公开(公告)号：US09970288B2

公开(公告)日：2018-05-15

申请号：US15692776

申请日：2017-08-31

申请人： Institute of Geology and Geophysics, Chinese Academy of Sciences

发明人： Jian Zheng ,  Qingyun Di ,  Wenxuan Chen ,  Yuntao Sun ,  Wenxiu Zhang ,  Yongyou Yang

IPC分类号： E21B47/12 ,  G01V3/34 ,  E21B47/16 ,  E21B17/02

CPC分类号： E21B47/122 ,  E21B17/003 ,  E21B17/028 ,  E21B47/16 ,  G01V3/28 ,  G01V3/34

摘要： A receiving apparatus for downhole near-bit wireless transmission emission includes an electrical isolation drill collar and an internal electrical isolation short tube. The insulating subs are serially connected and disposed in the middle of the electrical isolation drill collar and the internal electrical isolation sub to realize electric isolation. The electrical isolation drill collar is electrically coupled with the internal electrical isolation short tube through a lantern stabilizer. The receiving apparatus further includes a wireless transmission receiving unit. The electrical isolation drill collar and the internal electrical isolation short tube of the receiving apparatus both have an electrical isolation function. The insulating subs in the electrical isolation drill collar and the internal electrical isolation short tube are non-detachable, and can meet downhole requirements for high torsion and high-pressure sealing property.

公开(公告)号：US09030912B2

公开(公告)日：2015-05-12

申请号：US13175817

申请日：2011-07-01

申请人： Yun Wang ,  Jun Lu

发明人： Yun Wang ,  Jun Lu

IPC分类号： G01V1/28

CPC分类号： G01V1/286 ,  G01V2210/48 ,  G01V2210/586

摘要： An approach is provided for a multi-component seismic data processing that separates P-type and S-type seismic waves in an affine coordinate system. A method for separating and composing seismic waves comprises: determining base vectors of the seismic waves; transforming and separating the seismic wave in an affine coordinate system; and obtaining a signal with true amplitudes and eliminating a mode leakage phenomenon. Therefore, the method achieves the wave separation and recovers the amplitudes of separated waves simultaneously, which reduces noises to provide more precisely seismic data and to satisfy the requirement of seismic data analysis and processing.

摘要翻译： 提供了一种用于在仿射坐标系中分离P型和S型地震波的多分量地震数据处理的方法。 一种用于分离和组合地震波的方法包括：确定地震波的基矢量; 在仿射坐标系中转换和分离地震波; 并获得具有真实幅度的信号并消除模式泄漏现象。 因此，该方法实现了波分离，同时恢复了分离波的振幅，减少了噪声，提供了更精确的地震数据，满足了地震数据分析与处理的要求。