煤田三维地震勘探在西部戈壁地区的应用
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摘要
煤田三维地震勘探技术首次应用于西部戈壁地区,针对勘探区浅表砂砾层干燥疏松和煤层埋深及其倾角变化大的不利因素,首先,通过试验选取适合本区的激发与接收因素,并确定合理的观测系统及施工方法。其次,对获得的信噪比较高的原始资料,做好资料处理与解释。通过采取一系列有效技术措施,查明了勘探区褶曲、断层构造特征,控制了主要煤层的空间分布范围。取得的这些地质成果,将成为矿井建设和生产的可靠地质依据。
It is the first time for technology of 3D seismic prospecting coal filed to be employed in the western Gobi region. The dry and soft surface sandy and gravel soil, depth and sharp dip change of coal seal are the disadvantage factors for application. First,it is through experiment to select inducing and receiving factors, and to choose the reasonable observing system and construction method. Second, it must make data process and interpretation to primitive data with high message-to-noise ratio. By means of a set of effective technology, the features of bulk and fold structure, and the special distribution of main coal seal have been ascertained.
It is the first time for technology of 3D seismic prospecting coal filed to be employed in the western Gobi region. The dry and soft surface sandy and gravel soil, depth and sharp dip change of coal seal are the disadvantage factors for application. First,it is through experiment to select inducing and receiving factors, and to choose the reasonable observing system and construction method. Second, it must make data process and interpretation to primitive data with high message-to-noise ratio. By means of a set of effective technology, the features of bulk and fold structure, and the special distribution of main coal seal have been ascertained.
引文
[1]辛思华,等.煤田三维地震勘探在西部某黄土塬地区的应用[J].中国煤田地质,2006,18(3):50-53.
[2]李金花,等.黄土山区煤田三维地震勘探应用实例[J].中国煤田地质,2006,18(3):54-56.
[3]吴守华.沙漠地区资源高精度三维地震勘探技术应用[J].中国煤田地质,2006,18(3):57-59.
[2]李金花,等.黄土山区煤田三维地震勘探应用实例[J].中国煤田地质,2006,18(3):54-56.
[3]吴守华.沙漠地区资源高精度三维地震勘探技术应用[J].中国煤田地质,2006,18(3):57-59.
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