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白音查平凹陷西洼断裂发育具多期性，结合生排烃史分析：早期断层主要使油气封堵成藏、中期断层对油气具侧向封堵和纵向运移双重作用形式、晚期断层对油气封堵成藏不利、而继承性断层则成为油气发生纵向运移的主要通道。受这种断层控油特征制约，形成自生自储和下生上储两种油藏，富集程度前者优于后者，断层发育具有近洼早、远洼晚的特点，环凹“前排圈闭”具备形成富集的优越条件，由此决定近洼带圈闭是找油的主要目标区。
The development of Xiwa fault in Baiyin Chauping depression is multi-period. Combined with the history of hydrocarbon generation and expulsion: the early faults mainly occlude oil and gas reservoirs, and the mid-term faults have the dual role of lateral sealing and longitudinal migration of oil and gas. Late faults Oil and gas blocking the formation of adverse, and inherited faults have become the main channel for hydrocarbon migration occurs longitudinally. Constrained by the characteristics of this fault oil control, the formation of self-storage and subsurface storage of two kinds of reservoirs, the former is better than the latter enrichment, the fault has nearly early depression, Trap "has the superior conditions for the formation of enrichment, which determines the near depression depression is the main target area to find oil.