地震砂体刻画技术在鄂尔多斯盆地宁东26井区储层预测中的应用

详细信息

收稿日期: 2015-12-23

APPLICATION OF SEISMIC SAND DEPICTION TECHNIQUE IN NINGDONG 26 AREA OF ORDOS BASIN

Received Date: 23 December 2015

摘要: 利用宁东26井区延安组油层组不同厚度砂体在地震剖面上的反射波形结构特征差异,根据有利储集砂体的地震反射波形结构特征,在地震剖面上从已知井点出发向外横向追踪,定性地刻画出主砂体的空间展布特征;同时,采用地质统计学随机岩性反演技术对储集砂体进行定量预测,其定性、定量预测的结果相吻合,从而精确地刻画出砂体的空间展布特征,在预测的有利砂体范围内部署的井位,均获得高产工业油流。
- 反射波形结构 /
- 岩性反演 /
- 砂体刻画
Abstract: Qualitative and quantitative sand body prediction techniques are applied to the Yan 52 reservoir group at Ningdong Well 26 area. Using the seismic reflection patterns of the favorable sand bodies with various thickness and seismic characteristics, the spatial distribution pattern of sand bodies has been revealed. The results from geostatistics and random lithology inversion technique are fit well. High yield of industrial oil has been obtained from the reservoir depicted with the technique mentioned above.
- reflection waveform structure /
- lithological inversion /
- sand body depiction