塔里木盆地顺北超深断控缝洞型储层高精度预测技术与应用  

High-precision reservoir prediction technology and application of superdeep fault-controlled fracture-cave type in Shunbei,Tarim Basin

作　　者：王来源[1] 刘军[1] 龚伟[1] 卜旭强 黄诚[1] 李弘艳[1] WANG LaiYuan;LIU Jun;GONG Wei;BU XuQiang;HUANG Cheng;LI HongYan(Northwest Petroleum Company,Sinopec,rümqi 830011,China)

机构地区：[1]中国石化西北油田分公司勘探开发研究院,乌鲁木齐830011

出　　处：《地球物理学进展》2025年第1期199-207,共9页Progress in Geophysics

基　　金：中石化科研“超深层碳酸盐岩规模储集体预测与井轨迹设计技术”(P21071-3)资助.

摘　　要：受走滑断裂样式及断-储-藏耦合关系影响,碳酸盐岩超深断控储集体的同一条带非均质性强,不同条带平面差异性大.钻井揭示,断控储层类型主要为洞穴、孔洞、裂缝为主.断控规模储层主要发育在断面附近强能量异常区,因此,基于拉分段、平移段、挤压段等断裂地震响应差异性分析,和已钻井的优势属性优选,总结顺北地区不同断裂样式特征的超深断控储集体的综合属性刻画技术:裂缝类检测属性拉分段优选加强相干属性,平移段和挤压段优选能量相干梯度属性;内部洞穴类储层选择相控反演的阻抗属性进行分析.根据属性指示的储层特征差异指导钻井轨迹.具体的为顺北中部拉分段、挤压段断裂带宽度大,储层多为洞穴型,考虑水平位移因素,建议设计近垂直与断裂的大角度井斜水平井,而顺北东部平移段以裂缝-孔洞性储层为主,断裂带宽度窄,多建议与断裂斜交且多穿储层小角度井斜井轨迹.总的来说,本研究旨在精细刻画超深断控储集体的空间分布规律,利用已钻井数据优选地震属性,并综合断裂自身特征,从而有效地预测和指导钻井轨迹的设计.Influenced by the style of strike-slip fracture and the coupling relationship of fracture-reservoir-collection,the carbonate ultra-deep fracture-controlled reservoirs have strong non-homogeneity in the same zone,and the planar variability of different zones is large.The drilling wells reveal that the fracture-controlled reservoirs are mainly dominated by caves and cracks.The fracture-controlled scale reservoirs are mainly developed in the strong energy anomaly zone near the fracture plane.Therefore,based on the analysis of the difference in seismic response of fractures such as pulling section,translational section,and extrusion section,and the advantageous attribute preference of the drilled wells,we conclude the comprehensive attribute portrayal techniques for different types of ultra-deep fracture-controlled reservoirs in the Shunbei area.Pull segment optimization significantly improves coherence properties.Coherent energy gradient properties are preferably utilized in the translation and extrusion sections.The impedance properties of internal cavernous reservoirs are meticulously analyzed through the employment of phase-controlled inversion.In turn,the drilling trajectory is guided according to the differences in fracture characteristics,specifically:the width of fracture zones in the pulling section and extrusion section is large,and the reservoirs are mostly pore-type,so it is recommended to design horizontal wells,while the translational section is dominated by fractured reservoirs,so it is mostly recommended to design small-angle well trajectories.Overall,this study is based on the fine delineation of the spatial distribution law of ultra-deep fracture-controlled reservoirs,the use of drilled wells,the preferred seismic attributes,and according to the characteristics of the fracture itself,a comprehensive guide to predicting the drilling trajectories.

关 键 词：走滑断裂 断控储集体 储层预测 轨迹设计 顺北油田 

分 类 号：P631[天文地球—地质矿产勘探]