技术领域Technical field
本发明涉及油田开发技术领域，尤其涉及一种压裂用助排剂及其制备方法和应用。The invention relates to the technical field of oil field development, and in particular to a drainage aid for fracturing and its preparation method and application.
背景技术Background technique
压裂是低渗、特低渗油气藏储层改造的重要措施，是实现致密油气藏有效开发的主导技术。在油井进行酸化压裂过程中，需要将井内返排液快速排出地面，通常情况下依靠地层自身压力将返排液快速排到地面。当地层压力逐渐减弱，井内返排液返排速度明显降低，返排液中残渣析出后会对底层造成堵塞，造成地层的二次污染从而影响施工进度及效率。为了解决油层酸化压裂后返排液返排困难的问题，使用助排剂是常规手段。Fracturing is an important measure for reservoir modification in low-permeability and ultra-low-permeability oil and gas reservoirs, and is the leading technology for effective development of tight oil and gas reservoirs. During the acidification fracturing process of an oil well, the flowback fluid in the well needs to be quickly discharged to the surface. Usually, the flowback fluid is quickly discharged to the surface by relying on the formation's own pressure. When the formation pressure gradually weakens, the flowback speed of the flowback fluid in the well decreases significantly. The precipitation of residues in the flowback fluid will cause blockage of the bottom layer, causing secondary pollution of the formation, thus affecting the construction progress and efficiency. In order to solve the problem of difficult flowback of flowback fluid after acidification and fracturing of oil reservoirs, the use of drainage aids is a common method.
助排剂是一种能帮助酸化、压裂等作业过程中的工作残液从地层返排的化学品，它可以降低压裂液的表面张力和界面张力，增加返排液的返排能量，同时减少压裂液对地层的伤害。因而，寻找显著降低表面张力和界面张力的压裂用助排剂，提高压裂液返排率，降低压裂液对储层造成的水敏、水锁伤害，具有重要的现实意义。Drainage aid is a chemical that can help the residual fluid flow back from the formation during acidification, fracturing and other operations. It can reduce the surface tension and interfacial tension of the fracturing fluid and increase the flowback energy of the flowback fluid. At the same time, the damage caused by fracturing fluid to the formation is reduced. Therefore, it is of great practical significance to find fracturing drainage aids that can significantly reduce surface tension and interfacial tension, increase fracturing fluid flowback rate, and reduce water sensitivity and water locking damage caused by fracturing fluid to reservoirs.
发明内容Contents of the invention
本发明的目的在于提供一种压裂用助排剂及其制备方法和应用，所述压裂用助排剂能够显著降低表面张力和界面张力，从而可以提高压裂液返排率。The purpose of the present invention is to provide a fracturing drainage aid and its preparation method and application. The fracturing drainage aid can significantly reduce surface tension and interfacial tension, thereby increasing the fracturing fluid flowback rate.
为了实现上述发明目的，本发明提供以下技术方案：In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:
本发明提供了一种压裂用助排剂，包括以下质量份数的制备原料：The invention provides a drainage aid for fracturing, which includes the following mass parts of preparation raw materials:
聚氧乙烯型非离子表面活性剂30～50份、酰胺型非离子表面活性剂10～30份、木质素磺酸盐20～30份、松香基磺酸盐20～30份、低分子醇50～60份。30 to 50 parts of polyoxyethylene nonionic surfactant, 10 to 30 parts of amide nonionic surfactant, 20 to 30 parts of lignin sulfonate, 20 to 30 parts of rosin sulfonate, and 50 parts of low molecular alcohol ~60 servings.
优选的，所述聚氧乙烯型非离子表面活性剂包括烷基酚聚氧乙烯醚、聚氧乙烯脂肪醇醚或脂肪酸聚氧乙烯醚。Preferably, the polyoxyethylene nonionic surfactant includes alkylphenol polyoxyethylene ether, polyoxyethylene fatty alcohol ether or fatty acid polyoxyethylene ether.
优选的，所述脂肪酸聚氧乙烯醚为SG-40、SG-50和SG-100中的一种或多种。Preferably, the fatty acid polyoxyethylene ether is one or more of SG-40, SG-50 and SG-100.
优选的，所述酰胺型非离子表面活性剂为6501表面活性剂。Preferably, the amide type nonionic surfactant is 6501 surfactant.
优选的，所述低分子醇包括丙三醇或甲醇。Preferably, the low molecular alcohol includes glycerol or methanol.
本发明提供了上述技术方案所述压裂用助排剂的制备方法，包括以下步骤：The present invention provides a method for preparing a drainage aid for fracturing according to the above technical solution, which includes the following steps:
将聚氧乙烯型非离子表面活性剂、酰胺型非离子表面活性剂、木质素磺酸盐、松香基磺酸盐和低分子醇混合，得到压裂用助排剂。Mix polyoxyethylene nonionic surfactant, amide nonionic surfactant, lignin sulfonate, rosin sulfonate and low molecular alcohol to obtain a drainage aid for fracturing.
优选的，所述混合在搅拌条件下进行，所述搅拌的转速为100～150rpm。Preferably, the mixing is performed under stirring conditions, and the stirring speed is 100 to 150 rpm.
优选的，所述混合的温度为50～65℃。Preferably, the mixing temperature is 50-65°C.
优选的，所述混合的时间为1～3h。Preferably, the mixing time is 1 to 3 hours.
本发明提供了上述技术方案所述压裂用助排剂或上述技术方案所述制备方法制备得到的压裂用助排剂在油田开采中的应用。The present invention provides the application of the drainage aid for fracturing described in the above technical solution or the drainage aid for fracturing prepared by the preparation method described in the above technical solution in oil field exploitation.
本发明所述压裂用助排剂中，聚氧乙烯型非离子表面活性剂具有极高的表面活性，可将溶液表面张力降到极低水平，而且稳定性高，能提高助排剂体系的整体稳定性；酰胺型非离子表面活性剂能与多种表面活性剂配伍，可完全溶解于不同种类的添加剂中，从而降低表面张力和界面张力。本发明利用聚氧乙烯型非离子表面活性剂和酰胺型非离子表面活性剂复配产生协同作用，能够极大降低助排剂的表面张力和界面张力，提高压裂液的返排效果。木质素磺酸盐和松香基磺酸盐复配能显著提高表面活性，从而进一步降低表面张力。本发明提供的压裂用助排剂具有低表面张力(25℃，＜21mN/m)和低界面张力(25℃，＜0.25mN/m)。Among the drainage aids for fracturing of the present invention, the polyoxyethylene nonionic surfactant has extremely high surface activity, can reduce the surface tension of the solution to an extremely low level, has high stability, and can improve the drainage aid system. Overall stability; amide-type nonionic surfactants can be compatible with a variety of surfactants and can be completely dissolved in different types of additives, thereby reducing surface tension and interfacial tension. The present invention utilizes the combination of polyoxyethylene nonionic surfactant and amide type nonionic surfactant to produce a synergistic effect, which can greatly reduce the surface tension and interfacial tension of the drainage aid and improve the flowback effect of fracturing fluid. The combination of lignosulfonate and rosinyl sulfonate can significantly increase surface activity, thereby further reducing surface tension. The drainage aid for fracturing provided by the present invention has low surface tension (25°C, <21mN/m) and low interfacial tension (25°C, <0.25mN/m).
本发明所述的压裂用助排剂的制备步骤简便、原料简单，助排剂体系的性能稳定。The preparation steps of the drainage aid for fracturing of the present invention are simple, the raw materials are simple, and the performance of the drainage aid system is stable.
本发明所述压裂用助排剂与压裂液具有良好的配伍性能，复配后不会影响压裂液自身性能。The drainage aid for fracturing of the present invention has good compatibility with the fracturing fluid, and will not affect the performance of the fracturing fluid itself after compounding.
具体实施方式Detailed ways
本发明提供了一种压裂用助排剂，包括以下质量份数的制备原料：The invention provides a drainage aid for fracturing, which includes the following mass parts of preparation raw materials:
聚氧乙烯型非离子表面活性剂30～50份、酰胺型非离子表面活性剂10～30份、木质素磺酸盐20～30份、松香基磺酸盐20～30份、低分子醇50～60份。30 to 50 parts of polyoxyethylene nonionic surfactant, 10 to 30 parts of amide nonionic surfactant, 20 to 30 parts of lignin sulfonate, 20 to 30 parts of rosin sulfonate, and 50 parts of low molecular alcohol ~60 servings.
若无特殊说明，本发明所用制备原料均为本领域熟知的市售商品。Unless otherwise specified, the raw materials used in the present invention are all commercially available products well known in the art.
以质量份计，本发明提供的压裂用助排剂的制备原料包括聚氧乙烯型非离子表面活性剂30～50份，优选为35～55份，更优选为40～50份。在本发明中，所述聚氧乙烯型非离子表面活性剂优选包括烷基酚聚氧乙烯醚、聚氧乙烯脂肪醇醚或脂肪酸聚氧乙烯醚；所述脂肪酸聚氧乙烯醚优选为SG-40、SG-50和SG-100中的一种或多种，当所述脂肪酸聚氧乙烯醚为上述中两种以上时，本发明对不同种类脂肪酸聚氧乙烯醚的配比没有特殊的限定，根据实际需求调整即可。In terms of parts by mass, the raw materials for preparing the drainage aid for fracturing provided by the present invention include 30 to 50 parts of polyoxyethylene nonionic surfactant, preferably 35 to 55 parts, and more preferably 40 to 50 parts. In the present invention, the polyoxyethylene nonionic surfactant preferably includes alkylphenol polyoxyethylene ether, polyoxyethylene fatty alcohol ether or fatty acid polyoxyethylene ether; the fatty acid polyoxyethylene ether is preferably SG- 40. One or more of SG-50 and SG-100. When the fatty acid polyoxyethylene ethers are two or more of the above, the present invention has no special restrictions on the ratio of different types of fatty acid polyoxyethylene ethers. , which can be adjusted according to actual needs.
以所述聚氧乙烯型非离子表面活性剂的质量份数为基准，本发明提供的压裂用助排剂的制备原料包括酰胺型非离子表面活性剂10～30份，优选为15～28份，更优选为20～25份，进一步优选为22～23份。在本发明中，所述酰胺型非离子表面活性剂优选为6501表面活性剂。Based on the mass parts of the polyoxyethylene nonionic surfactant, the raw materials for preparing the drainage aid for fracturing provided by the present invention include 10 to 30 parts of the amide type nonionic surfactant, preferably 15 to 28 parts parts, more preferably 20 to 25 parts, still more preferably 22 to 23 parts. In the present invention, the amide type nonionic surfactant is preferably 6501 surfactant.
以所述聚氧乙烯型非离子表面活性剂的质量份数为基准，本发明提供的压裂用助排剂的制备原料包括木质素磺酸盐20～30份，优选为22～28份，更优选为23～26份，进一步优选为24～25份。Based on the mass fraction of the polyoxyethylene nonionic surfactant, the raw materials for preparing the drainage aid for fracturing provided by the present invention include 20 to 30 parts of lignosulfonate, preferably 22 to 28 parts, More preferably, it is 23-26 parts, Still more preferably, it is 24-25 parts.
以所述聚氧乙烯型非离子表面活性剂的质量份数为基准，本发明提供的压裂用助排剂的制备原料包括松香基磺酸盐20～30份，，优选为22～28份，更优选为23～26份，进一步优选为24～25份。本发明对所述松香基磺酸盐没有特殊的限定，按照本领域熟知的制备方法制备或熟知的方式获取均可。Based on the mass fraction of the polyoxyethylene nonionic surfactant, the raw materials for preparing the fracturing drainage aid provided by the present invention include 20 to 30 parts of rosin sulfonate, preferably 22 to 28 parts. , more preferably 23 to 26 parts, still more preferably 24 to 25 parts. The present invention has no special limitations on the rosinyl sulfonate, and it can be prepared according to preparation methods well known in the art or obtained in a well-known manner.
以所述聚氧乙烯型非离子表面活性剂的质量份数为基准，本发明提供的压裂用助排剂的制备原料包括低分子醇50～60份，优选为52～58份，更优选为53～56份，进一步优选为54～55份。在本发明中，所述低分子醇优选包括丙三醇或甲醇。Based on the mass fraction of the polyoxyethylene nonionic surfactant, the raw materials for preparing the fracturing drainage aid provided by the present invention include 50 to 60 parts of low molecular alcohol, preferably 52 to 58 parts, and more preferably It is 53-56 parts, More preferably, it is 54-55 parts. In the present invention, the low molecular alcohol preferably includes glycerol or methanol.
本发明提供了上述技术方案所述压裂用助排剂的制备方法，包括以下步骤：The present invention provides a method for preparing a drainage aid for fracturing according to the above technical solution, which includes the following steps:
将聚氧乙烯型非离子表面活性剂、酰胺型非离子表面活性剂、木质素磺酸盐、松香基磺酸盐和低分子醇混合，得到压裂用助排剂。Mix polyoxyethylene nonionic surfactant, amide nonionic surfactant, lignin sulfonate, rosin sulfonate and low molecular alcohol to obtain a drainage aid for fracturing.
本发明对所述混合的过程中原料的添加顺序没有特殊的限定，按照本领域熟知的过程将原料混合均匀即可。The present invention has no special restrictions on the order in which the raw materials are added during the mixing process. The raw materials can be mixed evenly according to a process well known in the art.
在本发明中，所述混合优选在搅拌条件下进行，所述搅拌的转速优选为100～150rpm，更优选为110～130rpm。In the present invention, the mixing is preferably performed under stirring conditions, and the stirring speed is preferably 100 to 150 rpm, and more preferably 110 to 130 rpm.
在本发明中，所述混合的温度优选为50～65℃，更优选为55～60℃，所述混合的时间优选为1～3h，更优选为1.5～2.5h。In the present invention, the mixing temperature is preferably 50 to 65°C, more preferably 55 to 60°C, and the mixing time is preferably 1 to 3 hours, more preferably 1.5 to 2.5 hours.
本发明提供了上述技术方案所述压裂用助排剂或上述技术方案所述制备方法制备得到的压裂用助排剂在油田开采中的应用。本发明对所述应用的方法没有特殊的限定，按照本领域熟知的方法应用即可。The present invention provides the application of the drainage aid for fracturing described in the above technical solution or the drainage aid for fracturing prepared by the preparation method described in the above technical solution in oil field exploitation. The present invention has no special limitations on the application method, and it can be applied according to methods well known in the art.
下面结合实施例对本发明提供的技术方案进行详细的说明，但是不能把它们理解为对本发明保护范围的限定。The technical solutions provided by the present invention will be described in detail below with reference to the examples, but they should not be understood as limiting the protection scope of the present invention.
以下实施例中，所用松香基磺酸盐为按照现有技术(松香基磺酸盐表面活性剂的合成及性能研究,贾卫红,生物质化学工程,2008,(第4期).)所记载的方法制备而得。In the following examples, the rosinyl sulfonate used was recorded in accordance with the existing technology (Synthesis and Performance Study of Rosinyl Sulfonate Surfactant, Jia Weihong, Biomass Chemical Engineering, 2008, (Issue 4).) Prepared by method.
实施例1Example 1
本实施例提供的压裂用助排剂，制备原料为：聚氧乙烯型非离子表面活性剂(烷基酚聚氧乙烯醚)30份、酰胺型非离子表面活性剂(6501表面活性剂)15份、木质素磺酸盐25份、松香基磺酸盐25份、低分子醇(丙三醇)60份；The drainage aid for fracturing provided in this example is prepared from the following raw materials: 30 parts of polyoxyethylene nonionic surfactant (alkylphenol polyoxyethylene ether), amide type nonionic surfactant (6501 surfactant) 15 parts, lignosulfonate 25 parts, rosinyl sulfonate 25 parts, low molecular alcohol (glycerol) 60 parts;
制备方法，将上述原料依次添加至混合罐中，在150rpm搅拌条件下，在60℃混合2h，得到压裂用助排剂。The preparation method is to add the above raw materials to a mixing tank in sequence, and mix at 60°C for 2 hours under stirring conditions of 150 rpm to obtain a drainage aid for fracturing.
实施例2Example 2
本实施例提供的压裂用助排剂，制备原料为：聚氧乙烯型非离子表面活性剂(聚氧乙烯脂肪醇醚)35份、酰胺型非离子表面活性剂(6501表面活性剂)10份、木质素磺酸盐20份、松香基磺酸盐20份、低分子醇(甲醇)55份；The raw materials for preparing the drainage aid for fracturing provided in this embodiment are: 35 parts of polyoxyethylene nonionic surfactant (polyoxyethylene fatty alcohol ether), 10 parts of amide nonionic surfactant (6501 surfactant) parts, 20 parts of lignin sulfonate, 20 parts of rosin sulfonate, 55 parts of low molecular alcohol (methanol);
制备方法，将上述原料依次添加至混合罐中，在130rpm搅拌条件下，在65℃混合3h，得到压裂用助排剂。The preparation method is to add the above raw materials to a mixing tank in sequence, and mix at 65°C for 3 hours under stirring conditions of 130 rpm to obtain a drainage aid for fracturing.
实施例3Example 3
本实施例提供的压裂用助排剂，制备原料为：聚氧乙烯型非离子表面活性剂(脂肪酸聚氧乙烯醚SG-40)40份、酰胺型非离子表面活性剂(6501表面活性剂)20份、木质素磺酸盐30份、松香基磺酸盐30份、低分子醇(丙三醇)55份；The raw materials for preparing the drainage aid for fracturing provided in this example are: 40 parts of polyoxyethylene nonionic surfactant (fatty acid polyoxyethylene ether SG-40), amide type nonionic surfactant (6501 surfactant ) 20 parts, 30 parts of lignosulfonate, 30 parts of rosinyl sulfonate, 55 parts of low molecular alcohol (glycerol);
制备方法，将上述原料依次添加至混合罐中，在120rpm搅拌条件下，在55℃混合3h，得到压裂用助排剂。The preparation method is to add the above raw materials to a mixing tank in sequence, and mix at 55°C for 3 hours under stirring conditions of 120 rpm to obtain a drainage aid for fracturing.
实施例4Example 4
本实施例提供的压裂用助排剂，制备原料为：聚氧乙烯型非离子表面活性剂(脂肪酸聚氧乙烯醚SG-50)50份、酰胺型非离子表面活性剂(6501表面活性剂)25份、木质素磺酸盐30份、松香基磺酸盐25份、低分子醇(丙三醇)60份；The raw materials for preparing the drainage aid for fracturing provided in this embodiment are: 50 parts of polyoxyethylene nonionic surfactant (fatty acid polyoxyethylene ether SG-50), amide type nonionic surfactant (6501 surfactant ) 25 parts, 30 parts of lignosulfonate, 25 parts of rosinyl sulfonate, 60 parts of low molecular alcohol (glycerol);
制备方法，将上述原料依次添加至混合罐中，在150rpm搅拌条件下，在65℃混合1h，得到压裂用助排剂。The preparation method is to add the above raw materials to a mixing tank in sequence, and mix at 65°C for 1 hour under stirring conditions of 150 rpm to obtain a drainage aid for fracturing.
实施例5Example 5
本实施例提供的压裂用助排剂，制备原料为：聚氧乙烯型非离子表面活性剂(脂肪酸聚氧乙烯醚SG-100)45份、酰胺型非离子表面活性剂(6501表面活性剂)25份、木质素磺酸盐30份、松香基磺酸盐30份、低分子醇(甲醇)55份；The preparation raw materials for the drainage aid for fracturing provided in this embodiment are: 45 parts of polyoxyethylene nonionic surfactant (fatty acid polyoxyethylene ether SG-100), amide type nonionic surfactant (6501 surfactant ) 25 parts, 30 parts of lignosulfonate, 30 parts of rosinyl sulfonate, 55 parts of low molecular alcohol (methanol);
制备方法，将上述原料依次添加至混合罐中，在130rpm搅拌条件下，在50℃混合1h，得到压裂用助排剂。The preparation method is to add the above raw materials to a mixing tank in sequence, mix at 50°C for 1 hour under stirring conditions of 130 rpm, and obtain a drainage aid for fracturing.
对比例1Comparative example 1
与实施例1的区别仅在于：不添加酰胺型非离子表面活性剂。The only difference from Example 1 is that no amide nonionic surfactant is added.
对比例2Comparative example 2
与实施例1的区别仅在于：不添加松香基磺酸盐。The only difference from Example 1 is that no rosinyl sulfonate is added.
对比例3Comparative example 3
与实施例1的区别仅在于：不添加木质素磺酸盐。The only difference from Example 1 is that no lignosulfonate is added.
性能测试Performance Testing
根据QSY 17376-2017酸化压裂助排剂技术规范和SY_T 5755-1995压裂酸化用助排剂性能评价，将实施例1～5以及对比例1～3的助排剂进行表面张力和界面张力的性能比较，样品使用浓度为质量百分比浓度0.5％，测试温度为25℃，测试结果如表1所示。According to QSY 17376-2017 technical specifications for acidizing and fracturing drainage aids and SY_T 5755-1995 performance evaluation of drainage aids for fracturing and acidizing, the drainage aids of Examples 1 to 5 and Comparative Examples 1 to 3 were tested for surface tension and interfacial tension. For performance comparison, the sample concentration is 0.5% by mass, and the test temperature is 25°C. The test results are shown in Table 1.
表1实施例1～5和对比例1～3的助排剂的表面张力和界面张力Table 1 Surface tension and interfacial tension of the drainage aids of Examples 1 to 5 and Comparative Examples 1 to 3
由表1可知，本申请提供的压裂用助排剂能够显著降低水的表面张力和油水间的界面张力，更有利于提高压裂液的返排效果，从而降低对地层的伤害。此外，根据实施例1～5与对比例1～3的比较可知，本发明通过聚氧乙烯型非离子表面活性剂、酰胺型非离子表面活性剂、木质素磺酸盐和松香基磺酸盐的协同作用，进一步降低界面张力和表面张力，提高压裂用助排剂的返排效果。As can be seen from Table 1, the fracturing drainage aid provided by this application can significantly reduce the surface tension of water and the interfacial tension between oil and water, which is more conducive to improving the flowback effect of fracturing fluid, thereby reducing damage to the formation. In addition, according to the comparison between Examples 1 to 5 and Comparative Examples 1 to 3, it can be seen that the present invention uses polyoxyethylene nonionic surfactant, amide type nonionic surfactant, lignosulfonate and rosinyl sulfonate. The synergistic effect further reduces the interfacial tension and surface tension and improves the flowback effect of the fracturing aid.
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。The above are only preferred embodiments of the present invention. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principles of the present invention. These improvements and modifications can also be made. should be regarded as the protection scope of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310777408.9ACN116814234A (en) | 2023-06-28 | 2023-06-28 | A drainage aid for fracturing and its preparation method and application |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310777408.9ACN116814234A (en) | 2023-06-28 | 2023-06-28 | A drainage aid for fracturing and its preparation method and application |
| Publication Number | Publication Date |
|---|---|
| CN116814234Atrue CN116814234A (en) | 2023-09-29 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310777408.9APendingCN116814234A (en) | 2023-06-28 | 2023-06-28 | A drainage aid for fracturing and its preparation method and application |
| Country | Link |
|---|---|
| CN (1) | CN116814234A (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117987134A (en)* | 2024-04-07 | 2024-05-07 | 山东德坤工贸有限公司 | Cleanup additive for oil well fracturing and production method |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109575903A (en)* | 2018-12-07 | 2019-04-05 | 新疆康恩实业石油化工有限公司 | A kind of formula and preparation method thereof of the pressure break cleanup additive of the compound containing fluorine carbon |
| CN111518536A (en)* | 2020-05-22 | 2020-08-11 | 德蓝水技术股份有限公司 | Cleanup additive for fracturing fluid and preparation method thereof |
| CN113004883A (en)* | 2021-03-22 | 2021-06-22 | 郑州市新郑梅久实业有限公司 | Cleanup additive for fracturing and preparation method thereof |
| CN115584256A (en)* | 2022-12-13 | 2023-01-10 | 中石化西南石油工程有限公司 | High-temperature-resistant high-salt cleanup additive for acidizing and fracturing and preparation method thereof |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109575903A (en)* | 2018-12-07 | 2019-04-05 | 新疆康恩实业石油化工有限公司 | A kind of formula and preparation method thereof of the pressure break cleanup additive of the compound containing fluorine carbon |
| CN111518536A (en)* | 2020-05-22 | 2020-08-11 | 德蓝水技术股份有限公司 | Cleanup additive for fracturing fluid and preparation method thereof |
| CN113004883A (en)* | 2021-03-22 | 2021-06-22 | 郑州市新郑梅久实业有限公司 | Cleanup additive for fracturing and preparation method thereof |
| CN115584256A (en)* | 2022-12-13 | 2023-01-10 | 中石化西南石油工程有限公司 | High-temperature-resistant high-salt cleanup additive for acidizing and fracturing and preparation method thereof |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117987134A (en)* | 2024-04-07 | 2024-05-07 | 山东德坤工贸有限公司 | Cleanup additive for oil well fracturing and production method |
| Publication | Publication Date | Title |
|---|---|---|
| CN116814234A (en) | A drainage aid for fracturing and its preparation method and application | |
| CN115746820B (en) | High-temperature-resistant carbon dioxide foam fracturing fluid and preparation method and application thereof | |
| CN101735794B (en) | An Additive for Improving Wettability of Coal Powder | |
| CN105112041A (en) | Fracturing fluid capable of resisting low pH value environment and higher salinity and preparation method thereof | |
| CN106566677B (en) | A kind of the cleaning dispersing agent and preparation method of the scale removal of oil field oil pipeline on-line cleaning | |
| CN103387858B (en) | The preparation formula of coal water slurry dispersing agent and production technology thereof | |
| CN111518536B (en) | Cleanup additive for fracturing fluid and preparation method thereof | |
| CN111187606B (en) | A kind of surfactant for seawater-based recyclable clean fracturing fluid and preparation method thereof | |
| CN104864267B (en) | A kind of combustible ice formation inhibitor and its preparation method and application | |
| CN109999400B (en) | Environment-friendly slurry macromolecule breaking agent and preparation method and application thereof | |
| CN109897704B (en) | Coal water slurry additive, composition thereof and preparation method of coal water slurry | |
| CN117467426A (en) | High-temperature autogenous acid for acidification and preparation method thereof | |
| CN115011322A (en) | High temperature oil displacing agent and its preparation method and application | |
| CN111154478A (en) | Filtrate reducer for enlarging effective action distance of acid liquor and preparation method and application thereof | |
| CN114853188A (en) | A kind of phosphorus-free scale and corrosion inhibitor for heat net and its preparation method and application | |
| CN118620590B (en) | Preparation method and application of multifunctional additive for acidification | |
| CN113817155B (en) | Crude oil demulsifier and preparation method thereof | |
| CN111574990A (en) | Sludge dispersants for acidified liquor systems | |
| CN116254101B (en) | Polymer-surfactant oil displacement composition and preparation method and application method thereof | |
| CN115851387B (en) | Scale inhibitor special for propane dehydrogenation process unit and preparation method thereof | |
| CN114479802B (en) | Temperature-resistant gel plugging agent and preparation method and application thereof | |
| CN113265233B (en) | Foam drainage foaming agent for normal-pressure shale gas development and preparation method thereof | |
| CN115785932B (en) | Lactic acid acidification corrosion inhibitor and preparation method thereof | |
| CN118909608A (en) | A chemical flooding agent | |
| CN114517085B (en) | Ultralow surface tension foam discharging agent and preparation method thereof |
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |