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水上地震勘探

水上地震勘探

淺層人工地震探測在水域採用了多道地震法。透過多次覆蓋技術,力求在薄覆蓋層的地震地質條件下獲得基岩面穩定連續的反射波,便於獲取第四系內部、基岩面及風化層內部小斷距斷層的兩盤時間差,從而達到提高淺部斷點解釋的可靠性。水域施工一般採用拖拉式(單端激發單邊接收)方式施工,即將接收電纜牽掛在工作船尾部向後延伸,可控震源裝置同掛在船尾,深入水下一定深度,並與電纜保持一定距離,實行連續航行、定時激發和接收記錄。水上施工有其特殊工作環境,需要在工作期間開啟淺層地震儀的噪聲監測模式、實時監測多道拖纜。保證電纜成直線或近似直線。在發現干擾較大、航跡偏離設計測線太遠、船姿不正、多道電纜羽角過大時,停止採集資料,並認定資料不合格。在海況良好時進行補測或重測。

水上地震勘探

Shallow artificial seismic exploration uses a multi-channel seismic method in the water area。 Through multiple stack technology, we strive to obtain stable and continuous reflection waves of the bedrock surface under the thin cover layer, so as to facilitate the acquisition of the time difference of the small faults in the Quaternary system, the bedrock surface and the weathering layer。 It is helpful to improve the reliability of shallow fault contact’s interpretation。 Water area construction generally adopts drag-and-drop (endpoint excitation and unilateral reception) method, that is, the receiving cable is hung at the stern of the working ship and extended backwards, and the controllable seismic source equipment is hung at the stern of the ship, deep underwater to a certain depth, and a certain distance from the cable。 Continuous navigation, timing excitation and receiving records are implemented。 Water area construction has its own special working environment。 It is necessary to turn on the noise monitoring mode of the shallow seismograph and monitor the multi-channel streamer in real time during the work, and ensure that the cable is in a straight line or approximately straight line。

企業使命

引領地質保障技術進步,支撐煤炭安全、高效、綠色開發

企業願景

成為煤炭地質保障領域國際一流的高科技企業

核心價值觀

人才為本,客戶第一,家國情懷,止於至善

企業精神

求實、創新、奮鬥、超越

工作作風

解放思想,勇於創新,真抓實幹,馬上就辦

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