Automatic parking alarm device and method for preventing winch accident

By designing an automatic shutdown alarm device in oil well logging, automatic shutdown and alarm are achieved through the contact between the wellhead sludge blower and the trigger switch. This solves the problem of the winch control system relying on human experience and improves the safety and efficiency of well logging.

CN116357296BActive Publication Date: 2026-07-21CHINA NAT PETROLEUM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA NAT PETROLEUM CORP
Filing Date
2021-12-27
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In existing oil well logging processes, winch control systems rely on human experience, resulting in long logging cycles and a high risk of serious accidents such as cable breakage, instrument falling into the well, and personnel injury. Furthermore, there is a lack of automatic shutdown and alarm devices in case of cable abnormalities.

Method used

Design an automatic parking alarm device, including a base, a wellhead sludge blower, and a trigger switch. The control unit is activated by the contact between the wellhead sludge blower and the trigger switch to realize automatic parking and alarm. Combined with an audible and visual alarm, the device can wake up the operator.

Benefits of technology

It enables automatic shutdown in case of cable abnormalities, reducing accidents, improving logging efficiency, ensuring the safety of operators, and preventing equipment damage.

✦ Generated by Eureka AI based on patent content.

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    Figure CN116357296B_ABST
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Abstract

The application belongs to the technical field of oil logging, and discloses an automatic parking alarm device and method for preventing winch accidents. The device comprises a base, a wellhead blowing and mud scraping device, a trigger switch and a control unit. The base is a hollow columnar structure, and an opening is arranged on one side of the columnar structure. The wellhead blowing and mud scraping device comprises two parts, each part comprising a bottom plate and a main body structure. The main body structure is arranged above the bottom plate, and the main body structure is fixedly connected with the bottom plate. The bottom plate is arranged on the top of the base and is in contact with the top surface of the base. At least one air inlet hole is arranged on each main body structure. A semicircular through hole with the same radius is arranged at the contact position between the top of each part. The two parts are matched to form a complete wellhead blowing and mud scraping device. The trigger switch is arranged on the upper part of the base and is in contact with the bottom surface of the wellhead blowing and mud scraping device, thereby ensuring the safety of the operating personnel and improving the logging efficiency.
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