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| Application of horizontal well induction logging in fine structure interpretation |
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HU Song, WANG Xiaochang, KONG Qiangfu, GUO Hongbo1,2
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1. Petroleum Exploration and Production Research Institute, SINOPEC, Beijing 100083, China;2. Research Institute of Petroleum Exploration & Development, Tarim Oil Field Branch Company, PetroChina, Korla 841000, China
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| Abstract: |
| This paper uses induction logging data to establish a 3D numerical simulation forward algorithm. Based on Maxwell's equations, the Marquette inversion algorithm can be built by introducing a damping factor. Based on the interactive forward and inversion approach, the correlation of horizontal well trajectory and strata can be determined. Forward modeling results show that the induction logging data can respond to interface distance as small as 2 m in horizontal wells. Thus, the purpose to determine the top and bottom interface of sand body by using induction resistivity of horizontal well can be achieved. The structure interface map calibrated using this method is consistent with the field observation, which suggests the new method can provide an accurate estimate of the top and bottom interfaces of the sand body in complementary to seismic data. |
| Key words: horizontal well induction logging formation interface structure map reservoir geological modeling |
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