Preparation and use method of composite gel profile control and water plugging agent for deep part of oil field

Abstract

The invention discloses a preparation and use method of a composite gel profile control and water plugging agent for the deep part of an oil field, and the preparation method comprises the following steps: adding a polymer into a water glass aqueous solution with the concentration of 3-10% under stirring, and uniformly stirring to obtain a component A; in another reaction container, firstly adding water, then adding an emulsifier with the mass being 0.5%-1.5% of that of the water, uniformly stirring, continuously adding a mixed solution of acetic anhydride and ethyl acetate, and stirring to form a stable emulsion, so as to obtain a component B; 5, the component A and the component B are separated and subpackaged according to the volume ratio of 10: (1-3), and the deep composite gel profile control and water plugging agent is obtained. The added acetic anhydride is slowly released and hydrolyzed to generate acetic acid, so that the generation time of the silicic acid gel is prolonged by more than 12 hours, the gelling time is greatly delayed, the gel liquid can enter the deep part of a reservoir of an oil well within enough time, and the effect of profile control and water plugging in the deep part is achieved.

Description

Technical Field

[0001] The invention relates to the field of oil field petroleum exploitation, and in particular to a preparation method and use method of a composite gel profile control and water plugging agent for deep oil fields. Background Art

[0002] When oil fields enter the late stage of development, water production from oil wells is a common problem, which not only affects oil recovery efficiency and oil quality, but also causes huge economic losses. It is necessary to carry out profile adjustment and water plugging, especially for oil fields that adopt water injection development and multi-layer combined production. Profile adjustment and water plugging operations are particularly important in the late stage of oil production.

[0003] A more effective way to control water production from oil wells is to inject chemical plugging agents into the water-producing layers of oil wells and water injection wells, thereby reducing the water phase permeability of the high permeability water-producing layers, effectively blocking the high permeability, and forcing the injected water to enter the medium and low permeability layers, improving its sweep coefficient and increasing the oil recovery rate.

[0004] As water plugging operations become more frequent, the amount of plugging agents used continues to increase. Currently, polymer organic water plugging and profile control agents are widely used in oil fields. Due to their high prices, they increase the cost of profile control and water plugging operations and are not environmentally friendly.

[0005] In contrast, silica gel plugging agents have the advantages of low price, high plugging efficiency, good temperature resistance and salt resistance, etc., and are widely used in oil well development as non-selective water plugging agents for oil wells and profile control agents in the near-wellbore area of ​​water wells. However, silica gel plugging agents have a short gelling time. After adding acid to the sodium silicate / water glass solution, it often takes only a few minutes to ten minutes to form a gel, which makes it difficult to perform deep profile control and water plugging, and can only form a plug near the wellbore area; and silica gel plugging agents also have the disadvantages of high colloid hardness and brittleness and easy to break, which seriously affects the effect of profile control and water plugging.

[0006] Therefore, there is an urgent need to develop an efficient profile control and water plugging agent that can enter the deep reservoir of oil wells. Summary of the invention

[0007] The object of the present invention is to provide a method for preparing a highly efficient deep composite gel profile control and water plugging agent having a polymer-silicic acid composite system and capable of entering deep reservoirs of oil layers.

[0008] Another object of the present invention is to provide a method for using the above-mentioned oilfield deep composite gel profile control and water plugging agent.

[0009] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme:

[0010] A method for preparing a composite gel profile control and water plugging agent for deep oil fields, comprising the following steps:

[0011] Step 1: adding a polymer to a 3%-10% water glass aqueous solution under stirring, stirring evenly, to obtain component A; the polymer is one of the following: polyacrylamide, partially hydrolyzed polyacrylamide with a hydrolysis degree of 30%-40%, polyvinyl alcohol, carboxymethyl cellulose, xanthan gum; the added mass of the polymer is 0.1%-1% of the mass of the water glass aqueous solution;

[0012] Step 2: In another reaction container, acetic anhydride and ethyl acetate are mixed in a volume ratio of 1:1-3 to obtain a mixed solution;

[0013] Step 3: In a third reaction container, add water 2-5 times the volume of the mixed solution of acetic anhydride and ethyl acetate, and then add an emulsifier with a mass of 0.5%-1.5% of the mass of water, and stir evenly;

[0014] Step 4: adding the mixed solution of acetic anhydride and ethyl acetate prepared in step 2 into the third reaction container, stirring to form a stable emulsion, and obtaining component B, wherein the volume ratio of the mixed solution of acetic anhydride and ethyl acetate to the added water is 1:2-5;

[0015] Step 5: The component A and the component B are separately packaged at a volume ratio of 10:1-3, and the component A and the component B are combined at a volume ratio of 10:1-3 to obtain the deep composite gel profile control and water plugging agent.

[0016] In the present invention, in step 10, water glass is dissolved in water to obtain a water glass aqueous solution, and in step 1, component A is obtained by mixing an organic polymer with the water glass aqueous solution.

[0017] The present invention also uses acetic anhydride as an acidified precursor, dissolves it in ethyl acetate, and adds an emulsifier to prepare a component B water-in-oil emulsion.

[0018] When component A is mixed with component B, on the one hand, acetic anhydride is dissolved in ethyl acetate and emulsified, and the polymer dissolved in component A after mixing forms a mucus film on the interface to stabilize, preventing a large amount of acetic anhydride from directly dissolving in water and hydrolyzing to produce acetic acid; on the other hand, after the emulsion is slowly demulsified, the dissolved acetic anhydride reacts slowly with water to produce acetic acid, and reacts with water glass / sodium silicate in component A to produce silica gel. The slow release of acetic anhydride and hydrolysis to produce acetic acid extend the generation time of silica gel by more than 12 hours, greatly delaying the gelation time, allowing enough time for the gel to enter the deep reservoir of the oil well, achieving the effect of deep profile control and water plugging.

[0019] At the same time, the polymer in component A can modify the silica gel, thereby enhancing the toughness of the silica gel and making the silica gel less prone to rupture when used as a profile control and water plugging agent.

[0020] Furthermore, before step 1, the method further includes step 10: dissolving water glass in water to form a water glass aqueous solution with a concentration of 3%-10%.

[0021] Furthermore, the purity of the water glass in the water glass aqueous solution in step 1 is above industrial grade, and the purity modulus is ≤2, and the water used to prepare the water glass aqueous solution is one of river water, well water, lake water, or tap water with a total concentration of calcium and magnesium ions ≤30 mg / L.

[0022] Furthermore, the water added in step 3 is river water, well water, lake water, or tap water with a total calcium and magnesium ion concentration of ≤30 mg / L, which has low cost.

[0023] Furthermore, the emulsifier added in step 3 is one of the following: OP-10, OP-20, Span-60, or Span-80.

[0024] Furthermore, in step 4, the mixed solution of acetic anhydride and ethyl acetate prepared in step 2 is added to the third reaction container, and stirred at a stirring speed greater than 100 rpm to form a stable emulsion.

[0025] The present invention also discloses a method for using the deep composite gel profile control and water plugging agent.

[0026] When in use, mix component A and component B in a volume ratio of 10:1-3 under stirring, pump them into the target layer, and then pump them into the target layer for 20-50m 3 The water displaces the components A and B deep into the target formation, and the well is shut down for 5-15 days to solidify. The profile control and water plugging agent plugs the high permeability formation or cracks. Since the mixture formed by the mixing of components A and B is injected into the oil well, most of it is in the wellbore. By pumping water again, components A and B are pushed into the gaps of the oil layer (formation), preventing components A and B from being retained in the wellbore to form gel blockage.

[0027] The invention has the following beneficial effects: acetic anhydride is used as an acidification precursor, dissolved in ethyl acetate, and prepared into component B of an oil-in-water emulsion; when component A is mixed with component B, on the one hand, acetic anhydride is dissolved in ethyl acetate and emulsified, and the polymer dissolved in component A after mixing forms a mucus film on the interface to stabilize, thereby preventing a large amount of acetic anhydride from directly dissolving in water and hydrolyzing to produce acetic acid; on the other hand, after the emulsion is slowly demulsified, the acetic anhydride dissolved reacts slowly with water to produce acetic acid after meeting water, and reacts with water glass / sodium silicate in component A to produce silica gel. The slow release and hydrolysis of acetic anhydride to produce acetic acid prolongs the generation time of silica gel by more than 12 hours, greatly delaying the gelation time, and allowing a sufficiently long time for the gel to enter the deep reservoir of the oil well, thereby achieving the effect of deep profile control and water plugging. DETAILED DESCRIPTION

[0028] The present invention is further described below in conjunction with examples. These examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. The experimental methods in the following examples that do not specify specific conditions are usually carried out according to conventional conditions in the art or according to the conditions recommended by the manufacturer; the raw materials, reagents, etc. used, unless otherwise specified, are all raw materials and reagents that can be obtained from commercial channels such as conventional markets, and the chemical reagents used in the present invention are all products with purity above industrial grade. Any non-substantial changes and substitutions made by those skilled in the art on the basis of the present invention belong to the scope of protection claimed by the present invention.

[0029] Example 1

[0030] A method for preparing a composite gel profile control and water plugging agent for deep oil fields comprises the following steps:

[0031] Step 10: adding water to water glass in a reaction container at room temperature to prepare a 10% water glass aqueous solution, wherein the water glass is industrial grade water glass with a purity modulus of 1, and the water is river water with a total calcium and magnesium ion concentration of 10 mg / L;

[0032] Step 1: Add polyacrylamide with a molecular weight of 8 million to the reaction container under stirring, and stir evenly, as component A, the mass of the added polyacrylamide is 0.4% of the mass of the water glass aqueous solution;

[0033] Step 2: In another reaction container, acetic anhydride and ethyl acetate are mixed in a volume ratio of 1:1 to obtain a mixed solution;

[0034] Step 3: In a third reaction container, add water 3 times the volume of the mixed solution of acetic anhydride and ethyl acetate, and then add an emulsifier with a mass of 1.5% of the mass of water, and stir evenly; the water is river water with a total calcium and magnesium ion concentration of 10 mg / L, and the emulsifier is OP-10 of industrial grade purity;

[0035] Step 4: adding the mixed solution of acetic anhydride and ethyl acetate prepared in step 2 into the third reaction container, stirring at a stirring speed of 500 rpm to form a stable emulsion to obtain component B, wherein the volume ratio of the mixed solution of acetic anhydride and ethyl acetate to the added water is 1:2;

[0036] Step 5: The component A and the component B are separately packaged at a volume ratio of 10:1 to obtain the deep composite gel profile control and water plugging agent.

[0037] The method for using the deep composite gel profile control and water plugging agent prepared in this embodiment includes:

[0038] When used, mix the packaged component A and component B (the volume ratio of component A to component B is 10:1) under stirring, pump them into the target layer, and then pump them into 50m 3 The water is displaced deep into the target formation, and the well is shut down for 5 days to solidify, which can seal the high-permeability formation or fracture. The water is qualified water for oilfield production.

[0039] According to the test, the generation of silica gel in this embodiment is extended by 20 hours (calculated based on the climbing time during stirring), which greatly delays the gelation time and allows the gel to enter the deep reservoir to achieve the effect of deep profile control and water plugging.

[0040] Example 2

[0041] A method for preparing a composite gel profile control and water plugging agent for deep oil fields comprises the following steps:

[0042] Step 10: adding water to water glass in a reaction container at room temperature to prepare an 8% water glass aqueous solution, wherein the water glass is industrial grade water glass with a purity modulus of 2, and the water is well water with a total calcium and magnesium ion concentration of 12 mg / L;

[0043] Step 1: Add partially hydrolyzed polyacrylamide with a hydrolysis degree of 30% and a molecular weight of 12 million to the reaction container under stirring, and stir evenly as component A. The added mass of the partially hydrolyzed polyacrylamide is 0.4% of the mass of the water glass aqueous solution;

[0044] Step 2: In another reaction container, acetic anhydride and ethyl acetate are mixed in a volume ratio of 1:2 to obtain a mixed solution;

[0045] Step 3: In a third reaction container, add water twice the volume of the mixed solution of acetic anhydride and ethyl acetate, and then add an emulsifier with a mass of 1.1% of the mass of water, and stir evenly; the water is lake water with a total calcium and magnesium ion concentration of 15 mg / L, and the emulsifier is chemically pure OP-20;

[0046] Step 4: adding the mixed solution of acetic anhydride and ethyl acetate prepared in step 2 into the third reaction container, stirring at a stirring speed of 150 rpm to form a stable emulsion to obtain component B, wherein the volume ratio of the mixed solution of acetic anhydride and ethyl acetate to the added water is 1:3;

[0047] Step 5: The component A and the component B are separately packaged in a volume ratio of 10:2 to obtain the deep composite gel profile control and water plugging agent.

[0048] The method for using the deep composite gel profile control and water plugging agent prepared in this embodiment includes:

[0049] When used, the packaged components A and B (the volume ratio of component A to component B is 10:2) are mixed under stirring, pumped into the target layer, and then pumped into 40m 3 The water is displaced deep into the target formation, and the well is shut down for 8 days to solidify, which can seal the high-permeability formation or fracture. The water is qualified water for oilfield production.

[0050] According to the test, the generation of silica gel in this embodiment is extended by 36 hours, which greatly delays the gelation time and allows the gel to enter the deep reservoir to achieve the effect of deep profile control and water plugging.

[0051] Example 3

[0052] A method for preparing a composite gel profile control and water plugging agent for deep oil fields comprises the following steps:

[0053] Step 10: adding water to water glass in a reaction container at room temperature to prepare a 6% water glass aqueous solution, wherein the water glass is industrial grade water glass with a purity modulus of 1.5, and the water is tap water with a total calcium and magnesium ion concentration of 18 mg / L;

[0054] Step 1: Add partially hydrolyzed polyacrylamide with a hydrolysis degree of 40% and a molecular weight of 15 million to the reaction container under stirring, and stir evenly as component A. The added mass of the partially hydrolyzed polyacrylamide is 0.3% of the mass of the water glass aqueous solution;

[0055] Step 2: In another reaction container, acetic anhydride and ethyl acetate are mixed in a volume ratio of 1:3 to obtain a mixed solution;

[0056] Step 3: In a third reaction container, add water 4 times the volume of the mixed solution of acetic anhydride and ethyl acetate, and then add an emulsifier with a mass of 0.5% of the mass of water, and stir evenly; the water is tap water with a total calcium and magnesium ion concentration of 20 mg / L, and the emulsifier is industrial grade Span-60;

[0057] Step 4: adding the mixed solution of acetic anhydride and ethyl acetate prepared in step 2 into the third reaction container, stirring at a stirring speed of 200 rpm to form a stable emulsion to obtain component B, wherein the volume ratio of the mixed solution of acetic anhydride and ethyl acetate to the added water is 1:2.5;

[0058] Step 5: The component A and the component B are separately packaged in a volume ratio of 10:3 to obtain the deep composite gel profile control and water plugging agent.

[0059] The method for using the deep composite gel profile control and water plugging agent prepared in this embodiment includes:

[0060] When used, mix the packaged components A and B (the volume ratio of component A to component B is 10:3) under stirring, pump them into the target layer, and then pump them into the target layer for 30m 3 The water is displaced deep into the target formation, and the well is shut down for 10 days to solidify, which can seal the high-permeability formation or cracks. The water is qualified water for oilfield production.

[0061] According to the test, the generation of silica gel in this embodiment is extended by 26 hours, which greatly delays the gelation time and allows the gel to enter the deep reservoir to achieve the effect of deep profile control and water plugging.

[0062] Example 4

[0063] A method for preparing a composite gel profile control and water plugging agent for deep oil fields comprises the following steps:

[0064] Step 10: adding water to water glass in a reaction container at room temperature to prepare a 5% water glass aqueous solution, wherein the water glass is industrial grade water glass with a purity modulus of 2, and the water is lake water with a total calcium and magnesium ion concentration of 21 mg / L;

[0065] Step 1: Continue to add xanthan gum to the reaction container under stirring, and stir evenly, as component A, the mass of the xanthan gum added is 0.1% of the mass of the water glass aqueous solution;

[0066] Step 2: In another reaction container, acetic anhydride and ethyl acetate are mixed in a volume ratio of 1:1 to obtain a mixed solution;

[0067] Step 3: In a third reaction container, add water 5 times the volume of the mixed solution of acetic anhydride and ethyl acetate, and then add an emulsifier with a mass of 0.6% of the mass of water, and stir evenly; the water is lake water with a total calcium and magnesium ion concentration of 21 mg / L, and the emulsifier is chemically pure Span-80;

[0068] Step 4: adding the mixed solution of acetic anhydride and ethyl acetate prepared in step 2 into the third reaction container, stirring at a stirring speed of 300 rpm to form a stable emulsion to obtain component B, wherein the volume ratio of the mixed solution of acetic anhydride and ethyl acetate to the added water is 1:4;

[0069] Step 5: The component A and the component B are separately packaged at a volume ratio of 10:2.5 to obtain the deep composite gel profile control and water plugging agent.

[0070] The method for using the deep composite gel profile control and water plugging agent prepared in this embodiment includes:

[0071] When used, mix the packaged components A and B (the volume ratio of component A to component B is 10:2.5) under stirring, pump them into the target layer, and then pump them into 20m 3The water is displaced deep into the target formation, and the well is shut down for 15 days for solidification, which can seal the high-permeability formation or fracture. The water is qualified water for oilfield production.

[0072] According to the test, the generation of silica gel in this embodiment is extended by 30 hours, which greatly delays the gelation time and allows the gel to enter the deep reservoir to achieve the effect of deep profile control and water plugging.

[0073] Example 5

[0074] A method for preparing a composite gel profile control and water plugging agent for deep oil fields comprises the following steps:

[0075] Step 10: adding water to water glass in a reaction container at room temperature to prepare a 3% water glass aqueous solution, wherein the water glass is industrial grade water glass with a purity modulus of 1.2, and the water is river water with a total calcium and magnesium ion concentration of 25 mg / L;

[0076] Step 1: Continue to add sodium carboxymethyl cellulose into the reaction container under stirring, and stir evenly, as component A, the added mass of the sodium carboxymethyl cellulose is 1% of the mass of the water glass aqueous solution;

[0077] Step 2: In another reaction container, acetic anhydride and ethyl acetate are mixed in a volume ratio of 1:1.5 to obtain a mixed solution;

[0078] Step 3: In a third reaction container, add water 3 times the volume of the mixed solution of acetic anhydride and ethyl acetate, and then add an emulsifier with a mass of 0.8% of the mass of water, and stir evenly; the water is tap water with a total calcium and magnesium ion concentration of 10 mg / L, and the emulsifier is analytically pure Span-60;

[0079] Step 4: adding the mixed solution of acetic anhydride and ethyl acetate prepared in step 2 into the third reaction container, stirring at a stirring speed of 300 rpm to form a stable emulsion to obtain component B, wherein the volume ratio of the mixed solution of acetic anhydride and ethyl acetate to the added water is 1:5;

[0080] Step 5: The component A and the component B are separately packaged in a volume ratio of 10:1.5 to obtain the deep composite gel profile control and water plugging agent.

[0081] The method for using the deep composite gel profile control and water plugging agent prepared in this embodiment includes:

[0082] When used, mix the packaged components A and B (the volume ratio of component A to component B is 10:1.5) under stirring, pump them into the target layer, and then pump them into 40m 3 The water is displaced deep into the target formation, and the well is shut down for 10 days to solidify, which can seal the high-permeability formation or cracks. The water is qualified water for oilfield production.

[0083] According to the test, the generation of silica gel in this embodiment is extended by 20 hours, which greatly delays the gelation time and allows the gel to enter the deep reservoir to achieve the effect of deep profile control and water plugging.

[0084] Example 6

[0085] A method for preparing a composite gel profile control and water plugging agent for deep oil fields comprises the following steps:

[0086] Step 10: adding water to water glass in a reaction container at room temperature to prepare an 8% water glass aqueous solution, wherein the water glass is industrial grade water glass with a purity modulus of 2, and the water is river water with a total calcium and magnesium ion concentration of 26 mg / L;

[0087] Step 1: Add polyvinyl alcohol 1788 to the reaction container under stirring and stir evenly, as component A, the mass of the polyvinyl alcohol 1788 added is 0.5% of the mass of the water glass aqueous solution;

[0088] Step 2: In another reaction container, acetic anhydride and ethyl acetate are mixed in a volume ratio of 1:2 to obtain a mixed solution;

[0089] Step 3: In a third reaction container, add water twice the volume of the mixed solution of acetic anhydride and ethyl acetate, and then add an emulsifier with a mass of 1.2% of the mass of water, and stir evenly; the water is well water with a total calcium and magnesium ion concentration of 15 mg / L, and the emulsifier is industrial grade Span-80;

[0090] Step 4: adding the mixed solution of acetic anhydride and ethyl acetate prepared in step 2 into the third reaction container, stirring at a stirring speed of 200 rpm to form a stable emulsion to obtain component B, wherein the volume ratio of the mixed solution of acetic anhydride and ethyl acetate to the added water is 1:3;

[0091] Step 5: The component A and the component B are separately packaged in a volume ratio of 10:2 to obtain the deep composite gel profile control and water plugging agent.

[0092] The method for using the deep composite gel profile control and water plugging agent prepared in this embodiment includes:

[0093] When used, mix the packaged components A and B (the volume ratio of component A to component B is 10:2) under stirring, pump them into the target layer, and then pump them into 50m 3 The water is displaced deep into the target formation, and the well is shut down for 12 days to solidify, which can seal the high-permeability formation or cracks. The water is qualified water for oilfield production.

[0094] According to the test, the generation of silica gel in this embodiment is extended by 19 hours, which greatly delays the gelation time and allows the gel to enter the deep reservoir to achieve the effect of deep profile control and water plugging.

[0095] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A method for preparing a composite gel profile control and water plugging agent for deep oil fields (Explanation: the method of use is written separately as claim 7, so it is not reflected in claim 1), characterized in that: It includes the following steps: Step 1: adding a polymer to a 3%-10% aqueous solution of water glass under stirring, stirring evenly, to obtain component A; the polymer is one of the following: polyacrylamide, partially hydrolyzed polyacrylamide with a hydrolysis degree of 30%-40%, polyvinyl alcohol, carboxymethyl cellulose, xanthan gum; the mass of the polymer added is 0.1%-1% of the mass of the aqueous solution of water glass; Step 2: In another reaction container, acetic anhydride and ethyl acetate are mixed in a volume ratio of 1:1-3 to obtain a mixed solution; Step 3: In a third reaction container, add water 2-5 times the volume of the mixed solution of acetic anhydride and ethyl acetate, and then add an emulsifier with a mass of 0.5%-1.5% of the mass of water, and stir evenly; Step 4: adding the mixed solution of acetic anhydride and ethyl acetate prepared in step 2 into the third reaction container, stirring to form a stable emulsion, and obtaining component B, wherein the volume ratio of the mixed solution of acetic anhydride and ethyl acetate to the added water is 1:2-5; Step 5: The component A and the component B are separately packaged at a volume ratio of 10:1-3, and the component A and the component B packaged at the volume ratio are combined to obtain the deep composite gel profile control and water plugging agent.

2. The method for preparing the composite gel profile control and water plugging agent for deep oil fields according to claim 1, characterized in that: The step 10 is also included before the step 1: dissolving water glass in water to form a water glass aqueous solution with a concentration of 3%-10%.

3. The method for preparing the composite gel profile control and water plugging agent for deep oil fields according to claim 1 or 2, characterized in that: The purity of the water glass in the water glass aqueous solution in step 1 or step 10 is above industrial grade, and the purity modulus is ≤2. The water used to prepare the water glass aqueous solution is one of river water, well water, lake water, or tap water with a total concentration of calcium and magnesium ions ≤30 mg / L.

4. The method for preparing the composite gel profile control and water plugging agent for deep oil fields according to claim 1, characterized in that: The water added in step 3 is river water, well water, lake water, or tap water with a total calcium and magnesium ion concentration of ≤30 mg / L.

5. The method for preparing the composite gel profile control and water plugging agent for deep oil fields according to claim 1, characterized in that: The emulsifier added in step 3 is one of the following: OP-10, OP-20, Span-60, or Span-80.

6. The method for preparing the composite gel profile control and water plugging agent for deep oil fields according to claim 1, characterized in that: In the step 4, the mixed solution of acetic anhydride and ethyl acetate prepared in the step 2 is added to the third reaction container, and stirred at a stirring speed of more than 100 rpm to form a stable emulsion.

7. A method for using the composite gel profile control and water plugging agent for deep oil fields as claimed in any one of claims 1 to 6, characterized in that: When in use, mix component A and component B in a volume ratio of 10:1-3 under stirring, pump them into the target layer, and then pump them into the target layer for 20-50m 3 The water displaces the component A and the component B deep into the target formation, and the well is shut down for 5-15 days for solidification. The profile control and water plugging agent plugs the high permeability formation or fracture.