基于膨胀材料的新型AICD结构设计及其性能实验研究  

A novel AICD structure design and its performance analysis

作　　者：王小秋[1] 汪志明[1] 赵麟 WANG Xiaoqiu;WANG Zhiming;ZHAO Lin(Petroleum Engineering College,China University ofPetroleum-Beijing,Beijing 102249,China;Post-Doctoral Research Station of Shengli Petroleum Administration Bureau,Dongying 257001,China)

机构地区：[1]中国石油大学(北京)石油工程学院,北京102249 [2]胜利石油管理局博士后科研工作站,东营257001

出　　处：《石油科学通报》2018年第3期302-312,共11页Petroleum Science Bulletin

基　　金：国家自然科学基金面上项目"水平井油气水砂多相复杂流动规律研究"(编号:51474225);国家自然科学基金重点项目"深水油气钻采井筒压力控制基础研究"(编号:51734010)联合资助

摘　　要：水平井易在高渗层段、裂缝处过早见水,为了解决该问题国内外研发了多种流入控制装置(ICD)。传统ICD存在流动阻力等级恒定、见水后失效等问题,而国际上主要应用的自适应式流入控制装置(AICD)存在结构复杂、适用范围小等缺点,限制了其推广应用。本文基于多级限流原理,结合遇水膨胀材料创新提出了一种AICD结构。利用数值模拟软件进行了结构参数优化及流体敏感性分析,并进行了全尺寸物理模拟实验。研究结果表明,该装置结构简单,防堵能力强,水油压差明显,对流体黏度、密度不敏感,装置应用范围广泛,在油井的各个生产阶段都具有卓越的性能。In long horizontal wells, bottom water breakthrough is usually encountered due to reservoir heterogeneity and anisotropy. Traditional inflow control device （ICD） structures have disadvantages such as possessing a permanent flow resist rate and being disabled when meeting water. The main application autonomous inflow control device （AICD） usually has a complex structure or narrow application ranges problems which limits its applicability. The paper raised an novel AICD structure design combining a continuous jet principle and water swelling rubber （WSR）. Sensibilities testing and its structure advantages were studied based on numerical simulation and full-scale physical experiments. The result shows that the device has a simple structure which provides an outstanding anti-blocking property and is insensitive to viscosity or density. The structure has a wide application range and can maintain excellent performance in all production stages.

关 键 词：自适应式流入控制装置 数值模拟 全尺寸物理模拟实验 

分 类 号：TE243[石油与天然气工程—油气井工程]