Integrated experimental apparatus and method for pressure-simmering-injection-production

By designing an integrated experimental device for fracturing, simmering, injection, and production of shale oil reservoirs, the system can monitor the fracturing, simmering, and injection-production processes in real time, solving the problem that existing technologies cannot monitor fracture generation and seepage patterns, and improving the efficiency of shale oil development.

CN122084480APending Publication Date: 2026-05-26CHINA PETROLEUM & CHEMICAL CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEMICAL CORP
Filing Date
2024-11-25
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing technologies cannot monitor the fracture generation process during the integrated pressure-steaming-injection-production process of shale oil reservoirs, cannot simulate the gas injection and liquid fracturing process, and cannot monitor the seepage pattern during the steam well production process, resulting in low shale oil development efficiency.

Method used

Design an integrated experimental device for fracturing, simmering, injection and production, including a core holder, a triaxial loader, a pressure regulating mechanism, an injection mechanism, a heating mechanism, a CT system and a nuclear magnetic resonance system, which can simulate the fracturing, simmering and injection and production process, and monitor the fracture generation and seepage patterns in real time.

Benefits of technology

By simulating the rock fracturing process, the seepage limit capacity of fracturing can be revealed, the produced volume can be accurately calculated, the oilfield recovery rate can be improved, and the field fracturing construction can be guided.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention provides an integrated experimental device and method for pressure-steaming-injection-production, belonging to the field of petroleum extraction technology. It includes: a core holder for holding the core sample to be tested; a triaxial loader for applying pressure in three mutually perpendicular directions to the core holder; a pressure regulating mechanism for adjusting the pressure value inside the core holder; an injection mechanism for injecting fracturing fluid and displacement fluid into the core holder; a heating mechanism for adjusting the temperature value of the core holder; a CT system for acquiring core fracture images during the fracturing experiment; a nuclear magnetic resonance (NMR) system for acquiring the NMR T2 spectra of the core sample before and after the fluid injection and displacement experiment; and a metering mechanism for metering the produced fluid from the core holder after the fluid injection and displacement experiment. This invention has a simple structure and can monitor the fracture generation process during the experiment, simulate the gas injection and fluid fracturing process, and monitor the seepage patterns during the well steaming and oil production process.
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