地震反演技术在煤层顶板工程地质分区中的应用——以巨野煤田龙固井田为例
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摘要
由于煤矿开采条件的复杂度增加,钻井、测井等原始资料匮乏,那些利用原始资料获取信息研究煤层顶板工程地质分区的方法出现了很大的局限性。为了准确、详细地研究原始资料不充足井田的煤层顶板工程地质特征及其分布,在综合钻探、测井等资料的基础上,提出以波阻抗反演技术为辅助手段,应用于巨野煤田龙固井田3煤层顶板,详细研究了煤层顶板岩性分布特点并对其分布进行预测,预测结果与实际结果相符合,有效地证明了在钻井等原始资料缺乏的井田中运用地震反演技术对煤层顶板工程地质分区是有效可行的,解决了由于原始资料缺乏而难以准确预测的问题。
In order to research the geological characteristics and its structure of seam roof in the studied region of coalmine correctly and in detail and based on the complex study data of drilling and logging,etc.,the paper proposes the supplementary means of wave impedance inversion technology and it is applied to study the roof lithology distribution characteristics of Seam 3 in Longgu Mine of Juye Coalfield in detail and its distribution is predicted.It can be found that the predicted result accords with the practical outcome.So,it is proved that earthquake inversion technique has some effective and practical values in the study of the geological zoning of seam roofs.
In order to research the geological characteristics and its structure of seam roof in the studied region of coalmine correctly and in detail and based on the complex study data of drilling and logging,etc.,the paper proposes the supplementary means of wave impedance inversion technology and it is applied to study the roof lithology distribution characteristics of Seam 3 in Longgu Mine of Juye Coalfield in detail and its distribution is predicted.It can be found that the predicted result accords with the practical outcome.So,it is proved that earthquake inversion technique has some effective and practical values in the study of the geological zoning of seam roofs.
引文
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[2]李积永,张玉敏,石勇.地震反演技术在乌南油田的应用[J].中外能源,2007,12(4):52-55.LI Ji-yong,ZHANG Yu-min,SHI Yong.Application of seismic inversion technology in Wunan Oilfield[J].Sino-Global En-ergy,2007,12(4):52-55.
[3]文红伟,杨晓东.煤田地质勘探阶段煤层顶板稳定性评价方法[J].山西建筑,2004,30(13):42-43.WEN Hong-wei,YANG Xiao-dong.Evaluations method for coal seam-roof stability in geological survey stage[J].ShanxiArchitecture,2004,30(13):42-43.
[4]王怀洪,李增学,吕大炜,等.龙固井田主采煤层顶板特征及工程地质分区[J].山东科技大学学报:自然科学版,2007,26(2):5-8.WANG Huai-hong,LI Zeng-xue,LV Da-wei,et al.The characteristics of main seam roof and engineering geological partitionin Longgu Coalfield[J].Journal of Shandong University of Science and Technology:Natural Science,2007,26(2):5-8.
[5]苑书金.叠前地震反演技术的进展及其在岩性油气藏勘探中的应用[J].地球物理学进展,2007,22(3):879-886.YUAN Shu-jin.Progress of pre-stack inversion and application in exploration of the lithological reservoirs[J].Progress inGeophysics,2007,22(3):879-886.
[6]李磊,王英民,杨绍国,等.混合地震反演技术及其在东海南部陆架盆地中的应用[J].中国石油大学学报:自然科学版,2007,31(5):28-40.LI Lei,WANG Ying-min,YANG Shao-guo,et al.Application of hybrid seismic inversion:a case study from the southernshelf basin of east China Sea[J].Journal of China University of Petroleum:Edition of Natural Science,2007,31(5):28-40.
[7]王玉梅,孟宪军,慎国强.叠前地震反演技术在气层预测中的应用[J].油气地球物理,2007,5(2):33-37.WANG Yu-mei,MENG Xian-jun,SHEN Guo-qiang.The application of the prestack seismic inversion technology in gas res-ervoir prediction[J].Petroleum Geophysics,2007,5(2):33-37.
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