海上S油田砂岩储层横向预测

PREDICTION FOR THE LATERAL VARIATION OF THE SANDSTONE RESERVOIR OF S-OFFSHORE OIL FIELD

海洋石油研究中心

Research Centre of Marine Geology

本文介绍了我国海上S油田主要储层及其厚度、埋藏深度和沉积环境。为了突出砂泥岩剖面的储层特征,我们把控制S油田的主要地震测线在DISCO系统上进行了目标处理,地震剖面质量有明显提高。利用重新处理的高分辨率地震资料,综合分析振幅、频率、相位、丰度等地震反射特征,对主要砂体有了明确认识;综合解释测井和地震资料,对S油田主力油层进行横向预测,进一步了解了它们的分布范围和接触关系。

In this paper, the major reservoirs in S-offshore oil field and thir thickness, buried depths as well as depositional environments were introduced. In order to give prominence to, the feature of the reservoir including in the sandy mudstone section,the objective processing was made for the major seismic lines dominating over the S-oilfield on the DISCO systems. The quality of the seismic section thus obtained was proved to be distinctly improved. By making a comprehensive analysis for the reflection characteristics such as the amplitude,the frequency,the phase, etc. presented on the high resolution seismic data re- processed, deeper understanding has been arrived at for the major sand bodies, The main producing horizons and the range of their distribution as well as the contact relationship between them were worked out by the integrated interpretation for all kinds of seismic data available as well as the information in lateral variation of the reservoir from prediction.