A nuclear magnetic resonance detection system and method based on well mode
A nuclear magnetic resonance and detection system technology, which is applied in the fields of electronic magnetic resonance/nuclear magnetic resonance detection, electrical/magnetic detection for logging records, climate sustainability, etc., which can solve the problem of long dead time and inconsistent detection information. Accuracy etc.
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Embodiment 1
[0046] This embodiment provides a nuclear magnetic resonance detection system based on the well mode, please refer to figure 1 , the system includes:
[0047] Transmitting module 1, comprises main frame 11, the PC machine 12 that is connected with described main frame 11 and the transmitting coil 13 that is connected with described main frame, wherein, described transmitting coil is placed on the ground, and is used for transmitting excitation magnetic field, and described PC machine uses for controlling the transmitting process of the transmitting coil;
[0048] The receiving module 2 is communicatively connected with the transmitting module, including a receiver 21 and a receiving coil 22 connected with the receiver, and the receiving module is placed downhole, wherein the receiving coil is used to receive the nuclear magnetic field produced by the water-bearing body. Resonant response signal;
[0049] Wherein, the receiver can collect downhole signals based on preset init...
Embodiment 2
[0065] Based on the same inventive concept as in Embodiment 1, Embodiment 2 of the present invention provides a method for detecting nuclear magnetic resonance based on a well mode, which is realized by using the nuclear magnetic resonance detection system described in Embodiment 1. Please refer to figure 2 , the method includes:
[0066] Step S201: Obtain the first related parameters of the transmitting coil placed on the ground, the first related parameters include the center position and size of the transmitting coil;
[0067] Step S202: Obtain second related parameters of the receiving coil placed downhole, the second related parameters including the number of turns, radius, depth and center position of the receiving coil;
[0068] Step S203: According to the central position of the receiving coil and the central position of the transmitting coil, obtain a third related parameter of the receiving coil relative to the transmitting coil, wherein the third related parameter ...
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