Study on Reasonable Formation Pressure and Injection Production Ratio in M Oilfield
A reasonable injection production ratio is an important basis for achieving rea-sonable formation pressure in the current pressure system within a specified time,in order to meet the abundant production capacity of the oilfield and ensure economic benefits.Based on the injection production relationship analysis method,this article establishes a mathematical calculation model for reasonable formation pressure,which is used as the pressure recovery target.Different pressure recovery rates are selected,and the relationship between injection production ratio and pressure recovery rate is established following the principle of material balance,Conduct a reasonable injection production ratio study.Based on calculations for M oilfield,the reasonable formation pressure for layer 1 is 11.39 MPa,and the development should be carried out with an injection production ratio of 0.9307;The reasonable formation pressure for layer 2 is 11.84 MPa,and water injection development should be carried out with an injec-tion production ratio of 1.1101;The reasonable formation pressure for layer 3 is 13.91 MPa,and water injection development should be carried out with an injection production ratio of 0.8522.The results show that this study has certain guiding significance and practical value for the recovery of reasonable formation pressure.
material balance principlereasonable formation pressurereasonable injection production ratiooilfield development
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