Abstract
AbstractThe scale development of horizontal wells in a low permeability oilfield has entered the stage of high water cut development. Affected by the physical property difference of horizontal well segments and the imbalance of injection production status, the horizontal well segments are produced unevenly and some horizontal well segments are flooded. Therefore, it is necessary to clarify the influencing factors and degree of interference between different horizontal well segments. By establishing a theoretical model and comparing the production changes of different horizontal well segments, the influencing factors and influence degree of inter section interference are studied. The physical property difference has a great influence, the injection production distance and water injection intensity take the second place, and the interval has a small influence. It is proposed that the interference between horizontal well segments can be reduced by means of sectional measures, conversion of oil well to water injection well, cyclic water injection and optimization of reasonable water injection intensity The analysis of interference between different horizontal well segments in low permeability reservoir provide the basis for fine potential tapping of horizontal well in the next step.KeywordsLow permeabilityHorizontal wellInterference between different horizontal well segmentsInfluence factor
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