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采收率和波及系数是油田开发的重要指标。根据对我国陆上油田各项指标的统计与分析 ,评价了这些油田采收率与波及系数。注水纯砂岩油田的平均采收率为 0 .355 ,非注水纯砂油田的平均采收率为 0 .2 2 6 ;地质储量在30 0 0 0× 1 0 4t以上的巨型砂岩油田的采收率为 0 .44 ;就注水纯砂岩油田而言 ,地质储量大于 1 0 0 0 0× 1 0 4t的 ,其最大波及系数为 0 .70 8,地质储量在 1 0 0 0 0× 1 0 4～ 50 0 0× 1 0 4t的 ,其最大波及系数为 0 .558;最大波及系数大于 0 .9的油田有王场、尕斯库勒和杏树岗。
Oil recovery and sweep factor are important indicators of oil field development. Based on the statistics and analysis of various indicators of onshore oilfields in China, the oil recovery and dispersion coefficients are evaluated. The average recovery of injected pure sandstone is 0.355, that of non-injected pure sand is 0.226, and the recovery of giant sandstone reservoirs with geological reserves above 30 000 × 10 4 t The rate is 0.44. For the pure sandstone injection waterfield, the maximum emissivity coefficient is 0.708 when the geological reserves are greater than 1 0 0 0 × 10 4 t, and the geological reserves are 1 0 0 0 0 × 10 4 ~ 50 × 0 × 104t, the maximum wave propagation coefficient is 0.558; and the maximum wave propagation coefficient is greater than 0.9, there are Wangchang, Gascule and Xingshugang.