Research on cementing technology for adjustment wells in Daqing Oilfield
After years of adjustment and development,the origi-nal underground environment of Daqing Oilfield has changed due to factors such as formation heterogeneity,well network re-finement,and dynamic injection production development.In re-sponse to the two challenges of oil water invasion in abnormally high-pressure layers and poor bonding quality at high permea-bility and low-pressure layers in Daqing Oilfield,guided by the principle of geology first and one well with one strategy,techni-cal breakthroughs in drilling geology,cement slurry system,ce-menting tools,etc.have been carried out,and supporting tech-nologies for adjusting well cementing in water injection and oil production fields have been formed.The on-site application of this technology has achieved good results,providing wellbore support for the construction of crude oil production capacity in Daqing Oilfield.
water injection productionadjustment wellgeologi-cal predictioncementing technology
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