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Application of automatic fault interpretation technology based on ant colony algorithm in south Huang-jue area
ZHANG Ji-biao1,DAI Jun-sheng1,ZHAO Li-bin2,MAO Cheng-dong3,HAN Teng-fei4,JI Ya-ming5,U Shi-lei6
(1.School of Geosciences in China University of Petroleum, Qingdao 266555, China;2. Exploration and Development Institute, Tarim Oilfield Company,PetroChina, Korla 841000, China;3.Chinese Academy of Land & Resource Economics, Beijing 101149, China;4. Shenzhen Research Institute of CNOOC, Guangzhou 510240, China;5.Zhongyuan Oilfield Branch Company, SIN OPEC, Puyang 457001, China ;6. Exploration and Development Institute, Jilin Oilfield Company,PetroChina, Songyuan 138000, China)
Abstract:
On the basis of the pre-processing of seismic data and the integrated application of multiple seismic attribute technology such as the coherence and variance technique to detect reflection discontinuities in the seismic data, the ant tracking technology was applied in the automatic fault interpretation of the seismic data in south Huang-jue area. Based on the results of automatic interpretation, the three-dimensional fault patches were extracted and the artificial job was also compared with the automatic results. The results show that the fault traces of the attribute volume obtained by the ant tracking technology based on the detection of variance technique over the reflection discontinuities are much more distinct and can be used to effectively guide the fault interpretation both in the plane and the section. It is also concluded that a group of graded faults are developed with nearly EW strikes, N tendency and generally large dip. The main fracture characteristics interpreted by the ant tracking technology agree well with the law of the fault development predicted by structural genesis mechanism, which also proves the technology is effective and practical.
Key words:  seismic prospecting  ant colony algorithm  seismic attribution  ant tracking attribute volume  three-dimensional