裂缝储层地震预测技术在锦州25-1南潜山的应用研究
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摘要
在储层地质与地震响应特征分析的基础上,应用多种地震预测技术对锦州25-1南潜山油藏进行了裂缝储层综合研究。结果表明,根据裂缝储层弹性参数异常以及多同相轴、弱反射、波组特征横向强不连续性和强方位各向异性等地震响应特征,利用地震属性分析、弹性参数反演、应力场分析和方位各向异性分析等技术,能够从不同角度对裂缝分布进行表征,但都存在一定的局限性和多解性;而综合利用多种地震预测技术进行综合分析,可以提高预测结果的可靠性。锦州25-1南潜山裂缝储层发育部位主要集中在东部断块,1、8井区、2井区及3井区是该油藏裂缝最发育的部位。
On a characteristic analysis basis of reservoir geology and seismic response,several seismic prediction techniques are applied to probe into fractured reservoirs in JZ25-1S buried hill.This application demonstrates that the reservoir fracture distribution in the buried hill can be characterized in various aspects by the techniques such as seismic attribute analysis,elastic parameter inversion,stress field analysis and azimuth anisotropy analysis,according to different seismic response features,including anomalous elastic parameters,increasing reflection events,weak amplitude,weak continuity of waves and strong azimuth anisotropy.However,these techniques have some limitation and ambiguity,and only an integrated prediction by using them can improve reliability of the results.In JZ25-1S buried hill,fractured reservoirs mainly developed in the east fault block,and Well Area 1,8,2 and 3 are the most favourable to hydrocarbon exploration.
On a characteristic analysis basis of reservoir geology and seismic response,several seismic prediction techniques are applied to probe into fractured reservoirs in JZ25-1S buried hill.This application demonstrates that the reservoir fracture distribution in the buried hill can be characterized in various aspects by the techniques such as seismic attribute analysis,elastic parameter inversion,stress field analysis and azimuth anisotropy analysis,according to different seismic response features,including anomalous elastic parameters,increasing reflection events,weak amplitude,weak continuity of waves and strong azimuth anisotropy.However,these techniques have some limitation and ambiguity,and only an integrated prediction by using them can improve reliability of the results.In JZ25-1S buried hill,fractured reservoirs mainly developed in the east fault block,and Well Area 1,8,2 and 3 are the most favourable to hydrocarbon exploration.
引文
[1]CHAPMAN M,LIU E R.Frequency dependent azimuthalamplitude variations in reflections from a fractured layer[C].Denver:International Exposition&74th Annual Meeting,2004.
[2]CHAPMAN M.Frequency dependent azimuthal AVO re-sponse of fractured rock[J].SEG Mtg,2003:105-108.
[3]AVERBUKH A G,ARAPOVA A I,AHMETOVA E R,etal.Seismic exploration for hydrocarbons in the crystallinebasement[C].Pairs:66th EAGE Conference&Exhibition,2004:138-142.
[4]LEVIANT V B,ANTONENKO M N.Study of seismic ener-gy anomalies caused by seismic wave scatter from cavernous-fractured reservoirs in the massive basement rocks[C].Den-ver:International Exposition&74th Annual Meeting,2004:1885-1888.
[5]马立驰.济阳坳陷碳酸盐岩潜山油气藏勘探技术综述[J].石油学报,2004,25(6):44-47.
[6]张昕,郑晓东.裂缝发育带地震识别预测技术研究进展[J].石油地球物理勘探,2005,40(6):724-730.
[7]许云书.岩溶地震解释技术及其应用[J].湖南理工学院学报:自然科学版,2004,17(1):79-80.
[8]王者顺,王尚旭,唐文榜.塔河碳酸盐岩溶洞油藏的地震响应及频率差异分析[J].石油与天然气地质,2004,25(1):93-101.
[9]孙春岩,牛滨华,黄新武,等.潜山风化壳碳酸盐岩油气藏地震响应特征研究及振幅横向差异属性在预测中的应用[J].现代地质,2004,18(1):127-132.
[10]巫芙蓉,李亚林,王玉雪,等.储层裂缝发育带的地震综合预测[J].天然气工业,2006,26(11):49-51.
[11]周心怀,项华,于水,等.渤海锦州南变质岩潜山油藏储集层特征与发育控制因素[J].石油勘探与开发,2005,32(6):17-20.
1)高云峰.利用地震属性预测潜山缝洞分布——以锦州25-1南潜山为例.2006.
1)高云峰.利用地震属性预测潜山缝洞分布——以锦州25-1南潜山为例.2006.
[2]CHAPMAN M.Frequency dependent azimuthal AVO re-sponse of fractured rock[J].SEG Mtg,2003:105-108.
[3]AVERBUKH A G,ARAPOVA A I,AHMETOVA E R,etal.Seismic exploration for hydrocarbons in the crystallinebasement[C].Pairs:66th EAGE Conference&Exhibition,2004:138-142.
[4]LEVIANT V B,ANTONENKO M N.Study of seismic ener-gy anomalies caused by seismic wave scatter from cavernous-fractured reservoirs in the massive basement rocks[C].Den-ver:International Exposition&74th Annual Meeting,2004:1885-1888.
[5]马立驰.济阳坳陷碳酸盐岩潜山油气藏勘探技术综述[J].石油学报,2004,25(6):44-47.
[6]张昕,郑晓东.裂缝发育带地震识别预测技术研究进展[J].石油地球物理勘探,2005,40(6):724-730.
[7]许云书.岩溶地震解释技术及其应用[J].湖南理工学院学报:自然科学版,2004,17(1):79-80.
[8]王者顺,王尚旭,唐文榜.塔河碳酸盐岩溶洞油藏的地震响应及频率差异分析[J].石油与天然气地质,2004,25(1):93-101.
[9]孙春岩,牛滨华,黄新武,等.潜山风化壳碳酸盐岩油气藏地震响应特征研究及振幅横向差异属性在预测中的应用[J].现代地质,2004,18(1):127-132.
[10]巫芙蓉,李亚林,王玉雪,等.储层裂缝发育带的地震综合预测[J].天然气工业,2006,26(11):49-51.
[11]周心怀,项华,于水,等.渤海锦州南变质岩潜山油藏储集层特征与发育控制因素[J].石油勘探与开发,2005,32(6):17-20.
1)高云峰.利用地震属性预测潜山缝洞分布——以锦州25-1南潜山为例.2006.
1)高云峰.利用地震属性预测潜山缝洞分布——以锦州25-1南潜山为例.2006.
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