油气层计分解释评价方法在辽河滩海葵东区块的应用

The application of interpretation and evaluation score counting method for oil and gas zones in Kuidong block of Liaohe beach region

油气水层解释评价是油气勘探开发的重要环节,由于单一的录井资料都有其局限性,如何把各种录井资料结合起来是有效解释评价的关键。针对此问题,笔者提出了油气层计分解释评价方法,通过对辽河油田897口井的1408个稀油储集层各项资料统计,确定了辽河油田稀油储集层各项特征参数统计计分标准;在此基础上,借助该计分方法原理对辽河油田东、西部凹陷稀油区块近500个稀油层的计分分析,确定了油气层计分方法解释划分标准和解释原则,其在辽河油田东、西部凹陷稀油区块6年的实际应用表明,试油符合率达到85%以上。油气层计分解释评价方法作为辽河滩海葵东区块油气层综合解释评价的主要参考手段,2005—2008年间在15口井的251层的解释评价中得到广泛应用,试油符合率达到90%以上。该方法综合考虑了各项录井资料特征参数的显示特征,为今后新区块的油气勘探开发提供了评价手段。

The interpretation and evaluation for oil,gas and water zones is the key link during oil and gas exploration and development.As the limitation of single mud logging data,the key for an effective interpretation and evaluation is how to integrate various mud logging information.In view of this issue,the author put forward the interpretation and evaluation score counting method for oil and gas zones,and determined the score counting statistic criteria of each characteristic parameter for thinning oil reservoir by summarizing the characteristics of the various parameters in 1408 thinning oil reservoirs from 897 wells in Liaohe Oilfield.On this basis,the interpretation classifying criteria and principles for the score counting method of oil and gas zones were determined with the help of the principles of the score method on score counting analysis about 500 thinning oil zones in east and west sags of Liaohe Oilfield.The practical use about 6 years in east and west sags of Liaohe Oilfield showed that the coincidence rate of oil testing was over 85%.As the major reference means in the composite interpretation and evaluation in oil and gas zones of Kuidong block in liaohe beach,the application of interpretation and evaluation score counting method for oil and gas zones has been widely used in the interpretation and evaluation in 15 wells,251 zones from 2005 to 2008,and the oil testing coincidence rate has reached above 90%.The method comprehensively considered the showing features of each mud logging information,providing the evaluation means for oil and gas exploration and development in new blocks in the future.