基于它激振荡增大水力能量的理论研究  

THEORETICAL RESEARCH ON INCREASE HYDRAULIC ENERGY BASED ON INDEPENDENT EXCITATION OSCILLATION

作　　者：熊继有[1] 陈小愉[1] 钱声华 王忠生[3] 田继东[1] 薛亮[1] 周鹏高[1] 钟水清[1] 

机构地区：[1]"油气藏地质及开发工程"国家重点实验室.西南石油学院 [2]中原石油勘探局 [3]四川石油管理局

出　　处：《钻采工艺》2005年第5期14-16,20,共4页Drilling & Production Technology

基　　金："国家自然科学基金项目"资助;项目编号:90210022。

摘　　要：水力它激振荡是利用钻井环空流体作为它激源来增大井底水力能量。对水力它激的作用方式、扰动波特性、激励条件和共振腔内流体流动特性理论模型进行了较全面的理论分析。结果表明,k—ε方程的非线性模型能够很好地描述水力它激共振腔的紊流流动特性。理论模拟结果与实验结果十分吻合,它激振荡比自激振荡平均增大水力能量20%左右,瞬时能量增大1倍多。Hydraulic independent excitation oscillation adopts drilling annulus fluid as independent excitation source to increase bottom - hole hydraulic energy. The paper analyses the action method, disturbance wave property and excitation condition of hydraulic independent excitation and theoretical model of fluid flow property in resonance cavity. The results show that the nonlinear model of k-ε equation can describe turbulent flow characteristic of hydraulic independent excitation resonance cavity. Theoretical modeling consists with experimental result. Compared with autoexcitation, hydraulic energy of independent excitation oscillation is increased by 20 % , instantaneous energy is more than double that of autoexcitation.

关 键 词：钻井 它激振荡 理论 模型 水力能量 模拟计算 实验 

分 类 号：TE21[石油与天然气工程—油气井工程]