,the current situation and causes of casing damage were studied and analyzed,and it was determined that the prevention and control of casing damaged wells should always focus on the princi-ple of"prevention first,combined with prevention and control",through the addition of cor-rosion inhibitors,matching downhole technology,and deepening the boreholes,solid parti-cle corrosion inhibitors are applied in four aspects to form an all-round prevention on the front end of the oil well and reduce the increase in casing damage to the well.Based on the three major elements of"production classification,benefit queuing,and wellbore in-tegrity",as well as the wellbore corrosion status and the adaptability of the treatment pro-cess,a casing damaged well treatment technology system with 3 categories and 6 items has been formed,which can reduce the inventory of casing damaged wells and improve produc-tion capacity recovery rate.
cause analysisprevention of casing damage wellcasing damage well treatment
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