CN115678525B - Sand-fixing agent and preparation method and application thereof - Google Patents
Sand-fixing agent and preparation method and application thereof Download PDFInfo
- Publication number
- CN115678525B CN115678525B CN202110855991.1A CN202110855991A CN115678525B CN 115678525 B CN115678525 B CN 115678525B CN 202110855991 A CN202110855991 A CN 202110855991A CN 115678525 B CN115678525 B CN 115678525B
- Authority
- CN
- China
- Prior art keywords
- sand
- fixing agent
- inorganic particles
- phenolic resin
- resin
- 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
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 87
- 239000004576 sand Substances 0.000 claims abstract description 75
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 49
- 239000010954 inorganic particle Substances 0.000 claims abstract description 48
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 48
- 239000005011 phenolic resin Substances 0.000 claims abstract description 48
- 229920005989 resin Polymers 0.000 claims abstract description 47
- 239000011347 resin Substances 0.000 claims abstract description 47
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 40
- 239000010703 silicon Substances 0.000 claims abstract description 40
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000005507 spraying Methods 0.000 claims abstract description 31
- 238000001035 drying Methods 0.000 claims abstract description 18
- 238000010276 construction Methods 0.000 claims abstract description 17
- 239000013067 intermediate product Substances 0.000 claims abstract description 14
- 239000003129 oil well Substances 0.000 claims abstract description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 80
- 230000035699 permeability Effects 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 14
- 239000003921 oil Substances 0.000 claims description 14
- 238000007596 consolidation process Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 9
- 229920002050 silicone resin Polymers 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 229920001225 polyester resin Polymers 0.000 claims description 3
- 239000004645 polyester resin Substances 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims 3
- 238000003756 stirring Methods 0.000 claims 2
- 238000005086 pumping Methods 0.000 abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000006185 dispersion Substances 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 18
- 239000007788 liquid Substances 0.000 description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- 239000011259 mixed solution Substances 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000012752 auxiliary agent Substances 0.000 description 3
- -1 demulsifiers Substances 0.000 description 3
- 239000003085 diluting agent Substances 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000007822 coupling agent Substances 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 150000003376 silicon Chemical class 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 239000002318 adhesion promoter Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 230000002595 cold damage Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Abstract
The invention provides a sand-fixing agent, a preparation method and application thereof. The sand fixing agent comprises inorganic particles, phenolic resin and organic silicon resin, wherein the phenolic resin is coated on the surfaces of the inorganic particles, and the organic silicon resin is coated on the surfaces of the phenolic resin. The invention also provides a preparation method of the sand-fixing agent, which comprises the steps of spraying phenolic resin solution on the surfaces of inorganic particles, drying for the first time to obtain an intermediate product, spraying organic silicon resin solution on the surfaces of the intermediate product, and drying for the second time to obtain the sand-fixing agent. The invention further provides application of the sand-fixing agent in sand-fixing construction of steam-injected thick oil wells and/or fireflooding thick oil wells at the temperature of more than 300 ℃. The sand-fixing agent provided by the invention takes inorganic particles as a dispersion carrier, can enable resin to be uniformly dispersed in water, is beneficial to pumping, and has the advantages of low cost, high cementing strength and good temperature resistance.
Description
Technical Field
The invention relates to the technical field of oil well chemical sand prevention in the field of oil extraction engineering, in particular to a sand fixing agent and a preparation method and application thereof.
Background
The heavy oil yield of Liaohe oil field is high and the sand production problem is generally serious. After sand production of the oil well, the oil well is generally treated by adopting methods such as high-temperature artificial well wall, high-temperature fracturing sand prevention or sand prevention of a screen pipe in a shaft, and the methods have complex construction and high measure cost. The conventional high-temperature-resistant resin sand-fixing agent is mainly prepared by modifying phenolic resin, and because the resin has high viscosity, high concentration and difficult dispersion, the sand-fixing effect of directly pumping into a stratum is not ideal, and complex construction technology is needed, for example, ethanol is adopted as a diluent and carrying liquid of the resin, or complex auxiliary agents are adopted for compounding (such as adding dispersing agents, mutual solvents, curing agents, demulsifiers, coupling agents and the like), the sand-fixing cost is increased, and the danger of inflammability and explosiveness is also caused.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a sand-fixing agent, a preparation method and application thereof, wherein inorganic particles are used as a carrier for carrying resin, so that the resin can be uniformly dispersed in water, pumping is facilitated, the cost is low, the cementing strength is high, and the temperature resistance is good.
In order to achieve the aim, the invention provides a sand fixing agent which comprises inorganic particles, phenolic resin and organic silicon resin, wherein the sand fixing agent takes the inorganic particles as cores, the phenolic resin is coated on the surfaces of the inorganic particles, the organic silicon resin is coated on the surfaces of the phenolic resin, the granularity of the inorganic particles is 600-1000 meshes, and the mass ratio of the phenolic resin to the organic silicon resin to the inorganic particles is 0.3-0.6:0.1-0.4:1.
In the specific embodiment of the invention, the sand fixing agent is formed by directly loading phenolic resin and organic silicon resin on the surfaces of inorganic particles, does not need to add auxiliary agents such as coupling agents and the like, and has simple components; the formed sand fixing agent can be directly pumped by clean water, does not need to adopt diluents such as ethanol and the like and carrying liquid for conveying, simplifies the construction process, has safe and efficient process and saves cost. In some embodiments, the particle size of the sand fixing agent is generally controlled to 600-1000 mesh to facilitate resin spraying, adsorption, and pumping in situ.
In the sand-fixing agent, the inorganic particles are used as carriers of the phenolic resin and the organic silicon resin, so that the organic silicon resin and the phenolic resin can be uniformly dispersed in water on one hand, and the pumping of the sand-fixing agent is facilitated; on the other hand, the inorganic particles can also provide solid support for the phenolic resin and the organic silicon resin, so that the sand fixing effect is improved. When the consumption of the sand-fixing agent is excessive and the stratum permeability loss is too high, the blocking removal can be performed by pumping acid liquor to dissolve inorganic particles in the sand-fixing agent.
In a specific embodiment of the present invention, the inorganic particles may be particles having porous surfaces so as to absorb the silicone resin and the phenolic resin, and ensure the coating amounts of the two resins on the surfaces of the inorganic particles.
In the embodiment of the present invention, the inorganic particles are generally particles that can be dissolved by an acid solution, for example, calcium carbonate, silica, etc., and the acid solution used for dissolving the inorganic particles may be hydrochloric acid, hydrofluoric acid, etc. The inorganic particles are powder particles with low density and low strength resistance, and the excessive granularity can lead to the excessive fineness of the inorganic particles and cause the agglomeration of the sand fixing agent; too low a particle size results in too large, high density, and unfavorable pumping of the inorganic particles, which in particular embodiments are controlled to a particle size of 600-1000 mesh.
In a specific embodiment of the invention, the phenolic resin and the organic silicon resin are sequentially coated on the surfaces of the inorganic particles to form a phenolic resin layer and an organic silicon resin layer. Wherein the coating thickness of the phenolic resin on the surface of the inorganic particles (i.e. the thickness of the phenolic resin layer) is generally controlled to be 5-10 μm, and the coating thickness of the organic silicon resin on the surface of the phenolic resin (i.e. the thickness of the organic silicon resin layer) is generally controlled to be 5-10 μm.
In a specific embodiment of the invention, the organic silicon resin and the phenolic resin positioned on the outer surface and the secondary outer surface of the sand fixing agent can be consolidated and solidified under the high-temperature condition in the well after being contacted with stratum sand, so as to play a role in preventing sand of consolidating free sand of the stratum, specifically, the phenolic resin can be 219 phenolic resin and the like, the organic silicon resin can be silicon resin or modified silicon resin and the like, wherein the modified silicon resin can comprise organic silicon modified polyester resin, organic silicon modified epoxy resin and organic silicon modified phenolic resin.
In the specific embodiment of the invention, the organic silicon resin and the phenolic resin in the sand fixing agent can still keep certain cementing strength after carbonization at 180 ℃, namely have certain high temperature resistance. In some embodiments, the sand fixing agent may be resistant to temperatures up to 350 ℃, such as high temperatures of 300-350 ℃. In addition, the curing agent also has the property of high pressure resistance, and the compression strength can reach 5MPa at most.
In the specific embodiment of the invention, the organic silicon resin and the phenolic resin on the surface of the sand fixing agent can be bonded and solidified with the free sand of the stratum, the clay mineral of the stratum and the sand body of the stratum to play a role of solidifying the free sand of the stratum, so that the sand fixing agent does not contain the common adhesion promoters such as a silane coupling agent and the like.
In a specific embodiment of the invention, the mass ratio of the phenolic resin, the silicone resin and the inorganic particles is 0.45:0.25:1.
The invention also provides a preparation method of the sand fixing agent, which comprises the following steps: spraying phenolic resin solution on the surfaces of inorganic particles, drying for the first time to obtain an intermediate product, spraying organic silicon resin solution on the surfaces of the intermediate product, and drying for the second time to obtain the sand fixing agent.
In a specific embodiment of the present invention, the temperature of the first drying is generally controlled to 80-90 ℃, and the time of the first drying is generally controlled to 8-10 h.
In a specific embodiment of the present invention, the temperature of the second drying is generally controlled to 80-90 ℃, and the time of the second drying is generally controlled to 8-10 h.
In embodiments of the present invention, the spraying may be achieved by a spray gun, pressure spray can, or the like, and in some embodiments, the spraying may be performed by placing a phenolic resin solution (diluted) into the spray device, spraying onto the surface of the inorganic particles in a sand mixer, which is continuously stirred until the sprayed amount reaches a mass ratio (of phenolic resin to inorganic particles); and then the organic silicon resin solution (diluted) is placed into spraying equipment, the surface of an intermediate product in a sand mixer is sprayed, and the sand mixer is continuously stirred until the spraying amount reaches the mass ratio of the organic silicon resin to the inorganic particles. In some embodiments, the phenolic resin solution generally has a mass concentration of 30% to 60%. The mass concentration of the organic silicon resin solution is generally 10 to 40 percent
In the spraying process, the temperature of the spraying is generally controlled to be room temperature, and the time of the spraying is generally controlled to be longer than required to reach the quality ratio.
In a specific embodiment of the present invention, the mass concentration of the phenolic resin solution is generally controlled to be 30-60%.
In a specific embodiment of the present invention, the mass concentration of the silicone resin solution is generally controlled to be 10 to 40%.
The invention further provides application of the sand-fixing agent in sand-fixing construction of steam-injected thick oil wells and/or fireflooding thick oil wells at the temperature of more than 300 ℃. The sand fixing agent has good high temperature resistance, can be suitable for sand fixing construction of a heavy oil well, has simple pumping conditions, can be pumped by adopting a single 700-type cement pump truck with clean water, and does not need to independently distribute other solvents or curing agents. The sand-fixing agent can be effectively solidified with free sand of stratum after being pumped into the well, has high cementing strength and can resist high temperature of 300 ℃ or higher, for example, can be used for sand-fixing construction of an oil field steam injection development well with steam temperature of 350-380 ℃.
In a specific embodiment, the adding condition of the sand-fixing agent is generally determined according to the actual stratum condition, and the dosage of the sand-fixing agent in an oil layer per meter is generally controlled to be 30-40Kg in order to avoid excessive stratum permeability loss.
In particular embodiments, water is typically pumped into the formation with a sand-fixing agent forming a mixture, wherein the mass concentration of sand-fixing agent in the mixture may be 3% to 10% per cubic meter.
In the specific embodiment of the invention, the sand-fixing agent can be used for solidifying a free sand layer of a stratum, reducing the problems of oil well production stopping and pump detection caused by sand production of an oil layer and cold damage to a steam zone in a well. When the permeability loss of the stratum is too high after the sand-fixing agent is added, the inorganic particle solution in the sand-fixing agent can be pumped into the acid liquid, so that the blocking removal and the stratum permeability recovery can be realized, therefore, the permeability loss caused by the sand-fixing agent in the sand-fixing construction is generally controlled below 14% (preferably below 10%), and the great reduction of the oil well liquid amount and the reduction of the yield after the sand-fixing construction are avoided.
The invention has the beneficial effects that:
the invention forms the sand fixing agent capable of being directly pumped by clean water by taking inorganic particles as a resin carrier. The sand fixing agent does not need to add complex auxiliary agents and has simple components; ethanol is not needed as a diluent and a carrier liquid, so that the pumping condition of the resin sand fixation is simplified, and the sand fixation cost is reduced. The sand-fixing agent has higher cementing strength and sand-preventing performance when being applied to sand-fixing construction, can resist high-temperature conditions of more than 300 ℃ and has good thermal stability.
Drawings
FIG. 1 is a photograph of a cured core of test example 1 after receiving a compressive strength of 5MPa.
FIG. 2 shows the consolidation strength, permeability and permeability loss for different formulation concentrations in test example 1.
Detailed Description
The technical solution of the present invention will be described in detail below for a clearer understanding of technical features, objects and advantageous effects of the present invention, but should not be construed as limiting the scope of the present invention.
Example 1
The embodiment provides a preparation method of a sand fixing agent, which comprises the following steps:
1. calcium carbonate particles with the granularity of 600-1000 meshes are selected as inorganic particles, a phenolic resin solution (219 phenolic resin solution) with the mass concentration of 30-60% is sprayed on the surfaces of the inorganic particles by a spray gun in a powder mixer, and the following parameters are controlled in the spraying process: under the condition of room temperature, the rotating speed of the sand mixer is stabilized to be 60 revolutions per minute. And then drying the sprayed inorganic particles at 80-90 ℃ for 8-10h to obtain an intermediate product.
2. In a powder mixer, spraying an organic silicon resin (organic silicon resin is organic silicon modified polyester resin) solution with the mass concentration of 10-40% on the surface of an intermediate product in a spraying mode, and controlling the following parameters in the spraying process: under the condition of room temperature, the rotating speed of the sand mixer is 60 revolutions per minute. And (3) drying the sprayed intermediate product at 80-90 ℃ for 8-10h to obtain the sand-fixing agent, wherein the granularity of the sand-fixing agent is 600-1000 meshes.
In the process, the mass ratio of the phenolic resin to the organic silicon resin to the inorganic particles is 0.45:0.25:1.
The prepared sand fixing agent is used for well cementation construction of an 1-46-040 well in an oil field, the well is periodically produced for 142 days before sand fixing measures, the pump is checked for 2 times, the total production liquid is 1434.8 tons, the total production oil is 242.4 tons, and daily oil production is 1.7 tons.
Pumping sand-fixing agent into the 1-46-040 well of the dawn oil field by clear water to perform sand-fixing measures under the same construction conditions, and stopping 2021, 4, 9 days after the measures, continuously producing the oil for 364.2 tons without checking the pump for 70.5 days, 1384.8 tons of total oil production liquid and 5.2 tons of daily oil production. From the construction results, the sand fixing agent of the embodiment can effectively prevent sand and improve oil yield and liquid yield.
Example 2
The embodiment provides a preparation method of a sand fixing agent, which comprises the following steps:
1. selecting silicon dioxide with the granularity of 600-1000 meshes as inorganic particles, spraying a phenolic resin solution (219 phenolic resin solution) with the mass concentration of 30-60% on the surfaces of the inorganic particles in a powder mixer through a spray gun, and controlling the following parameters in the spraying process: and under the room temperature condition, the rotating speed of the sand mixing agent is stabilized to be 60 revolutions per minute. And then drying the sprayed inorganic particles at 80-90 ℃ for 8-10h to obtain an intermediate product.
2. In a powder mixer, spraying an organic silicon resin (organic silicon resin is organic silicon modified epoxy resin) solution with the mass concentration of 10-40% on the surface of an intermediate product through a spraying gun, and controlling the following parameters in the spraying process: under the condition of room temperature, the rotating speed of the sand mixing agent is stabilized to be 60 revolutions per minute. And (3) drying the sprayed intermediate product at 80-90 ℃ for 8-10h to obtain the sand-fixing agent, wherein the granularity of the sand-fixing agent is 600-1000 meshes.
In the process, the mass ratio of the phenolic resin to the organic silicon resin to the inorganic particles is 0.45:0.25:1.
Test example 1
The test example tests the cementing strength of the sand fixing agent and free sand, the test method is that a stratum sand sample of a certain area is selected, stratum sand is filled into the core holder according to the capacity in the core holder, hot water (more than 90 ℃) is circularly pumped into the core holder, after two cycles are pumped, the sand fixing agent of the example 2 is uniformly stirred in a water pump according to 9% of the weight of the stratum sand, the core holder is circularly pumped, after the pumping, hot water (more than 90 ℃) is continuously pumped, after the two cycles, the core tube is taken out and put into a high-temperature oven, and the temperature is set to 150 ℃. And (5) waiting for 5-8h for solidification, taking out the core, and placing the core under a pressure tester for strength test. Fig. 1 is a photograph of a consolidated core after receiving a compressive strength of 5MPa, and fig. 2 is a graph of consolidation strength, permeability, and permeability loss for different formulation concentrations. As can be seen from fig. 1, after the core is consolidated by the sand-fixing agent, the surface of the core is free from cracks and falling after receiving the compressive strength of 5MPa, which proves that the sand-fixing agent provided by the invention has higher consolidation strength.
The abscissa of fig. 2 represents 3% -10% of the mass concentration of the sand-fixing agent contained in the mixed solution of water and the sand-fixing agent per m3, and the ordinate represents the consolidation strength, permeability and permeability loss generated by sand-fixing construction of the mixed solution of the specific sand-fixing agent concentration. As can be seen from fig. 2, the preferable mass concentration of the sand-fixing agent in the mixed solution formed by water and the sand-fixing agent is 7-8%, the sand-fixing agent mixed solution with the mass concentration is pumped into the stratum to adsorb the surface of stratum sand, and after the stratum free sand is solidified, the influence on the permeability is lower and the sand-fixing effect is more balanced compared with the sand-fixing agent mixed solution with other concentrations under the condition of higher compressive strength and solidification strength.
In the application process of the sand-fixing agent, when the stratum permeability loss is too high, the blockage can be removed by pumping acid liquor to dissolve the sand-fixing agent. Compared with the common sand fixing agent, the sand fixing agent provided by the invention is less prone to cause permeability loss, and can solve the problem by pumping acid liquor when the stratum permeability loss is too high.
Claims (15)
1. The sand-fixing agent comprises inorganic particles, phenolic resin and organic silicon resin, wherein the inorganic particles are taken as cores, the phenolic resin is coated on the surfaces of the inorganic particles, and the organic silicon resin is coated on the surfaces of the phenolic resin;
the inorganic particles are soluble in an acid, the inorganic particles comprising calcium carbonate and/or silica; the particle size of the inorganic particles is 600-1000 meshes, and the mass ratio of the phenolic resin to the organic silicon resin to the inorganic particles is 0.3-0.6:0.1-0.4:1.
2. The sand consolidation agent according to claim 1, wherein the coating thickness of the phenolic resin on the surface of the inorganic particles is 5-10 μm, and the coating thickness of the silicone resin on the surface of the phenolic resin is 5-10 μm.
3. The sand consolidation agent of claim 1, wherein the phenolic resin comprises 219 phenolic resin.
4. The sand consolidation agent of claim 1, wherein the silicone resin comprises a modified silicone resin or a silicone resin.
5. The sand consolidation agent of claim 4, wherein the modified silicone resin comprises a silicone modified polyester resin, a silicone modified epoxy resin, a silicone modified phenolic resin.
6. The sand consolidation agent of any one of claims 1-5, wherein the sand consolidation agent has a particle size of 600-1000 mesh;
the sand-fixing agent can resist the temperature below 350 ℃, and the compressive strength of the sand-fixing agent is less than or equal to 5MPa.
7. The sand consolidation agent of claim 6, wherein the sand consolidation agent is capable of withstanding temperatures of 300-350 ℃.
8. A method of preparing the sand fixing agent as claimed in any one of claims 1 to 7, comprising: spraying phenolic resin solution on the surfaces of inorganic particles, drying for the first time to obtain an intermediate product, spraying organic silicon resin solution on the surfaces of the intermediate product, and drying for the second time to obtain the sand fixing agent.
9. The preparation method according to claim 8, wherein the spraying process comprises the steps of placing a phenolic resin solution into a spraying device, spraying the phenolic resin solution onto the surfaces of inorganic particles in a sand mixer, and continuously stirring the sand mixer until the spraying amount reaches a mass ratio; and (3) placing the organic silicon resin solution into spraying equipment, spraying the organic silicon resin solution onto the surface of an intermediate product in a sand mixer, and continuously stirring the sand mixer until the spraying amount reaches the mass ratio.
10. The preparation method according to claim 9, wherein the temperature of the first drying and/or the second drying is 80-90 ℃, and the time of the first drying and/or the second drying is 8-10 h.
11. The production method according to any one of claims 8 to 10, wherein the mass concentration of the phenolic resin solution is 30 to 60%, and the mass concentration of the silicone resin solution is 10 to 40%.
12. Use of the sand-fixing agent according to any one of claims 1 to 7 in sand-fixing construction of steam-injected and/or fireflooding thick oil wells at a temperature above 300 ℃.
13. The use according to claim 12, wherein the sand-fixing agent is used in an amount of 30-40Kg per meter of oil layer.
14. The use according to claim 12 or 13, wherein the sand-fixing agent causes a permeability loss of 14% or less in the sand-fixing construction.
15. The use of claim 14, wherein the sand fixing agent causes a permeability loss of 10% or less in the sand fixing construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110855991.1A CN115678525B (en) | 2021-07-28 | 2021-07-28 | Sand-fixing agent and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110855991.1A CN115678525B (en) | 2021-07-28 | 2021-07-28 | Sand-fixing agent and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115678525A CN115678525A (en) | 2023-02-03 |
| CN115678525B true CN115678525B (en) | 2023-12-26 |
Family
ID=85059041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110855991.1A Active CN115678525B (en) | 2021-07-28 | 2021-07-28 | Sand-fixing agent and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115678525B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006061551A1 (en) * | 2004-12-12 | 2006-06-15 | Halliburton Energy Services, Inc. | Low-quality particulates and methods of making and using improved low-quality particulates |
| CN101942296A (en) * | 2010-09-10 | 2011-01-12 | 中国石油天然气股份有限公司 | Fiber composite sand control material and preparation method thereof |
| CN102167969A (en) * | 2009-10-26 | 2011-08-31 | 禾逊专业化学公司 | Low temperature coated particles for use as proppants or in gravel packs, methods for making and using the same. |
| CN102660245A (en) * | 2012-03-31 | 2012-09-12 | 北京奇想达科技有限公司 | Pre-coated film propping agent, preparation method of the pre-coated film propping agent and sand prevention method adopting the pre-coated film propping agent |
| CN103160271A (en) * | 2012-12-28 | 2013-06-19 | 北京仁创科技集团有限公司 | Preparation method for lumpish sand prevention proppant |
| CN104592965A (en) * | 2013-10-30 | 2015-05-06 | 天津大港油田钻采技术开发公司 | Double-coating gel-coated sand-preventing particle and preparation method thereof |
| CN105555909A (en) * | 2013-09-20 | 2016-05-04 | 贝克休斯公司 | Composites for use in stimulation and sand control operations |
| CN106634918A (en) * | 2016-11-17 | 2017-05-10 | 中国石油天然气股份有限公司 | High-intensity modified resin sand consolidating agent |
-
2021
- 2021-07-28 CN CN202110855991.1A patent/CN115678525B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006061551A1 (en) * | 2004-12-12 | 2006-06-15 | Halliburton Energy Services, Inc. | Low-quality particulates and methods of making and using improved low-quality particulates |
| CN102167969A (en) * | 2009-10-26 | 2011-08-31 | 禾逊专业化学公司 | Low temperature coated particles for use as proppants or in gravel packs, methods for making and using the same. |
| CN101942296A (en) * | 2010-09-10 | 2011-01-12 | 中国石油天然气股份有限公司 | Fiber composite sand control material and preparation method thereof |
| CN102660245A (en) * | 2012-03-31 | 2012-09-12 | 北京奇想达科技有限公司 | Pre-coated film propping agent, preparation method of the pre-coated film propping agent and sand prevention method adopting the pre-coated film propping agent |
| CN103160271A (en) * | 2012-12-28 | 2013-06-19 | 北京仁创科技集团有限公司 | Preparation method for lumpish sand prevention proppant |
| CN105555909A (en) * | 2013-09-20 | 2016-05-04 | 贝克休斯公司 | Composites for use in stimulation and sand control operations |
| CN104592965A (en) * | 2013-10-30 | 2015-05-06 | 天津大港油田钻采技术开发公司 | Double-coating gel-coated sand-preventing particle and preparation method thereof |
| CN106634918A (en) * | 2016-11-17 | 2017-05-10 | 中国石油天然气股份有限公司 | High-intensity modified resin sand consolidating agent |
Non-Patent Citations (2)
| Title |
|---|
| A New Phenolic Resin for Sand Control in Wells;Zhang, FS, 等;CHEMISTRY AND TECHNOLOGY OF FUELS AND OILS;第49卷(第5期);第425-429页 * |
| 有机硅改性酚醛树脂固砂剂的制备、表征及固砂性能;李杰;刘宇;朱瑞华;盖鸿飞;彭玉龙;化学与生物工程;第32卷(第09期);第34-36页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115678525A (en) | 2023-02-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3404735A (en) | Sand control method | |
| CN102660245B (en) | Pre-coated film propping agent, preparation method of pre-coated film propping agent and sand prevention method adopting pre-coated film propping agent | |
| CN108659805B (en) | Emulsion type low-temperature sand consolidation agent and preparation method and application thereof | |
| CN1309798C (en) | Follow-drilling plugging agent and its preparation method and use | |
| CN110551491B (en) | Coating plugging agent, preparation method thereof and plugging slurry | |
| CN109401739B (en) | High-temperature-resistant shielding temporary plugging agent, preparation method and application | |
| CN105038741A (en) | Cementing fluid system and preparation method of same | |
| CN103160271A (en) | Preparation method for lumpish sand prevention proppant | |
| US3759327A (en) | Internally catalyzed well consolidation method | |
| CN111088028A (en) | Ultralow-density proppant and preparation method and application thereof | |
| CN103589409B (en) | Oil well cement lightening agent and methods for making and using same thereof | |
| CN115678525B (en) | Sand-fixing agent and preparation method and application thereof | |
| CN109370560B (en) | Heavy metal mineralized substance warm-curing resin precoated sand and preparation method and application thereof | |
| CN113004879A (en) | Well wall pressure-bearing plugging agent and preparation method thereof | |
| CN111560240B (en) | Ultramicro-grade channeling and plugging agent as well as preparation method and application thereof | |
| CN112282722B (en) | Low-density organic water-control proppant and preparation method thereof | |
| CN109321226A (en) | A kind of preparation method of fracturing propping agents | |
| CN114479789B (en) | High-temperature high-pressure expandable plugging agent composition, preparation method and application thereof | |
| CN106634919B (en) | A kind of containing consolidated sand system and preparation method thereof and application method | |
| CN109880604A (en) | A kind of oil-well cement solidifying type early strength agent of weak rush | |
| CN111978943B (en) | Self-adaptive sand prevention and consolidation material | |
| CN114574179A (en) | Pressure response type consolidation plugging agent and preparation method and application thereof | |
| CN112239527A (en) | Is suitable for resisting CO2Corrosion inhibitor for corrosion cement slurry system and preparation method | |
| CN112646564B (en) | Magnetic hydrophobic propping agent and preparation method thereof | |
| CN117757460A (en) | Sustained-release propping agent and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| 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 |