Research and application of MRC technology for offshore strong water drive sandstone reservoirs
In response to the problems of poor quality of underground remaining potential,design limitations of surface platform well slots and trajectories,and multiple wells producing sand during the development of P oilfield in the eastern South China Sea to the later stage of dual high development,efficient development is achieved through innovative application of MRC(Maximum Contact of Reservoir)technology.Based on the progress of existing MRC technology and the difficulties in its application in P oilfield,three key technologies have been innovatively formed:four types of low oil column MRC modes,integrated reservoir description and LWD,and integrated water-controlling and sand-preventing in unconsolidated sandstone with heavy oil.After the application of MRC technology in 7 wells of P oilfield,a total of 391 tons of oil were initially increased per day,with a water-cut decrease of 14.2%.Currently,the cumulative increase in oil is 110,000 tons,and it is expected to increase the recoverable capacity by 283,000 tons.Compared with conventional infill wells,one well can save more than 10 million Yuan.
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