CN104057081B - Dissoluble metal material for underground construction - Google Patents
Dissoluble metal material for underground construction Download PDFInfo
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- CN104057081B CN104057081B CN201410330983.5A CN201410330983A CN104057081B CN 104057081 B CN104057081 B CN 104057081B CN 201410330983 A CN201410330983 A CN 201410330983A CN 104057081 B CN104057081 B CN 104057081B
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Abstract
A dissoluble metal material for underground construction comprises a net-shaped metal framework and a filling material. The net-shaped metal framework is of a spatial grid structure composed of metal wires made of nanometer magnesium wires or nanometer magnesium alloy wires or mixtures of nanometer magnesium and nanometer magnesium alloys. The filling material comprises nanometer zinc or nanometer iron or nanometer nickel. The spatial grid structure is filled with the filling material which is in the form of powder or short nanometer metal wires or a combination of the powder and the short nanometer metal wires. A partial assembly made of the metal material and used for underground construction of an oil-gas well can dissolve by itself after playing its roles.
Description
Technical field
The present invention relates to a kind of soluble Oil/gas Well underground construction material, particularly one kind are using the braiding of nano metal line
Mesh skeleton and its interstitital texture.
Background technology
At present, in petroleum works technical field, the members of Oil/gas Well underground construction not only can after playing its effect
Become burden and the carrying out constructed can be affected to some extent.The centralizer of such as fracturing string plays to pass in construction
Important positioning action, is possible to by fracturing sand landfill and causes tubing string cannot rise out after construction.Therefore it is a kind of permissible to be badly in need of invention
The metal material that construction tool after underground construction can voluntarily dissolve.
Content of the invention
The invention aims to solving the above problems, devise a kind of dissolvable metal material for underground construction
Material, this metal material can be used for making fracturing string centralizer, in multistage fracturing for open the metal ball of sliding sleeve, packer this
Body, perforating gun etc., application prospect is extensive.
Realize above-mentioned purpose the technical scheme is that, this is used for the dissolvable metal material of underground construction, including
Net metal skeleton, filler, net metal skeleton is by nanometer Mg or nanometer magnesium alloy or nanometer Mg and nanometer Mg
The space networks grating texture of the metal line materials composition that the mixture of alloy is made, filler includes nanometer Mg powder, nanometer stone
Black granule or other metal actives are less than the metal powder of magnesium, filler in the form of powdery or the short metal wire of nanometer or
Both forms combining are filled in space networks grating texture.
Further, should be in isolation air, below 400 degree of melt point above, under conditions of more than 5 MPas during making
Die casting forms.Further, the diameter of nanometer magnesium alloy wire is less than 5 microns.
Further, filler can also be nano zinc powder, nanometer iron powder, nano-nickel powder or nanometer manganese powder；Or
Filler can also be the metal powder being less than magnesium including nanometer Mg powder and other metal actives.
Further, net metal skeleton relies on the ion in drilling well well liquid can make its slow mechanism dissolved after construction, or
Person's injection high-concentration acidic wastewater electrolyte accelerates its dissolving, high-concentration acidic wastewater electrolyte chloride ion content 5g/L-20g/L, accelerates bone
The speed of frame base metal corrosion, skeleton gradually dissolves, and the chemical equation in course of dissolution is：
Mg+2H2O=Mg (OH)2+H2,
Mg+2Cl-=MgCl2+ 2e,
Mg(OH)2+2Cl-=MgCl2+2OH-.
Further, the porosity of net metal skeleton controls in 5%-40%, and permeability controls more than 10 millidarcies.
Further, net metal skeleton is in integrally cylinder, and net metal skeleton permeability is inside by cylindrical outer
Portion is gradually increased, so that epidermolytic speed is slow, internal dissolution velocity is fast, to ensure that during construction, metal material will not dissolve, and
After construction terminates, the dissolving of this material is more and more faster.
Further, high-strength carbon fiber can be mixed in net metal skeleton to increase the intensity of material body.
Further, using before must completely cut off aeroseal storage.
Magnesium and magnesium alloy have that the ability that density is low, intensity is high, bear dynamic load static load is strong, elastic modelling quantity and Poisson's ratio and its
His construction material is close, and the poor chemical stability of magnesium and magnesium alloy, is easily corroded simultaneously, especially has very under chloride environment
Strong Corrosion behavior, therefore voluntarily can dissolve in down-hole with this net metal carcasing.
Brief description
Fig. 1 is the structural representation of net metal skeleton of the present invention；
Fig. 2 is the partial enlarged drawing of net metal skeleton of the present invention；
In figure, 1, net metal skeleton；2nd, metal wire；3rd, filler.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is specifically described, as depicted in figs. 1 and 2, one kind is compiled using nano metal line
The mesh skeleton knitted, including net metal skeleton 1, the body of described net metal skeleton is to be woven with nano metal line 2
Space net structure, be filled with filler 3 in the space of described space net structure；Described nano metal line 2 is
Nanometer Mg metal wire or nanometer Mg alloying metal line；Described filler 3 with powder or short wire-like thing or the two mutually tie
The mixture closing；Described filler 3 is Nano-Zinc, Nanoscale Iron or nano nickel or nanostructured manganese, using the corrosive of its own
Property, can voluntarily eliminate when not needed.
In the present embodiment, construction in Oil/gas Well will be entered under the underground construction instrument containing this metal parts, after construction
Rely on the ion in drilling well well liquid that metal can be made slowly to dissolve, or injection high-concentration acidic wastewater electrolyte accelerates its dissolving, such as beats
Enter the acidic electrolysis bath of the chloride ion content containing 5g/L-20g/L, accelerate the speed of frame body metal erosion, skeleton is gradually
Dissolving.
Technique scheme only embodies the optimal technical scheme of technical solution of the present invention, those skilled in the art
Some that some of which part may be made change and all embody the principle of the present invention, belong to protection scope of the present invention it
Interior.
Claims (6)
1. a kind of dissolvable metal material for underground construction, including net metal skeleton, filler, described netted gold
Belonging to skeleton is by the space networks grating texture of nanometer Mg metal wire or the braiding of nanometer Mg alloying metal line, described filler
It is less than the metal powder of magnesium including nanometer Mg powder and other metal actives, described filler is with powdery or the short metal wire of nanometer
Form or both forms combining are filled in space networks grating texture；Should be in isolation air, at 400 degree during making
Die casting below melt point above, under conditions of more than 5 MPas forms.
2. a kind of dissolvable metal material for underground construction according to claim 1 is it is characterised in that described net
Shape metallic framework relies on the ion in drilling well well liquid can make its slow mechanism dissolved after construction, or injection high-concentration acidic wastewater electrolysis
Liquid accelerates its dissolving, and described high-concentration acidic wastewater electrolyte chloride ion content is 5g/L-20g/L, accelerates frame body metal erosion
Speed, skeleton gradually dissolves, and the chemical equation in course of dissolution is：
Mg+2H2O=Mg (OH)2+H2,
Mg+2Cl-=MgCl2+ 2e,
Mg(OH)2+2Cl-=MgCl2+2OH-.
3. a kind of dissolvable metal material for underground construction according to claim 1 is it is characterised in that described net
The porosity of shape metallic framework controls in 5%-40%, and permeability controls more than 10 millidarcies.
4. a kind of dissolvable metal material for underground construction according to claim 1 is it is characterised in that described net
Shape metallic framework is in integrally cylinder, and described net metal skeleton permeability is internally gradually increased by cylindrical outer, so that
Epidermolytic speed is slow, and internal dissolution velocity is fast, after ensureing that during construction, metal material will not dissolve, and construction terminates, this material
The dissolving of material is more and more faster.
5. a kind of dissolvable metal material for underground construction according to claim 1 is it is characterised in that described net
It is mixed into high-strength carbon fiber to increase the intensity of material body in shape metallic framework.
6. a kind of dissolvable metal material for underground construction according to claim 1 is it is characterised in that use front
Aeroseal storage must be completely cut off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410330983.5A CN104057081B (en) | 2014-07-09 | 2014-07-09 | Dissoluble metal material for underground construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410330983.5A CN104057081B (en) | 2014-07-09 | 2014-07-09 | Dissoluble metal material for underground construction |
Publications (2)
| Publication Number | Publication Date |
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| CN104057081A CN104057081A (en) | 2014-09-24 |
| CN104057081B true CN104057081B (en) | 2017-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410330983.5A Active CN104057081B (en) | 2014-07-09 | 2014-07-09 | Dissoluble metal material for underground construction |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298429B (en) * | 2015-11-18 | 2018-09-04 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of lower brill blanking plug |
| CN106121580B (en) * | 2016-06-24 | 2019-02-26 | 成都维泰油气能源技术有限公司 | A kind of high temperature and pressure soluble metal sealing drum |
| CN110671074B (en) * | 2018-07-02 | 2021-11-26 | 中国石油化工股份有限公司 | Well cementation rubber plug rubber part and reinforcing method thereof |
| CN109441364A (en) * | 2018-10-30 | 2019-03-08 | 中国科学技术大学 | A kind of down-hole casing of soluble aluminum base alloy dissolution pore-forming |
| CN112012708B (en) * | 2019-05-29 | 2022-08-30 | 中国石油天然气股份有限公司 | Sand jam prevention soluble bridge plug fracturing process pipe column and construction method thereof |
| CN112324365A (en) * | 2020-12-02 | 2021-02-05 | 中国石油集团渤海钻探工程有限公司 | Degradable hollow edge centralizer |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8528633B2 (en) * | 2009-12-08 | 2013-09-10 | Baker Hughes Incorporated | Dissolvable tool and method |
| US9010424B2 (en) * | 2011-03-29 | 2015-04-21 | Baker Hughes Incorporated | High permeability frac proppant |
| KR101806547B1 (en) * | 2011-04-06 | 2018-01-10 | 주식회사 제낙스 | Battery having electrode structure with metallic fibers and method of fabricating the electrode structure |
| US8631876B2 (en) * | 2011-04-28 | 2014-01-21 | Baker Hughes Incorporated | Method of making and using a functionally gradient composite tool |
| US9080098B2 (en) * | 2011-04-28 | 2015-07-14 | Baker Hughes Incorporated | Functionally gradient composite article |
| CN103008679A (en) * | 2012-11-27 | 2013-04-03 | 天津大学 | Method for preparing nano-silver particle and nano-silver wire mixed conductive ink |
| CN103343271B (en) * | 2013-07-08 | 2015-07-01 | 中南大学 | Light and pressure-proof fast-decomposed cast magnesium alloy |
| CN103602866A (en) * | 2013-11-01 | 2014-02-26 | 尚进 | Soluble metal alloy material |
| CN103898384B (en) * | 2014-04-23 | 2016-04-20 | 大连海事大学 | Soluble magnesium base alloy material, its preparation method and application |
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| CN104057081A (en) | 2014-09-24 |
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