裂缝型潜山油气藏地质导向建模方法与应用

The Method and Application of Geosteering Modeling in Fractured Buried Hill Oil and Gas Reservoirs

摘要: 针对裂缝型潜山油气藏水平井地质导向应用中导向模型如何有效反映裂缝发育有利部位，指导实钻井跟踪并实现精确导向的问题，基于辽河油区S区块元古界潜山采用层状地层模式与多种数据体融合的裂缝随机建模模式两种方法进行分析。前者通过对含油层段进一步细分小层作为导向跟踪流程的基础，后者将各类与裂缝相关数据融合建立属性体进行了初步探索。结果表明二者从不同角度来预测裂缝有利部位与井间裂缝分布，指导地质导向模型建立，具有各自的特点与不足，可以将二者结合应用来提高导向跟踪分析能力。

Abstract: In allusion to the problem that how can geosteering model effectively reflect the location of frac-ture development and guide the real drilling tracking and the accurate geosteering in horizontal wells of fractured buried hill oil and gas reservoirs, two methods, laminar formation mode and fracture random modeling mode with multiple data volumes in geosteering model were analyzed based on the Proterozoic buried hill in S Block of Liaohe Oil Region. In the former, subdividing the oil-bearing zone into sublayer was the base for the geosteering tracking process, while the later made a preliminary exploration on the establishment of the attribute body by combining various types of fracture-related data. The results show that the two methods can predict the beneficial fracture locations and fracture distribution between wells from different angles, and guide the establishment of geosteering model with different advantages and shortcomings. The both can be combined to improve the analysis ability of geosteering tracking.