The application of geostatistical inversion to reservoir prediction of Tuo 11 south area
YANG Guo-Jie1, SONG Li-Yuan2, SHANG Jian-Xia3
1. West Branch of Exploration and Production Research Institute of Shengli Oilfield Company, SINOPEC, Dongying 257000, China;
2. Geological Institute of Shengli Production Factory of Shengli Oilfield Company, SINOPEC, Dongying 257000, China;
3. Zhanjiang Branch of CNOOC Co., Ltd., Zhanjiang 524057, China
The prediction of oil-bearing sand of the second member of Eocene Shahejie Formation of Tuo 11 south area faces many problem.First,oil-bearing sand cannot be identified by seismic data because of the small thickness;Second,there exists difference of P-impedance between oil-bearing sand and water-bearing sand.Through the analysis of the geophysical characteristics of oil-bearing sand and water-bearing sand,the authors predicted the spatial distribution characteristics of oil-bearing sand using geostatistical inversion under the constraints of resistivity curve,and also predicted the oil-water interface.Inversion results have confirmed that the oil-water interface is at about the depth of 2237 m,which expands the oil-bearing area determined by early studies and is in good agreement with the results of the new drilling.Geostatistical inversion results have achieved good result in Tuo 11 south area for the first time,which widens the train of thought for the further exploration.
杨国杰, 宋丽媛, 商建霞. 地质统计反演技术在坨11南地区储层预测中的应用[J]. 物探与化探, 2015, 39(6): 1193-1198,1204.
YANG Guo-Jie, SONG Li-Yuan, SHANG Jian-Xia. The application of geostatistical inversion to reservoir prediction of Tuo 11 south area. Geophysical and Geochemical Exploration, 2015, 39(6): 1193-1198,1204.
