基于录井参数的三维地质建模方法应用研究——以M18井区水平井录井随钻地质导向为例

The Application of 3D Geological Modeling Method Based on Logging Parameters——A Case Study of Geosteering in Logging While Drilling of Horizontal Wells in Well block M18

摘要: 各项录井参数表征了钻井过程中的各种信息，是地质分析解释、指导勘探开采的基础。随着计算机技术的发展以及录井行业的需求变化，传统的以二维图件来展示、分析、处理录井数据的方法已经不能满足深入理解地质构造的要求，三维地质模型以其传递信息的直观性、完整性等优势，已成为发展的必然趋势。采用井震结合、引入录井油气显示参数三维地质建模的方法，实现了构造、多孔介质储层及其内部属性参数的精细表征；通过确定性建模与随机建模相结合的建模方法，实现了储层油气有利地带的预测；形成了一套低孔、低渗砂砾岩油藏三维地质建模技术，有效地指导水平井的随钻地质导向工作。

Abstract: The logging parameters, containing various kinds of information in drilling process, were the basis of geological analysis and interpretation, and the guidance of exploration and production. With the development of computer technology and the change of needs in logging industry, the traditional method of displaying, analyzing and processing logging data in two-dimensional image could not meet the requirements of in-depth understanding of geological structure. The three-dimensional geological model has become an inevitable trend of development with the advantage of direct and complete exhibition of information. By combining logging data with seismic data, three-dimensional geological modeling method with logging oil and gas show parameters is introduced to realize the fine characterization of structure, porous media reservoir and its internal attribute parameters, and the favorable oil and gas reservoirs are predicted by deterministic modeling and stochastic modeling. A set of three-dimensional geological modeling technologies for sandstone and conglomerate reservoir with low-porosity and low-permeability are developed, which can effectively guide the geosteering while drilling of horizontal wells.