基于蚂蚁算法的断裂追踪技术在乌夏地区的应用
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摘要
断裂解释是地震资料解释的重要内容,解释的可靠性对储层研究有很大影响。在乌夏地区地震资料进行预处理并综合应用相干体、方差体等技术手段检测地震反射不连续性的基础上,应用蚂蚁追踪技术进行断裂系统解释,对蚂蚁追踪属性体提取过程中涉及的6个参数的合理取值进行对照试验,并用地震、岩心、成像测井等资料对试验结果进行多次验证。文中利用构造平滑、方差计算增强断裂边界,通过参数试验,确定属性提取最优参数组合,并由产状控制滤除低角度层位痕迹,进而生成蚂蚁追踪属性体;对属性体提取积分厚度,预测平面裂缝发育情况,通过碎片拾取,确定裂缝大致方位及角度,以加深对乌夏地区二叠系风城组断裂系统的认识。应用分析表明,蚂蚁追踪的属性体断裂痕迹比相干体、方差体更为清晰,并能在平面及剖面解释上体现更多的细节。
Fault interpretation is the important content of seismic data interpretation.The reliability of interpretation has great influence on reservoir research.On the basis of the pre-processing of seismic data and the integrated application of multiple seismic attribute technology such as the variance and coherence technique to detect reflection discontinuities in the seismic data,the ant tracking technology was applied in the fault interpretation in Wuxia Area.This paper tested the six parameters related to the process of ant-track extraction and examined the results with the data of seismic,rock cores and FMI.The favorable areas of fractures were identified by structure smoothing and variance calculating.The tests of ant-tracking parameters determined the attribute extraction and the optimal parameter combination.Attitute controlled strata trace and filtered out low angle trace,thus generating ant tracking attributes.By the attribute extraction and the thickness of the integral body,the plane fracture development situation was prdicted.Through the picking up of fragments,roughly the azimuth and angle of fracture were determined in order to deepen the understanding on the Permian Fengcheng Formation fracture system in Wuxia Area.Analysis shows that the fracture trace of ant tracking attribute is more clear than that of coherent and variance,and can reflect more details on the plane and profile interpretation.
Fault interpretation is the important content of seismic data interpretation.The reliability of interpretation has great influence on reservoir research.On the basis of the pre-processing of seismic data and the integrated application of multiple seismic attribute technology such as the variance and coherence technique to detect reflection discontinuities in the seismic data,the ant tracking technology was applied in the fault interpretation in Wuxia Area.This paper tested the six parameters related to the process of ant-track extraction and examined the results with the data of seismic,rock cores and FMI.The favorable areas of fractures were identified by structure smoothing and variance calculating.The tests of ant-tracking parameters determined the attribute extraction and the optimal parameter combination.Attitute controlled strata trace and filtered out low angle trace,thus generating ant tracking attributes.By the attribute extraction and the thickness of the integral body,the plane fracture development situation was prdicted.Through the picking up of fragments,roughly the azimuth and angle of fracture were determined in order to deepen the understanding on the Permian Fengcheng Formation fracture system in Wuxia Area.Analysis shows that the fracture trace of ant tracking attribute is more clear than that of coherent and variance,and can reflect more details on the plane and profile interpretation.
引文
[1]王军,戴俊生,冯建伟,等.准噶尔盆地乌夏断裂带构造分区及油气藏特征[J].新疆地质,2008,26(3):270-272.
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[12]张欣.蚂蚁追踪在断层自动解释中的应用[J].石油地球物理勘探,2010,45(2):279-281.
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[14]张军华,王月英,赵勇.C3相干体在断层和裂缝识别中的应用[J].地震学报,2004,26(5):560-563.
[15]张军华,王永刚,赵勇,等.相干体技术算法改进及其在TJH地区的应用[J].物探与化探,2002,26(1):50-52.
[16]吴永平,王超.三维相干技术在三维精细构造解释中的应用[J].断块油气田,2008,15(2):27-30.
[17]黄健良,乐友喜,问雪,等.蚂蚁追踪技术在Y地区断裂系统解释中的应用分析[C]//中国地球物理学会.中国地球物理.合肥:中国科学技术大学出版社,2012:403-406.
[18]Randen T,Pedersen S I.Automatic extraction of fault surfaces from three dimensional seismic data[J].SEG Technical Program Expanded Abstracts,2001,20:551-554.
[2]牛海青,陈世悦,张鹏,等.准噶尔盆地乌夏地区二叠系储集层特征及影响因素分析[J].古地理学报,2009,11(4):425-426.
[3]张国辉,任晓娟,张宁生.微裂缝对低渗储层水驱油渗流规律的影响[J].西安石油大学学报:自然科学版,2007,22(5):44-51.
[4]曾联波.裂缝在吉林两井低渗透砂岩油田开发中的作用[J].西安石油学院学报:自然科学版,2003,18(2):18-21.
[5]Dorigo M,Maniezzo V.Colomi distributed optimization by ant colonies[C]//Proc of European Conf on Artificial Life,Paris:Elsevier,1991:134-142.
[6]Sait Baytok,Matthew J Pranter.Fault and fracture distribution within a tight-gas sandstone reservoir:Mesaverde Group,Mamm Creek Field,Piceance Basin,Colorado,USA[J].Petroleum Geoscience,2013,19(8):203-222.
[7]Andreas W Laake,Mohamed S Sheneshen.Integration of surface/subsurface techniques reveals faults in Gulf of Suez oilfields[J].Petroleum Geoscience,2011,17(5):165-179.
[8]王霞,汪关妹,刘东琴,等.地震体属性分析技术及应用[J].石油地球物理勘探,2012,47(1):45-48.
[9]巫波,刘遥,荣元帅,等.蚂蚁追踪技术在缝洞型油藏裂缝预测中的应用[J].断块油气田,2014,21(4):453-457.
[10]张淑娟,王延斌,梁星如,等.蚂蚁追踪技术在潜山油藏裂缝预测中的应用[J].断块油气田,2011,18(1):52-54.
[11]张继标,戴俊生,冯建伟,等.蚂蚁追踪技术在大程庄地区断裂自动解释中的应用[J].石油天然气学报,2012,34(5):53-55.
[12]张欣.蚂蚁追踪在断层自动解释中的应用[J].石油地球物理勘探,2010,45(2):279-281.
[13]杨瑞召,李洋,庞海玲,等.产状控制蚂蚁体预测微裂缝技术及其应用[J].煤田地质与勘探,2013,41(2):73-74.
[14]张军华,王月英,赵勇.C3相干体在断层和裂缝识别中的应用[J].地震学报,2004,26(5):560-563.
[15]张军华,王永刚,赵勇,等.相干体技术算法改进及其在TJH地区的应用[J].物探与化探,2002,26(1):50-52.
[16]吴永平,王超.三维相干技术在三维精细构造解释中的应用[J].断块油气田,2008,15(2):27-30.
[17]黄健良,乐友喜,问雪,等.蚂蚁追踪技术在Y地区断裂系统解释中的应用分析[C]//中国地球物理学会.中国地球物理.合肥:中国科学技术大学出版社,2012:403-406.
[18]Randen T,Pedersen S I.Automatic extraction of fault surfaces from three dimensional seismic data[J].SEG Technical Program Expanded Abstracts,2001,20:551-554.
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