THE METHOD OF DIVISION THIRD-DEGREE SUCCESSION OF STRATA BY GAMMA RAY LOGGING WAVELET ANALYSIS IN STATIONARY CONTINENTAL FACIES DEPRESSION BASIN:TAKING YANCHANG FORMATION OF ORDOS BASIN AS AN EXAMPLE
应用自然伽玛测井曲线小波分析划分陆相坳陷盆地三级层序的方法:以鄂尔多斯盆地延长组为例

The thesis take the Yanchang team of Ordos basin as the example, select ten drilling as study sample, use the two attribute of the wavelet transform of gamma ray logging, adopt the correlation method such as wavelet period, range marker horizon, earthquake succession of strata and the outcome of synthesis succession of strata division, the conclusion show that GR-Dmey-D10 wavelet can be used as a quantization criterion to demark the third-degree succession of strata. The application effictiveness show that the wavelet analysis of gamma ray logging can help us to unify the project of succession of strata division, to upraise the accuracy of succession of strata division, to recover the thickness of denudation succession of strata division, to upraise the degree of the study of succession of strata and the industrialization mapping. The method is available in the area of the division of third-degree succession of strata in most part of stationary continental facies depression lake basin.