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Crack evolution test method of floor strata solid-fluid coupling material

A technology of crack evolution and test method, which is applied in the field of crack evolution test of solid-fluid coupling materials in floor rocks, and can solve problems such as inability to accurately apply solid-fluid coupling model tests, failure to reflect the use of similar materials, and not similar simulation of solid-fluid coupling , to achieve good viscosity and sealing, convenient lubrication, and promote the effect of full fusion

Inactive Publication Date: 2014-04-02
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, the common geomechanical model tests in the field of similar materials are generally limited to simulating shallow brittle rocks. Because the surrounding rocks in deep wells are ignored from brittle to ductile and the permeability coefficient of similar materials, they are often unable to be accurately applied. Solid-fluid coupling model test
[0003] In the past, because the conditions for the use of similar materials were not specified, the actual effect of the research results in the simulation experiment was not obvious, and it could not reflect the application of similar materials in the actual simulation experiment. It was not representative, so it was not true. Solid-fluid coupling similar simulation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Weigh sand, paraffin wax, hydraulic oil, calcium carbonate, asphalt, and petroleum jelly in proportion to a total weight of 1000 grams. The weights of each component are: 790 grams of sand, 50 grams of paraffin, 39 grams of hydraulic oil, and 65 grams of calcium carbonate. 41 grams of petroleum jelly, 15 grams of asphalt;

[0032] The development method of solid-fluid coupling material for floor rock layer includes the following steps:

[0033] 1) Weigh out sand, paraffin, hydraulic oil, calcium carbonate, asphalt, and petroleum jelly in proportion;

[0034] 2) Put paraffin, hydraulic oil, asphalt, and petroleum jelly in a heating container at 110°C to melt and stir evenly;

[0035] 3) After mixing the sand and calcium carbonate in a mixer, put them into a heating container and stir together with melted paraffin, hydraulic oil, asphalt, and petroleum jelly, and stir at 100°C for 3 to 5 minutes;

[0036] 4) Put the mixed material into the standard test piece forming mold for comp...

Embodiment 2

[0039] Weigh sand, paraffin wax, hydraulic oil, calcium carbonate, asphalt, and petroleum jelly in proportion to a total weight of 1000 grams. The weight of each component is: sand 730 grams, paraffin wax 90 grams, hydraulic oil 49 grams, and calcium carbonate 75 grams. 50 grams of petroleum jelly, 6 grams of asphalt;

[0040] The development method of solid-fluid coupling material for floor rock layer includes the following steps:

[0041] 1) Weigh out sand, paraffin, hydraulic oil, calcium carbonate, asphalt, and petroleum jelly in proportion;

[0042] 2) Put paraffin, hydraulic oil, asphalt, and petroleum jelly in a heating container at 110°C to melt and stir evenly;

[0043] 3) After mixing the sand and calcium carbonate in a mixer, put them into a heating container and stir together with melted paraffin, hydraulic oil, asphalt, and petroleum jelly, and stir at 100°C for 3 to 5 minutes;

[0044] 4) Put the mixed material into the standard test piece forming mold for compaction, and...

Embodiment 3

[0047] Weigh sand, paraffin wax, hydraulic oil, calcium carbonate, asphalt, and petroleum jelly in proportion to a total weight of 1000 grams. The weight of each component is: 805 grams of sand, 75 grams of paraffin, 20 grams of hydraulic oil, and 65 grams of calcium carbonate. 25 grams of petroleum jelly, 10 grams of asphalt;

[0048] The development method of solid-fluid coupling material for floor rock layer includes the following steps:

[0049] 1) Weigh out sand, paraffin, hydraulic oil, calcium carbonate, asphalt, and petroleum jelly in proportion;

[0050] 2) Put paraffin, hydraulic oil, asphalt, and petroleum jelly in a heating container at 110°C to melt and stir evenly;

[0051] 3) After mixing the sand and calcium carbonate in a mixer, put them into a heating container and stir together with melted paraffin, hydraulic oil, asphalt, and petroleum jelly, and stir at 100°C for 3 to 5 minutes;

[0052] 4) Put the mixed material into the standard test piece forming mold for compac...

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Abstract

The present invention provides a crack evolution test method of a floor strata solid-fluid coupling material, wherein the problem that the similar solid-fluid coupling simulation can not be really achieved is solved with the present invention. The crack evolution test method comprises: 1, weighing sand, paraffin, hydraulic oil, asphalt, calcium carbonate and vaseline according to a certain ratio; 2, carrying out heating melting on the paraffin, the hydraulic oil, the asphalt and the vaseline, and uniformly stirring; 3, adding the sand and the calcium carbonate, and co-stirring; 4, carrying out tamping molding and demolding standing on the materials; 5, carrying out a mechanical property test and recording character features; 6, selecting the proximate ratio of the suitable materials; 7, repeatedly performing the steps 1-3 to complete the simulation floor; 8, placing the simulation floor in a floor rupture simulation test device; and 9, applying a water pressure, and observing and recording the damage law and the crack evolution features of the simulation floor. According to the present invention, with the developed material, the physical and mechanical properties of the similar material of the model test can be well maintained, the two conditions such as solid deformation and similar permeability can be met, and the good effect can be achieved in the crack evolution test.

Description

Technical field [0001] The invention belongs to the field of material science and technology, and relates to the development of a similar material for coupling model tests and its application in basic test research on fracture evolution characteristics, in particular to a fracture evolution test method for solid-fluid coupling materials of floor rocks. Background technique [0002] At present, the common research in the field of similar materials for geomechanical model tests is generally limited to the simulation of shallow brittle rocks. Because of the ignorance of the problems of the transition from brittleness to ductility of deep well surrounding rocks and the permeability coefficient of similar materials, they often cannot be accurately applied Solid-fluid coupling model test is in progress. [0003] Previous studies usually did not delineate the conditions for the use of similar materials, which made the actual effect of the research results in the simulation experiment not ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28G01N19/08
Inventor 张士川孙文斌江宁李杨杨张保良路畅
Owner SHANDONG UNIV OF SCI & TECH
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