Electromagnetic measurement-while-drilling system and method based on adjacent well receiving antenna
A technology of receiving antenna and measurement while drilling, applied in construction and other directions, can solve the problems of increasing the incidence of drilling accidents, reducing the strength of drill pipe, and accumulating signal errors, so as to reduce external interference, reduce propagation loss, and reduce bandwidth.
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Embodiment 1
[0045] Embodiment 1. An electromagnetic measurement-while-drilling system based on an offset well receiving antenna. The following will combine figure 1 An electromagnetic measurement-while-drilling system based on an offset well receiving antenna of the present invention is introduced in detail.
[0046] Such as figure 1 and 2 As shown, an electromagnetic measurement-while-drilling system based on an offset well receiving antenna includes a drill pipe transmitting assembly 1 , an adjacent well receiving assembly 2 and a ground display terminal 3 .
[0047] The drill pipe launching assembly 1 is inserted into the bottom of the well 4 to be measured, the adjacent well receiving assembly 2 is arranged in the adjacent well 5, and the upper end of the drilling pipe launching assembly 1 is electrically connected to the adjacent well receiving assembly 2, The lower end is wirelessly connected with the adjacent well receiving assembly 2 , and the adjacent well receiving assembly 2...
Embodiment 2
[0060] Embodiment 2. An electromagnetic measurement-while-drilling method based on an offset well receiving antenna. The following will combine Figure 5 An electromagnetic measurement-while-drilling method based on an offset well receiving antenna of the present invention is introduced in detail.
[0061] Such as Figure 5 As shown, an electromagnetic measurement-while-drilling method based on an offset well receiving antenna includes the following steps:
[0062] Step 1: The drill pipe launch assembly 1 collects the sensing parameter signal of the well 4 to be measured and performs the first signal processing to obtain the simulated parameter signal to be launched;
[0063] Step 2: The drill pipe transmitting assembly 1 transmits the analog parameter signal to the adjacent well receiving assembly 2 in the adjacent well 5;
[0064] Step 3: the adjacent well receiving component 2 receives the simulated parameter signal and performs second signal processing to obtain target ...
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