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Method for Flow Profiling Using Transient Active-Source Heating or Cooling and Temperature Profiling
Method for Flow Profiling Using Transient Active-Source Heating or Cooling and Temperature Profiling
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机译:使用瞬态有源源加热或冷却和温度剖析进行流量剖析的方法
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摘要
A method and apparatus are provided for determining movement of a fluid into or out of a subsurface wellbore, to thereby enable accurate allocation of fluids being produced by or injected into each of several zones of the wellbore. A temperature change is effected in the fluid in a semi-continuous or pulsed manner at one or more locations in the wellbore. A temperature of the fluid is measured at one or more sensing locations downstream of the location of the temperature change. A time of flight model is used to determine, for a plurality of points of interest, a fluid flow direction, bulk flow rate and/or a cumulative flow rate contribution.
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