The Research To Log Recognition Technology For Thin Oil Layer In Qilicun Oilfield

Aiming at no high longitudinal resolution of conventional logging, inaccuracy ofresponse value to thin reservoir which result in loss of thin layer interpretation, high cost ofconventional high resolution logging suite, and based on effect analysis to conventionallogging response characteristic of thin layer, this paper confirm sensitive profile and integratevarious method such as Walsh method of inversion and resolution matching method andFourier frequency spectrum method which can improve conventional well logs longitudinalresolution, which optimize best way. The result shows that treated well logs with Fourierfrequency spectrum method can effectively reflect actual layer condition. After the treatmentof improving well log longitudinal resolution, sand body division accuracy is obviously moreexquisite than primary and well logging interpretation is more accurate, which providefavorable benefit for development and reserves replacement of all area.