复杂地表千米埋深煤层三维地震勘探方法
|
摘要
为查明XJL煤矿深部区煤层赋存形态和地质构造,对该区域进行了三维地震勘探。该区域三维地震勘探难点为煤层埋藏深、地表复杂、勘探程度低、16煤资料品质差、分辨率低及信噪比低等,针对以上难点,采集过程采取了优化观测系统、Goody GIS结合Klseis软件指导实施特殊观测系统及深井小药量激发等措施;处理过程重点做好了反褶积、去噪及偏移环节;解释过程采用面、块、体结合的综合解释方法,重点做好时深转换速度的分段计算。本次勘探查明了新生界底界起伏形态及3煤层赋存形态,解释了67条断层。经钻探验证,解释成果精度较高。
In order to research coal seam occurrence and geological structure in deep mining area of XJL Coal Mine, 3D seismic exploration is carried out in this area. The difficulties of 3D seismic exploration in this area were deeply buried coal seams,complicated surface, poor data of 16#coal, low exploration degree, low signal-to-noise ratio and low resolution etc. Aimed at above difficulties, the acquisition process adopts the measures including optimizing observation system, Goody GIS combined with Klseis software to guide the implementation of the special observation system and the deep well small dosage excitation;deconvolution, noise suppression and migration were important steps in data processing; the interpretation process adopts the integrated interpretation method of surface, block and body, and focuses on the piecewise calculation of the time-depth conversion speed. This exploration finds out the undulating morphology of Cenozoic and the occurrence of 3#coal seam, and explains the 67 faults. It is verified that the results are more accurate by drilling.
In order to research coal seam occurrence and geological structure in deep mining area of XJL Coal Mine, 3D seismic exploration is carried out in this area. The difficulties of 3D seismic exploration in this area were deeply buried coal seams,complicated surface, poor data of 16#coal, low exploration degree, low signal-to-noise ratio and low resolution etc. Aimed at above difficulties, the acquisition process adopts the measures including optimizing observation system, Goody GIS combined with Klseis software to guide the implementation of the special observation system and the deep well small dosage excitation;deconvolution, noise suppression and migration were important steps in data processing; the interpretation process adopts the integrated interpretation method of surface, block and body, and focuses on the piecewise calculation of the time-depth conversion speed. This exploration finds out the undulating morphology of Cenozoic and the occurrence of 3#coal seam, and explains the 67 faults. It is verified that the results are more accurate by drilling.
引文
[1]滕吉文,乔勇虎,宋鹏汉.我国煤炭需求、探查潜力与高效利用分析[J].地球物理学报,2016,59(12):119.
[2]谢和平,周宏伟,薛东杰,等.煤炭深部开采与极限开采深度的研究与思考[J].煤炭学报,2012,37(4):535-541.
[3]张农,李希勇,郑西贵,等.深部煤炭资源开采现状与技术挑战[C]∥全国煤矿千米深井开采技术论文集.北京:中国煤炭工业学会,2013:2-5.
[4]孙希杰,王静,李淅龙,等.复杂地表深部采区三维地震勘探技术[J].中国煤炭,2016,42(4):35-38.
[5]谢和平,高峰,鞠杨.深部开采的定量界定与分析[J].煤炭学报,2015,40(1):1-10.
[6]梁政国.煤矿山深浅部开采界线划分问题[J].辽宁工程技术大学学报(自然科学版),2001,20(4):554.
[7]许崇宝,王晶,曾爱平.地震勘探技术在煤炭勘查中的应用与展望[J].山东国土资源,2016,32(1):1-8.
[8]张广忠,唐汉平,贾维勇,等.孙村煤矿深部区的三维地震勘探[J].煤田地质与勘探,2002,30(2):49-51.
[9]王琦,董守华.淮北矿区深部煤炭资源高精度地震勘探技术探讨[C]∥煤矿深部开采地质保障技术研究与应用.徐州:中国矿业大学出版社,2008.
[10]李贵明,程建远,冯斌.深部煤层地震资料处理方法[J].煤田地质与勘探,2008,36(5):74-76.
[11]张涛,刘平,夏媛媛.煤田勘探地震资料处理方法研究[J].中州煤炭,2017,39(7):152-156.
[12]李淅龙.叠后去噪在煤田三维地震资料处理中的应用[J].中州煤炭,2016(10):95-98.
[13]罗建峰,王松,孙杰龙.厚黄土区千米深井三维地震勘探方法[J].煤矿安全,2013,44(11):214-216.
[2]谢和平,周宏伟,薛东杰,等.煤炭深部开采与极限开采深度的研究与思考[J].煤炭学报,2012,37(4):535-541.
[3]张农,李希勇,郑西贵,等.深部煤炭资源开采现状与技术挑战[C]∥全国煤矿千米深井开采技术论文集.北京:中国煤炭工业学会,2013:2-5.
[4]孙希杰,王静,李淅龙,等.复杂地表深部采区三维地震勘探技术[J].中国煤炭,2016,42(4):35-38.
[5]谢和平,高峰,鞠杨.深部开采的定量界定与分析[J].煤炭学报,2015,40(1):1-10.
[6]梁政国.煤矿山深浅部开采界线划分问题[J].辽宁工程技术大学学报(自然科学版),2001,20(4):554.
[7]许崇宝,王晶,曾爱平.地震勘探技术在煤炭勘查中的应用与展望[J].山东国土资源,2016,32(1):1-8.
[8]张广忠,唐汉平,贾维勇,等.孙村煤矿深部区的三维地震勘探[J].煤田地质与勘探,2002,30(2):49-51.
[9]王琦,董守华.淮北矿区深部煤炭资源高精度地震勘探技术探讨[C]∥煤矿深部开采地质保障技术研究与应用.徐州:中国矿业大学出版社,2008.
[10]李贵明,程建远,冯斌.深部煤层地震资料处理方法[J].煤田地质与勘探,2008,36(5):74-76.
[11]张涛,刘平,夏媛媛.煤田勘探地震资料处理方法研究[J].中州煤炭,2017,39(7):152-156.
[12]李淅龙.叠后去噪在煤田三维地震资料处理中的应用[J].中州煤炭,2016(10):95-98.
[13]罗建峰,王松,孙杰龙.厚黄土区千米深井三维地震勘探方法[J].煤矿安全,2013,44(11):214-216.