CN114539998B - High-temperature profile control channeling sealing agent and preparation method and application thereof - Google Patents
High-temperature profile control channeling sealing agent and preparation method and application thereof Download PDFInfo
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- CN114539998B CN114539998B CN202011336259.5A CN202011336259A CN114539998B CN 114539998 B CN114539998 B CN 114539998B CN 202011336259 A CN202011336259 A CN 202011336259A CN 114539998 B CN114539998 B CN 114539998B
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- 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
- C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
- C09K8/504—Compositions based on water or polar solvents
- C09K8/506—Compositions based on water or polar solvents containing organic compounds
- C09K8/508—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention provides a high-temperature profile control channeling sealing agent and a preparation method and application thereof. The raw materials for preparing the profile control channeling sealing agent comprise the following components in percentage by mass: 5 to 10 percent of fatlute, 0.3 to 1.5 percent of coconut oil fatty acid diethanolamide, 0.2 to 1 percent of sodium alkylbenzenesulfonate, 0.2 to 0.6 percent of 2-acrylamido-2-methylpropanesulfonic acid, 0.5 to 2 percent of alumina, 0.4 to 1 percent of silica powder, 0.2 to 0.5 percent of triethylamine, 0.01 to 0.05 percent of polyethylene polyamine, 0.01 to 0.04 percent of carboxyl rubber, 0.01 to 0.03 percent of cetyltrimethylammonium chloride, 0.01 to 0.03 percent of lignin sulfonate and the balance of water. The profile control channeling blocking agent has excellent temperature resistance, can realize long-well-distance profile control channeling blocking, block deep large pore canals of stratum, and can meet the high-temperature requirements of heavy oil throughput, SAGD (steam assisted gravity drainage) and steam flooding oil reservoirs.
Description
Technical Field
The invention belongs to the technical field of oil extraction, and particularly relates to a high-temperature profile control channeling sealing agent, and a preparation method and application thereof.
Background
Heavy oil handling, SAGD and steam flooding reservoirs form large pore channels under long-term steam scouring, so that the problem of steam channeling is serious, and the regulation and control difficulty is high. The current SAGD and steam flooding oil reservoir regulation technology needs to solve the following technical problems: the current Gao Wenfeng channeling-resistant system mainly takes inorganic cement channeling blocking as a main component, but the cement has high solidification speed at high temperature, limited blocking radius and high cost, and the subsequent steam is extremely easy to bypass, so that a new steam channeling channel is formed. The Wen Hennan resistance of the pure liquid phase profile control system exceeds 150 ℃, so that a new channeling blocking material and a new channeling blocking process are required to be developed to meet the technical requirements of heavy oil throughput, SAGD and steam flooding reservoir channeling blocking.
Disclosure of Invention
The invention aims to provide a high-temperature profile control channeling sealing agent which has excellent temperature resistance, can realize long-well-distance profile control channeling sealing and plugging of deep large pore canals of stratum, and can meet the high-temperature requirements of heavy oil throughput, SAGD (steam assisted gravity drainage) and steam flooding reservoirs.
In order to achieve the above purpose, the invention provides a high-temperature profile control channeling sealing agent, wherein the raw materials for preparing the high-temperature profile control channeling sealing agent comprise the following components in percentage by mass:
5 to 10 percent of fatlute, 0.3 to 1.5 percent of coconut oil fatty acid diethanolamide, 0.2 to 1 percent of sodium alkylbenzenesulfonate, 0.2 to 0.6 percent of 2-acrylamido-2-methylpropanesulfonic acid, 0.5 to 2 percent of alumina, 0.4 to 1 percent of silica powder, 0.2 to 0.5 percent of triethylamine, 0.01 to 0.05 percent of polyethylene polyamine, 0.01 to 0.04 percent of carboxyl rubber, 0.01 to 0.03 percent of cetyltrimethylammonium chloride, 0.01 to 0.03 percent of lignin sulfonate and the balance of water.
In the high-temperature profile control channeling sealing agent, coconut oil fatty acid diethanolamide, sodium heavy alkylbenzenesulfonate and oil sludge are matched, so that thickening of the oil sludge-containing high-temperature profile control channeling sealing agent is effectively realized, and the agent performance of the oil sludge-containing high-temperature profile control channeling sealing agent is ensured to be stable; the addition of the 2-acrylamide-2-methylpropanesulfonic acid can effectively improve the suspension dispersibility of each component in the oil-containing sludge high-temperature profile control channeling sealing agent; the aluminum oxide, the silicon powder and the oil sludge are matched, so that the blocking strength of the high-temperature profile control channeling blocking agent is effectively improved, and the effective period of the high-temperature profile control channeling blocking agent measures is prolonged; the addition of triethylamine can effectively improve the mutual solubility of each component in the high-temperature profile control channeling sealing agent, so that each component can be well matched with each other to improve the utilization rate of each component; the polyethylene polyamine mainly plays a role in solidification, and forms a high-temperature profile control channeling sealing agent after reacting with other components; the carboxyl rubber is used as an adhesive, so that the full reaction of all components is promoted, the blocking performance of the medicament is improved, and the effective period is prolonged; cetyl trimethyl ammonium chloride is used as a stabilizer, so that the stability of the medicament formula is improved, and long-term effectiveness after solidification is ensured; the lignosulfonate is used as retarder, the curing time is delayed, the flash coagulation phenomenon is prevented, and the construction safety injection is ensured.
In the high-temperature profile control channeling blocking agent, preferably, the oil sludge accounts for 6.8-8.5% based on 100% of the total mass of the raw materials for preparing the high-temperature profile control channeling blocking agent.
In the above high temperature profile control channeling blocking agent, preferably, the coconut oil fatty acid diethanolamide accounts for 0.6-1.2% based on 100% of the total mass of the raw materials for preparing the high temperature profile control channeling blocking agent.
In the above high temperature profile control channeling blocking agent, preferably, the sodium heavy alkylbenzenesulfonate accounts for 0.3-0.9% based on 100% of the total mass of the raw materials for preparing the high temperature profile control channeling blocking agent.
In the above high temperature profile control channeling blocking agent, preferably, the ratio of the 2-acrylamido-2-methylpropanesulfonic acid is 0.4-0.5% based on 100% of the total mass of the raw materials for preparing the high temperature profile control channeling blocking agent.
In the above high temperature profile control channeling blocking agent, preferably, the alumina accounts for 0.8-1.8% based on 100% of the total mass of the raw materials for preparing the high temperature profile control channeling blocking agent.
In the high-temperature profile control channeling blocking agent, preferably, the silicon powder accounts for 0.5-0.7% based on 100% of the total mass of raw materials for preparing the high-temperature profile control channeling blocking agent.
In the above high temperature profile control channeling blocking agent, preferably, the triethylamine accounts for 0.3-0.4% based on 100% of the total mass of the raw materials for preparing the high temperature profile control channeling blocking agent.
In the above high temperature profile control channeling blocking agent, preferably, the polyethylene polyamine accounts for 0.025-0.03% based on 100% of the total mass of the raw materials for preparing the high temperature profile control channeling blocking agent.
In the above high temperature profile control channeling blocking agent, preferably, the carboxyl rubber accounts for 0.02-0.04% based on 100% of the total mass of the raw materials for preparing the high temperature profile control channeling blocking agent.
In the above high temperature profile control channeling blocking agent, preferably, the cetyltrimethylammonium chloride is 0.016-0.02% based on 100% of the total mass of the raw materials for preparing the high temperature profile control channeling blocking agent.
In the above high temperature profile control channeling blocking agent, preferably, the lignosulfonate accounts for 0.018-0.03% based on 100% of the total mass of the raw materials for preparing the high temperature profile control channeling blocking agent.
In the high-temperature profile control channeling sealing agent, preferably, the water is oilfield reinjection sewage.
The invention also provides a preparation method of the high-temperature profile control channeling sealing agent, which comprises the following steps:
mixing the oil sludge, coconut oil fatty acid diethanolamide, sodium heavy alkylbenzenesulfonate, 2-acrylamide-2-methylpropanesulfonic acid, aluminum oxide, silicon powder and triethylamine with water to obtain a mixed solution;
and mixing the mixed solution with the polyethylene polyamine, carboxyl rubber, cetyltrimethylammonium chloride and lignosulfonate to obtain the high-temperature profile control channeling sealing agent.
In the above preparation method, preferably, the mixing of the oil sludge, coconut oil fatty acid diethanolamide, sodium heavy alkylbenzenesulfonate, 2-acrylamido-2-methylpropanesulfonic acid, alumina, silica fume, triethylamine and water to obtain a mixed solution is achieved by the following steps: sequentially adding the oil sludge, coconut oil fatty acid diethanolamide, sodium heavy alkylbenzenesulfonate, 2-acrylamide-2-methylpropanesulfonic acid, aluminum oxide, silicon powder and triethylamine into the water, and stirring at normal temperature to obtain the mixed solution. In one embodiment, the stirring time is 20-30 minutes.
In the above preparation method, preferably, the mixing of the mixed solution with the polyethylene polyamine, the carboxyl rubber, the cetyltrimethylammonium chloride and the lignin sulfonate to obtain the high-temperature profile control channeling blocking agent is achieved by the following means: sequentially adding polyethylene polyamine, carboxyl rubber, cetyl trimethyl ammonium chloride and lignin sulfonate into the mixed solution, and stirring at normal temperature to obtain the high-temperature profile control channeling sealing agent. In one embodiment, the stirring is for 10-20 minutes.
The invention also provides application of the high-temperature profile control channeling blocking agent in deep profile control channeling blocking of oil reservoirs at the temperature of above 350 ℃.
The high-temperature profile control channeling sealing agent provided by the invention has the advantages that raw materials are easy to obtain, the preparation method is simple and convenient, meanwhile, the profile control channeling sealing agent has good temperature resistance, the reaction speed and the reaction time can be controlled by adjusting the concentration of the agent and the dosage of each component, and the deep profile control channeling sealing of high-temperature oil reservoirs such as heavy oil throughput, SAGD, steam flooding oil reservoirs and the like can be realized.
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 high-temperature profile control channeling sealing agent, which is prepared from the following raw materials in percentage by mass:
6.8% of oil sludge;
0.6% coconut oil fatty acid diethanolamide;
0.3% by weight sodium alkylbenzenesulfonate;
0.4% 2-acrylamido-2-methylpropanesulfonic acid;
0.8% alumina;
0.5% silicon powder;
0.3% triethylamine;
0.025% polyethylene polyamine;
0.02% of a carboxyl rubber;
0.016% cetyl trimethylammonium chloride;
0.018% lignin sulfonate;
the balance is oilfield reinjection sewage.
The preparation process comprises the following steps:
(1) Sequentially adding the oil sludge, the coconut oil fatty acid diethanolamide, the sodium heavy alkylbenzenesulfonate, the 2-acrylamide-2-methylpropanesulfonic acid, the aluminum oxide, the silicon powder and the triethylamine into a liquid preparation tank containing a proper amount of reinjection sewage, and stirring for 20 minutes at normal temperature;
(2) And then sequentially adding polyethylene polyamine, carboxyl rubber, cetyltrimethylammonium chloride and lignin sulfonate into the liquid preparation tank, and stirring for 15 minutes at normal temperature to obtain the high-temperature profile control channeling sealing agent.
Performance test 1
The high temperature profile control channeling blocking agent provided in example 1 was tested from cure time, flowability and temperature resistance, respectively.
(1) Curing reaction time
In order to verify the controllability of the curing time of the high-temperature profile control channeling sealing agent, a curing time measurement experiment is carried out, and from the experimental data in table 1, the curing reaction time of the high-temperature profile control channeling sealing agent is prolonged to be controllable within 4-9.5 days, so that the occurrence of a flicker phenomenon is effectively prevented, and different formulas can be selected according to the requirements of the field well temperature during construction.
TABLE 1
| Temperature/. Degree.C | 150 | 180 | 220 | 260 | 300 | 350 |
| Curing time/day | 9.5 | 8.5 | 7 | 6 | 5.5 | 4 |
(2) Fluidity test
At room temperature (20-25 ℃), 5 samples of the high temperature profile control channeling blocking agent provided in example 1 were tested for viscosity values at this temperature using a rotary viscometer, which reflects the rheology, i.e., pumpability, of the high temperature profile control channeling blocking agent at this temperature. The experimental results in Table 2 show that the viscosity of the high-temperature profile control channeling sealing agent is 112-121 mPa.s at normal temperature, the pumpability meets the requirement, and the safe injection in the construction process can be ensured.
TABLE 2
(3) Evaluation of temperature resistance
The high temperature profile control channeling sealing agent provided in example 1 is tested for temperature resistance, and the specific method is as follows: injecting the high-temperature profile control channeling sealing agent provided in example 1 into a rock core, wherein the original permeability of the rock core is 3.58 mu m 2 Injecting a high-temperature profile control channeling sealing agent with the concentration of 2.5PV, placing the core into a baking oven with the temperature of 350 ℃ for aging, and measuring the residual resistance coefficient of the core after different aging times, wherein the results are shown in Table 3. As can be seen from Table 3, after aging for 60 days, the residual resistance coefficient of the core is still kept above 15, and the core shows better high-temperature plugging capability.
TABLE 3 Table 3
(4) Comparative analysis experiment
Under the premise that other components of the high-temperature profile control channeling sealing agent provided in the example 1 are unchanged, removing the 2-acrylamide-2-methylpropanesulfonic acid component to obtain a high-temperature profile control channeling sealing agent II, testing the curing reaction time and the temperature resistance of the high-temperature profile control channeling sealing agent II, and carrying out the experimental method in the same way as the curing reaction time and the temperature resistance evaluation of the (1) in the example 1, wherein the results are shown in tables 4 and 5.
TABLE 4 Table 4
| Temperature/. Degree.C | 150 | 180 | 220 | 260 | 300 | 350 |
| Curing time/day | 6.3 | 5.2 | 4.1 | 3 | 2.5 | 1.8 |
TABLE 5
As can be seen from Table 4, when the experimental results of Table 1 are compared, the 2-acrylamido-2-methylpropanesulfonic acid component is removed, the curing time of the high-temperature profile control channeling sealing agent II is influenced, the curing time is 1.8-6.3d, the performance index is lower than that of the experimental data of Table 1, and meanwhile, as can be seen from Table 5, after aging for 30d, the residual resistance coefficient of the rock core is reduced to below 10, after aging for 60d, the residual resistance coefficient of the rock core is only 2.8, the high-temperature blocking capacity is lower than that of the experimental data of Table 3, and the high-temperature profile control channeling sealing agent II lacking the 2-acrylamido-2-methylpropanesulfonic acid component is poor in thermal stability.
Example 2
The embodiment provides a high-temperature profile control channeling sealing agent, which is prepared from the following raw materials in percentage by mass:
8.5% of oil sludge;
1.2% coconut oil fatty acid diethanolamide;
0.9% by weight sodium alkylbenzenesulfonate;
0.5% 2-acrylamido-2-methylpropanesulfonic acid;
1.8% alumina;
0.7% silicon powder;
0.4% triethylamine;
0.03% polyethylene polyamine;
0.04% of a carboxyl rubber;
0.02% cetyl trimethylammonium chloride;
0.03% lignin sulfonate;
the balance is oilfield reinjection sewage.
The preparation process comprises the following steps:
(1) Sequentially adding the oil sludge, the coconut oil fatty acid diethanolamide, the sodium heavy alkylbenzenesulfonate, the 2-acrylamide-2-methylpropanesulfonic acid, the aluminum oxide, the silicon powder and the triethylamine into a liquid preparation tank containing a proper amount of reinjection sewage, and stirring for 20 minutes at normal temperature;
(2) And then sequentially adding polyethylene polyamine, carboxyl rubber, cetyltrimethylammonium chloride and lignin sulfonate into the liquid preparation tank, and stirring for 20 minutes at normal temperature to obtain the high-temperature profile control channeling sealing agent.
Performance test 2
The high temperature profile control channeling blocking agent provided in example 2 was tested from cure time, flowability and temperature resistance, respectively.
(1) Curing reaction time
In order to verify the controllability of the curing time of the high-temperature profile control channeling sealing agent, a curing time measurement experiment is carried out, and from the experimental data in table 6, the curing reaction time of the high-temperature profile control channeling sealing agent is prolonged to be controllable within 4-9.5 days, so that the occurrence of a flicker phenomenon is effectively prevented, and different formulas can be selected according to the requirements of the field well temperature during construction.
TABLE 6
| Temperature/. Degree.C | 150 | 180 | 220 | 260 | 300 | 350 |
| Curing time/day | 7.6 | 7 | 5.8 | 4.5 | 3.2 | 2.5 |
(2) Fluidity test
At room temperature (20 ℃ -25 ℃), 5 samples of the high temperature profile control channeling blocking agent provided in example 2 were tested for viscosity values at this temperature using a rotary viscometer, which reflects the rheology, i.e., pumpability, of the high temperature profile control channeling blocking agent at this temperature. The experimental results in Table 7 show that the viscosity of the high-temperature profile control channeling sealing agent is 136-145 mPa.s at normal temperature, the pumpability meets the requirement, and the safe injection in the construction process can be ensured.
TABLE 7
(3) Evaluation of temperature resistance
The high temperature profile control channeling sealing agent provided in example 2 was tested for temperature resistance, and the specific method was: injecting the high-temperature profile control channeling sealing agent provided in example 2 into a rock core, wherein the original permeability of the rock core is 4.26 mu m 2 Injecting 3PV high-temperature profile control channeling sealing agent, and placing the core into a 350 ℃ oven for agingThe residual resistance coefficients of the cores after different aging times are measured, and the results are shown in Table 8. As can be seen from Table 8, after aging for 60 days, the residual resistance coefficient of the core remains above 17, and the core shows better high-temperature plugging capability.
TABLE 8
(4) Comparative analysis experiment
And (3) removing the carboxyl rubber component on the premise that other components of the high-temperature profile control channeling sealing agent provided in the embodiment 2 are unchanged, so as to obtain a high-temperature profile control channeling sealing agent III, testing the curing reaction time and the temperature resistance of the high-temperature profile control channeling sealing agent III, and performing an experimental method in the same way as the curing reaction time (1) and the temperature resistance evaluation (3) in the embodiment 2, wherein the results are shown in tables 9 and 10.
TABLE 9
| Temperature/. Degree.C | 150 | 180 | 220 | 260 | 300 | 350 |
| Curing time/day | 5.4 | 4.3 | 3.3 | 2.7 | 2.2 | 1.6 |
Table 10
As can be seen from Table 9, when the experimental results of Table 6 are compared, the carboxyl rubber component is removed, the curing time of the high-temperature profile control channeling sealing agent III is influenced, the curing time is 1.6-5.4d, the performance index is inferior to that of the experimental data of Table 6, and meanwhile, as can be seen from Table 10, after aging for 30d, the residual resistance coefficient of the core is reduced to below 10, after aging for 60d, the residual resistance coefficient of the core is only 3.1, the high-temperature blocking capacity is inferior to that of the experimental data of Table 8, and the high-temperature profile control channeling sealing agent III lacking the carboxyl rubber component is poor in thermal stability.
Example 3
The present embodiments provide examples of the application of the high temperature profile control channeling blocking agent in the profile control channeling blocking of SAGD reservoir production wells.
The high-temperature profile control channeling sealing agent provided in example 2 is prepared on site by testing 3 times in 84 sites of Liaohe oilfield, and is injected into the bottom of a well by using pumping equipment, wherein the average single well dosage is 2550 square, and the discharge capacity is 8m 3 And/h, the injection pressure is within 12MPa, the measure success rate reaches 100%, the integrated oil content is 3560 tons, the comprehensive water content is reduced by 12.6%, the oil and water increasing effect is obvious, good economic and social benefits are obtained, and meanwhile, the reasonable and effective utilization of the oil sludge resources is realized.
Claims (10)
1. The high-temperature profile control channeling sealing agent comprises the following raw materials in percentage by mass:
5 to 10 percent of fatlute, 0.3 to 1.5 percent of coconut oil fatty acid diethanolamide, 0.2 to 1 percent of sodium alkylbenzenesulfonate, 0.2 to 0.6 percent of 2-acrylamido-2-methylpropanesulfonic acid, 0.5 to 2 percent of alumina, 0.4 to 1 percent of silica powder, 0.2 to 0.5 percent of triethylamine, 0.01 to 0.05 percent of polyethylene polyamine, 0.01 to 0.04 percent of carboxyl rubber, 0.01 to 0.03 percent of cetyltrimethylammonium chloride, 0.01 to 0.03 percent of lignin sulfonate and the balance of water;
the high-temperature profile control channeling sealing agent can be prepared by the following preparation method:
mixing oil sludge, coconut oil fatty acid diethanolamide, sodium heavy alkylbenzenesulfonate, 2-acrylamide-2-methylpropanesulfonic acid, aluminum oxide, silicon powder and triethylamine with water to obtain a mixed solution;
and mixing the mixed solution with polyethylene polyamine, carboxyl rubber, cetyltrimethylammonium chloride and lignosulfonate to obtain the high-temperature profile control channeling blocking agent.
2. The high temperature profile control channeling sealing agent of claim 1, wherein the sludge is 6.8-8.5% based on 100% of the total mass of the raw material for preparing the high temperature profile control channeling sealing agent.
3. The high temperature profile control channeling blocking agent of claim 1, wherein said coconut oil fatty acid diethanolamide is present in a ratio of 0.6 to 1.2% based on 100% of the total mass of the raw material from which the high temperature profile control channeling blocking agent is prepared.
4. The high temperature profile control channeling blocking agent according to claim 1, wherein the total mass of the raw materials for preparing the high temperature profile control channeling blocking agent is 100%,
the weight ratio of the sodium salt of the heavy alkylbenzene sulfonate is 0.3-0.9%;
the proportion of the 2-acrylamido-2-methylpropanesulfonic acid is 0.4-0.5%.
5. The high temperature profile control channeling sealing agent of claim 1, wherein,
the proportion of the alumina is 0.8-1.8%;
the silicon powder accounts for 0.5 to 0.7 percent.
6. The high temperature profile control channeling sealing agent of claim 1, wherein,
the triethylamine accounts for 0.3-0.4 percent;
the polyethylene polyamine accounts for 0.025-0.03 percent;
the carboxyl rubber accounts for 0.02-0.04%.
7. The high temperature profile control channeling sealing agent of claim 1, wherein,
the hexadecyl trimethyl ammonium chloride accounts for 0.016-0.02 percent;
the lignosulfonate accounts for 0.018-0.03%.
8. The high temperature profile control channeling sealing agent of claim 1, wherein said water is oilfield reinjection sewage.
9. The method for preparing the high-temperature profile control channeling blocking agent according to any one of claims 1-8, comprising the following steps:
mixing oil sludge, coconut oil fatty acid diethanolamide, sodium heavy alkylbenzenesulfonate, 2-acrylamide-2-methylpropanesulfonic acid, aluminum oxide, silicon powder and triethylamine with water to obtain a mixed solution;
and mixing the mixed solution with polyethylene polyamine, carboxyl rubber, cetyltrimethylammonium chloride and lignosulfonate to obtain the high-temperature profile control channeling blocking agent.
10. The use of the high temperature profile control channeling blocking agent of any of claims 1-8 in deep channeling blocking of a fire-flooding reservoir above 350 ℃.
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