高能气体压裂中井温的动态预测  

THE DYNAMIC PREDETERMINATION OF WELL TEMPERATURE IN HIGH ENERGY GAS FRACTURE

作　　者：尉立岗[1] 张玄奇[1] 张廷汉 

机构地区：[1]西安石油学院

出　　处：《石油钻采工艺》1994年第4期79-83,共5页Oil Drilling & Production Technology

摘　　要：本文着重研究了高能气体压裂过程中，井温随时间的变化规律。用爆炸力学的计算方法，对美国提供的实测资料进行了理论计算，得出了可以直接定量计算和预测在实际的压力—时间变化规律下对应的温度—时间变化规律。研究结果与美国及原苏联的研究结果基本符合，证明爆燃石井下温度远低于火药爆然时的瞬时温度。文中指出，改变与控制点火方式就可以控制燃烧速度及爆压值，进而达到控制井温的目的，利用井温的变化过程可以找到井下解堵的办法等。这些为高能气体压裂的现场实施提供了理论依据。This peper studies emphatically the variation laws of well temperature with the time in high energy gas fracture. The measured data published by USA are processed by the computation method of explosion mechanics,and the method to calculate and predetermine quantitutively the variation laws of temperature with time is obtained in the light of that of pressure with time. The study results in this peper, which tally batically with that of USA and the former Soviet Union,show that the downhole temPerature after explesion is far lower the instuntuneous temperature when the gunpower expboes. This peper points out that we can control the burning rate and detonation pressure by changing the ignition pottern,and the control the well temperature,and that we can seek the way to remove the pluedng applying the variation process of well temperature. These results provide theorical bois for the field applications of high energy gas fracture

关 键 词：气体压裂 井温 预测 油井爆炸 

分 类 号：TE357.3[石油与天然气工程—油气田开发工程]