CN108165250B - Nano foam acid and preparation method and use method thereof - Google Patents
Nano foam acid and preparation method and use method thereof Download PDFInfo
- Publication number
- CN108165250B CN108165250B CN201711385196.0A CN201711385196A CN108165250B CN 108165250 B CN108165250 B CN 108165250B CN 201711385196 A CN201711385196 A CN 201711385196A CN 108165250 B CN108165250 B CN 108165250B
- Authority
- CN
- China
- Prior art keywords
- acid
- nano
- solution
- silicon dioxide
- foam
- 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
- 239000002253 acid Substances 0.000 title claims abstract description 68
- 239000008208 nanofoam Substances 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title abstract description 10
- 238000002360 preparation method Methods 0.000 title abstract description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 46
- KWIUHFFTVRNATP-UHFFFAOYSA-N Betaine Natural products C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 claims abstract description 33
- KWIUHFFTVRNATP-UHFFFAOYSA-O N,N,N-trimethylglycinium Chemical compound C[N+](C)(C)CC(O)=O KWIUHFFTVRNATP-UHFFFAOYSA-O 0.000 claims abstract description 33
- 229960003237 betaine Drugs 0.000 claims abstract description 33
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 26
- MTNDZQHUAFNZQY-UHFFFAOYSA-N imidazoline Chemical compound C1CN=CN1 MTNDZQHUAFNZQY-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000005543 nano-size silicon particle Substances 0.000 claims abstract description 20
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 230000007797 corrosion Effects 0.000 claims abstract description 10
- 238000005260 corrosion Methods 0.000 claims abstract description 10
- 239000003112 inhibitor Substances 0.000 claims abstract description 9
- -1 iron ion Chemical class 0.000 claims abstract description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052742 iron Inorganic materials 0.000 claims abstract description 8
- 239000003381 stabilizer Substances 0.000 claims abstract description 8
- 150000001875 compounds Chemical class 0.000 claims description 10
- NCBISIFFSNXYQJ-UHFFFAOYSA-N 1-dodecyl-4,5-dihydroimidazole Chemical compound CCCCCCCCCCCCN1CCN=C1 NCBISIFFSNXYQJ-UHFFFAOYSA-N 0.000 claims description 9
- 239000001509 sodium citrate Substances 0.000 claims description 9
- HRXKRNGNAMMEHJ-UHFFFAOYSA-K trisodium citrate Chemical group [Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O HRXKRNGNAMMEHJ-UHFFFAOYSA-K 0.000 claims description 9
- 229940038773 trisodium citrate Drugs 0.000 claims description 9
- UZXNXNOSDDUSFF-UHFFFAOYSA-N 1-anilinobutan-2-one Chemical compound CCC(=O)CNC1=CC=CC=C1 UZXNXNOSDDUSFF-UHFFFAOYSA-N 0.000 claims description 6
- TVDSBUOJIPERQY-UHFFFAOYSA-N prop-2-yn-1-ol Chemical compound OCC#C TVDSBUOJIPERQY-UHFFFAOYSA-N 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 5
- 230000004048 modification Effects 0.000 claims description 4
- 238000012986 modification Methods 0.000 claims description 4
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 4
- 239000002101 nanobubble Substances 0.000 claims 1
- 230000020477 pH reduction Effects 0.000 abstract description 21
- 239000003921 oil Substances 0.000 abstract description 11
- 239000011435 rock Substances 0.000 abstract description 10
- 239000007789 gas Substances 0.000 abstract description 9
- 230000035515 penetration Effects 0.000 abstract description 7
- 238000003756 stirring Methods 0.000 abstract description 5
- 238000001914 filtration Methods 0.000 abstract description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 3
- 230000036632 reaction speed Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000005187 foaming Methods 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 239000006260 foam Substances 0.000 description 20
- 230000002829 reductive effect Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 239000000377 silicon dioxide Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 238000011161 development Methods 0.000 description 5
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000002086 nanomaterial Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- UEXLVMVGJMNPFA-UHFFFAOYSA-N N(C1=CC=CC=C1)C(C(CC)=O)C1=CC=CC=C1 Chemical compound N(C1=CC=CC=C1)C(C(CC)=O)C1=CC=CC=C1 UEXLVMVGJMNPFA-UHFFFAOYSA-N 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 230000000979 retarding effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- MWWATHDPGQKSAR-UHFFFAOYSA-N propyne Chemical compound CC#C MWWATHDPGQKSAR-UHFFFAOYSA-N 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 230000009044 synergistic interaction Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/62—Compositions for forming crevices or fractures
- C09K8/72—Eroding chemicals, e.g. acids
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/84—Compositions based on water or polar solvents
- C09K8/86—Compositions based on water or polar solvents containing organic compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/92—Compositions for stimulating production by acting on the underground formation characterised by their form or by the form of their components, e.g. encapsulated material
- C09K8/94—Foams
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/10—Nanoparticle-containing well treatment fluids
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Silicon Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention discloses a nano foamed acid, and belongs to the technical field of slow acidification of oil and gas wells. The composite material comprises the following components in percentage by mass: 0.1-1.0% of long-chain imidazoline betaine; 0.1-2.0% of hydrophilic nano silicon dioxide; 0.5-2.0% of corrosion inhibitor; 0.1-1.0% of iron ion stabilizer; 30-50% of concentrated hydrochloric acid; the balance of water, the nano foam acid can effectively reduce the reaction speed of acid rock, increase the acidification penetration distance, realize uniform acid distribution to achieve the aim of deep acidification, effectively reduce the filtration loss of acid liquor and avoid damaging an oil layer; the preparation method comprises the steps of adding water and concentrated hydrochloric acid into a container, then adding long-chain imidazoline betaine, hydrophilic nano silicon dioxide, a corrosion inhibitor and an iron ion stabilizer, and uniformly stirring to prepare the nano foamed acid, wherein the preparation method is simple, and the used raw materials are easily obtained; the application method comprises introducing nitrogen into the foamed acid, stirring, and foaming for construction, and has simple operation and convenient use.
Description
Technical Field
The invention belongs to the technical field of slow acidification of oil and gas wells, and particularly relates to a nano foamed acid and a preparation method and a use method thereof.
Background
The acid fracturing modification technology is one of leading technologies for increasing and stabilizing yield of a carbonate oil and gas reservoir development well, and becomes an essential important means for finding oil and gas or detecting reserves of an exploration well.
The method has the advantages that deep acidification is realized and stratum damage (polymer, solid-phase insoluble substances and acid sludge) is further reduced by optimizing the performance of an acid liquor system and increasing the acidification penetration distance, and the improvement of the acidification effect is the key research direction of the current acidification fracturing. The excellent acid system should first have control of H in the liquid phase+The capability of diffusing to the rock surface to reduce the reaction rate of acid rock, realize uniform acid distribution and slow acidification, thereby increasing the acidification penetration distance and achieving the purpose of deep acidification.
The foam acid is a foam system taking acid as a continuous phase and bubbles as a dispersed phase, the contact area of acid rocks can be reduced by means of foam, the diffusion rate of hydrogen ions is reduced, meanwhile, the foam has selectivity on permeability, uniform acid distribution can be realized, and the acidification effect is favorably improved.
However, at present, the foam acid mainly has the defects that the foam is unstable in the actual stratum environment, the half-life period of the foam is too short under the influence of high temperature, high pressure and oil, gas and water, so that the retarding performance of the foam acid is seriously reduced, the filtration loss is increased, and the final construction effect is influenced.
The nanometer material has many excellent performances such as high surface activity, reduced friction resistance, high specific surface area and the like due to the great reduction of the grain size, and gradually draws the attention of oil field developers, and the development of petroleum and natural gas in complex strata is carried out by combining the nanometer material with the oil field chemical application technology, so that the development of the oil field chemical application technology is certainly promoted.
The nano material is introduced into the foam acid to form a nano material foam acid liquid system, the nano particles and the surfactant molecules are adsorbed to generate a synergistic interaction effect, the stability of the foam is improved, and the nano material can tolerate higher temperature of an oil-gas field, so that the depth of oil-gas drilling development is increased.
Acid fluid loss is a main factor influencing the acidification effect, and the key to controlling the acid fluid loss is acidification success. Acid liquor is filtered mainly by entering into a high permeable layer and a stratum crack, so that the acid liquor is leaked and consumed quickly, and insufficient active acid enters into a low permeable stratum, the effective action distance of the acid liquor is greatly reduced, and the aim of deep penetration acid fracturing cannot be achieved.
Disclosure of Invention
The invention aims to provide a nano foam acid, a preparation method and a using method thereof, the nano foam acid can effectively reduce the reaction speed of acid rock, increase the acidification penetration distance, realize uniform acid distribution to achieve the aim of deep acidification, and can effectively reduce the filtration loss of acid liquor without causing damage to an oil layer. The preparation method is simple and the use is simple.
The invention is realized by the following technical scheme:
the invention discloses a nano foamed acid which comprises the following components in percentage by mass:
0.1-1.0% of long-chain imidazoline betaine;
0.1-2.0% of hydrophilic nano silicon dioxide;
0.5-2.0% of corrosion inhibitor;
0.1-1.0% of iron ion stabilizer;
30-50% of concentrated hydrochloric acid;
the balance of water.
Preferably, the particle size range of the nano foam acid is 20-50 nm.
Preferably, the long-chain imidazoline betaine is one or more of the compounds represented by formula (1):
wherein m is 8-18.
Preferably, when m is 8-18 mixed carbon chains in the compound of the formula (1), the long-chain imidazoline betaine is coco imidazoline betaine; when m is 12 in the compound of formula (1), the long-chain imidazoline betaine is lauryl imidazoline betaine.
Preferably, the hydrophilic nano-silica is amino-modified nano-silica with a particle size of 20-50 nm, and the amino-modified nano-silica is a compound shown in formula (2):
wherein x represents the degree of modification, and is 0.1 to 5% by mass.
Preferably, the corrosion inhibitor is one or more of a propiolic alcohol solution, an anilinobenzone solution and an anilinobenzone solution.
More preferably, the mass concentration of the propargyl alcohol solution is 20%; the mass concentration of the phenylaminophenbutanone solution is 20 percent; the mass concentration of the phenylaminobutanone solution is 20 percent.
Preferably, the iron ion stabilizer is trisodium citrate.
Preferably, the method comprises the steps of adding water and concentrated hydrochloric acid into a container, then adding long-chain imidazoline betaine, hydrophilic nano silicon dioxide, a corrosion inhibitor and an iron ion stabilizer, and uniformly stirring to obtain the nano foamed acid.
Preferably, the nano foamed acid is applied by introducing nitrogen gas, stirring and foaming.
Compared with the prior art, the invention has the following beneficial technical effects:
the nano foamed acid disclosed by the invention has a good retarding effect, and effectively reduces the reaction speed of acid rock, so that the acidification penetration distance is increased, uniform acid distribution is realized, and the purpose of deep acidification is achieved. The nano foam acid adopts amphoteric long-chain imidazoline betaine as a foaming agent, hydrophilic nano silicon dioxide as a foam reinforcing agent, the nano silicon dioxide and the long-chain imidazoline betaine are adsorbed to generate a synergistic effect, the stability of foam is improved, and the nano foam acid can tolerate higher temperature of an oil-gas field, so that the depth of oil-gas drilling development is increased, and the nano silicon dioxide can form a compact filter cake in acid liquor, so that the filtration loss of the acid liquor is effectively reduced, and the damage to an oil layer is avoided.
The invention also discloses a preparation method of the nano foamed acid, which is simple and has easily obtained raw materials.
The invention also discloses a using method of the nano foamed acid, and the method is simple and convenient to operate and convenient to use.
Detailed Description
The present invention will now be described in further detail with reference to specific examples, which are intended to be illustrative, but not limiting, of the invention.
The invention discloses a nano foamed acid which comprises the following components in percentage by mass:
0.1-1.0% of long-chain imidazoline betaine;
0.1-2.0% of hydrophilic nano silicon dioxide;
0.5-2.0% of corrosion inhibitor;
0.1-1.0% of iron ion stabilizer;
30-50% of concentrated hydrochloric acid;
the balance of water.
Preferably, the particle size range of the nano foam acid is 20-50 nm.
Preferably, the long-chain imidazoline betaine is one or more of the compounds of formula (1).
Wherein m is 8-18.
Preferably, when m is 8-18 mixed carbon chains in the compound of the formula (1), the long-chain imidazoline betaine is coco imidazoline betaine; when m is 12 in the compound of formula (1), the long-chain imidazoline betaine is lauryl imidazoline betaine.
Preferably, the hydrophilic nano-silica is amino-modified nano-silica with a particle size of 20-50 nm, and the amino-modified nano-silica is a compound shown in formula (2):
wherein x represents the degree of modification, and is 0.1 to 5% by mass.
Preferably, the corrosion inhibitor is one or more of a propyne solution with the mass concentration of 20%, an anilinobenzone solution with the mass concentration of 20% and an anilinobenzone solution with the mass concentration of 20%.
The chemical formula of the propiolic alcohol solution is as follows:
the chemical formula of the phenylaminophenbutanone solution is as follows:
the chemical formula of the phenylaminobutanone solution is as follows:
example 1
479 g of water and 500 g of concentrated hydrochloric acid are added into a 1000mL beaker, and then 7 g of lauryl imidazoline betaine, 5 g of hydrophilic nano silicon dioxide, 1 g of a propiolic solution (20% wt), 5 g of an anilinobenzone solution (20% wt) and 3 g of trisodium citrate are added and stirred uniformly to obtain nano foam acid.
Example 2
474 g of water and 500 g of concentrated hydrochloric acid are added into a 1000mL beaker, and then 7 g of coco imidazoline betaine, 10 g of hydrophilic nano silicon dioxide, 1 g of propiolic solution (20% wt), 5 g of phenylaminobutanone solution (20% wt) and 3 g of trisodium citrate are added and stirred uniformly to obtain the nano foam acid.
Example 3
471 g of water and 500 g of concentrated hydrochloric acid are added into a 1000mL beaker, and then 5 g of lauryl imidazoline betaine, 5 g of cocoimidazoline betaine, 10 g of hydrophilic nano silicon dioxide, 1 g of a propiolic solution (20% wt), 5 g of an anilinobenzone solution (20% wt) and 3 g of trisodium citrate are added and stirred uniformly to obtain the nano foam acid.
Example 4
469 g of water and 500 g of concentrated hydrochloric acid are added into a 1000mL beaker, and then 5 g of lauryl imidazoline betaine, 5 g of coco imidazoline betaine, 15 g of hydrophilic nano silicon dioxide, 1 g of a propiolic solution (20% wt), 2.5 g of a phenylaminobutanone solution (20% wt) and 3 g of trisodium citrate are added and stirred uniformly to obtain the nano foamed acid.
Example 5
461 g of water and 500 g of concentrated hydrochloric acid are added into a 1000mL beaker, and then 5 g of lauryl imidazoline betaine, 5 g of coco imidazoline betaine, 20 g of hydrophilic nano silicon dioxide, 1 g of a propiolic solution (20% wt), 5 g of a phenylaminobutanone solution (20% wt) and 3 g of trisodium citrate are added and stirred uniformly to obtain nano foam acid.
Example 6
460 g of water and 500 g of concentrated hydrochloric acid are added into a 1000mL beaker, then 10 g of lauryl imidazoline betaine, 5 g of amino modified nano silicon dioxide, 10 g of propargyl alcohol solution (20% wt), 10 g of phenylaminophenbutanone solution (20% wt) and 10 g of trisodium citrate are added and stirred uniformly to obtain the nano foamed acid.
Example 7
674 g of water and 300 g of concentrated hydrochloric acid are added into a 1000mL beaker, and then 5 g of lauryl imidazoline betaine, 5 g of amino modified nano silicon dioxide, 5 g of phenylaminophenyl butanone solution (20 percent wt), 10 g of phenylaminophenyl butanone solution (20 percent wt) and 1 g of trisodium citrate are added and stirred uniformly to obtain the nano foam acid.
Performance test:
respectively placing the nano foamed acid prepared in the embodiments 1-7 in a water bath, heating to 60 ℃, stirring for 5min at 5000r/min, transferring to a 500ml measuring cylinder with a plug, and observing and recording the foam height and the half-life period of a liquid to be separated; slicing carbonate rock into core slices of 1.0cm multiplied by 0.1cm, wherein the mass difference is not more than 2%; the core slice was placed at the liquid/foam interface, the time required for complete dissolution of the core slice was recorded, and the erosion rate was calculated and the results are shown in table 1.
TABLE 1 Performance test results for Nanoamac
As can be seen from table 1, the foam volume of the nano foam acid prepared by the method is greater than or equal to 350mL, the foam half-life of the nano foam acid prepared by the embodiments 2 to 7 is greater than or equal to 30min, the foam height and stability can be remarkably enhanced by increasing the dosage of imidazoline betaine, and the compact fine foam is formed along with the increase of nano silicon dioxide, so that the foam volume is reduced, the liquid separation half-life is rapidly increased, the static corrosion rate of carbonate rock is continuously reduced, the acid rock reaction can be effectively delayed, the nano foam acid can be used for carbonate rock stratum acidification operation, the acidification penetration distance is increased, and the purpose of deep acidification is achieved.
Claims (5)
1. The nano foam acid is characterized by comprising the following components in percentage by mass:
0.1-1.0% of long-chain imidazoline betaine;
0.1-2.0% of hydrophilic nano silicon dioxide;
0.5-2.0% of corrosion inhibitor;
0.1-1.0% of iron ion stabilizer;
30-50% of concentrated hydrochloric acid;
the balance of water;
wherein the long-chain imidazoline betaine is one or more compounds shown in a formula (1):
wherein m is 8-18;
the hydrophilic nano silicon dioxide is amino modified nano silicon dioxide with the particle size range of 20-50 nm, and the amino modified nano silicon dioxide is a compound shown in a formula (2):
wherein x represents the degree of modification, and is 0.1 to 5% by mass.
2. A nanofoam acid as recited in claim 1, wherein said long-chain imidazolinium betaine is coco-imidazolinium betaine or lauryl imidazolinium betaine.
3. The nano-foamed acid of claim 1, wherein the corrosion inhibitor is one or more of a propargyl alcohol solution, an anilinobenzone solution, and an anilinobenzone solution.
4. The nanobubble acid of claim 3, wherein the concentration of the solution of propiolic alcohol is 20% by mass; the mass concentration of the phenylaminophenbutanone solution is 20 percent; the mass concentration of the phenylaminobutanone solution is 20 percent.
5. The nanofoam acid of claim 1, wherein the iron ion stabilizer is trisodium citrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711385196.0A CN108165250B (en) | 2017-12-20 | 2017-12-20 | Nano foam acid and preparation method and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711385196.0A CN108165250B (en) | 2017-12-20 | 2017-12-20 | Nano foam acid and preparation method and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108165250A CN108165250A (en) | 2018-06-15 |
| CN108165250B true CN108165250B (en) | 2020-11-06 |
Family
ID=62523008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711385196.0A Active CN108165250B (en) | 2017-12-20 | 2017-12-20 | Nano foam acid and preparation method and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108165250B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112961661B (en) * | 2021-03-19 | 2022-10-18 | 大庆油田有限责任公司 | Nano acid for acidification and blockage removal of low-permeability reservoir |
| CN116004217A (en) * | 2022-11-30 | 2023-04-25 | 汉中聚智达远环能科技有限公司 | Preparation and application methods of high-temperature and high-pressure resistant foam retarded acid solution |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102020983A (en) * | 2009-09-12 | 2011-04-20 | 中国石油化工股份有限公司 | Viscosity-variable diverting acid for improving stratigraphic acidified section |
| CN102746841A (en) * | 2012-06-29 | 2012-10-24 | 中国石油大学(华东) | Nanoparticle-added composite foam system used for oil and gas field and preparation method thereof |
| CN103194191A (en) * | 2013-03-29 | 2013-07-10 | 中国地质大学（武汉） | Foam drilling fluid based on nano silicon dioxide material |
| WO2013160332A1 (en) * | 2012-04-27 | 2013-10-31 | Akzo Nobel Chemicals International B.V. | Foam or viscosified composition containing a chelating agent |
| CN103865515A (en) * | 2012-12-10 | 2014-06-18 | 中国石油天然气股份有限公司 | Steering foam acid suitable for acidification of heterogeneous reservoir |
| CN104213870A (en) * | 2014-08-19 | 2014-12-17 | 中国石油天然气股份有限公司 | Artificial foam oil exploitation method for water-drive heavy oil reservoir |
| CN104893699A (en) * | 2015-05-12 | 2015-09-09 | 中国石油天然气股份有限公司 | Nano foam stabilizer, and preparation method and application thereof |
| CN107474811A (en) * | 2017-09-25 | 2017-12-15 | 中国石油大学(北京) | A kind of microfoam acid solution and preparation method thereof |
-
2017
- 2017-12-20 CN CN201711385196.0A patent/CN108165250B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102020983A (en) * | 2009-09-12 | 2011-04-20 | 中国石油化工股份有限公司 | Viscosity-variable diverting acid for improving stratigraphic acidified section |
| WO2013160332A1 (en) * | 2012-04-27 | 2013-10-31 | Akzo Nobel Chemicals International B.V. | Foam or viscosified composition containing a chelating agent |
| CN102746841A (en) * | 2012-06-29 | 2012-10-24 | 中国石油大学(华东) | Nanoparticle-added composite foam system used for oil and gas field and preparation method thereof |
| CN103865515A (en) * | 2012-12-10 | 2014-06-18 | 中国石油天然气股份有限公司 | Steering foam acid suitable for acidification of heterogeneous reservoir |
| CN103194191A (en) * | 2013-03-29 | 2013-07-10 | 中国地质大学（武汉） | Foam drilling fluid based on nano silicon dioxide material |
| CN104213870A (en) * | 2014-08-19 | 2014-12-17 | 中国石油天然气股份有限公司 | Artificial foam oil exploitation method for water-drive heavy oil reservoir |
| CN104893699A (en) * | 2015-05-12 | 2015-09-09 | 中国石油天然气股份有限公司 | Nano foam stabilizer, and preparation method and application thereof |
| CN107474811A (en) * | 2017-09-25 | 2017-12-15 | 中国石油大学(北京) | A kind of microfoam acid solution and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| Surface behavior of hydrophilic silica nanoparticle-SDS surfactant solutions: I. Effect of nanoparticle concentration on foamability and foam stability;Hamid Vatanparast et.al;《Colloids and Surfaces A: Physicochemical and Engineering Aspects》;20161104;第513卷;第430-441页 * |
| 提高乳化酸稳定性纳米颗粒材料的室内研究;陈晔希 等;《钻采工艺》;20151130;第38卷(第6期);第72-74页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108165250A (en) | 2018-06-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104449631B (en) | Strong gas wettability nano silicon Xie Shui locks the method for agent, its preparation method and rock surface wettability reversal | |
| US10793763B2 (en) | Ultra-dry three-phase flue gas foam for oil-gas fields and preparation method thereof | |
| US7261158B2 (en) | Coarse-foamed fracturing fluids and associated methods | |
| CN113185657B (en) | Nano material and preparation method and application thereof | |
| CN101643641B (en) | Low solid phase and micro-foam drilling fluid or completion fluid capable of being used circularly | |
| CN109439307B (en) | Graphene armor reinforced foam system for oil and gas fields and preparation method thereof | |
| US10934467B2 (en) | Foam fracturing fluid with double interface layers of a phlogisticated air-liquid CO2 for shale gas production and preparation method thereof | |
| WO2017050024A1 (en) | Novel inorganic fine particle enhanced foam system for oil-gas field and preparation method therefor | |
| JP2020532627A (en) | Enhanced high temperature crosslinked crushing fluid | |
| CN108165250B (en) | Nano foam acid and preparation method and use method thereof | |
| US10745281B1 (en) | Composition for multi-component composite intercalation, method of preparing a low-temperature expandable graphite system and method of profile control and water shutoff in deep oil reservoir | |
| Franco-Aguirre et al. | Ca-DTPMP nanoparticles-based nanofluids for the inhibition and remediation of formation damage due to CaCO3 scaling in tight gas-condensate reservoirs | |
| US8662171B2 (en) | Method and composition for oil enhanced recovery | |
| CN106479477A (en) | A kind of encapsulating solids acid and its preparation and application | |
| CN112852398B (en) | High-temperature foam profile control agent for offshore heavy oil steam flooding and application thereof | |
| CN108456511B (en) | In-layer generation of CO2System and use thereof | |
| CN103362532A (en) | Preparation method of colloid foam containing activated carbon for preventing and treating gas emission in goaf | |
| Su et al. | Synthesis and Assessment of a CO2‐Switchable Foaming Agent Used in Drilling Fluids for Underbalanced Drilling | |
| CN107794031B (en) | Nitrogen foam fracturing fluid system suitable for low-pressure lean water-containing coal bed gas well | |
| CN108997994B (en) | Foaming agent for oil displacement and channeling prevention in oil field and preparation method thereof | |
| CN111876138B (en) | Carbon-based tackifier and preparation method and application thereof | |
| US12024975B2 (en) | Self-growing dispersed particle gel active mobility control system and fluid channeling control method for low-permeability-tight reservoir | |
| CN110144202B (en) | High-temperature high-pressure profile control and flooding long-acting foam and preparation method thereof | |
| CN108239532B (en) | Slickwater cleanup additive for shale fracturing, preparation method and application | |
| Xu et al. | Laboratory investigation on CO2 foam flooding for mature fields in Western Australia |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |