A rotary dynamic sealing test device for a deepwater cementing head

By designing a rotating dynamic sealing test device for deepwater cementing heads, the performance verification problem of deepwater cementing heads under complex working conditions was solved, achieving efficient and low-cost sealing performance testing, and ensuring cementing quality and oil and gas well production efficiency.

CN122409073APending Publication Date: 2026-07-17CHINA NAT OFFSHORE OIL CORP +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA NAT OFFSHORE OIL CORP
Filing Date
2026-06-10
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The lack of a rotary dynamic seal testing device for deepwater cementing heads makes it impossible to verify their performance under complex working conditions, affecting cementing quality and oil and gas well production efficiency.

Method used

A rotating dynamic sealing test device for deep water cementing heads was designed, including a support platform, a power mechanism, a transmission mechanism, a rotating bracket, and a pressure mechanism. It simulates the rotation and high-pressure environment of deep water cementing heads, and adjusts the rotation speed and pressure load through a controller to achieve sealing performance testing under complex working conditions.

Benefits of technology

This device can verify the rotational dynamic sealing performance of cement heads in deep water cementing. It is easy to operate, low in cost, and provides good simulation test results, ensuring the authenticity and accuracy of the test.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a rotary dynamic sealing test device for a deepwater cementing head, which comprises a support table, a power mechanism, a transmission mechanism, a rotary support and a pressing mechanism arranged in sequence on the support table, the deepwater cementing head is used for being laid horizontally on the rotary support, an input shaft of the transmission mechanism is connected with an output shaft of the power mechanism, an output shaft is used for being connected with the deepwater cementing head, the pressing mechanism is used for being connected with the deepwater cementing head and is used for pressing the deepwater cementing head. The application can verify the rotary dynamic sealing performance of the deepwater cementing head under complex working conditions, is convenient to operate, has low manufacturing cost and has good simulation test effect.
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