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Self-dissolving material and preparation method thereof

A self-dissolving and raw material technology, applied in the direction of chemical instruments and methods, drilling compositions, etc., can solve the problems of reducing production efficiency, hindering, increasing operating costs, etc., and achieve the effect of improving production efficiency and high mechanical strength

Active Publication Date: 2017-03-01
BEIJING ZHONGKE JINTENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These materials will hinder the operation of the next step after completing their mission. In the past, the flowback process was usually used to return them to the ground, which greatly increased operating costs and reduced production efficiency.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Fully mix magnesium powder, iron powder and diatomite micropowder according to the mass ratio of 4:4:2, and the particle size of each powder is below 325 mesh. After mixing, an appropriate amount of polyvinyl alcohol binder is added, and then the mixed powder is loaded into a mold and pre-pressed into a green body on a press. Put the body into a high-temperature furnace and sinter at 1200°C for 2 hours under the protection of an argon atmosphere to obtain a dense finished product.

Embodiment 2

[0020] The aluminum powder, iron powder and zeolite powder are fully mixed according to the mass ratio of 5:4:1, and the particle size of each powder is below 325 mesh. After mixing, an appropriate amount of polyvinyl alcohol binder is added, and then the mixed powder is loaded into a mold and pre-pressed into a green body on a press. Put the body into a high-temperature furnace and sinter at 800°C for 2 hours under the protection of an argon atmosphere to obtain a dense finished product.

Embodiment 3

[0022] Fully mix copper powder, iron powder, aluminum powder and mica powder according to the mass ratio of 3:3:3:1, and the particle size of each powder is below 325 mesh. After mixing, an appropriate amount of polyvinyl alcohol binder is added, and then the mixed powder is loaded into a mold and pre-pressed into a green body on a press. Put the body into a high-temperature furnace and sinter at 1000°C for 2 hours under the protection of a nitrogen atmosphere to obtain a dense finished product.

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PUM

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Abstract

The invention discloses a self-dissolving material and a preparation method thereof, and the preparation method comprises the following steps: (1) providing at least two metal materials and ceramic powder with porous or multilayer microstructure as raw materials; and (2) compounding the raw materials to from the self-dissolving material by powder metallurgy process or melting and casting forming process. The self-dissolving material not only has high mechanical strength, but also can be automatically dissolved in an electrolyte solution, so that the self-dissolving material can be widely applied to the development of oil and gas and other mineral resources, can be completely soluble underground without returning operation, and greatly improves the production efficiency.

Description

technical field [0001] The invention relates to a self-dissolving material and a preparation method thereof. Background technique [0002] During mineral (such as oil and gas) mining operations, it is often necessary to put some materials with specific functions (such as bridge plugs, fracturing balls) downhole. These materials will hinder the operation of the next step after completing their mission. In the past, the flowback process was usually used to return them to the ground, which greatly increased operating costs and reduced production efficiency. Contents of the invention [0003] The purpose of the present invention is to provide a self-dissolving material and a preparation method thereof, and the prepared self-dissolving material can be automatically dissolved in an electrolyte solution. [0004] According to one aspect of the present invention, a kind of preparation method of self-dissolving material is provided, comprising the following steps: [0005] (1) Pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/00C09K8/66
CPCC09K8/665C09K8/845
Inventor 席君杰张伟刚黄传兵席天宇席天岳
Owner BEIJING ZHONGKE JINTENG TECH