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渤海湾盆地辽河坳陷锦310预探井钻前储集层质量预测

DOI: 10.7605/gdlxb.2011.05.005, PP. 509-516

Keywords: 钻前储集层质量预测,成岩作用,成岩模拟,低渗透储集层,辽河坳陷,渤海湾盆地

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Abstract:

为了在渤海湾盆地辽河坳陷锦310预探井钻探前预测锦1井区古近系沙二段储集层的质量,文中应用成岩作用数值模拟技术预测了该地区沙二段的成岩阶段,综合考虑成岩作用和沉积微相对储集层孔隙度的影响,建立了孔隙度预测模型,在钻前预测了沙二段的孔隙度。结果表明,锦1井区沙二段储集层在大部分地区处于中成岩阶段A期,次生孔隙发育;在填隙物含量高达16.13%的条件下,锦310井钻前预测孔隙度和钻后实测孔隙度的绝对误差只有1.3%。由此可见,综合考虑成岩作用和沉积相的钻前储集层质量预测方法,可应用于预探井的勘探部署。

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