提高分辨率处理技术在苏里格气田西区的应用

The Application of Improving Resolution Processing Technology in West Region of Sulige Gasfield

苏里格气田是鄂尔多斯盆地天然气储量富集区,苏里格气田西区储层砂体厚度变化大,砂体普遍较薄。为了有效识别薄砂层,要求加强对地震资料进行提高分辨率的处理。通过对实际资料进行反褶积和Q补偿方法试验,认为在苏里格气田西区应用地表一致性反褶积和Q补偿串联的方法能有效提高地震资料的分辨率,为后续薄砂层的储层预测提供了高品质的地震成果;同时通过参数优选总结出了苏里格气田西区品质因子Q的范围。该研究成果为同类地区开展高分辨率方法研究提供了借鉴。

Sulige Gasfield was a natural gas reserves enriched region of Ordos Basin.In west Sulige Gasfield,reservoir sand thickness variation was severe,sand bodies were generally thinner.In order to effectively identify thin sand beds,it was required that the resolution of seismic data processing should be strengthened.Through deconvolution of actual data and test of Q compensation method,it was considered that the application of deconvolution consistent with surface area and Q series compensation method in west Sulige Gasfield could effectively improve the resolution of the data process the provide high-quality results for subsequent thin sand reservoir prediction.And through the optimization of parameters,value range of quality factor Q is summed up in west Sulige Gasfield.The studied result provides reference for studying the high-resolution methods in the same areas.