CN104057081A - Dissoluble metal material for underground construction - Google Patents
Dissoluble metal material for underground construction Download PDFInfo
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- CN104057081A CN104057081A CN201410330983.5A CN201410330983A CN104057081A CN 104057081 A CN104057081 A CN 104057081A CN 201410330983 A CN201410330983 A CN 201410330983A CN 104057081 A CN104057081 A CN 104057081A
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- underground construction
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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 a kind of mesh skeleton and interstitital texture thereof of utilizing the braiding of nano metal line to form.
Background technology
At present, in petroleum works technical field, the part assembly of Oil/gas Well underground construction not only can become burden but also can in some degree, affect the carrying out of construction after its effect of performance.For example the centralizer of fracturing string plays vital positioning action when construction, after construction, likely by fracturing sand landfill, is caused tubing string to trip out.Therefore be badly in need of a kind of metal material that can dissolve voluntarily at underground construction construction tool later of invention.
Summary of the invention
The object of the invention is in order to address the above problem, designed a kind of solubilized metal material of using for underground construction, this metal material can be used for making in fracturing string centralizer, multistage fracturing metal ball for opening sliding sleeve, packer body, perforating gun etc., and application prospect is extensive.
Realizing above-mentioned purpose technical scheme of the present invention is; the solubilized metal material that should use for underground construction; comprise net metal skeleton, packing material; the space networks trellis structure that the metal line materials that net metal skeleton is made by the mixture of nanometer Mg or nanometer Mg alloy or nanometer Mg and nanometer Mg alloy forms; filler comprises that nanometer Mg powder, nano-graphite particle or other metal actives are less than the metal powder of magnesium, and filler is filled in space networks trellis structure with form or both forms combining of powdery or the short metal wire of nanometer.
Further, should be at isolated air, below the above fusing point of 400 degree during making, die casting forms under 5 conditions more than MPa.Further, the diameter of nanometer Mg alloy wire is less than 5 microns.
Further, packing material can also be nano zinc powder, nanometer iron powder, nano-nickel powder or the manganese powder of receiving.
Further, net metal skeleton relies on the ion in drilling well well liquid can make it slowly dissolve in construction afterwards, or inject high-concentration acidic wastewater electrolyte and accelerate its dissolving, high-concentration acidic wastewater electrolyte chloride ion content 5g/L-20g/L, accelerate the speed of skeleton base metal corrosion, skeleton dissolves gradually, and the chemical equation in course of dissolution is:
Mg+2H
2O＝Mg(OH)
2+H
2，
Mg+2C1
-＝MgCl
2+2e，
Mg(OH)
2+2Cl
-＝MgCl
2+2OH
-。
Further, the porosity of net metal skeleton is controlled at 5%-40%, more than permeability is controlled at 10 millidarcies.
Further, net metal skeleton integral body is cylinder, and net metal skeleton permeability is increased to inside gradually by cylinder outside, so that epidermis dissolution velocity is slow, inner dissolution velocity is fast, and metal material can not dissolve when guaranteeing to construct, and construction finish after, the dissolving of this material is more and more faster.
Further, in net metal skeleton, can sneak into high-strength carbon fiber to increase the intensity of material body.
Further, use front must storage by isolated aeroseal.
Magnesium and magnesium alloy have that density is low, intensity is high, bear dynamic load static load ability is strong, elastic modelling quantity is close with other construction materials with Poisson's ratio, the poor chemical stability of while magnesium and magnesium alloy, easily be corroded, especially under chloride environment, there is very strong corrosion performance, therefore can dissolving voluntarily in down-hole of forming with this net metal carcasing.
Accompanying drawing explanation
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; 2, metal wire; 3, filler.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is specifically described, as depicted in figs. 1 and 2, a kind of mesh skeleton that utilizes the braiding of nano metal line to form, comprise net metal skeleton 1, the body of described net metal skeleton is the space network structure forming with 2 braidings of nano metal line, and described space is filled with filler 3 in cancellated space; Described nano metal line 2 is nanometer Mg metal wire or nanometer Mg alloying metal line; Described filler 3 is with powder or short wire-like thing or mixture that the two combines; Described filler 3 is Nano-Zinc, Nanoscale Iron or nano nickel or the manganese of receiving, and utilizes the etching characteristic of himself, can when not needing, eliminate voluntarily.
In the present embodiment, the underground construction instrument that contains this metal parts is lowered in Oil/gas Well and is constructed, after construction, rely on the ion in drilling well well liquid can make metal slowly dissolve, or inject high-concentration acidic wastewater electrolyte and accelerate its dissolving, the acidic electrolysis bath that contains the chloride ion content of 5g/L-20g/L as squeezed into, the speed of accelerating the corrosion of skeleton base metal, skeleton dissolves gradually.
Technique scheme has only embodied the optimal technical scheme of technical solution of the present invention, and those skilled in the art have all embodied principle of the present invention to some changes that wherein some part may be made, within belonging to protection scope of the present invention.
Claims (9)
1. a solubilized metal material of using for underground construction, comprise net metal skeleton, packing material, the space networks trellis structure that described net metal skeleton is comprised of nanometer Mg metal wire, nanometer Mg alloy wire, described filler comprises that nanometer Mg powder and other metal actives are less than the metal powder of magnesium, and described filler is filled in space networks trellis structure with form or both forms combining of powdery or the short metal wire of nanometer.
2. a kind of solubilized metal material of using for underground construction according to claim 1, is characterized in that, should be at isolated air, below the above fusing point of 400 degree during making, die casting forms under 5 conditions more than MPa.
3. a kind of solubilized metal material of using for underground construction according to claim 1, is characterized in that, the diameter of described nanometer Mg alloy wire is less than 5 microns.
4. a kind of solubilized metal material of using for underground construction according to claim 1, is characterized in that, described packing material is the mixture of nano zinc powder, nanometer iron powder, nano-nickel powder.
5. a kind of solubilized metal material of using for underground construction according to claim 1, it is characterized in that, described net metal skeleton relies on the ion in drilling well well liquid can make it slowly dissolve in construction afterwards, or inject high-concentration acidic wastewater electrolyte and accelerate its dissolving, described high-concentration acidic wastewater electrolyte chloride ion content is 5g/L-20g/L, the speed of accelerating the corrosion of skeleton base metal, skeleton dissolves gradually, and the chemical equation in course of dissolution is:
Mg+2H
2O＝Mg(OH)
2+H
2，
Mg+2Cl
-MgCl
2+2e，
Mg(OH)
2+2Cl
-＝MgCl
2+2OH
-。
6. a kind of solubilized metal material of using for underground construction according to claim 1, is characterized in that, the porosity of described net metal skeleton is controlled at 5%-40%, more than permeability is controlled at 10 millidarcies.
7. a kind of solubilized metal material of using for underground construction according to claim 3, it is characterized in that, described net metal skeleton integral body is cylinder, described net metal skeleton permeability is increased to inside gradually by cylinder outside, so that epidermis dissolution velocity is slow, inner dissolution velocity is fast, and metal material can not dissolve when guaranteeing to construct, and construction finish after, the dissolving of this material is more and more faster.
8. a kind of solubilized metal material of using for underground construction according to claim 1, is characterized in that, can sneak into high-strength carbon fiber to increase the intensity of material body in described net metal skeleton.
9. a kind of solubilized metal material of using for underground construction according to claim 1, is characterized in that, before using, must store by isolated aeroseal.
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 |
|---|---|
| CN104057081A true CN104057081A (en) | 2014-09-24 |
| CN104057081B CN104057081B (en) | 2017-02-15 |
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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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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298429A (en) * | 2015-11-18 | 2016-02-03 | 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 | Drilling packer |
| CN106121580A (en) * | 2016-06-24 | 2016-11-16 | 成都维泰油气能源技术有限公司 | A kind of High Temperature High Pressure soluble metal sealing drum |
| 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 |
| CN110671074A (en) * | 2018-07-02 | 2020-01-10 | 中国石油化工股份有限公司 | Well cementation rubber plug rubber part and reinforcing method thereof |
| CN112012708A (en) * | 2019-05-29 | 2020-12-01 | 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 |
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| US20110132620A1 (en) * | 2009-12-08 | 2011-06-09 | Baker Hughes Incorporated | Dissolvable Tool and Method |
| CN103459770A (en) * | 2011-03-29 | 2013-12-18 | 贝克休斯公司 | High permeability frac proppant |
| KR20120114117A (en) * | 2011-04-06 | 2012-10-16 | 주식회사 샤인 | Battery having electrode structure with metallic fibers and method of fabricating the electrode structure |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298429A (en) * | 2015-11-18 | 2016-02-03 | 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 | Drilling packer |
| 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 |
| CN106121580A (en) * | 2016-06-24 | 2016-11-16 | 成都维泰油气能源技术有限公司 | A kind of High Temperature High Pressure soluble metal sealing drum |
| 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 |
| CN110671074A (en) * | 2018-07-02 | 2020-01-10 | 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 |
| CN112012708A (en) * | 2019-05-29 | 2020-12-01 | 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104057081B (en) | 2017-02-15 |
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