塔河油田AT11井区低幅度构造圈闭的识别方法  

Recognition method for low-relief structural trap at AT11 well field of Tahe oilfield

作　　者：盛湘[1] 

机构地区：[1]石油化工管理干部学院,北京100012

出　　处：《石油物探》2009年第2期171-174,共4页Geophysical Prospecting For Petroleum

摘　　要：随着塔河油田三叠系油藏勘探和开发的深入,规模小、构造幅度低且被断层复杂化的油气藏所占比例越来越高,圈闭识别的难度逐渐加大,因此识别和落实低幅度背斜圈闭对三叠系油气藏勘探开发至关重要。针对此,开展了低幅度构造识别技术研究,形成了由地震资料层位精细标定、层位自动追踪对比、等时切片提取、相干断裂系统解释、精细速度分析、地震振幅属性提取与分析等技术构建的低幅度构造识别方法。将该方法应用于塔河油田阿克亚苏盐上地区,新发现了众多低幅度构造油气圈闭,扩大了阿克亚苏地区三叠系低幅度含油气圈闭群。在新落实的低幅度构造上部署的多口井均有油气发现。As the exploration and development of Territory reservoirs at Tahe oilfield,small-scale reservoirs with low-relief structures complicated by faults accounts more proportion,the recognition of traps becomes more difficult.Therefore,recognition and identification of low-relief anticlinal trap is important for the exploration and development of Territory reservoirs.Aiming at the problem,the study on low-relief structure recognition technology is carried out, and the technical series for recognizing low-relief structure is established. including seismic reflection horizon detailed calibration,horizon auto-tracing and contrast,iso-time slice extraction,fault system coherent interpretation,detailed velocity analysis,seismic amplitude extraction and analysis,etc.the method is applied on supra -salt structure at Akeyasu,Tahe oilfield,many low-relief structural hydrocarbon traps are discovered,which enlarges Territory low-relief hydrocarbon trap group at Akeyasu area.Many wells are drilled at the newly identified low-relief structures;oil/gas detection result is good at all wells.

关 键 词：塔河油田 低幅度构造圈闭 地震解释技术 

分 类 号：P631.4[天文地球—地质矿产勘探]