Well control system safety assessment method and system based on fuzzy comprehensive analysis

A technology of system security and fuzzy synthesis, applied in fuzzy logic-based systems, special data processing applications, instruments, etc., can solve problems such as failing to evaluate the safety of well control systems

Pending Publication Date: 2021-05-18
中海油安全技术服务有限公司
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Problems solved by technology

However, in the existing safety assessment methods for well control systems, the main method is to conduct independent inspection and evaluation of well control equipment, which can find out the faults and hidden dangers of the equipment to guide its maintenance and replacement, but fails to make a safety assessment of the entire well control system

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  • Well control system safety assessment method and system based on fuzzy comprehensive analysis
  • Well control system safety assessment method and system based on fuzzy comprehensive analysis
  • Well control system safety assessment method and system based on fuzzy comprehensive analysis

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Embodiment Construction

[0038] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0039] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0040] The invention provides a safety rating method for well control systems based on fuzzy comprehensive analysis, such as figure 2 The following steps are shown: Step A: sort out the well control equipment, and establish a hierarchical structure model of the well control equipment; Step B: use the 1-9 scaling method to perform pairwise comparison of indicators, construct a judgment matrix based on the comparison results, and calculate the same The weight of the index of the level to the index of the upper layer; Step C: sort out the relevant standards and regulations of the well control system, and determine the safety level classification criteria; Step D: use the fuzzy ...

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Abstract

The invention provides a well control system safety assessment method and system based on fuzzy comprehensive analysis. The method comprises the steps of establishing a well control equipment hierarchical structure model; comparing every two indexes by using a 1-9 scale method, constructing a judgment matrix according to a comparison result, and calculating the weight of the indexes of the same level to the indexes to which the upper layer belongs through the judgment matrix; determining a safety level division criterion according to a safety level division basis; constructing an evaluation system and establishing an evaluation matrix by adopting a fuzzy comprehensive evaluation method; and comprehensively evaluating the safety level of the well control system in combination with a weight calculation result and an evaluation system. According to the method, the safety levels of the well control system are divided by the analytic hierarchy process and the fuzzy comprehensive evaluation method, a new method is provided for dividing the safety levels of the well control system, the method is accurate, reliable, simple to operate and easy to use, the overall safety state of the well control system can be accurately mastered, and the safety of the well control system is ensured. The use of the well control equipment and the management party are guided to perform hierarchical management and control on the well control system, and the management level of the well control equipment is improved.

Description

technical field [0001] The invention belongs to the technical field of oil well control system security assessment, in particular to a well control system security assessment method and system based on fuzzy comprehensive analysis. Background technique [0002] Oil drilling well control is an extremely important link in the process of oil development, and it is also the guarantee of oil production safety. It is extremely important to conduct a scientific safety assessment of the well control system. However, in the existing safety assessment methods for well control systems, the main method is to conduct independent inspection and evaluation of well control equipment, which can find out the faults and hidden dangers of the equipment to guide its maintenance and replacement, but fails to make a safety assessment of the entire well control system . In order to accurately grasp the overall safety status of the well control system, guide the use of well control equipment and th...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06N7/04G06Q10/06G06Q50/02G06Q50/26
CPCG06F30/20G06Q10/06393G06Q50/02G06Q50/265G06N7/043
Inventor 张士超曹义威郭红张欣王鹏陈小伟徐光鹏李小波吴奇兵刘汉光谢俊成
Owner 中海油安全技术服务有限公司
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