Drill bit performance evaluation and model selection method

A performance and drill bit technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of overlapping evaluation information, intricate correlation, inaccurate evaluation and selection methods, etc., and achieve accurate drill bit performance analysis Effect

Pending Publication Date: 2021-10-15
WUHAN UNIV OF SCI & TECH
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  • Claims
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Problems solved by technology

However, each bit performance evaluation index does not exist independently, but there are intricate correlations
In the evaluation process, the correlation between the indicators will cause the ev

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  • Drill bit performance evaluation and model selection method

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Embodiment Construction

[0044] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0045] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.

[0046] Such as figure 1 As shown, the embodiment of the present application proposes a method for evaluating and selecting drill bit performance, including:

[0047] Step 101: Collect performance p...

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Abstract

The invention provides a drill bit performance evaluation and model selection method, and the method comprises the following steps: acquiring performance parameters of various drill bits, and constructing a training set; calculating a correlation coefficient between data in the performance parameters of each drill bit through the training set; based on the correlation coefficient, determining the contribution rate of each data in the performance parameters; determining principal component data in the data of the performance parameters based on the contribution rate; and obtaining drill bit performance parameters based on the principal component data. According to the drill bit performance evaluation and model selection method, the principal component data used for analyzing the drill bit performance is determined based on the correlation coefficient and the contribution rate, the collected performance parameter data can be screened and processed, the serious correlation between the original data is eliminated, and the drill bit performance analysis is more accurate.

Description

technical field [0001] The invention relates to the field of drilling, in particular to a method for evaluating and selecting the performance of a drill bit. Background technique [0002] Reasonable selection of drill bits is of great significance to both safe drilling and reducing the total cost of drilling. Drill bit performance evaluation is an important part of drill bit selection, and the quality of the evaluation method directly affects the rationality of the drill bit selection results. Predecessors have done a lot of research on the performance evaluation of drill bits, and put forward a variety of evaluation methods, such as: per-meter drilling cost method, specific energy method, fuzzy comprehensive evaluation method, gray correlation analysis method, attribute hierarchy analysis method, neural network method, Stratigraphic comprehensive coefficient method, etc. These methods mostly use several indicators such as drill footage, drill life, ROP, and drill cost as ...

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Application Information

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IPC IPC(8): G06F30/17G06K9/62G06F111/10G06F119/14
CPCG06F30/17G06F2111/10G06F2119/14G06F18/2135
Inventor 但斌斌王伟陈奎生曾良才容芷君熊凌牛清勇陈刚邓思洪都李平龚昌运乔瀚屈朋举杜涛蒋麒麟李国锋朱潘蕾
Owner WUHAN UNIV OF SCI & TECH
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