A wellhead tool connection device

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By using threaded connections and sealing gaskets between the wellhead sleeve and the installation sleeve, the oil leakage problem during docking of the wellhead tool connection device was solved, enabling fast, stable connection and efficient operation, thus improving the safety and operational efficiency of the wellhead tool.

CN224282580UActive Publication Date: 2026-05-26HAIMEN BEILESTONE MASCH CO LTD

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: HAIMEN BEILESTONE MASCH CO LTD
Filing Date: 2025-09-30
Publication Date: 2026-05-26

Application Information

Patent Timeline

30 Sep 2025

Application

26 May 2026

Publication

CN224282580U

IPC: E21B33/03

AI Tagging

Application Domain

Sealing/packing

Technology Topics

Oil field Screw thread

Technical Efficacy Phrases

Quick tighteningquick release

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AI Technical Summary

Technical Problem

Existing wellhead tool connection devices are prone to gaps during docking, leading to oil leaks, and cannot achieve stable installation, thus failing to meet usage requirements.

Method used

The wellhead sleeve and the installation sleeve are designed with a threaded connection. Combined with a sealing gasket and a flange, it can be quickly tightened or disassembled through the external thread groove and handle. High-strength alloy steel and composite sealing gaskets are used to ensure sealing.

Benefits of technology

It enables a quick and stable connection between wellhead tools and the wellhead, preventing oil leakage, improving operational efficiency and equipment versatility, and simplifying the operation process.

✦ Generated by Eureka AI based on patent content.

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Figure CN224282580U_ABST

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Abstract

This utility model relates to a wellhead tool connection device, belonging to the technical field of oilfield operation tools. It includes a mounting plate and a mounting base disposed at the bottom of the mounting plate. An installation structure for installation at a wellhead is provided between the mounting plate and the mounting base. The installation structure includes a wellhead sleeve fixedly connected to the top of the mounting base, and the outer surface of the wellhead sleeve has an external threaded groove. This wellhead tool connection device achieves connection to the wellhead through the threaded engagement of the wellhead sleeve and the mounting sleeve. This design completely changes the traditional multi-bolt flange connection method. Operators only need to rotate the mounting sleeve and use its external handle to quickly complete the fastening or disassembly of the entire device to the wellhead. This greatly simplifies the operation process, saves a significant amount of installation and disassembly time, and is particularly suitable for operation scenarios requiring frequent wellhead tool changes, significantly improving operational efficiency.

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