Monitoring system and method for wellsite equipment

Patent metadata

Field	Value
Publication number	US-12084946-B2
Application number	US-202117321607-A
Country	US
Kind code	B2
Filing date	May 17, 2021
Priority date	Feb 18, 2021
Publication date	Sep 10, 2024
Grant date	Sep 10, 2024

Abstract

The present disclosure relates to a monitoring system and method for wellsite equipment, used for monitoring abnormities in the monitoring area of wellsite equipment, wherein the monitoring system for wellsite equipment comprises:a dynamic capturing module comprising a video acquisition unit and a dynamic analysis unit, wherein, the video acquisition unit acquires video signals in the monitoring area of wellsite equipment, and the motion analysis unit analyzes and determines whether there is abnormal dynamic activity in the monitoring area of wellsite equipment based on acquired video signals;a temperature detection module comprising a temperature acquisition unit and a temperature analysis unit, wherein the temperature acquisition unit acquires temperature distribution in the monitoring area of wellsite equipment, and the temperature analysis unit analyzes and obtains temperature information in the monitoring area of wellsite equipment based on acquired temperature distribution, and determines whether there is temperature anomaly in the monitoring area of wellsite equipment based on the temperature information; andan information processing module configured to determine type of fault in the monitoring area of wellsite equipment based on considering the abnormal dynamic activity and the temperature anomaly separately or both.

First claim

We claim:

1. A monitoring system for detecting abnormities in wellsite equipment in a monitoring area, the system comprising:
a dynamic capturing module comprising a video acquisition unit and a dynamic analysis unit, wherein the video acquisition unit acquires a current video signal of the monitoring area, and the dynamic analysis unit compares the current video signal with a previously acquired video signal;
a temperature detection module comprising a temperature acquisition unit and a temperature analysis unit, wherein the temperature acquisition unit comprises a thermal imaging device, the temperature acquisition unit acquires a temperature distribution of the monitoring area, and the temperature analysis unit obtains current temperature information about the monitoring area based on the temperature distribution, wherein the current temperature information comprises a highest temperature, a lowest temperature, or an average temperature in the monitoring area, and a position in the monitoring area corresponding to the highest temperature or the lowest temperature; and
an information processing module that receives output of the dynamic capturing module and the temperature detection module.

2. The monitoring system of claim 1 , wherein the dynamic analysis unit calculates a number of changed pixels in the current video signal and determines that there is an abnormal activity when the number of changed pixels in the current video signal is greater than a preset threshold number of pixels.

3. The monitoring system of claim 2 , wherein the previously acquired video signal is a video signal of the monitoring area with wellsite equipment under normal operations.

4. The monitoring system of claim 1 , wherein the dynamic capturing module further comprises a video signal repository in which the previously acquired video signal is stored.

5. The monitoring system of claim 4 , wherein the dynamic analysis unit is configured to compare a pixel in the current video signal with a pixel at a corresponding position in the previously acquired video signal, and determines that there is a changed pixel in the current video signal when a change from the pixel at the corresponding position exceeds a preset threshold of pixel deviation.

6. The monitoring system of claim 1 , wherein the temperature analysis unit is configured to determine that there is a temperature anomaly in the monitoring area and a corresponding position at which the temperature anomaly occurs when the highest temperature, the lowest temperature, or the average temperature exceeds a preset threshold temperature.

7. The monitoring system of claim 6 , wherein the preset threshold temperature is determined with reference to a temperature of wellsite equipment under normal operations and a corresponding ambient temperature in the monitoring area.

8. The monitoring system of claim 1 , wherein the temperature detection module further comprises a temperature information repository in which previously acquired temperature information is stored.

9. The monitoring system of claim 8 , wherein the temperature analysis unit compares the current temperature information with the previously acquired temperature information stored in the temperature information repository, and determines that there is a temperature anomaly in the monitoring area when a difference in the highest temperature, the lowest temperature, or the average temperature exceeds a preset threshold of temperature deviation.

10. The monitoring system of claim 1 , wherein the output received by the information processing module comprises information about a position of an abnormal activity and that of a temperature anomaly.

11. The monitoring system of claim 1 , wherein the monitoring system further comprises an alarm module.

12. The monitoring system of claim 1 , wherein the monitoring system further comprises a display unit configured to display the current video signal and the temperature distribution.

13. A method of monitoring abnormities in wellsite equipment in a monitoring area, the method comprising the following steps:
acquiring a current video signal of the monitoring area;
determining whether there is an abnormal activity in the monitoring area by comparing the current video signal with a previously acquired video signal;
acquiring a temperature distribution of the monitoring area by thermal imaging;
analyzing the temperature distribution and obtaining current temperature information of the monitoring area, wherein the current temperature information comprises a highest temperature, a lowest temperature, or an average temperature in the monitoring area, and a position in the monitoring area corresponding to the highest temperature or the lowest temperature;
determining whether there is a temperature anomaly in the monitoring area; and
determining a fault type in the monitoring area, wherein the fault type comprises operating temperature abnormity, abnormal vibrations, and pierced pipelines.

14. The method of claim 13 , wherein the step of determining whether there is an abnormal activity comprises calculating a number of changed pixels in the current video signal, and determining that there is an abnormal activity when a number of changed pixels in the current video signal exceeds a preset threshold number of pixels.

15. The method of claim 14 , wherein the previously acquired video signal is a video signal of the monitoring area with wellsite equipment under normal operations.

16. The method of claim 13 , wherein the step of determining whether there is an abnormal activity comprises comparing a pixel in the current video signal with a pixel at a corresponding position in the previously acquired video signal, and determining that there is a changed pixel in the current video signal when a change from the pixel at the corresponding position exceeds a preset threshold of pixel deviation.

17. The method of claim 13 , wherein the step of determining whether there is a temperature anomaly comprises determining that there is a temperature anomaly in the monitoring area and a corresponding position where the temperature anomaly occurs when the highest temperature, the lowest temperature, or the average temperature exceeds a preset threshold temperature.

18. The method of claim 17 , wherein the threshold temperature is determined with reference to a temperature of wellsite equipment under normal operations and a corresponding ambient temperature in the monitoring area.

19. The method of claim 13 , wherein the step of determining whether there is a temperature anomaly comprises comparing the current temperature information with previously acquired temperature information, and determining that there is a temperature anomaly in the monitoring area when a difference in the highest temperature, the lowest temperature, or the average temperature exceeds a preset threshold of temperature deviation.

20. The method of claim 13 , wherein the step of determining a fault type comprises determining if there is coincidence in position between the abnormal activity and the temperature anomaly.

Assignees

• Yantai Jereh Petroleum Equipment & Technologies Co Ltd

Inventors

• Li Liang
• Li Shouzhe
• Mao Zhuqing
• Zhang Jun
• Liu Kaishen
• Zhang Pengyuan

Classifications

• G01K3/06

  in respect of space · CPC title

• G01K2003/145

  Hotspot localization · CPC title

• E21B41/0021

  Safety devices, e.g. for preventing small objects from falling into the borehole · CPC title

• G06V20/41

  Higher-level, semantic clustering, classification or understanding of video scenes, e.g. detection, labelling or Markovian modelling of sport events or news items (segmenting video sequences G06V20/49) · CPC title

• G08B21/182

  Level alarms, e.g. alarms responsive to variables exceeding a threshold · CPC title