One-hole multi-line sealing device and method for high-temperature probe in thickened oil thermal recovery experiment

Abstract

The invention belongs to the technical field of thickened oil thermal recovery experiment equipment, and discloses a one-hole multi-line sealing device and method for a high-temperature probe in a thickened oil thermal recovery experiment. A plurality of temperature measuring columns are arranged; the plurality of temperature measuring columns penetrate through a sealing gland, an anti-rotation pressing board, a deformation cone and a sealing seat, and are locked; the plurality of temperature measuring columns are fixed through the anti-rotation pressing board, the sealing seat is provided with corresponding notches, and the sealing seat and the anti-rotation pressing board are limited and fixed through the corresponding notches; and the sealing gland compresses the deformation cone through downward movement, and the deformation cone is extruded with the sealing conical surface of the sealing seat through downward movement under stress. The sealing device is simple in structure and good in universality, and can be easily replaced to different high-voltage devices through a conversion joint; meanwhile, the temperature resistance is higher, resistance to the temperature of 1000 DEG Ccan be realized, and through the higher temperature resistance-pressure sealing technology, the deep research of the stratum depth is effectively expanded. The sealing device breaks through the temperature limitation of the existing related instruments and equipment, and expands the range of scientific research more widely.

Description

technical field [0001] The invention belongs to the technical field of heavy oil thermal recovery experimental equipment, and in particular relates to a one-hole multi-line sealing device and method for high-temperature probes in heavy oil thermal recovery experiments. Background technique [0002] At present, the closest existing technology: the existing sealing pipeline technology often uses non-metal as the sealing medium, and the temperature resistance does not exceed 260°C. are greatly restricted. At present, in the fields of exploration and development of petroleum, chemical industry and energy, it is necessary to carry out some laboratory-scale research experiments that simulate the scene frequently, carry out simulations of some related theories and experimental models, and often encounter some testing-related problems , the most common is the test and monitoring of temperature and pressure, which requires the hardware of the equipment to penetrate into the interior...

AI Technical Summary

Problems solved by technology

[0003] To sum up, the problem existing in the existing technology is: when the research conditions continue to increase and the formation depth continues to increase, the O-ring and engineering plastics can no longer reach the working temperature of the equipment required for the experiment in terms of sealing. In the field of natural gas, especially when carrying out fire flooding, it is subjected to higher temperatures, at least 600-1000 ° C, and the use of conventional sealing structures and seals will lead to failure of related experiments

[0005] Therefore, to solve the high-temperature one-hole multi-line sealing required for high-temperature tests, it is necessary to break through the original limitations in materials and structures. The coming metal is difficult to compress and realize the sealing at ultra-high temperature

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