Real-time Extraction Method of Formation Interface Based on Azimuth Electromagnetic Logging Data While Drilling
A technology for logging data and formation interface, which is applied in construction, design optimization/simulation, special data processing applications, etc., to achieve the effect of satisfying real-time extraction and improving inversion speed
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[0059] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0060] combine figure 1 As shown, the real-time extraction method of formation interface based on azimuth electromagnetic wave logging data while drilling includes the following steps:
[0061] s1. Obtain the logging data of pilot wells, including resistivity and geological signal logging data.
[0062] s2. Extract formation resistivity and lithology sequences based on pilot well logging data, such as layer thickness, resistivity and formation lithology.
[0063] s3. Sliding window processing is performed on the actual logging data of highly deviated wells / horizontal wells, and the initial complex formation model is transformed into a series of one-dimensional layered formation models after windowing.
[0064] Through the above design, it is beneficial to simplify the three-dimensional inversion problem into a series of one-dimensional inversi...
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