吉木萨尔凹陷致密油储层物性定量预测

发布时间：2018-04-04 22:26

本文选题：致密油　切入点：“甜点体”　出处：《特种油气藏》2017年04期

【摘要】：准噶尔盆地吉木萨尔凹陷致密油已成为近年中国非常规油气研究的热点,但储层预测多采用常规方法,难以应对致密油深入研究遇到的复杂问题。为进一步探索致密油储层预测的有效方法,解决致密油目前存在的储层预测难题,综合录井、测井和化验分析结果,将吉木萨尔凹陷芦草沟组致密油储层划分为上、下2套"甜点体",将孔隙度作为致密油"甜点"储层分类的单一敏感参数,并利用多属性综合分析方法确定上、下"甜点体"对孔隙度敏感的地震属性,再采用非线性回归算法,定量预测累计厚度大于4m的"甜点体"储层最大孔隙度。最终明确了吉木萨尔凹陷芦草沟组致密油优势储层发育在凹陷的南部,指明了吉木萨尔凹陷致密油下一步勘探方向。
[Abstract]:Compact oil in Jimusar sag of Junggar Basin has become a hot spot in unconventional oil and gas research in China in recent years. However, conventional methods are often used in reservoir prediction, so it is difficult to deal with the complex problems encountered in the further study of dense oil.In order to further explore the effective method of tight oil reservoir prediction and solve the existing problem of tight oil reservoir prediction, the dense oil reservoir of Lucaogou formation in Jimusar sag is divided into two groups, which are integrated with the results of logging, logging and laboratory analysis.The next two sets of "desserts" regard porosity as a single sensitive parameter for the classification of dense oil "desserts" reservoirs, and determine the seismic properties of the "desserts" which are sensitive to porosity by using the multi-attribute comprehensive analysis method.Then the nonlinear regression algorithm is used to quantitatively predict the maximum porosity of the "dessert" reservoir with a cumulative thickness of more than 4 m.Finally, it is clear that the dominant reservoir of dense oil in Lucaogou formation of Jimusar sag is developed in the south of the sag, indicating the next exploration direction of dense oil in Jimusar sag.
【作者单位】：中国石油新疆油田分公司;
【基金】：国家油气重大专项“准噶尔盆地致密油形成条件、资源潜力及有利区优选”(2016ZX05046-001)
【分类号】：P618.13

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