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A kind of plugging agent for geological exploration and preparation method thereof

A technology of geological exploration and plugging agent, applied in the field of geological exploration, can solve problems such as burning drills, buried drills, rock powder deposition, etc., and achieve the effects of reducing production costs, good sealing effect, convenient and safe use

Active Publication Date: 2018-08-21
钟原
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In geological exploration, water gushing is often encountered in boreholes. If effective measures are not taken in time, the gushing water will dilute the mud, causing rock powder to deposit at the bottom of the hole, resulting in burning and burying accidents

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A plugging agent for geological exploration, which is composed of the following raw materials in parts by weight: 40 parts of sulphoaluminate cement, 5 parts of slag powder, 8 parts of condensed silica fume, 5 parts of calcium sulphoaluminate powder, magnesium silicate 8 parts of aluminum, 1 part of sodium hexametaphosphate.

[0024] The specific surface area of ​​the slag powder is ≥400m 2 / kg, activity index N≥95%, loss on ignition ≤3%.

[0025] The specific surface area of ​​the condensed silica fume ≥ 190000cm 2 / g.

[0026] The pH value of the magnesium aluminum silicate is 8.0-9.0, and the water content is less than 8%.

[0027] A method for preparing a plugging agent for geological exploration, which is prepared by the following steps:

[0028] 1) Take the raw materials by weight: 40 parts of sulphoaluminate cement, 5 parts of slag powder, 8 parts of condensed silica fume, 5 parts of calcium sulphoaluminate powder, 8 parts of magnesium aluminum silicate, 1 pa...

Embodiment 2

[0034] A plugging agent for geological exploration, which is composed of the following raw materials in parts by weight: 38 parts of sulphoaluminate cement, 6 parts of slag powder, 9 parts of condensed silica fume, 7 parts of calcium sulphoaluminate powder, magnesium silicate 7 parts of aluminum, 2 parts of sodium hexametaphosphate.

[0035] A method for preparing a plugging agent for geological exploration, which is prepared by the following steps:

[0036] 1) Take the raw materials by weight: 38 parts of sulphoaluminate cement, 6 parts of slag powder, 9 parts of condensed silica fume, 7 parts of calcium sulphoaluminate powder, 7 parts of magnesium aluminum silicate, 2 parts of sodium hexametaphosphate ;

[0037] 2) Grinding and mixing sulfoaluminate cement, slag powder, calcium sulfoaluminate powder and magnesium aluminum silicate for 8 minutes to obtain raw material 1;

[0038] 3) Add sodium hexametaphosphate to raw material 1, and grind for 15 minutes to obtain raw mater...

Embodiment 3

[0042] A plugging agent for geological exploration, which is composed of the following raw materials in parts by weight: 35 parts of sulphoaluminate cement, 8 parts of slag powder, 10 parts of condensed silica fume, 8 parts of calcium sulphoaluminate powder, magnesium silicate 6 parts of aluminum, 2 parts of sodium hexametaphosphate.

[0043] A method for preparing a plugging agent for geological exploration, which is prepared by the following steps:

[0044] 1) Take the raw materials by weight: 35 parts of sulphoaluminate cement, 8 parts of slag powder, 10 parts of condensed silica fume, 8 parts of calcium sulphoaluminate powder, 6 parts of magnesium aluminum silicate, 2 parts of sodium hexametaphosphate ;

[0045] 2) Grinding and mixing sulfoaluminate cement, slag powder, calcium sulfoaluminate powder and magnesium aluminum silicate for 8 minutes to obtain raw material 1;

[0046] 3) Add sodium hexametaphosphate to raw material 1, and grind for 15 minutes to obtain raw mat...

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Abstract

The invention discloses a blocking agent for geological exploration. The blocking agent for geological exploration is prepared from, by weight, 30-40 parts of sulfur aluminate cement, 5-10 parts of slag powder, 8-12 parts of condensed silica fume, 5-10 parts of calcium sulphoaluminate powder, 4-8 parts of aluminum-magnesium silicate and 1-3 parts of sodium hexametaphosphate. The blocking agent for geological exploration can rapidly solidify, volume expansion is larger in the solidification process, the agent firmly cements with a rock layer together, the cementing strength is higher, the strength is as high as 0.5-1 MPa after 1 day and is as high as 2-3 MPa after 7 days, a blocking effect is good, and the blocking agent is convenient and safe to use and is non-toxic, harmless and non-pollution. The slag powder is used, a large number of industrial by-products are consumed, the production cost is reduced, and the blocking agent has good economic and social benefits.

Description

technical field [0001] The invention belongs to the technical field of geological exploration, and in particular relates to a plugging agent for geological exploration and a preparation method thereof. Background technique [0002] Borehole water gushing refers to the phenomenon that the confined water in an aquifer is discharged to the ground through the borehole during the drilling process. In geological exploration, we often encounter the phenomenon of water gushing in boreholes. If effective measures are not taken in time, the gushing water will dilute the mud, making rock powder deposited at the bottom of the hole, resulting in drill burning and burying accidents. Cement is a kind of good cementitious material, not only widely used in construction industry, but also began to use cement for drilling wall plugging in drilling engineering as early as 1940s. The plugging of borehole retaining wall with cement is to inject cement slurry into the borehole, and make it enter ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/06C09K8/46
CPCC04B28/06C04B2111/00724C09K8/46C04B18/141C04B18/146C04B22/148C04B14/042C04B22/16
Inventor 钟原许杰丁波
Owner 钟原
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