| In this paper, the electromagnetic wave logging response has carried out quickly and accurately. Numerical matching method is used for fast forward modeling calculation. By uing Fortran language, the formula on the computer software is established. Then we got a series of 2 MHz electromagnetic wave logging response calculation results chart. Finally use the actual logging data to verify the research. The main research conclusions:First, by using fast and efficient method, the semi-analytical finite element method(pattern matching method), to solve the complex formation conditions of borehole in distribution of electromagnetic field. Get the formula of electromagnetic wave logging response in axial symmetry multi-layer.Second, we get a software about the formula. And use of series of simulated formation data to calculate more, got about 2MHz electromagnetic wave logging response into a chart of the system. These into a chart of the system, and shows that under the condition of 2 MHz frequency, detection of electromagnetic wave logging features, including the detection range, depth and sensitivity to the formation parameters, etc.Finally, we verify all the research result. And we can say it can be replicated in actual production. Such as the definition of thin bed and water flooded layer. |
PDF Full Text Request