An ultra-high pressure non-metallic core holder

A core holder, non-metallic technology, applied in the field of ultra-high pressure non-metallic core holders, can solve the problems of structural tightness and unreasonable structure, poor sealing performance, and inability to complete core CT scanning, etc., so as to reduce the service life , Reduce gas resistance, reduce the effect of pressure loss

Active Publication Date: 2019-02-12
JIANGSU UNIPAC SCI RES APP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned heterogeneous multi-layer core holder for CT scanning has poor sealing performance and can only test the general pressure of 20MPa. For the ultra-high pressure state, the unreasonable sealing and structure of the structure are reflected out, unable to complete core CT scan under 100Mpa

Method used

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  • An ultra-high pressure non-metallic core holder
  • An ultra-high pressure non-metallic core holder
  • An ultra-high pressure non-metallic core holder

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Embodiment Construction

[0036] The following examples can enable those skilled in the art to understand the present invention more comprehensively, but the present invention is not limited to the scope of the described examples.

[0037] Such as Figure 1 to Figure 7 The shown ultra-high pressure non-metallic core holder includes a holder body 1 , a head 2 , a head pressure cap 3 , a core 4 , a core plug 5 , a core plug plug 6 and an adjustment pressure cap 7 .

[0038] The main body 1 of the holder is a non-metallic cylindrical structure. There is a through hole 11 for accommodating the rock core in the middle of the main body 1 of the holder. Threads are provided on the outer walls of both ends of the main body 1 of the holder; the core 4 and the core plug 5 are placed in the holder There is a ring pressure gap between the through hole 11 of the holder body 1 and the inner wall of the holder body 1, and a heat source can be used to heat the holder in a circular manner.

[0039] The head 2 has a pa...

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Abstract

The invention relates to an ultrahigh-pressure nonmetal core holder. The ultrahigh-pressure nonmetal core holder is characterized in that a holder main body, a seal head, a seal head pressing cap, a core, a core plug, a core plug end cap and an adjusting pressing cap are included; the two ends of the holder main body are made of metal while the holder main body and an inner core plug which are made of nonmetal meet the working condition of CT scanning and magnetic resonance imaging, therefore, part interface machining is convenient, the requirement that a drum cannot be damaged after being disassembled and assembled many times is met, and the pressure value can reach up to 100 MPa. According to the design, not only is the experiment pressure increased, but also the pressure resistance is better and the structure is more reasonable on the basis that the leakproofness is guaranteed.

Description

technical field [0001] The invention relates to the field of oil and gas exploration and development, in particular to an ultra-high pressure non-metallic core holder. Background technique [0002] CT technology has developed rapidly and has been widely used in core analysis, core heterogeneity measurement, core sample selection, fracture quantitative analysis, online saturation measurement, flow experiment research, etc. as a conventional testing technology in core analysis. Visually characterize the pore structure, heterogeneity, and remaining oil distribution of the rock through quantitative and image analysis of the physical properties of the rock; conduct visual research on the displacement process to deeply understand the oil recovery mechanism, monitor fluid dispersion and channeling characteristics, and understand aggregation The impact of material flooding on increasing the swept area and revealing the mechanism of formation damage, etc. The CT technology can be us...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N23/02G01N24/08
CPCG01N23/02G01N24/081
Inventor 王彩鹏钟烨吴建何小兵刘永根
Owner JIANGSU UNIPAC SCI RES APP CO LTD
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