定向井携液临界流量模型对比研究  

RESEARCH ON THE MODEL OF LIQUID CARRYING CRITICAL FLOW RATE OF DIRECTIONAL WELL

作　　者：杨功田[1] 邹一锋[1] 周兴付[1] 傅春梅[1] 刘永辉[2] 

机构地区：[1]中国石油化工股份有限公司西南油气分公司川西采气厂,四川德阳618000 [2]油气藏地质及开发工程国家重点实验室.西南石油大学,四川成都610500

出　　处：《新疆石油天然气》2012年第1期76-81,1,共6页Xinjiang Oil & Gas

摘　　要：定向井井筒结构复杂,井筒内气流携液困难。利用定向井模拟实验装置对定向井携液临界流量进行测试,将实验结果与液滴模型、Belfroid携液模型、液膜模型进行对比,对比结果表明:理论模型计算出的携液临界流量值比实验测试值大,Belfroid携液模型计算的携液临界流量值随井筒倾角变化趋势与实验测试结果一致。结合实验测试数据,对Belfroid携液模型中的携液临界流速公式系数进行修正,得到定向井携液临界流量修正模型。利用修正模型诊断的气藏定向井积液情况,其诊断结果与采取回声仪诊断液面的结果一致,证明定向井携液临界流量修正模型能较好的预测井底积液情况。Structure of directional well bore is complex,It is difficult to carry liquid by gas in well bore.Liquid carrying critical flow rate of directional well is tested by using the simulation device of directional well.Experimental results are cvnpared with the droplet model,the film model and the Belfroid liquid carrying model,results show that the liquid carrying critical flow rate of theoretical model are bigger than liquid carrying critical flow rate of experimental results and the liquid carrying critical flow rate of Belfroid liquid carrying model follows the same trends as the experimental results.Revising the Belfroid liquid carrying model combined with experimental results.Using the revised liquid carrying model to diagnose fluidifying of directiond well,the diagnosis result is as the same as result by using echometer to diagnose.This provides that fluidifying of directional well can be forecast by the revised liquid carrying model.

关 键 词：定向井 携液临界流量 气井 积液 

分 类 号：TE355[石油与天然气工程—油气田开发工程]