塔河油田AT11井区低幅度构造圈闭的识别方法
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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.
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.
引文
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2王西文.岩性油气藏的储层预测与评价技术研究[J].石油物探,2004,43(6):513-515
3石玉,李宗杰.塔河油田三叠系非构造圈闭识别与评价技术[J].石油与天然气地质,2008,29(1):53-61
4石玉.塔河油田合成地震记录的制作及应用[J].石油物探,2004,43(4):400-403
5孙运强,廉桂辉,张陈慧.地层切片技术在C80工区的应用[J].内蒙古石油化工,2007,33(10):99-100
6苑书金.地震相干体技术的研究综述[J].勘探地球物理进展,2007,30(1):7-16
7朱成宏,黄国骞,秦瞳.断裂系统精细分析技术[J].石油物探,2002,41(1):42-48
8佘德平,曹辉,郭全仕.应用三维相干技术进行精细地震解释[J].石油物探,2000,39(2):83-88
9李宗杰,李艾红,钟伟.人机交互速度解释方法及其在塔北YK工区的应用[J].石油物探,1999,38(2): 99-105
10陆光辉,朱玉波,张宏,等.隐蔽圈闭识别技术发展概述[J].石油物探,2004,27(2):79-86
11杨占龙,彭立才,陈启林,等.地震属性分析与岩性油气藏勘探[J].石油物探,2007,46(2):131-137
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