基于叠后反演的煤层含气量预测研究
|
摘要
为了准确对煤层含气量进行预测,以新景矿区3~#煤层为研究区,利用测井岩石物理分析的方法,对煤层含气量与多种物性参数进行交会分析,筛选出与含气量相关性高的参数,并得到与含气量的线性关系。在此基础上,利用叠后反演的方法,得到3~#煤层的纵波阻抗数据体,最后结合含气量与密度和纵波速度之间的线性关系,实现了3~#煤层含气量的预测研究,预测结果与实测值比较吻合。
In order to accurately forecast coal seam gas content, regard the Xinjing mining area No.3 coal seam as the research target, and log gas physics analysis method was used to analyze the coal seam gas content and various physical parameters, select the parameters of the correlation between air content and high, and a linear relationship with the gas content. On this basis, the post-stack inversion method was used to obtain the longitudinal wave impedance data of No.3 coal seam. Finally, the linear relationship between the gas content, density, and the longitudinal wave velocity was used to realize the prediction and prediction of the gas content of the No.3 coal seam. The results are in good agreement with the measured values.
In order to accurately forecast coal seam gas content, regard the Xinjing mining area No.3 coal seam as the research target, and log gas physics analysis method was used to analyze the coal seam gas content and various physical parameters, select the parameters of the correlation between air content and high, and a linear relationship with the gas content. On this basis, the post-stack inversion method was used to obtain the longitudinal wave impedance data of No.3 coal seam. Finally, the linear relationship between the gas content, density, and the longitudinal wave velocity was used to realize the prediction and prediction of the gas content of the No.3 coal seam. The results are in good agreement with the measured values.
引文
[1]孙茂远,范志强.中国煤层气开发利用现状及产业化战略选择[J].天然气工业,2007(3):1-5,145.
[2]孙茂远,黄盛初.煤层气开发利用手册[M].北京:煤炭工业出版社,1998.
[3]张新民,解光新.我国煤层气开发面临的主要科学技术问题及对策[J].煤田地质与勘探,2002(2):19-22.
[4]彭苏萍,杜文凤,殷裁云,等.高丰度煤层气富集区地球物理识别[J].煤炭学报,2014,39(8):1 398-1 403.
[5]彭苏萍,高云峰,杨瑞召,等. AVO探测煤层瓦斯富集的理论探讨和初步实践——以淮南煤田为例[J].地球物理学报, 2005(6):1 475-1 486.
[6]轩义华,秦成岗,汪瑞良,等.三维叠前同步反演技术在番禺天然气区的应用[J].石油物探,2010,49(3):257-267,6.
[7]邵林海,刘池阳,丁清香,等.韩城煤层气三维地震勘探区11#煤层含气量预测[J].地质科技情报,2016,35(1):147-151.
[8]李江,薛海军,付斌,等.煤层气AVO反演对地震资料偏移距的要求研究[J].煤炭科学技术,2016,44(4):130-134,168.
[9]郭晓龙,李璇,代春萌,等.煤层气地球物理预测方法[J].天然气地球科学,2017,28(2):287-295.
[10]张留荣,曾维望.地震技术在煤层气勘探开发中的应用现状与发展趋势[J].中国煤炭地质,2017,29(6):68-73.
[2]孙茂远,黄盛初.煤层气开发利用手册[M].北京:煤炭工业出版社,1998.
[3]张新民,解光新.我国煤层气开发面临的主要科学技术问题及对策[J].煤田地质与勘探,2002(2):19-22.
[4]彭苏萍,杜文凤,殷裁云,等.高丰度煤层气富集区地球物理识别[J].煤炭学报,2014,39(8):1 398-1 403.
[5]彭苏萍,高云峰,杨瑞召,等. AVO探测煤层瓦斯富集的理论探讨和初步实践——以淮南煤田为例[J].地球物理学报, 2005(6):1 475-1 486.
[6]轩义华,秦成岗,汪瑞良,等.三维叠前同步反演技术在番禺天然气区的应用[J].石油物探,2010,49(3):257-267,6.
[7]邵林海,刘池阳,丁清香,等.韩城煤层气三维地震勘探区11#煤层含气量预测[J].地质科技情报,2016,35(1):147-151.
[8]李江,薛海军,付斌,等.煤层气AVO反演对地震资料偏移距的要求研究[J].煤炭科学技术,2016,44(4):130-134,168.
[9]郭晓龙,李璇,代春萌,等.煤层气地球物理预测方法[J].天然气地球科学,2017,28(2):287-295.
[10]张留荣,曾维望.地震技术在煤层气勘探开发中的应用现状与发展趋势[J].中国煤炭地质,2017,29(6):68-73.