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通过岩心、薄片、粒度、测井及地震资料综合分析,在霸县凹陷鄚州—高家堡地区沙三段首次发现了滑塌浊积岩,并对其沉积特征进行了研究。结果表明,研究区滑塌浊积岩的粒度较细,成分成熟度和结构成熟度都较低,结构和构造均反映了沉积物滑塌再沉积的特点,沉积单元从下到上可概括为鲍马序列:平行层理段(B)、流水沙纹层理段(C)、水平层理段(D)和泥岩段(E),常发育BCDE,BCD,BCE和DE型组合序列。霸县凹陷鄚州—高家堡地区沙三段滑塌浊积岩是三角洲前缘砂体在同沉积断层频繁活动和水体振荡作用下滑塌形成的,具备良好的生储盖组合和较大的油气勘探潜力。
Based on the comprehensive analysis of core, thin slice, grain size, well logging and seismic data, slump turbidite was first discovered in Sha 3 Member of Danzhou-Gaojiapu area in Baxian Depression, and its sedimentary characteristics were studied. The results show that the turbidity sedimentary rocks in the study area are fine in grain size, low in maturity and structural maturity, and both structure and structure reflect the characteristics of sediment collapse and redeposition. Sedimentary units can be summarized as The Bowman sequence includes the BCD, BCD, BCE and DE sequences in the parallel bedding section (B), the flowing sandy bedding section (C), the horizontal bedding section (D) and the mudstone section (E). The slump turbidites in the third member of Shahejie Formation in Danzhou-Gaojiapu area of Baxian sag are formed by the collapsing of delta front sand bodies under the frequent activities of sedimentary facies and the oscillation of water bodies. They are characterized by good reservoir-cap assemblages and large Potential for oil and gas exploration.