冻土层钻井用隔热套管的隔热性能测试装置

By designing a thermal insulation performance testing device suitable for drilling in permafrost, the problems of unrealistic simulation and poor adaptability of existing devices have been solved. This enables accurate performance evaluation and design guidance of thermal insulation casing in permafrost, ensuring the safe development of oil and gas resources in cold regions such as the Arctic.

CN121955078BActive Publication Date: 2026-07-17CHINA UNIV OF GEOSCIENCES (BEIJING) +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA UNIV OF GEOSCIENCES (BEIJING)
Filing Date
2026-03-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing testing equipment cannot accurately simulate the real environment of Arctic permafrost, is difficult to adapt to insulation sleeves and couplings of different diameters, and cannot accurately quantify the heat transfer effect of couplings, which poses challenges to the design and application of insulation sleeves in permafrost drilling.

Method used

A thermal insulation performance testing device for drilling in permafrost was designed, including a support module, a simulation box, a heat flow module, and a temperature measurement module. It can simulate the heat transfer process of the thermal insulation sleeve under real permafrost conditions and accurately monitor the temperature change around the thermal insulation sleeve through multiple temperature detection devices. It is suitable for thermal insulation sleeves of different diameters and types.

Benefits of technology

It enables a scientific and quantitative assessment of the thermal insulation performance of thermal insulation sleeves in permafrost, providing reliable performance evaluation and engineering application guidance, and ensuring the safe and efficient development of oil and gas resources in cold regions.

✦ Generated by Eureka AI based on patent content.

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Abstract

本申请公开了一种冻土层钻井用隔热套管的隔热性能测试装置，包括支撑模块、模拟箱、热流体模块和测温模块；支撑模块适于支撑隔热套管；模拟箱内适于装填模拟冻土，隔热套管埋设于模拟冻土中；热流体模块适于向隔热套管内循环通入热流体；测温模块包括固定架和多个活动件；固定架设置于模拟箱内，多个活动件可移动地设置于固定架上，并围绕隔热套管的外周间隔设置；活动件形成有适于与隔热套管接触的接触头，活动件相对固定架移动以调整接触头的径向位置；其中，活动件上设置有多个温度检测件，以检测隔热套管周围的模拟冻土的温度。本申请可实现科学量化隔热套管的隔热性能，有效解决现有测试装置模拟不真实、适配性差、数据不准等问题。
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Citation Information

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