CAJ | 학술논문

由于调整建模的变差函数分析比较复杂，在有些地质情况复杂的地区单纯使用随机建模方法往往难以得到理想的效果，此时可以考虑导入二维趋势面的方法来控制随机模拟。该文以鄂尔多斯盆地富县地区长8油层组为例，采用矢量化沉积相平面图并赋值所生成的二维趋势面进行沉积相建模。同时，使用等容线内插法生成的二维趋势面来约束孔隙度的随机模拟。结果表明，采用该方法建立的沉积相模型和孔隙度模型分别与研究区沉积相和孔隙度平面分布特征匹配良好。同时，二维趋势面约束法也可结合其他的建模约束法来共同约束地质模型。
유우조정건모적변차함수분석비교복잡，재유사지질정황복잡적지구단순사용수궤건모방법왕왕난이득도이상적효과，차시가이고필도입이유추세면적방법래공제수궤모의。해문이악이다사분지부현지구장8유층조위례，채용시양화침적상평면도병부치소생성적이유추세면진행침적상건모。동시，사용등용선내삽법생성적이유추세면래약속공극도적수궤모의。결과표명，채용해방법건립적침적상모형화공극도모형분별여연구구침적상화공극도평면분포특정필배량호。동시，이유추세면약속법야가결합기타적건모약속법래공동약속지질모형。
Due to the complexity of variation function analysis for modeling adjustment, only using stochastic modeling is difficult to obtain ideal effect in areas with complex geological conditions. In this case, we can introduce two- dimensional trend surface analysis method to constrain the stochastic modeling. Taking Chang 8 oil reservoir set in Fuxian area as an example, this paper utilized the method of vectoring sedimentary facies map and assigning the generated two-dimensional trend surface to carry out sedimentary facies modeling, and adopt the two-dimensional trend surface generated by isochore interpolation method to constrain the stochastic simulation of porosity. The result shows that the sedimentary facies model and porosity model established by this method respectively match the sedimentary facies and porosity distribution well in the study area. At the same time, the two-dimensional trend surface analysis method can also be combined with other modeling constraint method to constrain the geological model.