【摘要】 塔中地区志留系地质条件复杂,目的层段砂层薄,横向连续性差,地质建模困难,利用常规反演方法难以获得精确的反演结果。根据高分辨率层序地层理论,利用稀疏脉冲拟波阻抗反演技术在塔中地区进行了储层预测。结果表明,塔中地区志留系柯坪塔格组上段下沥青砂岩段砂体具有成片分布、连续性好和厚度大的特点;上沥青砂岩段砂体具有分块分布和厚度小的特点。约束稀疏脉冲反演技术对于塔中地区志留系薄砂层的进一步勘探开发和降低开发风险有一定的指导意义。更多还原

【Abstract】 Because of complex geological condition,thin sand beds and poor continuity in the target intervals of Silurian formation in Tazhong area,it is difficult to build geological model and obtain accurate inversion result by normal invertion method.Based on the theory of high resolution sequence stratigraphy,the reservoirs in Tazhong area was predicted using the technology of constrained sparse pulse inversion.The sand bodies in lower argulite sub-member of upper Kepingtage Formation in Silurian in Tazhong area has the features of flaky distribution,good continuity and big thickness.And the sand bodies in upper argulity sub-member has the features of blocking distribution and small thickness.The constrained sparse pulse inversion has certain guiding significance on further exploration and production,and also on development risk reducing for the thin Silurian sand beds in Tazhong area.更多还原