非均质底水油藏水平井ICD完井优化设计

发布时间：2018-03-11 04:31

本文选题：非均质底水油藏　切入点：ICD完井　出处：《石油学报》2017年10期 　论文类型：期刊论文

【摘要】：流入控制阀(ICD)完井动态模拟预测和完井参数优化设计是ICD完井实现水平井生产优化的生命基础。结合半解析耦合模型和Eclipse 2011,建立稳态模拟和瞬态模拟相结合的ICD完井动态模拟方法。该方法不仅是以某一时刻的完井动态为设计依据,而是同时从整个生产周期内井筒与油藏流动动态最佳的角度来优化设计完井参数。针对非均质底水油藏,利用建立的模拟方法进行了ICD完井实例计算与参数敏感性分析,并分别提出了不同布置方式下的ICD完井优化设计方法。结果表明:ICD完井相对于常规完井能显著改善水平井的生产动态;ICD限流强度的确定需综合考虑产液剖面均匀程度和水平井采油指数,ICD完井存在一个最优ICD限流强度;对于非均质底水油藏,水平井ICD完井存在一个最优封隔器个数,其与具体储层的渗透率非均质程度密切相关;变化布置ICD完井设计相对于统一布置ICD完井设计不仅能使产液剖面更均匀,而且还能提高水平井的采油指数。
[Abstract]:Flow control valve (ICD) and dynamic simulation prediction and completion parameters optimization design is ICD based optimization of horizontal well completion to achieve life production. Combined with the semi analytical model and simulation method of ICD Eclipse 2011, a completion dynamic steady state simulation and transient simulation are combined. This method is not only to a certain time for the completion of dynamic the design basis, but also the dynamic flow from the whole production cycle of wellbore and reservoir optimal angle to optimize design parameters. Completion for non-homogeneous bottom water reservoir, analyzed the sensitivity calculation and parameter ICD completion examples using the established simulation method, and put forward the optimum design method of ICD completion under different arrangement. The results showed that: compared with the ICD completion conventionalproduction can significantly improve the completion of horizontal wells; ICD limit determined flow intensity should be considered in the production fluid profile and uniformity of water level Oil well completion ICD index, there is an optimal ICD limiting strength; for the heterogeneous bottom water reservoir, horizontal well completion ICD there is an optimal number of packer, with its specific reservoir permeability is closely related to non homogeneity; change the arrangement of the ICD completion design relative to the unified arrangement of the ICD completion design can not only make the liquid production the profile is more uniform, but also improve the level of wells.

【作者单位】：西南石油大学油气藏地质及开发工程国家重点实验室;中国石油化工股份有限公司西南油气分公司石油工程技术研究院;中国石油塔里木油田公司勘探开发研究院;
【基金】：国家重大科技专项“四川盆地致密碎屑岩完井与储层改造技术研究”(2016ZX05002-004-006)资助
【分类号】：TE257

【相似文献】