【摘要】：通過露頭區(qū)解剖、三維地震解釋、測井曲線識別、巖心觀察和薄片鑒定,對松遼盆地杏北油田葡萄花油層砂泥互層地層斷裂帶內部結構特征進行研究;建立基于測井曲線綜合響應的斷層破碎帶厚度預測模型,進而探討斷裂帶結構特征對斷層邊部剩余油富集和開采的控制作用。結果表明:斷裂帶由斷層核和破碎帶兩部分組成,其中斷層核發(fā)育泥巖涂抹的分段生長結構,破碎帶發(fā)育破碎、滑動和變形3種特征;斷層垂向上在葡Ⅰ4小層發(fā)生分段,造成系統(tǒng)取心井鉆遇3個斷點,其中斷點1發(fā)育砂巖變形帶的斷層端部破碎帶,斷點2發(fā)育泥巖涂抹的主斷層核,斷點3發(fā)育泥質角礫巖和方解石充填泥巖裂縫的次斷層核;斷層面兩側隨著距斷層核距離增加破碎帶微構造密度和碳酸鹽含量逐漸降低。
[Abstract]:Based on the anatomy of outcrop area, 3D seismic interpretation, logging curve identification, core observation and thin section identification, the internal structural characteristics of sandstone and mud interlayer fault zone in Putaohua reservoir of Songliao Basin are studied. A prediction model of fault fracture zone thickness based on comprehensive response of logging curves is established, and the control effect of fault zone structure on residual oil enrichment and recovery at fault edge is discussed. The results show that the fault zone is composed of two parts: fault nucleus and fracture zone, in which the fault nucleus develops the segmental growth structure of mudstone smear, the fracture zone develops fragmentation, sliding and deformation, and the fault is divided vertically in the Portuguese 鈪，

本文編號：2139572