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| Research and application of well-seismic joint acquisition technology in fine seismic exploration of coalfields |
| Wang Yaqi, Xing Xiaofeng |
| Shanxi Mountain Geophysical Technology Co., Ltd., Jinzhong 030600, China |
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Abstract Coalfield seismic exploration was often faced with the problem that the shooting points of wells in the ' forbidden area ' could not be arranged regularly. Although conventional restorative variable view acquisition could meet the coverage times of deep target layers, there would be problems of lack of shallow target information or even ' open skylight '. The method to solve the problem was based on the ' restorative variable view + well seismic joint ' acquisition scheme of shot point preset technology. In this paper, the well-seismic joint acquisition technology was applied to the three-dimensional seismic data acquisition process in the study area of Yangquan, Shanxi Province. Through the comparison and demonstration of the actual acquisition parameters and the theoretical design parameters in the effective coverage times, offset, azimuth and other aspects, the purpose of obtaining complete high-quality seismic data of shallow, medium and deep target layers was achieved. With the multi-source processing technology with matched filtering and wavelet shaping as the core, the feasibility and advancement of the well-seismic joint acquisition technology in the process of coalfields fine seismic exploration data acquisition were verified.
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