CN101768432B - Corrosion-resistant propping agent - Google Patents
Corrosion-resistant propping agent Download PDFInfo
- Publication number
- CN101768432B CN101768432B CN 200810187650 CN200810187650A CN101768432B CN 101768432 B CN101768432 B CN 101768432B CN 200810187650 CN200810187650 CN 200810187650 CN 200810187650 A CN200810187650 A CN 200810187650A CN 101768432 B CN101768432 B CN 101768432B
- Authority
- CN
- China
- Prior art keywords
- resin
- corrosion
- agent
- propping agent
- mixed fillers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a corrosion-resistant propping agent for oil exploitation, which mainly comprises mixed filler particles, resin and a curing agent. The weight ratio of the mixed filler particles and the resin is 100: (0.1-9), and the curing agent accounts for 5-30wt% of the weight of the resin, wherein the mixed filler particles comprise inorganic powder and a carbon nano tube; the average particle diameter of the inorganic powder is within 10 to 40mum, and the inorganic powder accounts for 80-99wt% of the weight of the mixed filler particles; the diameter of the carbon nano tube is within 1 to 20nm, and the axial length is within 10 to 100mum. The corrosion-resistant propping agent has the advantages of strong environmental corrosion resisting capability and high compressive strength.
Description
Technical field
The invention belongs to oil, gas well propping agent in the oilfield exploitation field, relate to specifically the oil in the oilfield exploitation field, the preparation method of gas well propping agent.
Background technology
Because the crude oil viscosity is large, the rock stratum voidage is low, and the space poor connectivity brings very large difficulty to oil extraction operation.In order to improve crude yield and oil recovery rate, people generally adopt propping agent to improve the space, rock stratum and the space is connective.In actual mechanical process, in order to improve the rate of permeation of oil, gas, usually need propping agent to possess that anti-environmental attack ability is strong, intensity is high and low density characteristic.
A kind of composite proppant is disclosed in the US Patent No. 2002048676, formed by filler grain and binding agent, wherein the median size of filler grain is 0.5-60 μ m, wherein the volumn concentration of filler grain in composite proppant is 60-90%, the filler grain inorganic particulates such as mineral powders that density is large by intensity is high, grinding such as plant shells such as nut-shells that density is little with intensity is low mixes, carry out a certain proportion of mixing by the powder with two kinds of different qualities, finally obtain the propping agent of improved performance.But still there is following defective in the prior art:
(1) hardness such as inorganic particle such as quartz sand are large in the composite proppant of the prior art, supporting capacity is strong, in the rock stratum, can play skeleton function, but its shock resistance is poor and density is larger, and is easily broken and easily sedimentation occurs and can't arrive the rock seam and play the effect of supporting the rock seam when mutually collision occurs between particle in the of the fracturing fluid carrying process; Although and plant shell has good impact resistance and lower density, in fracturing liquid carries the process of propping agent, can play absorption, disperse the effect of the potential energy between propping agent and be difficult for sedimentation in fracturing liquid, but the ultimate compression strength of plant shell is not high, the environmental corrosion resisting ability is relatively poor, plant shell fragmentation because self generation is degraded after for a long time use in the actual application, thus finally cause the fragmentation of propping agent to reduce the water conservancy diversion rate of rock stratum.Therefore in the prior art, the voltage endurance capability of propping agent and anti-environmental attack ability are all undesirable.
(2) in addition, resin content accounts for more than the 10wt% of propping agent in the prior art, be that resin content is higher, and the increasing to have reduced and mainly play the inorganic particle of skeleton function such as the content of quartz sand in the propping agent of resin content, very easily broken under the high impact forces effect, and resin is easy degradation with aging in environment, causes the propping agent environmental resistance to reduce.
Summary of the invention
For this reason, technical problem to be solved by this invention is: composite proppant of the prior art has the defective of not high, the anti-environmental attack ability of intensity.
For solving the problems of the technologies described above, the invention provides a kind of corrosion-resistant propping agent, described corrosion-resistant propping agent mainly comprises the mixed fillers particle, resin and solidifying agent, the weight ratio of described mixed fillers particle and described resin is 100: (0.1-9), described solidifying agent accounts for the 5-30wt% of described weight resin, wherein, described mixed fillers particle comprises inorganic powder and carbon nanotube, the median size of described inorganic powder is 10-40 μ m and the 80-99wt% that accounts for described mixed fillers particle weight, and the diameter of described carbon nanotube is that 1-20nm and axial length are 10-100 μ m.
Described carbon nanotube is Single Walled Carbon Nanotube and/or multi-walled carbon nano-tubes.
The diameter of described carbon nanotube is that 5-10nm and axial length are 20-80 μ m.
Described inorganic powder accounts for the 93-98wt% of described mixed fillers particle, and the median size of described mixed fillers particle is 20-30 μ m.
Described inorganic powder is formed after crushed by quartz sand and/or ceramsite sand.
The weight ratio of described mixed fillers particle and described resin is 100: (2-6).
Described composite particles also comprises softening agent, and described softening agent accounts for the 1-30wt% of described weight resin, and described softening agent is one or more in adjacent benzene two type manthanoate, fatty group dibasic acid, the phosphoric acid ester.
Described softening agent accounts for the 10-20wt% of described weight resin.
Described solidifying agent accounts for the 10-20wt% of described weight resin.
Described resin is resol, and the described solidifying agent of its correspondence is one or more of Paraformaldehyde 96, vulkacit H; Or
Described resin is furane resin, and the described solidifying agent of its correspondence is one or more of Phenylsulfonic acid, toluenesulphonic acids, xylene monosulfonic acid; Or
Described resin is Resins, epoxy, and the described solidifying agent of its correspondence is one or more of fatty amine and affixture, tertiary amine and salt thereof, aromatic amine and modification body thereof, imidazoles; Or
Described resin is unsaturated polyester resin, and the described solidifying agent of its correspondence is one or more of acyl peroxide class, peroxyesters; Or
Described resin is Vinylite, and the described solidifying agent of its correspondence is one or more of acyl peroxide class, peroxyesters.
Compared with prior art the present invention has the following advantages:
(1) body material in the corrosion-resistant propping agent is the mixture that inorganic powder and carbon nanotube mix formation by a certain percentage among the present invention, because good corrosion resistance and low-density character that carbon nanotube itself has, thereby anti-environmental attack ability, the anti-pressure ability of whole propping agent have been improved greatly on the one hand, can play on the other hand the effect that reduces support density, thereby effectively prevent the situation that propping agent settles from fracturing liquid.
(2) in addition, because carbon nanotube self has higher toughness, carry the process that propping agent injects the rock seam at fracturing liquid, can partially absorb potential energy between propping agent, thus the broken situation that produces when reducing propping agent owing to collision.
(3) median size of mixed fillers particle proves by experiment for being controlled at 10-40 μ m among the present invention, and the composite particles among the present invention has good anti-pressure ability and shock proof ability.
(4) among the present invention, control resin content and adding can increase the softening agent of mechanical strength of resin, still have good bond effect and the purpose of intensity simultaneously thereby reached reduction composite particles cost.
Embodiment
Next in conjunction with the embodiments the corrosion-resistant propping agent among the present invention is described further.
Embodiment 1
95g quartz sand is pulverized, and forming median size is the quartz sand powder of 30 μ m, fully mixes with 5g Single Walled Carbon Nanotube carbon nanotube, thereby forms the mixed fillers particle.Wherein the diameter of Single Walled Carbon Nanotube is 10nm, and axial length is 80 μ m.
Coat described mixed fillers particle with 6g resol, add the 1.2g dibutyl phthalate in the coating process, add again the 1.2g hexamethylenetetramine, fully stir so that the resin of overlay film on described mixed fillers particle surface begins to solidify.
After described compound solidified, agent S1 was supported after cooling, fragmentation, screening.Comprise that median size is the 95g quartz sand powder of 30 μ m, 5g Single Walled Carbon Nanotube, and 6g resol, 1.2g dibutyl phthalate and 1.2g hexamethylenetetramine among the propping agent S1 for preparing by the method.
Hexamethylenetetramine is to make overlay film have the resin layer of some strength with formation in the resin solidification of quartz sand surface as the effect of solidifying agent.Dibutyl phthalate reduces its fragility and increases anti-breaking capacity as the performance that can improve resin molding that act as of softening agent.
Embodiment 2
The 93g ceramsite sand is pulverized, and forming median size is the ceramsite sand powder of 10 μ m, fully mixes with the 7g double-walled carbon nano-tube, thereby forms the mixed fillers particle.Wherein the diameter of double-walled carbon nano-tube is 20nm, and axial length is 100 μ m.
Coat described mixed fillers particle with the 9g furane resin, add 2.7g Phenylsulfonic acid, toluenesulphonic acids mixture in the coating process, fully stir so that the resin of overlay film on described mixed fillers particle surface begins to solidify.
After described compound solidified, agent S2 was supported after cooling, fragmentation, screening.Comprise that median size is the 93g ceramsite sand powder of 10 μ m, 7g double-walled carbon nano-tube, and 9g furane resin, 0.09g dibutyl phthalate and 2.7g Phenylsulfonic acid, toluenesulphonic acids mixture among the propping agent S2 for preparing by the method.
Embodiment 3
The mixture of 99g quartz sand and ceramsite sand is pulverized, and forming median size is the quartz sand of 40 μ m and the mixture powder of ceramsite sand, fully mixes with the 1g Single Walled Carbon Nanotube, thereby forms mixed fillers particle, the mixed fillers particle.Wherein the diameter of Single Walled Carbon Nanotube is 1nm, and axial length is 10 μ m.
Coat described mixed fillers particle with the 0.1g furane resin, add the 0.03g dimixo-octyl phthalate in the coating process, add again the 0.02g xylene monosulfonic acid, fully stir so that the resin of overlay film on described mixed fillers particle surface begins to solidify.
After described compound solidified, agent S3 was supported after cooling, fragmentation, screening.Comprise that median size is the 95g quartz sand of 40 μ m and the mixture powder of ceramsite sand, 5g Single Walled Carbon Nanotube, and 0.1g furane resin, 0.03g dimixo-octyl phthalate and 0.02g xylene monosulfonic acid among the propping agent S3 for preparing by the method.
Embodiment 4
90g quartz sand is pulverized, and forming median size is the quartz sand powder of 20 μ m, fully mixes with the 10g Single Walled Carbon Nanotube, thereby forms the mixed fillers particle.Wherein the diameter of Single Walled Carbon Nanotube is 7nm, and axial length is 50 μ m.
Coat described mixed fillers particle with 2g Resins, epoxy, add the 0.2g Polycizer W 260 in the coating process, add again 0.2g aliphatics amine solidifying agent, fully stir so that the resin of overlay film on described mixed fillers particle surface begins to solidify.
After described compound solidified, agent S4 was supported after cooling, fragmentation, screening.Comprise that median size is the 90g quartz sand powder of 20 μ m, 10g Single Walled Carbon Nanotube, and 2g Resins, epoxy, 0.2g Polycizer W 260 and 0.2g aliphatics amine solidifying agent among the propping agent S4 for preparing by the method.
Embodiment 5
80g quartz sand is pulverized, and forming median size is the quartz sand powder of 25 μ m, fully mixes with the 20g double-walled carbon nano-tube, thereby forms the mixed fillers particle.Wherein the diameter of double-walled carbon nano-tube is 5nm, and axial length is 20 μ m.
Coat described mixed fillers particle with the 5g unsaturated polyester resin, add the 0.75g diisooctyl sebacate in the coating process, add again 0.25g acyl peroxide class solidifying agent, fully stir so that the resin of overlay film on described mixed fillers particle surface begins to solidify.
After described compound solidified, agent S5 was supported after cooling, fragmentation, screening.Comprise that median size is the 80g quartz sand of 25 μ m, 20g double-walled carbon nanometer, and 5g unsaturated polyester resin, 0.75g diisooctyl sebacate and 0.25g acyl peroxide class solidifying agent among the propping agent S5 for preparing by the method.
Embodiment 6
98g quartz sand is pulverized, and forming median size is the quartz sand powder of 15 μ m, and the mixture with 2g Single Walled Carbon Nanotube and double-walled carbon nano-tube fully mixes again, thereby forms the mixed fillers particle.Wherein the diameter of Single Walled Carbon Nanotube and double-walled carbon nano-tube is 15nm, and axial length is 70 μ m.
Coat described mixed fillers particle with the 8g Vinylite, add the 2g triphenylphosphate in the coating process, add again 2g peroxyesters solidifying agent, fully stir so that the resin of overlay film on described mixed fillers particle surface begins to solidify.
After described compound solidified, agent S6 was supported after cooling, fragmentation, screening.Comprise that median size is the 98g quartz sand of 15 μ m, the mixture of 2g Single Walled Carbon Nanotube and double-walled carbon nano-tube, and 8g Vinylite, 2g triphenylphosphate and 2g peroxyesters solidifying agent among the propping agent S6 for preparing by the method.
Embodiment 7
The 96g ceramsite sand is pulverized, and forming median size is the ceramsite sand of 28 μ m, fully mixes with the 4g Single Walled Carbon Nanotube, thereby forms the mixed fillers particle.Wherein the diameter of Single Walled Carbon Nanotube is 8nm, and axial length is 40 μ m.
Coat described mixed fillers particle with 4g resol, add 0.72g Tritolyl Phosphate and triisooctyl phosphate mixture in the coating process, add again 0.64g six polyoxymethylene, fully stir so that the resin of overlay film on described mixed fillers particle surface begins to solidify.
After described compound solidified, agent S7 was supported after cooling, fragmentation, screening.Comprise that median size is the 96g ceramsite sand powder of 28 μ m, 4g Single Walled Carbon Nanotube, and 4g resol, 0.72g Tritolyl Phosphate and triisooctyl phosphate mixture and 0.64g six polyoxymethylene among the propping agent S7 for preparing by the method.
Embodiment 8
85g quartz sand is pulverized, and forming median size is the quartz sand powder of 30 μ m, fully mixes with the 15g double-walled carbon nano-tube, thereby forms the mixed fillers particle.Wherein the diameter of double-walled carbon nano-tube is 3nm, and axial length is 15 μ m.
Coat described mixed fillers particle with 6g resol, add the 1.2g dibutyl phthalate in the coating process, add again the 1.2g hexamethylenetetramine, fully stir so that the resin of overlay film on described mixed fillers particle surface begins to solidify.
After described compound solidified, agent S8 was supported after cooling, fragmentation, screening.Comprise that median size is the 85g quartz sand powder of 30 μ m, 15g double-walled carbon nano-tube, and 6g resol, 1.2g dibutyl phthalate and 1.2g hexamethylenetetramine among the propping agent S8 for preparing by the method.
Comparative Examples 1
95g quartz sand and 5g nut-shell are pulverized, thereby quartz sand powder and the nut-shell filler grain that forms carried out sufficient mix and blend formation mixed fillers particle, the median size of mixed fillers particle is 30 μ m.
Coat described mixed fillers particle with 6g resol, add the 1.2g dibutyl phthalate in the coating process, add again the 1.2g hexamethylenetetramine, fully stir so that the resin of overlay film on described mixed fillers particle surface begins to solidify.
After described compound solidified, agent C1 was supported after cooling, fragmentation, screening.Comprise that median size is 95g quartz sand and the 5g nut-shell of 0.5 μ m among the propping agent C1 for preparing by the method, and 6g resol, 1.2g dibutyl phthalate and 1.2g hexamethylenetetramine.
Need to prove, the process of resin-coated mixed fillers particle is well known to those skilled in the art among the present invention, therefore do not give unnecessary details.
Evaluation Example
Propping agent S1-S8 and propping agent C1 that embodiment 1-8 and Comparative Examples 1 are prepared carry out the test of percentage of damage, acid solubility and propping agent flow conductivity.Wherein,
Acid solubility refers at the acid solution of regulation and in the sour molten time, the quality that propping agent is dissolved by acid and the per-cent of propping agent original quality, the concrete operations condition is: each propping agent is soaked 1 hour in the 1mol/L phosphoric acid solution after, after washing drying, measure separately weight and ask the weight that dissolves, measure acid solubility by preceding method.
The percentage of damage of propping agent refers to that the tiny broken particle of particle generation under the locking pressure effect accounts for the percentage composition of the original gross weight of particle.Percentage of damage reflects the size of its anti-pressure ability.The locking pressure that is determined at of percentage of damage is to carry out under the 69MPa among the present invention.
Flow conductivity the condition of test be in API standard diversion chamber, employing waits mass measurement method, sanding concentration 5.0g/m
2, Experimental Flowing Object is the KCl solution of 2wt%, locking pressure is 20MPa.
The specification of propping agent is 20/40 order among the present invention in addition.Above-mentioned test result sees Table 1.
Can find out by the data in the table 1, by carbon nanotube and the proportioning of inorganic powder and the specification of carbon nanotube self in the control mixed fillers particle, and select the softening agent that is fit to, the propping agent of solidifying agent preparation to have good anti-breaking capacity and good acid resistance and flow conductivity.
Analyze the propping agent S1 of embodiment 1 preparation and the propping agent C1 of Comparative Examples 1 preparation, can find out because the filler grain among the propping agent C1 adopts the vegetable filler particle of anti-environmental attack ability, therefore under acid environment, the propping agent acid solubility obviously increases, mean that the anti-environmental attack ability of propping agent is relatively poor, and add a certain proportion of carbon nanotube in the stuff and other stuff of the propping agent of the present invention's preparation, so that the acid resistance ability of propping agent increases substantially.
Analyzing the percentage of damage of propping agent S1 to S8 can find out, in the situation that other preparation conditions are similar, length of carbon nanotube is longer, the anti-breaking capacity of propping agent is higher, flow conductivity better, analyzing its major cause is: when carbon nanotube has long length, its degree of flexibility is higher, can absorb more stress under locking pressure or impact effect, thereby improves resistance to compression, the anti-collision ability of propping agent.And along with the axial length of carbon nanotube is shorter, the acid resistance ability of propping agent is stronger, analyzes its major cause to be: the axial length of carbon nanotube is shorter, and it is more abundant with mixing of inorganic powder, resin more easily is immersed in the carbon nanotube, improves the ability of resin molding acid resistance.
Corrosion-resistant propping agent among the present invention can directly use as propping agent, and the matrix that also can be used as other propping agents uses.
Obviously, above-described embodiment only is for example clearly is described, and is not the restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all embodiments exhaustive.And the apparent variation of being extended out thus or change still belong among the protection domain of claim of the present invention.
Table 1
| The composite particles sample | Percentage of damage % | Acid solubility wt ‰ | Flow conductivity μ m 2·cm |
| S1 | 2.12 | 2.0 | 138.9 |
| S2 | 1.98 | 2.1 | 140.1 |
| S3 | 3.74 | 0.5 | 118.2 |
| S4 | 2.27 | 1.8 | 135.5 |
| S5 | 3.01 | 0.9 | 121.0 |
| S6 | 2.71 | 1.7 | 128.4 |
| S7 | 2.97 | 1.3 | 124.8 |
| S8 | 3.23 | 0.7 | 119.7 |
| C1 | 4.47 | 3.7 | 68.2 |
| C2 | 3.90 | 3.9 | 81.4 |
Claims (9)
1. corrosion-resistant propping agent, it is characterized in that: described corrosion-resistant propping agent mainly comprises mixed fillers particle, resin and curing agent, the weight ratio of described mixed fillers particle and described resin is 100:(0.1-9), described curing agent accounts for the 5-30wt% of described weight resin, wherein, described mixed fillers particle comprises inorganic powder and CNT, the average grain diameter of described inorganic powder is 10-40 μ m and the 80-99wt% that accounts for described mixed fillers particle weight, the diameter of described CNT is that 1-20nm and axial length are 10-100 μ m
Described resin is resol, and the described solidifying agent of its correspondence is one or more of Paraformaldehyde 96, vulkacit H; Or
Described resin is furane resin, and the described solidifying agent of its correspondence is one or more of Phenylsulfonic acid, toluenesulphonic acids, xylene monosulfonic acid; Or
Described resin is Resins, epoxy, and the described solidifying agent of its correspondence is one or more of fatty amine and affixture, tertiary amine and salt thereof, aromatic amine and modification body thereof, imidazoles; Or
Described resin is unsaturated polyester resin, and the described solidifying agent of its correspondence is one or more of acyl peroxide class, peroxyesters; Or
Described resin is Vinylite, and the described solidifying agent of its correspondence is one or more of acyl peroxide class, peroxyesters.
2. described corrosion-resistant propping agent according to claim 1, it is characterized in that: described carbon nanotube is Single Walled Carbon Nanotube and/or multi-walled carbon nano-tubes.
3. described corrosion-resistant propping agent according to claim 1, it is characterized in that: the diameter of described carbon nanotube is that 5-10nm and axial length are 20-80 μ m.
4. described corrosion-resistant propping agent according to claim 1, it is characterized in that: described inorganic powder accounts for the 93-98wt% of described mixed fillers particle, and the median size of described mixed fillers particle is 20-30 μ m.
5. described corrosion-resistant propping agent according to claim 1, it is characterized in that: described inorganic powder is formed after crushed by quartz sand and/or ceramsite sand.
6. described corrosion-resistant propping agent according to claim 1, it is characterized in that: the weight ratio of described mixed fillers particle and described resin is 100:(2-6).
7. described corrosion-resistant propping agent according to claim 1, it is characterized in that: described corrosion-resistant propping agent also comprises softening agent, described softening agent accounts for the 1-30wt% of described weight resin, and described softening agent is one or more in adjacent benzene two type manthanoate, fatty group dibasic acid, the phosphoric acid ester.
8. described corrosion-resistant propping agent according to claim 7, it is characterized in that: described softening agent accounts for the 10-20wt% of described weight resin.
9. described corrosion-resistant propping agent according to claim 1, it is characterized in that: described solidifying agent accounts for the 10-20wt% of described weight resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810187650 CN101768432B (en) | 2008-12-29 | 2008-12-29 | Corrosion-resistant propping agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810187650 CN101768432B (en) | 2008-12-29 | 2008-12-29 | Corrosion-resistant propping agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101768432A CN101768432A (en) | 2010-07-07 |
| CN101768432B true CN101768432B (en) | 2013-02-13 |
Family
ID=42501534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810187650 Active CN101768432B (en) | 2008-12-29 | 2008-12-29 | Corrosion-resistant propping agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101768432B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104962276A (en) * | 2015-06-26 | 2015-10-07 | 西安理工大学 | Modified carbon nano-tube touching resin pre-coated-sand propping agent and preparing method thereof |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102443387B (en) * | 2010-09-30 | 2016-08-03 | 北京仁创砂业科技有限公司 | A kind of hydrophobic proppant and preparation method thereof |
| CN103086643B (en) * | 2012-04-25 | 2014-12-03 | 北京仁创科技集团有限公司 | Self-compact and quickly-cured pavement patching material, preparation method thereof and application |
| CN103086649B (en) * | 2012-04-25 | 2014-12-03 | 北京仁创科技集团有限公司 | Method for rushing to repair damaged road surfaces rapidly |
| CN103175771B (en) * | 2012-10-31 | 2015-12-16 | 北京仁创科技集团有限公司 | A kind of acidproof, alkaline-resisting and salt tolerant method of testing of fracturing propping agents |
| US11008507B2 (en) * | 2017-02-09 | 2021-05-18 | Saudi Arabian Oil Company | Nanoparticle-enhanced resin coated frac sand composition |
| CN110982510B (en) * | 2019-11-22 | 2022-08-05 | 中国石油天然气股份有限公司 | Hydraulic fracturing propping agent and preparation method and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1274376A (en) * | 1998-07-22 | 2000-11-22 | 博登化学公司 | Composite proppant, composite filtration media and methods for making and using same |
-
2008
- 2008-12-29 CN CN 200810187650 patent/CN101768432B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1274376A (en) * | 1998-07-22 | 2000-11-22 | 博登化学公司 | Composite proppant, composite filtration media and methods for making and using same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104962276A (en) * | 2015-06-26 | 2015-10-07 | 西安理工大学 | Modified carbon nano-tube touching resin pre-coated-sand propping agent and preparing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101768432A (en) | 2010-07-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101768432B (en) | Corrosion-resistant propping agent | |
| CN101665686B (en) | Method for preparing surface-modified proppant | |
| CN101735793A (en) | Composite particles and method for preparing same | |
| CN101338183A (en) | Anti-salt high-density cement mortar | |
| JP2008538122A (en) | Graphite coating of particulate matter | |
| CN106189719A (en) | A kind of Graphene anticorrosive paint and preparation method thereof | |
| CN101817535B (en) | Method for preparing modified bentonite | |
| CN106543688A (en) | A kind of organic/inorganic nano combined casting material and preparation method thereof | |
| CN101666225A (en) | Surface-modified proppant | |
| EP4054989A1 (en) | Compositions comprising a mechanochemically carboxylated mineral filler and a cement and/or asphalt binder | |
| CN103160271A (en) | Preparation method for lumpish sand prevention proppant | |
| CN101768431B (en) | Wear-resistant propping agent | |
| CN105542739A (en) | Coated sand for sand prevention in oil well and preparation method of coated sand | |
| CN105273454B (en) | Nano inorganic zinc-rich composite anticorrosion coating and preparation method thereof | |
| CN103044010B (en) | Anti-permeability and anti-freezing-thawing composite wearproof lining material and preparation method | |
| KR20220123635A (en) | Mechanically carboxylated fly ash, process for its preparation and uses thereof | |
| CN101538460B (en) | Water-based resin sand consolidation agent | |
| CN103333581B (en) | A kind of Nano cerium oxide/epoxy composite paint and preparation method thereof | |
| CN105504683A (en) | Preparation method of nano-filler modified epoxy resin composite material and product thereof | |
| Gang et al. | A green shale inhibitor developed from lignin sulfonate and the mechanism study | |
| Du et al. | Advances in nanocomposite organic coatings for hydraulic fracturing proppants | |
| CN106189577A (en) | A kind of preparation method of high dispersive type water system carbon nanotube conducting slurry | |
| CN105038122A (en) | Preparation method of Fe2O3-HNTs (halloysite nanotubes) epoxy resin composite material | |
| CN104830306A (en) | Sand control agent used for steam huff-puff oil well at high temperature | |
| Sowunmi et al. | Polyelectrolyte–nanocomposite for enhanced oil recovery: influence of nanoparticle on rheology, oil recovery and formation damage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: INNER MONGOLIA RECHSAND INDUSTRY CO., LTD. Free format text: FORMER OWNER: BEIJING RENCHUANG SCI-TECH GROUP CORP., LTD. Effective date: 20140110 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100085 HAIDIAN, BEIJING TO: 028300 TONGLIAO, INNER MONGOLIA AUTONOMOUS REGION |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140110 Address after: 028300 the Inner Mongolia Autonomous Region Tongliao Naiman Banner Industrial Park Patentee after: Inner Mongolia Renchuang Sand Industry Co. Ltd. Address before: 100085, room 508, building B, Ka Wah building, No. nine, 3rd Street, Haidian District, Beijing Patentee before: Beijing Renchuang Sci-Tech Group Corp., Ltd. |