Visible rock core clamp

A core holder and core technology, applied in the direction of scientific instruments, measuring devices, suspension and porous material analysis, etc., can solve problems such as wrong test data, test failure, and inability to observe

Active Publication Date: 2014-05-21
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in various laboratories in the oil field, conventional rock core clamping equipment is used to simulate the stress state of the rock in the formation. The simulation equipment uses a metal cylinder to bear pressure, a rubber cylinder to wrap the core and the peripher

Method used

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  • Visible rock core clamp

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Embodiment

[0011] The visible core holder consists of a top wire 1, an adjusting sleeve 2, an adjusting plunger 3, an upstream pressure cap 4, an upstream sealing disc 5, a transparent cylinder 6, an outer cylinder 7, a transparent rubber cylinder 8, a downstream pressure cap 10, Downstream sealing disc 11 and stop plunger 12 consist of:

[0012] The rock core 9 is located in the transparent rubber tube 8, and the adjustment plunger 3 and the stop plunger 12 stretch into the two ends of the transparent rubber tube 8 to clamp and fix the rock core 9. The outer peripheral surface of the adjusting plunger 3 is fitted with the upstream sealing disc 5 and the adjusting sleeve 2, the inner end surface of the upstream sealing disc 5 is provided with a medium line groove I 14, the inner end of the outer peripheral surface of the adjusting sleeve 2 is provided with a circumferential boss, and the adjusting sleeve 2 The screw hole on the outer end surface is connected with the top screw 1. The ou...

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Abstract

The invention discloses a visible rock core clamp which is designed to realize that a rock core is visible during a rock seepage simulation experiment so as to meet requirements on scientific research and production. The visible rock core clamp mainly comprises a transparent rubber barrel covering the rock core, an adjustment plunger and a stopping plunger which are used for clamping the rock core, a transparent barrel and an outer barrel which are used for sleeving the transparent rubber barrel, an upstream sealing disk and an adjustment sleeve which are used for sleeving the adjustment plunger, a downstream sealing disk for sleeving the stopping plunger, and an upstream pressure cap and a downstream pressure cap which are used for locking the clamp. The visible rock core clamp disclosed by the invention can be applied to the rock core clamping in the rock seepage simulation experiment in the field of petroleum geology; during experiment, a user can directly observe the experiment condition of the rock core through the transparent barrel and the transparent rubber barrel, so that test failures and test data errors which are caused by medium crossflow can be avoided; a photographing device can be used for monitoring the experiment; an ultraviolet light source can be used for irradiating the rock core, so that the fluorescent reaction of petroleum on the surface of the rock core can be observed, and all experiment researches can be implemented.

Description

technical field [0001] The invention relates to a visible rock core holder, which belongs to the technical field of petroleum geology. Background technique [0002] At present, in various laboratories in the oil field, conventional rock core clamping equipment is used to simulate the stress state of the rock in the formation. The simulation equipment uses a metal cylinder to bear pressure, a rubber cylinder to wrap the core and the periphery of the rubber cylinder to apply pressure. The core in the core is completely sealed in the holder and cannot be observed by the naked eye. If the holder is not firm, the medium will flow through the gap between the rubber tube and the core, resulting in test failure or wrong test data. Contents of the invention [0003] The purpose of the present invention is to provide a visual core holder, which can realize naked eye visualization during core seepage simulation experiments, so as to meet the needs of scientific research and producti...

Claims

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Application Information

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IPC IPC(8): G01N15/08
Inventor 杨华张文正李晓东李剑锋邵东亮吴凯侯立群李善鹏郝佳刘飞
Owner PETROCHINA CO LTD
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