苏里格气田储层三维地质建模技术研究

THE USE OF 3-D RESERVOIR GEOLOGICAL MODELING IN SULIGE GAS FIELD

研究了如何对苏里格气田全区进行确定性建模和对苏6井区进行随机建模。针对苏里格气田储层非均质性强这一主要特点,以全区确定性建模和区块随机建模相结合的方法,对其地质研究和气藏描述成果进行了定量化转变,形成了包括构造模型、物性模型和流体分布模型的苏里格气田全区整体地质模型和苏6井区的随机模型;以此模型为基础,提供井位优选的参考依据和提供气藏数值模拟的网格参数场。储层地质建模方法成功地运用于苏里格气田气藏描述后,为准确评价气田储层性质及潜在能力提供了可靠依据。

Random simulation modeling and determinate simulation modeling were used in the paper for Su 6 well region and the whole field. In accordance with the major problem m with the strong heterogeneity of Lower Paleozoic carbonate reservoir in Sulige gas field,the geological research and gas reservoir description results in Sulige gas field were quantitatively transformed by taking random simulation modeling as the major method,therefore a set of geological models,including structural model,petrophysical model and fluid distribution mode1 of Sulige gas field were set up. Based on these models,the risk assessment of reserves may be carried out;the relation between gas well productivity and geological condition can be summarized;the bases of optimizing well sites may be determined ;and the grid parameter fields can be provided for gas reservoir numerical simulation.