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Drilling process fault diagnosis method, system and equipment

A fault diagnosis and process data technology, applied in drilling equipment, drilling automatic control system, earthwork drilling and production, etc., can solve the problems of low reliability of diagnosis results and less consideration of time correlation between drilling parameters, etc., to achieve It has the effects of practicability and applicability, reducing economic and environmental losses, and ensuring safety

Active Publication Date: 2021-03-02
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Application Information

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Problems solved by technology

[0005] The main purpose of the present invention is to provide a method, system and equipment for fault diagnosis in the drilling process, aiming to solve the problems in the prior art that less consideration is given to the time correlation between drilling parameters and the reliability of the diagnosis results is low. technical problem

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  • Drilling process fault diagnosis method, system and equipment
  • Drilling process fault diagnosis method, system and equipment
  • Drilling process fault diagnosis method, system and equipment

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Embodiment Construction

[0050] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0051] refer to figure 1 , figure 1 It is a structural schematic diagram of the fault diagnosis equipment for the drilling process of the hardware operating environment involved in the solution of the embodiment of the present invention.

[0052] Such as figure 1 As shown, the drilling process fault diagnosis device may include: a processor 1001 , such as a central processing unit (Central Processing Unit, CPU), a communication bus 1002 , a user interface 1003 , a network interface 1004 , and a memory 1005 . Wherein, the communication bus 1002 is used to realize connection and communication between these components. The user interface 1003 may include a display screen (Display), and the optional user interface 1003 may also include a standard wired interface and a wireless interface. The network interface 1004 may...

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Abstract

The invention relates to the field of geological drilling engineering, and provides a drilling process fault diagnosis method which comprises the following steps: acquiring a drilling process data setthrough a drilling machine sensor, and preprocessing the drilling process data set to obtain a preprocessed drilling process data set; selecting and combining drilling process parameters of the preprocessed drilling process data set through a distance correlation analysis method to obtain k parameter combinations; performing time sequence feature extraction on each parameter combination accordingto Mann-Kendall trend test and approximate entropy to obtain a feature combination corresponding to each parameter combination; clustering the feature combinations through a density peak search clustering algorithm to obtain clustering results of the parameter combinations; and according to the clustering result of each parameter combination, performing fault diagnosis through a naive Bayesian classifier to obtain a drilling process fault diagnosis result. Fault diagnosis in the drilling process can be effectively achieved, the safety of the drilling process is guaranteed, and economic and environmental losses caused by faults are reduced.

Description

technical field [0001] The invention relates to the field of geological drilling engineering, in particular to a fault diagnosis method, system and equipment in the drilling process. Background technique [0002] The drilling process is an important industrial process for resource and energy exploration and exploitation. With the development of information technology, various process parameters reflecting the state of the drilling process can be collected in real time during the drilling process. However, during the drilling process, due to the complexity of the geological environment and the uncertainty of the driller's operation, the occurrence of drilling process failures such as lost circulation and well kick is usually unavoidable. If it cannot be discovered and dealt with in time, it may evolve into a major safety production accident, causing serious economic and environmental losses. According to statistics, the non-productive time caused by the failure of the drill...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06K9/62E21B47/06E21B47/00E21B44/04
CPCG06Q10/0639E21B44/04E21B47/06E21B47/00G06F18/2321G06F18/24155
Inventor 赖旭芝张正吴敏陈略峰陆承达杜胜
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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