储层预测技术在苏里格气田开发评价中的应用

详细信息

The application of reservoir forecasting techniques to exploitation appraisement of Sulige gas field

1. Geology Department of Northwest University, Xi'an 710069, China;
2. Changqing Oilfield Company, Petrochina, Xi'an 710021, China;
3. Institute of Geology and Geophysics, Chinese Academy of Science, Beijing 100029, China

摘要: 针对苏里格气田盒8岩性气藏储层横向变化大、非均质性强、储层预测难度大的特点,利用二维地震资料,通过AVO远近道集叠加振幅分析、波阻抗反演和属性分析方法,进行盒8储层岩性及含气性综合预测。根据预测结果优选的开发评价井钻井结果良好,对低渗透砂岩储层岩性及含气性预测,能够进一步提高储层含气性预测的可靠性和开发评价井的预测成功率。
- AVO分析 /
- 储层预测 /
- 岩性气藏
Abstract: Aiming at the characteristics of quick lateral changes,strong heterogeneity and difficulty in prediction of He8 lithologic reservoir in Sulige gas field,the study applied AVO analysis of far-near trace stack amplitude and attributes,and pre-stack inversion to the integrated estimation of reservoir lithology and gas-bearing quality based on 2D seismic data.The development appraisal wells from the estimating results have acquired good drilling effects.The methods will improve the prediction reliability of gas charged sands and successful probability of exploitation appraisal wells in low permeability sand reservoir,and will provide instruction to actual work,and will have wide applying foreground.
- AVO analysis /
- reservoir estimation /
- lithologic reservoir