A pulse permeameter

CN224317477UActive Publication Date: 2026-06-02刘罡
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
刘罡
Filing Date
2025-09-03
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing permeability measurement devices are inaccurate and unstable, especially the downstream unpressurized detection method, which leads to large errors. Insufficient sealing of the clamps leads to gas leakage.

Method used

A pulse permeameter was designed, which adopts a confining pressure pump and a clamp structure. It detects rock samples by applying pressure to both ends and using a pulse pressure compensation method. It combines differential pressure sensor and pressure sensor for accurate measurement and ensures the sealing of the clamp.

Benefits of technology

It improves the accuracy and stability of permeability detection, and is particularly suitable for rock sample permeability detection, solving the problems of inaccurate detection accuracy and insufficient sealing in existing devices.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to a pulse permeability meter, belonging to the field of oil and gas exploration and development technology. The pulse permeability meter includes a confining pressure pump, a clamp, an upper standard chamber, a lower standard chamber, a gas storage container, and a gas source pump. The inlet end of the clamp is sequentially connected to the upper standard chamber, a pressure regulating valve, a gas storage container, a shut-off valve, and the gas source pump via an inlet valve. The outlet end of the clamp is connected to the lower standard chamber. The outside of the clamp is connected to the confining pressure pump via a confining pressure valve. A parallel pipeline is connected between the inlet valve and the upper standard chamber. The end of the parallel pipeline is connected to the outlet end of the clamp. This pulse permeability meter has a compact structure and ingenious design, solving the problem of relatively inaccurate detection accuracy when using a closed method for downstream rock sample detection in existing detection methods. It is particularly suitable for the needs of rock sample permeability detection.
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