Relative attitude recognizing method and device and computer storage medium

Abstract

The embodiment of the invention discloses a relative attitude recognizing method and device and a computer storage medium. The method comprises the steps of adopting a transmitting coil as symmetric points, and determining whether or not receiving response of receiving coils symmetric about the transmitting coil is consistent; if yes, determining that an emergency gate within the range of the receiving coils with the consistent receiving response is parallel to a relief well; otherwise, adopting the transmitting coil as the central point, and dividing a receiving coil array into two parts of receiving coils; for each receiving coil, determining whether or not the sum of receiving response accumulated values of all receiving coils within at least one part of the receiving coils is consistent with the receiving response of the center receiving coil arranged together with the transmitting coil; if yes, determining that the emergency gate within the range of the part of receiving coils with consistent receiving response of the center receiving coil is parallel to the relief well; otherwise, determining that the emergency gate is completely not parallel to the relief well.

Description

technical field [0001] The present invention relates to oil exploitation safety assurance technology, in particular to a relative posture recognition method, device and computer storage medium. Background technique [0002] At present, conventional rescue well detection and positioning methods mainly include magnetic disturbance method, injection current method and transient electromagnetic method. For the transient electromagnetic method, which can also be called the time-domain electromagnetic method, it belongs to a positioning detection technology based on the electromagnetic induction of transient signals. The principle is to generate a pulsed electromagnetic field signal by using a large loop that is not connected to the ground to induce the conductor in the formation to generate an induced current, and during the interval of the primary pulsed magnetic field signal, the secondary magnetic field signal generated by the induced current in the conductor will not be cause...

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Problems solved by technology

[0003] For the current conventional detection scheme using the transient electromagnetic method, in the short-distance follow-up stage of the rescue well, due to the large measurement range and the short distance between the accident well and the rescue well, the casing of the accident well covered by the transient electromagnetic signal The range is large, and the casing of the measured accident well is no longer a point target. From this, it can be seen that the distance and azimuth measured by the traditional detection model that uses the accident well as a point target will have serious deviations, and it is impossible to accurately obtain the rescue well and the accident well. relative attitude information, which is not conducive to the high-precision follow-up of rescue wells at close range

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