CN114350337B - Intelligent lamellar nano foam stabilizer, preparation method thereof and application thereof in foam flooding - Google Patents

Abstract

Translated fromChinese

本发明公开了智能层状纳米稳泡剂及其制备方法和在泡沫驱油中的应用，配方包括：MXene、无机物、碱源和交联剂，制备方法包括步骤一，原料称取；步骤二，制备混合液A；步骤三，制备混合液B；步骤四，获取成品；本发明通过在MXene的表面和层间进行原位交联，沉积磁性纳米颗粒并改善其亲疏水性能，得到智能层状纳米稳泡剂，该智能层状纳米稳泡剂具有提高泡沫的寿命和泡沫综合性能的特性，从而延长泡沫在地层孔喉中的作用时间，实现对地层大孔道的暂堵，提高原油采收率；且当泡沫遇油破灭以后，可通过外加磁场能够迅速实现智能层状纳米稳泡剂的回收和再利用，对泡沫驱油效果的提高和进一步推广应用具有重要意义。

The invention discloses an intelligent layered nano-foam stabilizer and its preparation method and application in foam flooding. The formula includes: MXene, inorganic substances, alkali source and cross-linking agent. The preparation method includes step 1, weighing raw materials; 2. Prepare mixed solution A; step 3, prepare mixed solution B; step 4, obtain the finished product; the present invention deposits magnetic nanoparticles and improves their hydrophilic and hydrophobic properties by in-situ crosslinking on the surface and interlayer of MXene to obtain smart Layered nano-foam stabilizer, the intelligent layered nano-foam stabilizer has the characteristics of improving the life of the foam and the comprehensive performance of the foam, so as to prolong the action time of the foam in the pore throat of the formation, realize the temporary blocking of the large pores of the formation, and improve the crude oil Moreover, when the foam meets oil and bursts, the intelligent layered nano-foam stabilizer can be recovered and reused quickly by applying an external magnetic field, which is of great significance to the improvement of the foam flooding effect and its further application.

Description

Translated fromChinese

智能层状纳米稳泡剂及其制备方法和在泡沫驱油中的应用Intelligent layered nano foam stabilizer and preparation method thereof and application in foam flooding

技术领域Technical Field

本发明涉及三次采油化学品技术领域，具体为智能层状纳米稳泡剂及其制备方法和在泡沫驱油中的应用。The invention relates to the technical field of tertiary oil recovery chemicals, in particular to an intelligent layered nano foam stabilizer and a preparation method thereof and application thereof in foam flooding.

背景技术Background Art

随着世界各国对油气资源需求的急剧增加，高温地热环境下的深层油气藏资源逐渐成为探寻开采的重点；泡沫因具有粒径小、比表面积大和流动性好等优点在油气资源的三次开采中展现出了巨大的应用价值；泡沫通过低摩阻、低密度和返排能力强等优势来降低岩石中残余油的饱和度，从而提高原油采收率；但在实际泡沫驱油过程中，泡沫的稳定性较差，在复杂的油藏环境中存在容易破灭的缺陷，无法扩大波及体积，严重制约了泡沫驱油效率；With the rapid increase in the demand for oil and gas resources in countries around the world, deep oil and gas reservoirs in high-temperature geothermal environments have gradually become the focus of exploration and exploitation; foam has shown great application value in the tertiary exploitation of oil and gas resources due to its advantages such as small particle size, large specific surface area and good fluidity; foam reduces the saturation of residual oil in rocks through its advantages such as low friction, low density and strong backflow capacity, thereby improving crude oil recovery; but in the actual foam flooding process, the stability of the foam is poor, and it has the defect of being easily broken in a complex reservoir environment, and it is impossible to expand the swept volume, which seriously restricts the efficiency of foam flooding;

传统的泡沫驱油所使用的起泡体系主要包括单组分小分子表面活性剂、单组分聚合物表面活性剂及多组分表面活性剂复配体系，尽管这些起泡体系的起泡能力强，但是所形成泡沫的寿命较短；纳米颗粒作为新型的稳泡剂与小分子表面活性剂进行复配构建纳米颗粒/表面活性剂复合起泡体系，在泡沫形成的过程中展现出了优越的稳泡能力；然而，当前所采用的纳米颗粒稳泡剂均为球形实心结构的二氧化硅、不规则实心结构的氢氧化铝或尺寸较大的不规则实心结构的膨润土，其表面活性位点有限，需要复杂的改性和修饰，驱油效果差；此外，这些纳米颗粒稳泡剂在驱油以后存在回收过程繁琐，难以在油田上进行大规模推广应用；The foaming systems used in traditional foam flooding mainly include single-component small molecule surfactants, single-component polymer surfactants and multi-component surfactant compound systems. Although these foaming systems have strong foaming ability, the life of the foam formed is short. Nanoparticles are used as new foam stabilizers to be compounded with small molecule surfactants to construct nanoparticle/surfactant composite foaming systems, which show excellent foam stabilization ability in the process of foam formation. However, the nanoparticle foam stabilizers currently used are all spherical solid silica, irregular solid aluminum hydroxide or large-sized irregular solid bentonite, which have limited surface active sites and require complex modification and modification, resulting in poor oil recovery effect. In addition, these nanoparticle foam stabilizers have a cumbersome recovery process after oil recovery, making it difficult to promote and apply them on a large scale in oil fields.

中国专利文件201711382411.1公开了一种磺化渣油改性膨润土稳泡剂及其制备方法，该稳泡剂是将膨润土和渣油加入到有机溶剂中进行改性，然后除去有机溶剂，进行磺化处理所得；该制备方法虽然简单，但合成过程涉及有毒的有机溶剂，难以大规模推广应用；此外，该稳泡剂所用的膨润土的粒径为38μm-75μm，容易堵塞地层孔喉且无法回收；Chinese patent document 201711382411.1 discloses a sulfonated residual oil modified bentonite foam stabilizer and a preparation method thereof. The foam stabilizer is obtained by adding bentonite and residual oil to an organic solvent for modification, then removing the organic solvent and performing a sulfonation treatment. Although the preparation method is simple, the synthesis process involves toxic organic solvents, which makes it difficult to promote and apply on a large scale. In addition, the particle size of the bentonite used in the foam stabilizer is 38μm-75μm, which is easy to block the pore throat of the formation and cannot be recovered.

中国专利文件201810761015.8公开了一种智能纳米泡沫驱油剂的制备方法，该智能纳米泡沫驱油剂是以实心的纳米四氧化三铁为核，通过功能高分子在核表面进行聚合包覆所得；该智能纳米泡沫驱油剂的原油总提高采收率虽然可以达到18.2％，且可以通过外加磁场进行回收再利用，但是聚合物包覆的纳米四氧化三铁容易团聚，堵塞地层孔喉，存在地层伤害和回收率低的难题；Chinese patent document 201810761015.8 discloses a method for preparing an intelligent nano-foam oil-displacing agent, which is obtained by polymerizing and coating the surface of a solid nano-iron tetroxide as a core through functional polymers; although the total crude oil recovery rate of the intelligent nano-foam oil-displacing agent can reach 18.2%, and it can be recycled and reused through an external magnetic field, the polymer-coated nano-iron tetroxide is easy to agglomerate and block the pore throat of the formation, resulting in formation damage and low recovery rate.

中国专利文件202010174556.8公开了一种高分子改性膨润土稳泡剂及其制备方法，该稳泡剂是通过首先通过表面活性剂对膨润土进行插层，扩大膨润土的层间距，然后加入功能单体进行共聚制得；该稳泡剂虽然解决了膨润土可以在泡沫流体中的沉淀问题，但是合成步骤较为繁琐，且所得到的泡沫半衰期最高仅约为5min，泡沫在高温油藏环境下容易破灭，难以实现原油采收率的提高；Chinese patent document 202010174556.8 discloses a polymer modified bentonite foam stabilizer and a preparation method thereof, wherein the foam stabilizer is prepared by first intercalating bentonite with a surfactant to expand the interlayer spacing of the bentonite, and then adding a functional monomer for copolymerization; although the foam stabilizer solves the problem that bentonite can precipitate in the foam fluid, the synthesis steps are relatively cumbersome, and the half-life of the obtained foam is only about 5 minutes at most, and the foam is easy to burst in a high-temperature reservoir environment, making it difficult to achieve an increase in crude oil recovery;

MXene是一种类似手风琴形态的新型二维材料，其具有独特的层状结构和超大的比表面积，层与层之间有丰富的活性位点；然而MXene表面含有丰富的羟基基团，是一种亲水性较好的二维材料，无法起到较好的稳泡效果；对MXene进行改性已经被广泛应用于柔性促动器和电磁屏蔽等领域，而对MXene进行负载智能纳米颗粒和表面疏水改性后作为三次采油的稳泡剂却未见报道。MXene is a new type of two-dimensional material with an accordion-like shape. It has a unique layered structure and an ultra-large specific surface area, with abundant active sites between layers. However, the surface of MXene contains abundant hydroxyl groups and is a two-dimensional material with good hydrophilicity, which cannot achieve a good foam stabilizing effect. Modification of MXene has been widely used in fields such as flexible actuators and electromagnetic shielding, but there have been no reports on using MXene loaded with smart nanoparticles and surface hydrophobic modification as a foam stabilizer for tertiary oil recovery.

发明内容Summary of the invention

本发明的目的在于提供智能层状纳米稳泡剂及其制备方法和在泡沫驱油中的应用，以解决上述背景技术中提出的问题。The purpose of the present invention is to provide an intelligent layered nano foam stabilizer and a preparation method thereof and application in foam flooding to solve the problems raised in the above background technology.

为实现上述目的，本发明提供如下技术方案：智能层状纳米稳泡剂，配方包括：MXene、无机物、碱源和交联剂，各组分的重量份数比分别是：1-10份的MXene、0.1-1份的无机物、0.01-0.1份的碱源和0.01-0.1份的交联剂。To achieve the above-mentioned purpose, the present invention provides the following technical solution: an intelligent layered nano foam stabilizer, the formula of which includes: MXene, inorganic matter, alkali source and cross-linking agent, and the weight proportions of each component are: 1-10 parts of MXene, 0.1-1 parts of inorganic matter, 0.01-0.1 parts of alkali source and 0.01-0.1 parts of cross-linking agent.

优选的，所述MXene为Ti₃C₂ MXene、Ti₂C MXene、Nb₂C MXene、V₂C MXene、TiVCMXene、Ti₃CN MXene、Ti₂N Mxene、V₂N MXene、Nb₄C₃ MXene、V₄C₃ MXene、TiNbC MXene、Mo₂Ti₂C₃ Mxene、Mo₂TiC₂ MXene、Mo₂C MXene、Cr₂C MXene、Ta₂C MXene、Ta₄C₃ MXene、W_1.33CMXene、Mo_1.33C MXene、VCrC MXene中的一种或几种。Preferably, the MXene is Ti₃ C₂ MXene, Ti₂ C MXene, Nb₂ C MXene, V₂ C MXene, TiVCMXene, Ti₃ CN MXene, Ti₂ N Mxene, V₂ N MXene, Nb₄ C₃ MXene , V₄ C₃ MXene, TiNbC MXene, Mo₂ Ti₂ C₃ Mxene, Mo₂ TiC₂ MXene, Mo₂ C MXene, Cr₂ C MXene, Ta₂ C MXene, Ta₄ C₃ MXene, W_1.33 CMXene, Mo One or more of_1.33 C MXene and VCrC MXene.

优选的，所述无机物为NiCl₂、FeCl₃、CoCl₂、Ni(NO₃)₂、Fe(NO₃)₃、Co(NO₃)₂中的一种或两种。Preferably, the inorganic substance is one or two of NiCl₂ , FeCl₃ , CoCl₂ , Ni(NO₃ )₂ , Fe(NO₃ )₃ , and Co(NO₃ )₂ .

优选的，所述碱源为醋酸钠或柠檬酸钠。Preferably, the alkaline source is sodium acetate or sodium citrate.

优选的，所述交联剂的结构为

(n＝5-17)。Preferably, the structure of the cross-linking agent is

(n=5-17).

智能层状纳米稳泡剂的制备方法，包括步骤一，原料称取；步骤二，制备混合液A；步骤三，制备混合液B；步骤四，获取成品；The preparation method of the intelligent layered nano foam stabilizer comprises the following steps: first, weighing the raw materials; second, preparing a mixed solution A; third, preparing a mixed solution B; and fourth, obtaining a finished product.

其中上述步骤一中，按照智能层状纳米稳泡剂的配方比例，分别称取MXene、无机物、碱源和交联剂备用；In the above step 1, according to the formula ratio of the smart layered nano foam stabilizer, MXene, inorganic matter, alkali source and cross-linking agent are weighed respectively for use;

其中上述步骤二中，将步骤一中所称取的无机物加入到适量的去离子水中，超声溶解均匀，然后加入步骤一中所称取的碱源和交联剂，超声溶解均匀，得到混合液A；In the above step 2, the inorganic substance weighed in step 1 is added to an appropriate amount of deionized water, and ultrasonically dissolved evenly, and then the alkali source and cross-linking agent weighed in step 1 are added, and ultrasonically dissolved evenly to obtain a mixed solution A;

其中上述步骤三中，取步骤一中所称取的MXene，将其加入步骤二中所制备的混合液A中，在磁力搅拌下搅拌2-4h，将混合完全的溶液转移到高温高压反应釜中，在120℃下密闭反应8-12h，得到混合液B；In the above step 3, the MXene weighed in step 1 is added to the mixed solution A prepared in step 2, and stirred for 2-4 hours under magnetic stirring. The completely mixed solution is transferred to a high-temperature and high-pressure reactor, and reacted in a sealed state at 120° C. for 8-12 hours to obtain a mixed solution B.

其中上述步骤四中，将步骤三中得到的混合液B通过分离、洗涤后，加入到100mL的去离子水超声分散均匀，然后采用破碎仪破碎一段时间，最后通过分离、洗涤和干燥后，得到的智能层状纳米稳泡剂成品。In the above step 4, the mixed solution B obtained in step 3 is separated and washed, then added to 100 mL of deionized water for ultrasonic dispersion, and then crushed by a crusher for a period of time. Finally, the finished product of the intelligent layered nano foam stabilizer is obtained after separation, washing and drying.

优选的，所述步骤一中，去离子水的体积为100mL。Preferably, in step 1, the volume of deionized water is 100 mL.

优选的，所述步骤四中，破碎仪为外接循环冷却装置的非接触式超声波细胞破碎仪，循环冷却液的温度为-20℃，以700-900W的功率进行破碎1-2h。Preferably, in step 4, the disruptor is a non-contact ultrasonic cell disruptor with an external circulating cooling device, the temperature of the circulating coolant is -20°C, and the disruption is performed at a power of 700-900W for 1-2h.

智能层状纳米稳泡剂在泡沫驱油中的应用，所述智能层状纳米稳泡剂应用于泡沫驱油中，可以提高泡沫驱油体系的泡沫寿命，从而提高泡沫的综合性能，进而实现对地层大孔道的暂堵，提高原油采收率；此外，该智能层状纳米稳泡剂被吸附在气液界面上具有不可逆性，有效增加泡沫的表面弹性，阻碍液相在液膜中的流动，延缓液膜变薄，阻止泡沫的粗化和聚并，达到稳定泡沫的目的，从而扩大波及体积，提高泡沫驱油效率。The application of intelligent layered nano foam stabilizer in foam oil recovery can increase the foam life of the foam oil recovery system, thereby improving the comprehensive performance of the foam, and further realizing temporary plugging of large pores in the formation and improving crude oil recovery; in addition, the intelligent layered nano foam stabilizer is adsorbed on the gas-liquid interface with irreversibility, effectively increasing the surface elasticity of the foam, hindering the flow of the liquid phase in the liquid film, delaying the thinning of the liquid film, preventing the coarsening and aggregation of the foam, and achieving the purpose of stabilizing the foam, thereby expanding the swept volume and improving the foam oil recovery efficiency.

与现有技术相比，本发明的有益效果是：本发明通过在MXene的表面和层间进行原位交联，沉积磁性纳米颗粒并改善其亲疏水性能，得到智能层状纳米稳泡剂，该智能层状纳米稳泡剂具有提高泡沫的寿命和泡沫综合性能的特性，从而延长泡沫在地层孔喉中的作用时间，实现对地层大孔道的暂堵，提高原油采收率；且当泡沫遇油破灭以后，可通过外加磁场能够迅速实现智能层状纳米稳泡剂的回收和再利用，对泡沫驱油效果的提高和进一步推广应用具有重要意义。Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention obtains an intelligent layered nano foam stabilizer by in-situ cross-linking on the surface and between layers of MXene, depositing magnetic nanoparticles and improving their hydrophilic and hydrophobic properties. The intelligent layered nano foam stabilizer has the characteristics of improving the life of the foam and the comprehensive performance of the foam, thereby extending the action time of the foam in the pore throats of the formation, achieving temporary plugging of large pores in the formation, and improving crude oil recovery; and when the foam bursts when encountering oil, the intelligent layered nano foam stabilizer can be quickly recovered and reused through an external magnetic field, which is of great significance to improving the foam flooding effect and further promoting its application.

附图说明BRIEF DESCRIPTION OF THE DRAWINGS

图1为本发明的方法流程图；Fig. 1 is a flow chart of the method of the present invention;

具体实施方式DETAILED DESCRIPTION

下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

请参阅图1，本发明提供的一种技术方案：Please refer to Figure 1, a technical solution provided by the present invention:

实施例1：Embodiment 1:

智能层状纳米稳泡剂，配方包括：MXene、无机物、碱源和交联剂，各组分的重量份数比分别是：1份的MXene、0.1份的无机物、0.01份的碱源和0.01份的交联剂；MXene为Ti₃C₂MXene；无机物为NiCl₂；碱源为醋酸钠；交联剂的结构为

The intelligent layered nano foam stabilizer comprises: MXene, inorganic substance, alkali source and cross-linking agent, wherein the weight proportions of the components are: 1 part of MXene, 0.1 part of inorganic substance, 0.01 part of alkali source and 0.01 part of cross-linking agent; MXene is Ti₃ C₂ MXene; inorganic substance is NiCl₂ ; alkali source is sodium acetate; the structure of the cross-linking agent is

智能层状纳米稳泡剂的制备方法，包括步骤一，原料称取；步骤二，制备混合液A；步骤三，制备混合液B；步骤四，获取成品；The preparation method of the intelligent layered nano foam stabilizer comprises the following steps: first, weighing the raw materials; second, preparing a mixed solution A; third, preparing a mixed solution B; and fourth, obtaining a finished product.

其中上述步骤一中，按照智能层状纳米稳泡剂的配方比例，分别称取MXene、无机物、碱源和交联剂备用；In the above step 1, according to the formula ratio of the smart layered nano foam stabilizer, MXene, inorganic matter, alkali source and cross-linking agent are weighed respectively for use;

其中上述步骤二中，将步骤一中所称取的无机物加入到100mL的去离子水中，超声溶解均匀，然后加入步骤一中所称取的碱源和交联剂，超声溶解均匀，得到混合液A；In the above step 2, the inorganic substance weighed in step 1 is added to 100 mL of deionized water, and ultrasonically dissolved evenly, and then the alkali source and cross-linking agent weighed in step 1 are added, and ultrasonically dissolved evenly to obtain a mixed solution A;

其中上述步骤三中，取步骤一中所称取的Ti₃C₂ MXene，将其加入步骤二中所制备的混合液A中，在磁力搅拌下搅拌2h，将混合完全的溶液转移到高温高压反应釜中，在120℃下密闭反应8h，得到混合液B；In the above step 3, the Ti₃ C₂ MXene weighed in step 1 is added to the mixed solution A prepared in step 2, and stirred for 2 hours under magnetic stirring. The completely mixed solution is transferred to a high-temperature and high-pressure reactor, and reacted in a sealed state at 120° C. for 8 hours to obtain a mixed solution B;

其中上述步骤四中，将步骤三中得到的混合液B通过分离、洗涤后，加入到100mL的去离子水超声分散均匀，然后采用外接循环冷却装置的非接触式超声波细胞破碎仪，循环冷却液的温度为-20℃，以700W的功率进行破碎1h，最后通过分离、洗涤和干燥后，得到的智能层状纳米稳泡剂成品。In the above step 4, the mixed solution B obtained in step 3 is separated and washed, and then added to 100 mL of deionized water for ultrasonic dispersion. Then, a non-contact ultrasonic cell disruptor with an external circulating cooling device is used. The temperature of the circulating cooling liquid is -20°C, and the cell disruption is performed at a power of 700 W for 1 hour. Finally, the finished product of the intelligent layered nano foam stabilizer is obtained after separation, washing and drying.

智能层状纳米稳泡剂在泡沫驱油中的应用，智能层状纳米稳泡剂应用于泡沫驱油中，可以提高泡沫驱油体系的泡沫寿命，从而提高泡沫的综合性能，进而实现对地层大孔道的暂堵，提高原油采收率；此外，该智能层状纳米稳泡剂被吸附在气液界面上具有不可逆性，有效增加泡沫的表面弹性，阻碍液相在液膜中的流动，延缓液膜变薄，阻止泡沫的粗化和聚并，达到稳定泡沫的目的，从而扩大波及体积，提高泡沫驱油效率。The application of intelligent layered nano foam stabilizers in foam oil recovery can increase the foam life of the foam oil recovery system, thereby improving the comprehensive performance of the foam, and then achieving temporary plugging of large pores in the formation and improving crude oil recovery; in addition, the intelligent layered nano foam stabilizer is adsorbed on the gas-liquid interface with irreversibility, effectively increasing the surface elasticity of the foam, hindering the flow of the liquid phase in the liquid film, delaying the thinning of the liquid film, and preventing the coarsening and aggregation of the foam, thereby achieving the purpose of stabilizing the foam, thereby expanding the swept volume and improving the efficiency of foam oil recovery.

采用激光粒度仪和接触角测量仪表征智能层状纳米稳泡剂的平均粒径和表面润湿性能，其平均粒径为32nm，接触角为67.6°；采用罗氏泡沫仪(GBT13173-2008)和岩心驱替装置(Q/SY T6424-2014)，评价了浓度为0.1％的智能层状纳米稳泡剂与0.4％的起泡剂癸基葡萄糖苷磺酸钠组成的泡沫配方的发泡能力、泡沫稳定性以及驱油效率，测试结果见表1；采用外加磁场对泡沫驱油后的智能层状纳米稳泡剂进行回收富集，使用乙醇和醋酸混合溶液进行洗涤三次，经100℃干燥后重复进行驱油实验。The average particle size and surface wetting properties of the smart layered nano foam stabilizer were characterized by a laser particle size analyzer and a contact angle meter. The average particle size was 32 nm and the contact angle was 67.6°. The foaming ability, foam stability and oil displacement efficiency of the foam formula composed of 0.1% smart layered nano foam stabilizer and 0.4% foaming agent sodium decyl glucoside sulfonate were evaluated by a Roche foam analyzer (GBT13173-2008) and a core displacement device (Q/SY T6424-2014). The test results are shown in Table 1. The smart layered nano foam stabilizer after foam flooding was recovered and enriched by an external magnetic field, washed three times with a mixed solution of ethanol and acetic acid, and dried at 100°C before repeating the oil displacement experiment.

实施例2：Embodiment 2:

智能层状纳米稳泡剂，配方包括：MXene、无机物、碱源和交联剂，各组分的重量份数比分别是：8份的MXene、1份的无机物、0.05份的碱源和0.1份的交联剂；MXene为Mo₂Ti₂C₃MXene；无机物为NiCl₂；碱源为醋酸钠；交联剂的结构为

The intelligent layered nano foam stabilizer comprises: MXene, inorganic substance, alkali source and cross-linking agent, wherein the weight proportions of the components are: 8 parts of MXene, 1 part of inorganic substance, 0.05 parts of alkali source and 0.1 parts of cross-linking agent; MXene is Mo₂ Ti₂ C₃ MXene; inorganic substance is NiCl₂ ; alkali source is sodium acetate; the structure of the cross-linking agent is

智能层状纳米稳泡剂的制备方法，包括步骤一，原料称取；步骤二，制备混合液A；步骤三，制备混合液B；步骤四，获取成品；The preparation method of the intelligent layered nano foam stabilizer comprises the following steps: first, weighing the raw materials; second, preparing a mixed solution A; third, preparing a mixed solution B; and fourth, obtaining a finished product.

其中上述步骤一中，按照智能层状纳米稳泡剂的配方比例，分别称取MXene、无机物、碱源和交联剂备用；In the above step 1, according to the formula ratio of the smart layered nano foam stabilizer, MXene, inorganic matter, alkali source and cross-linking agent are weighed respectively for use;

其中上述步骤二中，将步骤一中所称取的无机物加入到100mL的去离子水中，超声溶解均匀，然后加入步骤一中所称取的碱源和交联剂，超声溶解均匀，得到混合液A；In the above step 2, the inorganic substance weighed in step 1 is added to 100 mL of deionized water, and ultrasonically dissolved evenly, and then the alkali source and cross-linking agent weighed in step 1 are added, and ultrasonically dissolved evenly to obtain a mixed solution A;

其中上述步骤三中，取步骤一中所称取的Mo₂Ti₂C₃ MXene，将其加入步骤二中所制备的混合液A中，在磁力搅拌下搅拌4h，将混合完全的溶液转移到高温高压反应釜中，在120℃下密闭反应12h，得到混合液B；In the above step 3, the Mo₂ Ti₂ C₃ MXene weighed in step 1 is added to the mixed solution A prepared in step 2, and stirred for 4 hours under magnetic stirring. The completely mixed solution is transferred to a high-temperature and high-pressure reactor, and reacted in a sealed state at 120° C. for 12 hours to obtain a mixed solution B;

其中上述步骤四中，将步骤三中得到的混合液B通过分离、洗涤后，加入到100mL的去离子水超声分散均匀，然后采用外接循环冷却装置的非接触式超声波细胞破碎仪，循环冷却液的温度为-20℃，以900W的功率进行破碎2h，最后通过分离、洗涤和干燥后，得到的智能层状纳米稳泡剂成品。In the above step 4, the mixed solution B obtained in step 3 is separated and washed, and then added to 100 mL of deionized water for ultrasonic dispersion. Then, a non-contact ultrasonic cell disruptor with an external circulating cooling device is used. The temperature of the circulating cooling liquid is -20°C, and the cell disruption is performed at a power of 900 W for 2 hours. Finally, after separation, washing and drying, a finished product of the intelligent layered nano foam stabilizer is obtained.

智能层状纳米稳泡剂在泡沫驱油中的应用，智能层状纳米稳泡剂应用于泡沫驱油中，可以提高泡沫驱油体系的泡沫寿命，从而提高泡沫的综合性能，进而实现对地层大孔道的暂堵，提高原油采收率；此外，该智能层状纳米稳泡剂被吸附在气液界面上具有不可逆性，有效增加泡沫的表面弹性，阻碍液相在液膜中的流动，延缓液膜变薄，阻止泡沫的粗化和聚并，达到稳定泡沫的目的，从而扩大波及体积，提高泡沫驱油效率。The application of intelligent layered nano foam stabilizers in foam oil recovery can increase the foam life of the foam oil recovery system, thereby improving the comprehensive performance of the foam, and then achieving temporary plugging of large pores in the formation and improving crude oil recovery; in addition, the intelligent layered nano foam stabilizer is adsorbed on the gas-liquid interface with irreversibility, effectively increasing the surface elasticity of the foam, hindering the flow of the liquid phase in the liquid film, delaying the thinning of the liquid film, and preventing the coarsening and aggregation of the foam, thereby achieving the purpose of stabilizing the foam, thereby expanding the swept volume and improving the efficiency of foam oil recovery.

采用激光粒度仪和接触角测量仪表征智能层状纳米稳泡剂的平均粒径和表面润湿性能，其平均粒径为41nm，接触角为65.2°；采用罗氏泡沫仪(GBT13173-2008)和岩心驱替装置(Q/SY T6424-2014)，评价了浓度为0.1％的智能层状纳米稳泡剂与0.4％的起泡剂十二烷基磺酸钠组成的泡沫配方的发泡能力、泡沫稳定性以及驱油效率，测试结果见表1；采用外加磁场对泡沫驱油后的智能层状纳米稳泡剂进行回收富集，使用乙醇和醋酸混合溶液进行洗涤三次，经100℃干燥后重复进行驱油实验。The average particle size and surface wetting properties of the smart layered nano foam stabilizer were characterized by a laser particle size analyzer and a contact angle meter. The average particle size was 41 nm and the contact angle was 65.2°. The foaming ability, foam stability and oil displacement efficiency of the foam formula composed of 0.1% smart layered nano foam stabilizer and 0.4% foaming agent sodium dodecyl sulfate were evaluated by a Roche foam analyzer (GBT13173-2008) and a core displacement device (Q/SY T6424-2014). The test results are shown in Table 1. The smart layered nano foam stabilizer after foam flooding was recovered and enriched by an external magnetic field, washed three times with a mixed solution of ethanol and acetic acid, and dried at 100°C before repeating the oil displacement experiment.

实施例3：Embodiment 3:

智能层状纳米稳泡剂，配方包括：MXene、无机物、碱源和交联剂，各组分的重量份数比分别是：5份的MXene、0.2份的无机物、0.04份的碱源和0.04份的交联剂；MXene为W_1.33CMXene；无机物为NiCl₂；碱源为醋酸钠；交联剂的结构为

The intelligent layered nano foam stabilizer comprises: MXene, inorganic substance, alkali source and cross-linking agent, wherein the weight proportions of the components are: 5 parts of MXene, 0.2 parts of inorganic substance, 0.04 parts of alkali source and 0.04 parts of cross-linking agent; MXene is W_1.33 CMXene; inorganic substance is NiCl₂ ; alkali source is sodium acetate; the structure of the cross-linking agent is

智能层状纳米稳泡剂的制备方法，包括步骤一，原料称取；步骤二，制备混合液A；步骤三，制备混合液B；步骤四，获取成品；The preparation method of the intelligent layered nano foam stabilizer comprises the following steps: first, weighing the raw materials; second, preparing a mixed solution A; third, preparing a mixed solution B; and fourth, obtaining a finished product.

其中上述步骤一中，按照智能层状纳米稳泡剂的配方比例，分别称取MXene、无机物、碱源和交联剂备用；In the above step 1, according to the formula ratio of the smart layered nano foam stabilizer, MXene, inorganic matter, alkali source and cross-linking agent are weighed respectively for use;

其中上述步骤二中，将步骤一中所称取的无机物加入到100mL的去离子水中，超声溶解均匀，然后加入步骤一中所称取的碱源和交联剂，超声溶解均匀，得到混合液A；In the above step 2, the inorganic substance weighed in step 1 is added to 100 mL of deionized water, and ultrasonically dissolved evenly, and then the alkali source and cross-linking agent weighed in step 1 are added, and ultrasonically dissolved evenly to obtain a mixed solution A;

其中上述步骤三中，取步骤一中所称取的W_1.33C MXene，将其加入步骤二中所制备的混合液A中，在磁力搅拌下搅拌2h，将混合完全的溶液转移到高温高压反应釜中，在120℃下密闭反应10h，得到混合液B；In the above step 3, the W_1.33 C MXene weighed in step 1 is added to the mixed solution A prepared in step 2, and stirred for 2 h under magnetic stirring. The completely mixed solution is transferred to a high-temperature and high-pressure reactor, and reacted in a sealed state at 120° C. for 10 h to obtain a mixed solution B;

其中上述步骤四中，将步骤三中得到的混合液B通过分离、洗涤后，加入到100mL的去离子水超声分散均匀，然后采用外接循环冷却装置的非接触式超声波细胞破碎仪，循环冷却液的温度为-20℃，以800W的功率进行破碎1h，最后通过分离、洗涤和干燥后，得到的智能层状纳米稳泡剂成品。In the above step 4, the mixed solution B obtained in step 3 is separated and washed, and then added to 100 mL of deionized water for ultrasonic dispersion. Then, a non-contact ultrasonic cell disruptor with an external circulating cooling device is used. The temperature of the circulating cooling liquid is -20°C, and the cell disruption is performed at a power of 800 W for 1 hour. Finally, after separation, washing and drying, a finished product of the intelligent layered nano foam stabilizer is obtained.

智能层状纳米稳泡剂在泡沫驱油中的应用，智能层状纳米稳泡剂应用于泡沫驱油中，可以提高泡沫驱油体系的泡沫寿命，从而提高泡沫的综合性能，进而实现对地层大孔道的暂堵，提高原油采收率；此外，该智能层状纳米稳泡剂被吸附在气液界面上具有不可逆性，有效增加泡沫的表面弹性，阻碍液相在液膜中的流动，延缓液膜变薄，阻止泡沫的粗化和聚并，达到稳定泡沫的目的，从而扩大波及体积，提高泡沫驱油效率。The application of intelligent layered nano foam stabilizers in foam oil recovery can increase the foam life of the foam oil recovery system, thereby improving the comprehensive performance of the foam, and then achieving temporary plugging of large pores in the formation and improving crude oil recovery; in addition, the intelligent layered nano foam stabilizer is adsorbed on the gas-liquid interface with irreversibility, effectively increasing the surface elasticity of the foam, hindering the flow of the liquid phase in the liquid film, delaying the thinning of the liquid film, and preventing the coarsening and aggregation of the foam, thereby achieving the purpose of stabilizing the foam, thereby expanding the swept volume and improving the efficiency of foam oil recovery.

采用激光粒度仪和接触角测量仪表征智能层状纳米稳泡剂的平均粒径和表面润湿性能，其平均粒径为45nm，接触角为70.4°；采用罗氏泡沫仪(GBT13173-2008)和岩心驱替装置(Q/SY T6424-2014)，评价了浓度为0.2％的智能层状纳米稳泡剂与0.4％的起泡剂十二烷基羟丙基磺基甜菜碱组成的泡沫配方的发泡能力、泡沫稳定性以及驱油效率，测试结果见表1；采用外加磁场对泡沫驱油后的智能层状纳米稳泡剂进行回收富集，使用乙醇和醋酸混合溶液进行洗涤三次，经100℃干燥后重复进行驱油实验。The average particle size and surface wetting properties of the smart layered nano foam stabilizer were characterized by a laser particle size analyzer and a contact angle meter. The average particle size was 45 nm and the contact angle was 70.4°. The foaming ability, foam stability and oil displacement efficiency of the foam formula composed of 0.2% smart layered nano foam stabilizer and 0.4% foaming agent dodecyl hydroxypropyl sulfobetaine were evaluated by a Roche foam analyzer (GBT13173-2008) and a core displacement device (Q/SY T6424-2014). The test results are shown in Table 1. The smart layered nano foam stabilizer after foam flooding was recovered and enriched by an external magnetic field, washed three times with a mixed solution of ethanol and acetic acid, and dried at 100°C before repeating the oil displacement experiment.

实施例4：Embodiment 4:

智能层状纳米稳泡剂，配方包括：MXene、无机物、碱源和交联剂，各组分的重量份数比分别是：10份的MXene、0.4份的无机物、0.1份的碱源和0.06份的交联剂；MXene为VCrCMXene；无机物为NiCl₂；碱源为醋酸钠；交联剂的结构为

The intelligent layered nano foam stabilizer comprises: MXene, inorganic substance, alkali source and cross-linking agent, wherein the weight proportions of the components are: 10 parts of MXene, 0.4 parts of inorganic substance, 0.1 parts of alkali source and 0.06 parts of cross-linking agent; MXene is VCrCMXene; inorganic substance is NiCl₂ ; alkali source is sodium acetate; the structure of the cross-linking agent is

智能层状纳米稳泡剂的制备方法，包括步骤一，原料称取；步骤二，制备混合液A；步骤三，制备混合液B；步骤四，获取成品；The preparation method of the intelligent layered nano foam stabilizer comprises the following steps: first, weighing the raw materials; second, preparing a mixed solution A; third, preparing a mixed solution B; and fourth, obtaining a finished product.

其中上述步骤一中，按照智能层状纳米稳泡剂的配方比例，分别称取MXene、无机物、碱源和交联剂备用；In the above step 1, according to the formula ratio of the smart layered nano foam stabilizer, MXene, inorganic matter, alkali source and cross-linking agent are weighed respectively for use;

其中上述步骤二中，将步骤一中所称取的无机物加入到100mL的去离子水中，超声溶解均匀，然后加入步骤一中所称取的碱源和交联剂，超声溶解均匀，得到混合液A；In the above step 2, the inorganic substance weighed in step 1 is added to 100 mL of deionized water, and ultrasonically dissolved evenly, and then the alkali source and cross-linking agent weighed in step 1 are added, and ultrasonically dissolved evenly to obtain a mixed solution A;

其中上述步骤三中，取步骤一中所称取的VCrC MXene，将其加入步骤二中所制备的混合液A中，在磁力搅拌下搅拌3h，将混合完全的溶液转移到高温高压反应釜中，在120℃下密闭反应12h，得到混合液B；In the above step 3, the VCrC MXene weighed in step 1 is added to the mixed solution A prepared in step 2, and stirred for 3 hours under magnetic stirring. The completely mixed solution is transferred to a high-temperature and high-pressure reactor, and reacted in a sealed state at 120° C. for 12 hours to obtain a mixed solution B.

其中上述步骤四中，将步骤三中得到的混合液B通过分离、洗涤后，加入到100mL的去离子水超声分散均匀，然后采用外接循环冷却装置的非接触式超声波细胞破碎仪，循环冷却液的温度为-20℃，以900W的功率进行破碎2h，最后通过分离、洗涤和干燥后，得到的智能层状纳米稳泡剂成品。In the above step 4, the mixed solution B obtained in step 3 is separated and washed, and then added to 100 mL of deionized water for ultrasonic dispersion. Then, a non-contact ultrasonic cell disruptor with an external circulating cooling device is used. The temperature of the circulating cooling liquid is -20°C, and the cell disruption is performed at a power of 900 W for 2 hours. Finally, after separation, washing and drying, a finished product of the intelligent layered nano foam stabilizer is obtained.

智能层状纳米稳泡剂在泡沫驱油中的应用，智能层状纳米稳泡剂应用于泡沫驱油中，可以提高泡沫驱油体系的泡沫寿命，从而提高泡沫的综合性能，进而实现对地层大孔道的暂堵，提高原油采收率；此外，该智能层状纳米稳泡剂被吸附在气液界面上具有不可逆性，有效增加泡沫的表面弹性，阻碍液相在液膜中的流动，延缓液膜变薄，阻止泡沫的粗化和聚并，达到稳定泡沫的目的，从而扩大波及体积，提高泡沫驱油效率。The application of intelligent layered nano foam stabilizers in foam oil recovery can increase the foam life of the foam oil recovery system, thereby improving the comprehensive performance of the foam, and then achieving temporary plugging of large pores in the formation and improving crude oil recovery; in addition, the intelligent layered nano foam stabilizer is adsorbed on the gas-liquid interface with irreversibility, effectively increasing the surface elasticity of the foam, hindering the flow of the liquid phase in the liquid film, delaying the thinning of the liquid film, and preventing the coarsening and aggregation of the foam, thereby achieving the purpose of stabilizing the foam, thereby expanding the swept volume and improving the efficiency of foam oil recovery.

采用激光粒度仪和接触角测量仪表征智能层状纳米稳泡剂的平均粒径和表面润湿性能，其平均粒径为35nm，接触角为69.7°；采用罗氏泡沫仪(GBT13173-2008)和岩心驱替装置(Q/SY T6424-2014)，评价了浓度为0.2％的智能层状纳米稳泡剂与0.4％的起泡剂α-烯基磺酸钠组成的泡沫配方的发泡能力、泡沫稳定性以及驱油效率，测试结果见表1；采用外加磁场对泡沫驱油后的智能层状纳米稳泡剂进行回收富集，使用乙醇和醋酸混合溶液进行洗涤三次，经100℃干燥后重复进行驱油实验。The average particle size and surface wetting properties of the smart layered nano foam stabilizer were characterized by a laser particle size analyzer and a contact angle meter. The average particle size was 35 nm and the contact angle was 69.7°. The foaming ability, foam stability and oil displacement efficiency of the foam formula composed of 0.2% smart layered nano foam stabilizer and 0.4% foaming agent sodium α-olefin sulfonate were evaluated by a Roche foam analyzer (GBT13173-2008) and a core displacement device (Q/SY T6424-2014). The test results are shown in Table 1. The smart layered nano foam stabilizer after foam flooding was recovered and enriched by an external magnetic field, washed three times with a mixed solution of ethanol and acetic acid, and dried at 100°C before repeating the oil displacement experiment.

对比例1：Comparative Example 1:

一种高分子改性膨润土稳泡剂及其制备方法(中国专利202010174556.8)，包括步骤如下：A polymer modified bentonite foam stabilizer and a preparation method thereof (Chinese Patent 202010174556.8), comprising the following steps:

将质量比为2:5的十六烷基三甲基溴化铵与膨润土在70℃下进行搅拌混合2h，然后抽滤、烘干、粉碎、过筛，得到有机改性膨润土；将质量比为10:3:2的2-丙烯酰胺基-2-甲基丙磺酸、丙烯酰胺、N-乙烯基吡咯烷酮溶解在水中配置单体浓度为10％的溶液，用0.1mol/L的氢氧化钠调节pH至4，然后加入有机改性膨润土，搅拌均匀，通润氮气20min，加入单体质量的0.1％的过硫酸铵，继续通入氮气2min，封闭反应器，在40℃下反应3h后，烘干、粉碎，得到高分子改性膨润土稳泡剂；实验采用吴茵搅拌法评价了浓度为0.4％的起泡剂癸基葡萄糖苷磺酸钠(FP1856)与1％的高分子改性膨润土颗粒稳泡剂组成的泡沫配方的发泡能力和泡沫稳定性；测试结果见表1。Hexadecyltrimethylammonium bromide and bentonite in a mass ratio of 2:5 were stirred and mixed at 70°C for 2h, then filtered, dried, crushed and sieved to obtain organic modified bentonite; 2-acrylamido-2-methylpropanesulfonic acid, acrylamide and N-vinylpyrrolidone in a mass ratio of 10:3:2 were dissolved in water to prepare a solution with a monomer concentration of 10%, the pH was adjusted to 4 with 0.1mol/L sodium hydroxide, and then the organic modified bentonite was added, stirred evenly, nitrogen was passed through for 20min, 0.1% of ammonium persulfate by mass of the monomer was added, and nitrogen was continued to be passed through for 2min, the reactor was closed, and after reacting at 40°C for 3h, it was dried and crushed to obtain a polymer modified bentonite foam stabilizer; the experiment used Wu Yin's stirring method to evaluate the foaming ability and foam stability of a foam formula composed of a foaming agent sodium decyl glucoside sulfonate (FP1856) with a concentration of 0.4% and a polymer modified bentonite particle foam stabilizer of 1%; the test results are shown in Table 1.

对比例2：Comparative Example 2:

一种智能纳米泡沫驱油剂的制备方法(201810761015.8)，包括步骤如下：A method for preparing an intelligent nano-foam oil-displacing agent (201810761015.8), comprising the following steps:

将0.1g的纳米四氧化三铁分散在200mL的去离子水中，加入1g的聚乙烯吡咯烷酮，用氮气吹扫30min，一次加1g的N-异丙基丙烯酰胺、0.1g的过硫酸钾、0.05g的对苯乙烯磺酸钠，加热至80℃反应12h，然后离心、干燥，得到纳米颗粒；将得到的纳米颗粒与1g的十二烷基硫酸钠一起分散在水中，得到智能纳米泡沫驱油剂，并采用岩心驱替实验研究了智能纳米泡沫驱油剂的驱油性能；根据Q/SY T6424-2014《复合驱油体系性能测试方法》评价原油采收率；测试结果见表1。0.1 g of nano-ferroferric oxide was dispersed in 200 mL of deionized water, 1 g of polyvinyl pyrrolidone was added, and the mixture was purged with nitrogen for 30 min. 1 g of N-isopropylacrylamide, 0.1 g of potassium persulfate, and 0.05 g of sodium p-styrene sulfonate were added at a time, and the mixture was heated to 80 ° C for reaction for 12 h, and then centrifuged and dried to obtain nanoparticles. The obtained nanoparticles were dispersed in water together with 1 g of sodium dodecyl sulfate to obtain an intelligent nano-foam oil-displacing agent, and the oil displacement performance of the intelligent nano-foam oil-displacing agent was studied by core displacement experiment. The crude oil recovery factor was evaluated according to Q/SY T6424-2014 "Test Method for Performance of Composite Oil Displacement System"; the test results are shown in Table 1.

表1 不同稳泡剂和泡沫驱油剂的性能测试情况数据表Table 1 Performance test data of different foam stabilizers and foam oil displacement agents

基于上述，由表1可得，实施例1所用的起泡剂和对比例1中一样，起泡体积并无差异，但是泡沫半衰期从5.0min显著提高至了12.3min，泡沫综合评价指数从3650mL·min提高至了8979mL·min，表明实施例1中的稳泡剂具有优异的稳泡性能；实施例2、实施例3和实施例4中的起泡剂不同于对比例1中所用的起泡剂，泡沫体积虽然均小于对比例1中的泡沫体积，但实施例2、实施例3和实施例4中的泡沫半衰期明显大于对比例1中的泡沫半衰期，其泡沫综合评价指数明显大于对比例1中的泡沫综合评价指数；因此，实施例1、实施例2、实施例3和实施例4中的智能层状纳米稳泡剂具有较高的稳泡能力；对比例2中没有关于泡沫体积和半衰期的数据，其原油总提高采收率为18.2％，而实施例1、实施例2、实施例3和实施例4的原油总提高采收率则分别为21.9％、20.1％、20.5％和21.0％，驱油性能优于对比例2；实施例1、实施例2、实施例3和实施例4中的智能层状纳米稳泡剂在回收后经洗涤再次进行驱油后的原油总提高采收率分别为21.5％、19.0％、19.3％和20.0％，表明智能层状纳米稳泡剂在泡沫驱油中具有良好的重复使用性能。Based on the above, it can be seen from Table 1 that the foaming agent used in Example 1 is the same as that in Comparative Example 1, and the foaming volume is no different, but the foam half-life is significantly increased from 5.0 min to 12.3 min, and the foam comprehensive evaluation index is increased from 3650 mL min to 8979 mL min, indicating that the foam stabilizer in Example 1 has excellent foam stabilizing performance; the foaming agents in Examples 2, 3 and 4 are different from the foaming agent used in Comparative Example 1, and although the foam volumes are all smaller than the foam volume in Comparative Example 1, the foam half-life in Examples 2, 3 and 4 is significantly greater than the foam half-life in Comparative Example 1, and their foam comprehensive evaluation index is significantly greater than the foam comprehensive evaluation index in Comparative Example 1; therefore, Example 1 The smart layered nano foam stabilizers in Example 2, Example 3 and Example 4 have high foam stabilizing ability; there is no data on foam volume and half-life in Comparative Example 2, and its total enhanced crude oil recovery is 18.2%, while the total enhanced crude oil recovery of Example 1, Example 2, Example 3 and Example 4 are 21.9%, 20.1%, 20.5% and 21.0%, respectively, and the oil displacement performance is better than that of Comparative Example 2; the total enhanced crude oil recovery of the smart layered nano foam stabilizers in Example 1, Example 2, Example 3 and Example 4 after recovery, washing and re-oil displacement are 21.5%, 19.0%, 19.3% and 20.0%, respectively, indicating that the smart layered nano foam stabilizers have good reusability in foam flooding.

对于本领域技术人员而言，显然本发明不限于上述示范性实施例的细节，而且在不背离本发明的精神或基本特征的情况下，能够以其他的具体形式实现本发明。因此，无论从哪一点来看，均应将实施例看作是示范性的，而且是非限制性的，本发明的范围由所附权利要求而不是上述说明限定，因此旨在将落在权利要求的等同要件的含义和范围内的所有变化囊括在本发明内。不应将权利要求中的任何附图标记视为限制所涉及的权利要求。It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims (6)

Translated fromChinese

1.智能层状纳米稳泡剂，配方包括：MXene、无机物、碱源和交联剂，其特征在于：各组分的重量份数比分别是：1-10份的MXene、0.1-1份的无机物、0.01-0.1份的碱源和0.01-0.1份的交联剂；1. Intelligent layered nano-foam stabilizer, the formula includes: MXene, inorganic substances, alkali source and crosslinking agent, it is characterized in that: the weight and number ratio of each component is: 1-10 parts of MXene, 0.1-1 1 part of inorganic substance, 0.01-0.1 part of alkali source and 0.01-0.1 part of crosslinking agent;所述无机物为NiCl₂、FeCl₃、CoCl₂、Ni(NO₃)₂、Fe(NO₃)₃、Co(NO₃)₂中的一种或两种；The inorganic substance is one or two of NiCl₂ , FeCl₃ , CoCl₂ , Ni(NO₃ )₂ , Fe(NO₃ )₃ , Co(NO₃ )₂ ;所述碱源为醋酸钠或柠檬酸钠；The alkali source is sodium acetate or sodium citrate;所述交联剂的结构为：The structure of the crosslinking agent is:

所述智能层状纳米稳泡剂的制备方法，包括步骤一，原料称取；步骤二，制备混合液A；步骤三，制备混合液B；步骤四，获取成品；其特征在于：The preparation method of the intelligent layered nano-foam stabilizer includes step 1, weighing raw materials; step 2, preparing mixed solution A; step 3, preparing mixed solution B; step 4, obtaining finished products; it is characterized in that:其中上述步骤一中，按照智能层状纳米稳泡剂的配方比例，分别称取MXene、无机物、碱源和交联剂备用；Wherein in the above step 1, according to the formula ratio of the intelligent layered nano-foam stabilizer, respectively weigh MXene, inorganic matter, alkali source and cross-linking agent for subsequent use;其中上述步骤二中，将步骤一中所称取的无机物加入到适量的去离子水中，超声溶解均匀，然后加入步骤一中所称取的碱源和交联剂，超声溶解均匀，得到混合液A；In the above step 2, the inorganic matter weighed in step 1 is added to an appropriate amount of deionized water, and ultrasonically dissolved evenly, and then the alkali source and crosslinking agent weighed in step 1 are added, ultrasonically dissolved uniformly, and the mixed Liquid A;其中上述步骤三中，取步骤一中所称取的MXene，将其加入步骤二中所制备的混合液A中，在磁力搅拌下搅拌2-4h，将混合完全的溶液转移到高温高压反应釜中，在120℃下密闭反应8-12h，得到混合液B；In the above step 3, take the MXene weighed in step 1, add it to the mixed solution A prepared in step 2, stir for 2-4h under magnetic stirring, and transfer the fully mixed solution to the high temperature and high pressure reactor , react in a closed manner at 120°C for 8-12 hours to obtain a mixed solution B;其中上述步骤四中，将步骤三中得到的混合液B通过分离、洗涤后，加入到100mL的去离子水超声分散均匀，然后采用破碎仪破碎一段时间，最后通过分离、洗涤和干燥后，得到的智能层状纳米稳泡剂成品。In the above step 4, the mixed solution B obtained in step 3 is separated and washed, then added to 100mL of deionized water for ultrasonic dispersion, and then crushed by a crusher for a period of time, and finally separated, washed and dried to obtain The finished product of intelligent layered nano foam stabilizer.2.根据权利要求1所述的智能层状纳米稳泡剂，其特征在于：所述MXene为Ti₃C₂ MXene、Ti₂C MXene、Nb₂C MXene、V₂C MXene、TiVC MXene、Ti₃CN MXene、Ti₂N Mxene、V₂N MXene、Nb₄C₃ MXene、V₄C₃ MXene、TiNbC MXene、Mo₂Ti₂C₃ Mxene、Mo₂TiC₂ MXene、Mo₂C MXene、Cr₂CMXene、Ta₂C MXene、Ta₄C₃ MXene、W_1.33C MXene、Mo_1.33C MXene、VCrC MXene中的一种或几种。2. The intelligent layered nano foam stabilizer according to claim 1, characterized in that: the MXene is Ti₃ C₂ MXene, Ti₂ C MXene, Nb₂ C MXene, V₂ C MXene, TiVC MXene, Ti₃ CN MXene, Ti₂ N Mxene, V₂ N MXene, Nb₄ C₃ MXene, V₄ C₃ MXene, TiNbC MXene, Mo₂ Ti₂ C₃ Mxene, Mo₂ TiC₂ MXene, Mo₂ C MXene, Cr₂ One or more of CMXene, Ta₂ C MXene, Ta₄ C₃ MXene, W_1.33 C MXene, Mo_1.33 C MXene, VCrC MXene.3.根据权利要求1所述的智能层状纳米稳泡剂的制备方法，包括步骤一，原料称取；步骤二，制备混合液A；步骤三，制备混合液B；步骤四，获取成品；其特征在于：3. The preparation method of the intelligent layered nano-foam stabilizer according to claim 1, comprising step 1, weighing raw materials; step 2, preparing mixed solution A; step 3, preparing mixed solution B; step 4, obtaining finished product; It is characterized by:其中上述步骤一中，按照智能层状纳米稳泡剂的配方比例，分别称取MXene、无机物、碱源和交联剂备用；Wherein in the above step 1, according to the formula ratio of the intelligent layered nano-foam stabilizer, respectively weigh MXene, inorganic matter, alkali source and cross-linking agent for subsequent use;其中上述步骤二中，将步骤一中所称取的无机物加入到适量的去离子水中，超声溶解均匀，然后加入步骤一中所称取的碱源和交联剂，超声溶解均匀，得到混合液A；In the above step 2, the inorganic matter weighed in step 1 is added to an appropriate amount of deionized water, and ultrasonically dissolved evenly, and then the alkali source and crosslinking agent weighed in step 1 are added, ultrasonically dissolved uniformly, and the mixed Liquid A;其中上述步骤三中，取步骤一中所称取的MXene，将其加入步骤二中所制备的混合液A中，在磁力搅拌下搅拌2-4h，将混合完全的溶液转移到高温高压反应釜中，在120℃下密闭反应8-12h，得到混合液B；In the above step 3, take the MXene weighed in step 1, add it to the mixed solution A prepared in step 2, stir for 2-4h under magnetic stirring, and transfer the fully mixed solution to the high temperature and high pressure reactor , react in a closed manner at 120°C for 8-12 hours to obtain a mixed solution B;其中上述步骤四中，将步骤三中得到的混合液B通过分离、洗涤后，加入到100mL的去离子水超声分散均匀，然后采用破碎仪破碎一段时间，最后通过分离、洗涤和干燥后，得到的智能层状纳米稳泡剂成品。In the above step 4, the mixed solution B obtained in step 3 is separated and washed, then added to 100mL of deionized water for ultrasonic dispersion, and then crushed by a crusher for a period of time, and finally separated, washed and dried to obtain The finished product of intelligent layered nano foam stabilizer.4.根据权利要求3所述的智能层状纳米稳泡剂的制备方法，其特征在于：所述步骤一中，去离子水的体积为100mL。4. The preparation method of the intelligent layered nano-foam stabilizer according to claim 3, characterized in that: in the step 1, the volume of deionized water is 100mL.5.根据权利要求3所述的智能层状纳米稳泡剂的制备方法，其特征在于：所述步骤四中，破碎仪为外接循环冷却装置的非接触式超声波细胞破碎仪，循环冷却液的温度为-20℃，以700-900W的功率进行破碎1-2h。5. the preparation method of intelligent layered nano-foam stabilizer according to claim 3, is characterized in that: in described step 4, breaker is the non-contact ultrasonic cell breaker of externally connected circulating cooling device, the cooling liquid of circulation The temperature is -20°C, and the power of 700-900W is used for crushing for 1-2 hours.6.权利要求1-2任一项所述的智能层状纳米稳泡剂或根据权利要求3-5任一项所述的制备方法制备得到的智能层状纳米稳泡剂在泡沫驱油中的应用，其特征在于：所述智能层状纳米稳泡剂应用于泡沫驱油中，可以提高泡沫驱油体系的泡沫寿命，从而提高泡沫的综合性能，进而实现对地层大孔道的暂堵，提高原油采收率；此外，该智能层状纳米稳泡剂被吸附在气液界面上具有不可逆性，有效增加泡沫的表面弹性，阻碍液相在液膜中的流动，延缓液膜变薄，阻止泡沫的粗化和聚并，达到稳定泡沫的目的，从而扩大波及体积，提高泡沫驱油效率。6. the intelligent layered nano-foam stabilizer according to any one of claim 1-2 or the intelligent layered nano-foam stabilizer prepared according to the preparation method described in any one of claims 3-5 in foam flooding The application of the method is characterized in that: the intelligent layered nano-foam stabilizer is applied in foam flooding, which can improve the foam life of the foam flooding system, thereby improving the comprehensive performance of the foam, and then realizing the temporary blocking of large pores in the formation, Improve oil recovery; in addition, the intelligent layered nano-foam stabilizer is irreversibly adsorbed on the gas-liquid interface, which can effectively increase the surface elasticity of the foam, hinder the flow of the liquid phase in the liquid film, and delay the thinning of the liquid film. Prevent the coarsening and agglomeration of the foam, achieve the purpose of stabilizing the foam, thereby expanding the swept volume and improving the foam displacement efficiency.

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