An automatical infill shot method for uniform imaging of target layer |
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| Authors: | Hu Zhao Cheng Yin Peng-Jun Hou Long-Chuan Pu Yong Huang Guo-Hui Yuan |
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| Institution: | 1373. Resources and Environment Department, Southwest Petroleum University, Chengdu, 610500, China
2373. The Second Exploitation Factory of Huabei OilField Company, Langfang, 065000, China
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| Abstract: | Seismic imaging quality is critical to describing reservoirs. There are many methods that can improve imaging quality; some rely on advanced processing means, whereas others rely on changing the field acquisition methods. However, most of the acquisition methods focus on improving imaging by using infill shots without considering the target-layer illumination energy. Moreover, total infill shooting greatly increases the acquisition cost. In this paper, we present a new method for maximizing the contribution to the target shadow area illumination by automatic local infill shooting. Thus, we designed 2D and 3D models and obtained the depth migration section by forward modeling, infill shots, depth migration, etc. The model results also show that by choosing the most appropriate number of shot points, we can enhance the shadow area energy and improve the target-layer imaging quality at low cost. |
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