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Cuttings bed recognition system

An identification system and cuttings bed technology, applied in the field of cuttings bed identification system, can solve the problems of not truly reflecting the characteristics of downhole cuttings beds, real-time identification and monitoring of cuttings beds, unfavorable drilling construction, etc., to achieve real-time detection , Avoid long-term stoppage and prevent downhole accidents

Pending Publication Date: 2019-11-01
CHINA NAT PETROLEUM CORP CHUANQING DRILLING ENG CO LTD +1
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Problems solved by technology

[0003]At present, the identification of cuttings beds still relies on theoretical analysis and calculation, software simulation and experimental device simulation, etc. The above methods cannot realize real-time identification and identification of cuttings beds in the underground. Moreover, with the adjustment of working conditions, the results of theoretical analysis and experimental device simulation are different from the real situation, which cannot truly reflect the characteristics of the downhole cuttings bed, which is not conducive to drilling construction

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Embodiment Construction

[0017] Hereinafter, a cuttings bed identification system according to the present invention will be described in detail with reference to the accompanying drawings and exemplary embodiments.

[0018] figure 1 A block diagram of a cuttings bed identification system according to an exemplary embodiment of the present invention is shown. figure 2 A schematic diagram of a cuttings bed identification device according to an exemplary embodiment of the present invention is shown, wherein, figure (a) is a diagram of a cuttings bed identification device, and figure (b) is a layout diagram of a signal transceiver in figure (a). image 3 A schematic diagram of a cuttings bed identification device according to another exemplary embodiment of the present invention is shown, wherein, figure (a) is a diagram of a cuttings bed identification device, and figure (b) is a side view of figure (a). Figure 4 A schematic diagram of the encoding result and a simulation diagram of the debris bed ac...

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Abstract

The invention provides a cuttings bed recognition system. The system comprises a cuttings bed recognition device, a signal transmission device, a signal decoding recognition device and a display device. The cuttings bed recognition device is arranged on a drill column and used for collecting cuttings bed information data, a coding rule is used for coding information data, and a coding result is obtained; the signal transmission device receives the coding result, and the coding result is transmitted to the signal decoding recognition device, the signal decoding recognition device is arranged onthe ground and can receive the coding result, according to the coding rule, the coding result is subjected to decoding recognition to obtain a decoding recognition result, and the display device receives the decoding recognition result and displays a cuttings bed simulated diagram according to the decoding recognition result. The cuttings bed recognition system can achieve real-time detection andreal-time processing on the cuttings bed, long-time rotation stop condition of the drill column can be avoided, and the drilling work efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of oil and gas exploration, and more specifically, to a cuttings bed identification system. Background technique [0002] In petroleum drilling, cuttings bed is one of the most common and most harmful problems in extended-reach horizontal well drilling. The hazards of the cuttings bed are as follows: slow down the drilling speed of the machine and the construction progress, increase the construction cost, damage the drilling tools due to the increased torque, and frequent accidents such as drill sticking. With the extensive deployment of extended-reach horizontal wells for offshore and onshore shale oil and gas drilling, a series of problems caused by cuttings beds have become more and more serious. [0003] At present, the identification of cuttings beds still relies on theoretical analysis and calculation, software simulation, and experimental device simulation. The above methods cannot realize real-time ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/00E21B47/002E21B47/12
CPCE21B47/00E21B47/12E21B47/002
Inventor 万夫磊邓虎陈俊斌张继川李雷明显森贾利春刘殿琛张林段慕白黄崇君
Owner CHINA NAT PETROLEUM CORP CHUANQING DRILLING ENG CO LTD
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