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传统的碳氧比能谱测井仪器虽然具有较好的稳定性和重复性,但存在纵向分辨率低和受环境因素影响大的缺点。为了解决薄、差层的剩余油评价问题,在大庆油田杏树岗地区采用了纵向分辨率相对较高的伴随粒子碳氧比能谱测井仪。通过伴随粒子碳氧比能谱测井仪器的原理研究及初步应用,阐述了该仪器在薄层剩余油测井中的优越性,指出伴随粒子碳氧比能谱测井仪能够进行地层的选择性测量,可以去除井眼、流体等影响,其纵向分辨率达到0.4m,是在薄、差层中寻找剩余油的有效手段。杏树岗地区6口生产井的实际测量及其水淹层解释结果也说明,该仪器的解释精度高,投产效果好,实现了在油田开采后期提高薄、差储层产油量、降低含水率的目的,显示出广阔的应用前景。
Although traditional C / O logging tools have good stability and repeatability, they have the disadvantages of low vertical resolution and large environmental factors. In order to solve the remaining oil evaluation problems of thin and poor layers, a companion particle C / O spectrometer tool with relatively high vertical resolution was adopted in the Xingshugang area of Daqing Oilfield. Through the principle research and preliminary application of particle-oxygen ratio logging tool, the superiority of this instrument in remaining oil logging in thin beds is expounded. It is pointed out that the logging tool with particle-to- The sex measurement, which can remove the influence of borehole and fluid, has a longitudinal resolution of 0.4m, which is an effective way to find the remaining oil in thin and poor layers. The actual measurement of 6 production wells in Xingshugang area and the interpretation results of water flooded layer also show that the instrument has high interpretation precision and good put into effect, which can increase the oil yield of thin and poor reservoirs and reduce the water content in the late stage of oilfield exploitation The rate of purpose, showing a broad application prospects.