准噶尔盆地车排子地区裂缝预测综合评价方法及应用

A Comprehensive Evaluation Method and Application of Fracture Prediction in Car Row Sub-area

随着勘探程度的不断提高,常规油气藏的比例越来越小,裂缝型油气藏在新增储量中将会占有更大比重。而准噶尔盆地车排子火山岩裂缝储层非均质性严重、分布形式多样以及含油性复杂的特点,仅靠一种方法很难对其裂缝发育区进行有利预测。在已有的地质、钻井和测井资料下,对勘探区裂缝储层岩石物理特性进行分析,并建立了岩石物理模型进行了正演模拟,作了对比分析;采用多方法、多技术的思路进行了综合裂缝预测的研究,提取吻合度较高的几种方法再结合实际的毯砂分布、硬壳分布范围,预测了有利储层的分布范围。实际应用表明,该方法预测的有利区域与实际勘探成果相比有很好的吻合度,为实际的井位部署提供了可靠的依据。

With the continuous improvement of exploration level,the proportion of conventional oil and gas reservoirs is smaller. The fracture type reservoir will account for a larger proportion of the new reserves. In this paper,it is difficult to predict the fracture zone in the fracture zone by means of a single method. In this paper,the rock physical characteristics of fracture reservoir in the exploration area are analyzed under the existing geological,drilling and logging data. In this paper,the modeling of rock physical model is established. The comparison analysis is made. The ideology in technology of fracture prediction research,including several extraction methods of alignment is higher when combining with the actual blanket sand distribution,distribution,scale of predicting the favorable reservoir distribution. The actual application indicates that the favorable area predicted by the method has a good agreement with the actual prospecting results. It provides a reliable basis for the actual well deployment.