Ground micro-seismic static correction method based on three-dimensional seismic data

• Main Authors: SHANG XINMIN, MA XIAOYI, HU XIAOTING, WANG YANGUANG, ZHAO SHENGTIAN, WANG XINGMOU, CUI QINGHUI, JIE JINGRONG
• Format: Patent
• Language: English
• Published: 25.11.2015
• Subjects: DETECTING MASSES OR OBJECTS; GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; MEASURING; PHYSICS; TESTING

The invention discloses a ground micro-seismic static correction method based on three-dimensional seismic data. The method comprises the steps of selecting three-dimensional seismic data capable of including a work area; using a tomographic static correction method for solving a static correction value; as a demodulation point of the three-dimensional seismic data can be connected with a receiving point of a ground micro-seism through a geodetic coordinate, in this way, for a demodulation point of each ground micro-seism, taking the demodulation point as the center, giving a maximum radius and a minimum radius, and taking the seismic demodulation point static correction value in the range of the minimum radius as the static correction value of the micro-seismic demodulation point; and when the range is greater than the minimum radius and less than the maximum radius, using the static correction value of the three-dimensional seismic data for interpolating the static correction value of the micro-seism by the way of inverse ratio distance interpolation. According to the invention, the three-dimensional seismic data is used for solving the static correction value of the ground micro-seism, manual pick-up first breaks are avoided, no priori information is required, only the static correction of the seismic data is required to be well done, and a simple and efficient static correction processing technique is obtained.