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目前中国东部许多砂砾岩油田相继进入高含水开采后期,由于水驱推进不均匀,矿物和胶结物组分的差异以及地下流体性质的不断变化,造成储集层物性变化复杂,纵、横向上非均质性更为严重,变化机理解释及其它相关研究难度加大。在对泌阳凹陷双河油田和下二门油田注水开发后期砂砾岩储集层物性特征的研究中,根据精选出来的连续测试多年(至少5a以上)的油层吸水及产液剖面,利用测井资料进行物性、岩性和相带解释,依据吸水及产液强度对油层物性变化趋势进行分类,并直接与孔隙结构研究技术相结合。该方法可在中国东部砂砾岩及其它油藏储集层评价中推广使用。照片2图1表4(郭海莉摘)
At present, many gravel oil fields in eastern China have successively entered the stage of high-water-cut mining. Due to the uneven water-driven propulsion, the differences in mineral and cemented components and the continuous changes in the properties of subsurface fluids, the physical properties of reservoirs vary in a complicated way. Vertical and horizontal non- Homogeneity is more serious, changes in the interpretation of the mechanism and other related research more difficult. In the study of physical properties of glutenite reservoirs in the Shuanghe oil field and Xiaermen oil fields in the Biyang depression, water and water production profiles of oil reservoirs were continuously tested for many years (at least 5 years) Well data to interpret physical property, lithology and facies belt, classify the trend of reservoir physical property change according to water absorption and production fluid strength, and directly combine with pore structure research technology. This method can be widely used in the evaluation of glutenite and other reservoir reservoirs in eastern China. Photo 2 Figure 1 Table 4 (Guo Haili pick)