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在分析了目前国内外常用的7种气测评价方法后指出,气体评价法、轻烃比值法、双对数比值法3种气测解释方法在准噶尔盆地适用性较强,解释符合率较高。在选择气测解释方法时,一定要考虑本地区的储层流体特征及钻井条件,并利用随钻资料对解释方法的区带区间值进行必要的修正;在进行气测解释时应充分利用各种解释方法之间的互补性,综合分析、取长补短,以提高解释精度。
After analyzing the seven commonly used methods for gas measurement in China and abroad, it is pointed out that the gas evaluation method, the light hydrocarbon ratio method and the double logarithmic ratio method are more suitable for application in the Junggar Basin and have a higher coincidence rate . When choosing the method of gas measurement and interpretation, we must consider the reservoir fluid characteristics and drilling conditions in the area and make necessary correction to the zone interval values of the interpretation method by using the data of the drilling while making full use of Explain the complementarities between methods, a comprehensive analysis of each other to improve the accuracy of interpretation.