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| THE APPLICATION OF MULTI-PARAMETER LITHOLOGIC SEISMIC INVERSION TO PREDICTING DISTRIBUTION OF MUDSTONE INTERLAYER OF ROCK SALT IN UNDERGROUND GAS STORAGE |
| DONG Ping-ting1, YANG Fei1, YI Hao2, NIE Ling3 |
1. Key Laboratory of Exploration Technologies for Oil and Gas Resources, Ministry of Education, Yangtze University, Jingzhou 434023, China;
2. Shenzhen Branch of CNOOC, Guangzhou 510240, China;
3. Nanpu Operation Zone, Jidong Oilfield, PetroChina, Tangshan 063200, China |
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Abstract Mudstone interlayer of Jintan rock salt gas storage constitutes a risk in cavity construction.How to identify the mudstone interlayer thus becomes a key problem in exploration.The mudstone interlayer distribution in this region is complex and the quality of seismic data is poor because of the influence of plasticity.As a result, it was hard to identify the mudstone interlayer accurately if only seismic data are used.Therefore,the features of seismic response and logging response of mudstone interlayer were analyzed,also the authors made a connection between gamma curves and seismic information,and carried out multi-parameters inversion.On such a basis,planar and special distribution features of mudstone interlayer were predicted.The application of practical data shows that multi-parameter lithologic seismic inversion can effectively reflect the features of mudstone interlayer variation.
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Received: 13 April 2012
Published: 10 April 2013
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