| 伪三维地震勘探法在煤田勘查中的应用 |
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| 引用本文： | 李金花,李建国.伪三维地震勘探法在煤田勘查中的应用[J].中国煤田地质,2007,19(1):63-65. |
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| 作者姓名： | 李金花 李建国 |
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| 作者单位： | 山西省地球物理化学勘查院,山西运城044004 |
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| 摘 要： | 勘探区属郭庄煤矿的后备井田，勘探的目的是掌握井田主可采煤层的赋存形态与断层、陷落柱发育特征。根据勘探区的地质条件，地质任务，兼顾质量和成本，勘探设计方案最终确定为3线1炮制线束状观测系统，采用中间放炮，使勘探物理点由常规二维设计的3000个减至700个，勘探成本明显降低。勘探前后的资料对比分析表明，3#煤层的展布特征和断层构造有较大不同，其中3#煤层展布形态由NE向变化均匀，两翼对称的背斜构造修改为等高线变化扭曲相对剧烈，两翼对称的向斜构造；勘探后新解释断层5条，断点3处，另外3条已知断层的形态、位置、落差等相差各异。
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| 关 键 词： | 二维地震勘探 伪三维观测系统 3线1炮制 线束状观测系统 郭庄煤矿 |
| 文章编号： | 1004-9177（2007）01-0063-03 |
| 收稿时间： | 2006-07-29 |
| 修稿时间： | 2006-11-07 |
Application of Simulated 3D Seismic Prospecting in Coalfield Exploration |
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| Li Jinhua, Li Jianguo.Application of Simulated 3D Seismic Prospecting in Coalfield Exploration[J].Coal Geology of China,2007,19(1):63-65. |
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| Authors: | Li Jinhua Li Jianguo |
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| Institution: | Shanxi Provincial Geophysical and Geochemical Prospecting Institute, Yuneheng, Shanxi 044004 |
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| Abstract: | The exploration area is a reserved minefield of Guozhuang coalmine,to grasp main mineable coal seam occurrence and fault,subsided column characteristics,gave attention to exploration area geological condition,exploration quality and cost, the designed scheme finally deciding as 3 lines 1 shooting system track group recording geometry.By the use of split shooting,cut down prospecting physical point from conventional 2D design 3000 to 700,thus lowered down prospecting cost. From information contrast before and after prospecting indicated that No.3 coal seam spreading characters and fault structure have major differences:No.3 coal seam spreading evenly varying from NE,symmetrical limbs anticline revised into contour relatively violent distorting symmetrical limes syncline;newly interpreted 5 faults and 3 fault points after prospecting,3 known faults have changed their configuration,position and throw. |
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| Keywords: | 2D seismic prospecting simulated 3D recording geometry 3 lines 1 shooting system track group recordinggeometry Guozhuang coalmine |
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