煤层气地震解释技术应用及效果——以沁水盆地郑庄区块三维为例
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摘要
依托沁水盆地郑庄区块三维资料的解释成果,通过煤层地震地质层位标定、构造特征等方面的研究,并应用模型正演、体曲率、蚂蚁体、方差体等技术对微断裂及陷落柱进行精细刻画;利用测井数据交会分析、波阻抗反演技术预测了煤层厚度;利用高亮体属性预测了煤层气富集区带。通过上述技术的综合应用,优选出7个煤层气有利区,其中7区带已由钻探结果验证为煤层气富集区。
This paper demonstrates an example of 3D seismic interpretation for coalbed methane in Zhengzhuang Block,Qinshui Basin.According to seismic calibration and structural characteristics analysis,we describe micro fractures and Karst collapse columns by forward modeling and seismic cube attributes,such as ant,curvature,and variance.Then,using cross-plot analysis of logging data and the impedance inversion,we calculate coal bed thickness.Finally,we predict enrichment and accumulation areas of coalbed methane by the highlight cube attribute.Seven favorable zones of coalbed methane are proposed.And up to now,Zone No.7 has been proved as an enrichment and accumulation zone of coalbed methane by drilling.
This paper demonstrates an example of 3D seismic interpretation for coalbed methane in Zhengzhuang Block,Qinshui Basin.According to seismic calibration and structural characteristics analysis,we describe micro fractures and Karst collapse columns by forward modeling and seismic cube attributes,such as ant,curvature,and variance.Then,using cross-plot analysis of logging data and the impedance inversion,we calculate coal bed thickness.Finally,we predict enrichment and accumulation areas of coalbed methane by the highlight cube attribute.Seven favorable zones of coalbed methane are proposed.And up to now,Zone No.7 has been proved as an enrichment and accumulation zone of coalbed methane by drilling.
引文
[1]吴冲龙,王连进等.中国石油地质志(卷五)——华北油田.北京:石油工业出版社,1988
[2]Brown A R.Interpretation of Three-dimendionalSeismic Data(2nd ed).AAPG Memoir 42,1988
[3]Stewart R R,Gulati J S,Zhang Q et al.Analysing 3C-3DVSP data-The black foot,Alberta survey.SEGTechnical Program Expanded Abstracts,1998,17:381～384
[4]Avscth P,Mukcrji T and Mavko G.QuantitativeSeismic Interpretation.Cambrige,2005
[5]Dorn G A et al.Visualization in 3-D seismic interpre-tation.The Leading Eage,1995,14(10):1045～1049
[6]赵文智等.中国煤成气理论发展及其在天然气工业发展中的地位.石油勘探与开发,2009,36(3):280～289Zhao Wenzhi et al.Progress of coal-formed gas geo-logical theory and its status in natural gas industry inChina.Petroleum Exploration and Development,2009,36(3):280～289
[7]孙平.煤层气成藏条件与成藏过程分析[博士学位论文].四川成都:成都理工大学,2007
[8]黄晓明,贾高龙等.沁水盆地煤层气国际合作区块勘探现状.中国煤层气,2010,7(1):9～13Huang Xiaoming,Jia Gaolong et al.General explora-tion status of the CBM blocks in Qingshui Basin,Chi-na.China Coalbed Methane,2010,7(1):9～13
[9]刘振武等.页岩气勘探开发对地球物理技术的需求.石油地球物理勘探,2011,46(5):810～818Liu Zhenwu et al.Needs of geophysical technologies forshale gas exploration.OGP,2011,46(5):810～818
[10]张欣等.蚂蚁追踪在断层自动解释中的应用——以平湖油田放鹤亭构造为例.石油地球物理勘探,2010,45(2):278～281Zhang Xin et al.Application of ant tracing algorithmin fault automatic interpretation:A case study onFangheting structure in Pinghu oilfield.OGP,2010,45(2):278～281
[2]Brown A R.Interpretation of Three-dimendionalSeismic Data(2nd ed).AAPG Memoir 42,1988
[3]Stewart R R,Gulati J S,Zhang Q et al.Analysing 3C-3DVSP data-The black foot,Alberta survey.SEGTechnical Program Expanded Abstracts,1998,17:381～384
[4]Avscth P,Mukcrji T and Mavko G.QuantitativeSeismic Interpretation.Cambrige,2005
[5]Dorn G A et al.Visualization in 3-D seismic interpre-tation.The Leading Eage,1995,14(10):1045～1049
[6]赵文智等.中国煤成气理论发展及其在天然气工业发展中的地位.石油勘探与开发,2009,36(3):280～289Zhao Wenzhi et al.Progress of coal-formed gas geo-logical theory and its status in natural gas industry inChina.Petroleum Exploration and Development,2009,36(3):280～289
[7]孙平.煤层气成藏条件与成藏过程分析[博士学位论文].四川成都:成都理工大学,2007
[8]黄晓明,贾高龙等.沁水盆地煤层气国际合作区块勘探现状.中国煤层气,2010,7(1):9～13Huang Xiaoming,Jia Gaolong et al.General explora-tion status of the CBM blocks in Qingshui Basin,Chi-na.China Coalbed Methane,2010,7(1):9～13
[9]刘振武等.页岩气勘探开发对地球物理技术的需求.石油地球物理勘探,2011,46(5):810～818Liu Zhenwu et al.Needs of geophysical technologies forshale gas exploration.OGP,2011,46(5):810～818
[10]张欣等.蚂蚁追踪在断层自动解释中的应用——以平湖油田放鹤亭构造为例.石油地球物理勘探,2010,45(2):278～281Zhang Xin et al.Application of ant tracing algorithmin fault automatic interpretation:A case study onFangheting structure in Pinghu oilfield.OGP,2010,45(2):278～281
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