低孔低渗气层产能预测方法研究——以苏里格气田苏77区块二叠系储层为例  

Research of the Low Porosity and Low Permeability Gas Productivity Forecasting Method ——Taking Sulige Gasfield in Block 77 of Permian Reservoir as an Example

作　　者：于红果 刘朋丞 王军 唐建红 龚洁 

机构地区：[1]中国石油西部钻探工程有限公司测井公司

出　　处：《国外测井技术》2015年第2期23-26,3,共4页World Well Logging Technology

摘　　要：苏里格气田苏77区块二叠系气层属典型的低孔、低渗、低压、低丰度气藏,储层自然产能低,只有经过储层改造才能获得比较好的产能。为了评价储层的含气性以及储层改造的效果,本文在储层参数精细解释的基础上,总结出一套适合本区的气层产能预测方法。首先优选声波时差与补偿密度曲线比值、自然电位相对值、自然伽马相比值等3个测井特征参数比值,并对产能进行敏感性分析,赋以权重系数,构建一个产能预测综合评价系数K,同时根据改造储层段的有效厚度H,建立了气层产能Q与储能评价综合指数P(KH)之间的预测模型。将该模型用于苏77区新井储层评价中,预测结果与试采对比表明,该方法效果明显,具有广阔的应用前景。The Permian gas reservoir in Block 77 of Sulige gasfield belongs to typical low porosity and low permeability, low pressure, low abundance of gas reservoir. The reservoir natural productivity is low, better production capacity can be got only through reservoir reconstruction. In order to evaluate the hydrocarbon reservoir and the effect of reservoir reconstruction, this paper on the basis of fine reservoir parameter interpretation, summed up a set of suitable gas productivity prediction method. First select acoustic time difference and the relative magnitude of the compensation ratio of density curve, the natural potential, natural gamma ray value compared three logging characteristic parameters, such as ratio, and sensitivity analysis was carried out on the production capacity, with as weight coefficient, to build a production forecasting comprehensive evaluation coefficient K, at the same time according to the reconstruction of the reservoir effective thickness H, established composite index for evaluating gas and energy storage capacity Q P(KH) between the prediction model. Using this model to Sue the 77 district new Wells in the reservoir evaluation, prediction results compared to the test,the method is effect is obvious, has broad application prospects.

关 键 词：苏里格气田 低孔低渗 测井特征参数比值 气层产能预测 

分 类 号：TE328[石油与天然气工程—油气田开发工程]