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以典型碳酸盐岩裂缝型有水气藏为例,阐述了裂缝型气藏三维地质建模与数值模拟一体化气藏评价技术。首先应用三维地质建模技术,利用地质、测井等测试资料,进行地层格架、断层、裂缝及相模型的建立,为气藏数值模拟提供了初始静态地质模型;其次,通过数值模拟技术,利用生产动态测试资料,通过历史拟合调整完善数值模型;最后,对不同采气速度、增压开采工艺、排水采气工艺等开发措施进行指标预测评价,最终确定合理的开发调整方案。生产实践表明,应用气藏一体化评价技术能实现不同开发阶段的协同管理,为复杂气藏调整开发方案提供了依据。
Taking typical carbonate fractured water reservoirs as an example, this paper expounds the integrated gas reservoir evaluation techniques for 3D geological modeling and numerical simulation of fractured gas reservoirs. First of all, using the 3D geological modeling technology, using the test data of geology and logging to establish the stratum framework, faults, fractures and facies model, it provides the initial static geologic model for the numerical simulation of gas reservoir. Secondly, through the numerical simulation technology, Using the production dynamic test data, we adjust and perfect the numerical model through historical fitting. Finally, we make predictions and evaluations on the development measures of different gas production rates, supercharged production processes, drainage and gas production processes, and finally determine a reasonable development and adjustment plan. Production practice shows that the application of integrated assessment of gas reservoirs can achieve synergetic management in different stages of development and provide the basis for adjustment and development of complex gas reservoirs.