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水力压裂技术作为油田的主要增产措施,在油田的勘探与开发中得到广泛的应用,发挥着重要的作用,但优化压裂设计以及评价压裂效果的重要参数—井下实际支撑裂缝的高度却无法直接获取。目前监测压裂高度的测井方法主要有井温测井、同位素测井、中子寿命测井、过套管偶极声波测井,几种方法在缝高识别的精度、放射性污染、成本等方面有所限制与影响。文章阐述了利用补偿中子对示踪陶粒支撑剂俘获能力在长、短道计数上的差异,对压裂缝高进行监测,并与常用的偶极声波测井和井温测井资料进行对比,说明该方法在缝高测井中的有效评价,为压裂缝高测井提供了新思路和新方法。
Hydraulic fracturing technology, as the main stimulation measure in oilfield, has been widely used in oilfield exploration and development and plays an important role. However, the important parameter to optimize fracturing design and evaluate fracturing effect is that the actual fracturing height Can not be obtained directly. At present, the logging methods for monitoring the fracture height mainly include well temperature logging, isotope logging, neutron lifetime logging and overcushion dipole sonic logging. There are several methods for identifying the accuracy of seam height, radioactive contamination, cost, etc. There are restrictions and effects. The paper expounds the differences between long and short channel counting of tracer ceramic proppant by using compensated neutrons, monitors the fracture height and compares it with the commonly used dipole and well logging data , Which shows that the method is effective in seam height logging and provides new ideas and new methods for fracturing height logging.