The Effect of Provenance Intersection on the Petroleum EnrichmentAn example from Chang6 member in Huaqing area of central Ordos basin

Abstract

Abstract: Through the seismic and geological researches of the provenance and rocks properties in Huaqing area in central Ordos basin, it s recognized that there exist two provenances in northeast (Yinshan) and southwest directions in this area. The former controls the distribution of Chang?6 deposit system of Huaqing area as a main source, and its source area’s metamorphic property and rapid accumulation allow he sandstone to be characterized by high content of feldspar and debris as well as low maturity of component and structure. The latter is ontrolled by Qinling?Qilian mountains fold belt, with relatively weak effect on this area as a secondary source, and characterized by quartz ontent higher than feldspar and high maturity of component and structure of sedimentary rocks. Such two provenance systems are intersected along Baima?Wujiao area in the southwestern Huaqing, which takes an important controlling part in distribution of the deposit system here the effect on hydrodynamic regime results in unconspicuous differentiation of sedimentary facies in this intersection area. Also, the ntersections between different sources and deposit system have obvious isolation and control effects on the hydrocarbon enrichment in this rea

CLC Number:

TE112.21

LIAO Jianbo1, LI Zhiyong1, LONG Liwen1, YANG Jinlong2, YANG Junxia2. The Effect of Provenance Intersection on the Petroleum EnrichmentAn example from Chang6 member in Huaqing area of central Ordos basin[J]. , 2013, 34(1): 1-1.

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The Effect of Provenance Intersection on the Petroleum EnrichmentAn example from Chang6 member in Huaqing area of central Ordos basin

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