双台阶水平井水动力场特征试验研究  

Hydrodynamic Field Characteristics Experiment of Two-step Horizontal Well

作　　者：魏亚强[1] 伍轶鸣[1,2] 唐仲华[1] 

机构地区：[1]中国地质大学(武汉)环境学院,湖北武汉430074 [2]中国石油塔里木油田开发事业部,新疆库尔勒841000

出　　处：《水电能源科学》2012年第3期74-76,共3页Water Resources and Power

基　　金：国家重点基础研究发展计划基金资助项目(2006CB202308);中国地质调查局基金资助项目(1212011121142)

摘　　要：针对双台阶水平井水动力场特征研究中存在的问题,利用物理模拟试验,研究了不同抽水流量条件下双台阶水平井中水头分布特征。结果表明,不同抽水流量情况下,双台阶水平井管内流态呈现层流、紊流等不同流态;对双台阶水平井的上段,在层流条件下其水头分布近似符合"等水头井壁"与"等流量线汇"模型,在紊流条件下其水头分布则不再符合,而对于双台阶水平井的下段,其水头分布基本上均可刻画为"等水头井壁"和"等强度线汇"模型。Aiming at the problem of hydrodynamic field characteristics of two step horizontal well, physmal model is used to investigate the features of head distribution in two-step horizontal well under different discharge of pumping well. The results show that different flow pattern, such as laminar flow and turbulent zone, can be observed in a two-step hori- zontal well pipe when the pumping flow rate is changed; the head distribution is approximately characterized as a ＂con stant head＂ and ＂constant flow rate＂ model in the upper segment of the two-step horizontal well under laminar flow condi tions but it is not true when the flow pattern is turbulent; the head distribution can be always characterized as ＂constant head＂ and ＂constant flow rate＂ model in the lower segment of the two-step horizontal well.

关 键 词：双台阶水平井 流态 模型 试验 水力特征 

分 类 号：X143[环境科学与工程—环境科学] P641.2[天文地球—地质矿产勘探]