Steam drive pilot test in Block Qi40 has achieved ideal development result, but the sweep efficiency is low and stable production period is short because of reservoir heterogeneity.

齐40块蒸汽驱先导试验取得了较为理想的开发效果，但由于受油藏非均质性的影响，蒸汽驱过程中出现了蒸汽波及效率低、稳产时间短等现象。

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Basing on detailed test data of the Damingtun depression, the main charging pathway of two petroleum system is reconstructed by means of hydrocarbon compositional heterogeneity.

运用油气组成非均质性，以大民屯凹陷丰富详实的分析测试资料为基础，“反演”了两大油气系统的油气主运聚方向。

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A model of real microscopic sandstone real is used to conduct a water drive displacement test, study the effect of pore structural heterogeneity on residual oil distribution.

用真实砂岩微观模型进行微观水驱油试验，研究孔隙结构非均质性对剩余油分布的影响。

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