长庆气田靖边区气藏地质建模

GEOLOGICAL MODELLING FOR THE GAS RESERVOIR AT JINGBIAN REGION IN CHANGQING GAS FIELD

针对靖边区下古生界碳酸盐岩储层非均质性强的主要矛盾 ,以随机模拟建模为主要方法 ,对长庆气田靖边区地质研究和气藏描述成果进行定量化转变 ,形成了包括构造模型、物性模型和流体分布模型的长庆气田靖边区整体地质模型 ;以此模型为基础 ,进行储量的风险估计、归纳气井产能与地质情况的关系、提供井位优选的参考依据及提供气藏数值模拟的网格参数场。

In accordance with the major problem with the strong heterogeneity of Lower Paleozoic carbonate reservoir at Jingbian region,the geological research and gas reservoir descripition results at Jingbian region in Changqing gas field were quantitatively transformed by taking randon simulation modelling as the major method,therefore a set of geological models,including structural model,petrophysical model and fluid distribution model,of Jingbian region in Changqing 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.