沉积相测井解释模型在辽中凹陷的应用  

Application of Sedimentary-facies Welllogging Interpretation Model to Liaozhong Sag

作　　者：徐云龙[1,2] 赵伟[1] 范厚江[1,2] 李奕霏[1] 

机构地区：[1]成都理工大学能源学院,四川成都610059 [2]油气藏地质及开发工程国家重点实验室.成都理工大学,四川成都610059

出　　处：《天然气技术与经济》2013年第6期19-22,78,共4页Natural Gas Technology and Economy

基　　金：国家"十二五"重大专项"辽中凹陷油气成藏规律及勘探方向研究"(2011ZX05023-001-014)资助

摘　　要：因不同层位影响因素的差异,即使同一口井的不同层位也难以使用同一个模型来解释。对整个辽中凹陷来说,更难建立起一个统一的模型公式评价烃源岩。运用ΔlgR技术,选择合适的有机碳数值及与其对应的测井参数,通过PASW分析软件做回归分析,拟合出模型的基本系数,带入模型评估对比后,建立起辽中凹陷烃源岩评价模型。模型对比验证发现,以沉积相为基础建立对应测井模型最符合实际情况,对多个井带入模型进行验证,结果显示:模型TOC计算值与实测值具有较高的吻合性,可以推广到整个辽中凹陷地区。In different beds, their controlling factors are very distinct. As a result, even though different beds in a same well cannot be interpreted by the same model. It's difficult to develop a unified model formula to evaluate source rock of Liaozhong sag. But, in our study, a model to evaluate the source rock was established by some researches, such as, to adopt ΔlgR technology, to select suitable organic carbon value and its corresponding well-logging parameter, to carry out regression analysis by PASW software, to match the basic coefficients of the model, and to bring these coefficients into the model to fulfill an evaluation and comparison. Results show that(1) the corresponding well-logging model, which is based on sedimentary facies, is highly accords with actual situation; and(2)the calculated value of model TOC is also highly identical to actual one. This model can be applied to whole areas of Liaozhong sag.

关 键 词：烃源岩回归分析测井解释模型辽中凹陷 

分 类 号：P618.13[天文地球—矿床学] P631.81[天文地球—地质学]