CN108558691B - 一种携带密集电荷的星型化合物及其制备方法 - Google Patents

一种携带密集电荷的星型化合物及其制备方法 Download PDF

Info

Publication number
CN108558691B
CN108558691B CN201810387407.2A CN201810387407A CN108558691B CN 108558691 B CN108558691 B CN 108558691B CN 201810387407 A CN201810387407 A CN 201810387407A CN 108558691 B CN108558691 B CN 108558691B
Authority
CN
China
Prior art keywords
reaction
star
shaped compound
preparation
dense charges
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201810387407.2A
Other languages
English (en)
Other versions
CN108558691A (zh
Inventor
王晨
杨通
辛燕
王霞
杨晓武
费贵强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shaanxi University of Science and Technology
Original Assignee
Shaanxi University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shaanxi University of Science and Technology filed Critical Shaanxi University of Science and Technology
Priority to CN201810387407.2A priority Critical patent/CN108558691B/zh
Publication of CN108558691A publication Critical patent/CN108558691A/zh
Application granted granted Critical
Publication of CN108558691B publication Critical patent/CN108558691B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C229/00Compounds containing amino and carboxyl groups bound to the same carbon skeleton
    • C07C229/02Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton
    • C07C229/04Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated
    • C07C229/06Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated having only one amino and one carboxyl group bound to the carbon skeleton
    • C07C229/10Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated having only one amino and one carboxyl group bound to the carbon skeleton the nitrogen atom of the amino group being further bound to acyclic carbon atoms or to carbon atoms of rings other than six-membered aromatic rings
    • C07C229/16Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated having only one amino and one carboxyl group bound to the carbon skeleton the nitrogen atom of the amino group being further bound to acyclic carbon atoms or to carbon atoms of rings other than six-membered aromatic rings to carbon atoms of hydrocarbon radicals substituted by amino or carboxyl groups, e.g. ethylenediamine-tetra-acetic acid, iminodiacetic acids
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C227/00Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton
    • C07C227/14Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton from compounds containing already amino and carboxyl groups or derivatives thereof
    • C07C227/18Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton from compounds containing already amino and carboxyl groups or derivatives thereof by reactions involving amino or carboxyl groups, e.g. hydrolysis of esters or amides, by formation of halides, salts or esters
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/02Well-drilling compositions
    • C09K8/03Specific additives for general use in well-drilling compositions
    • C09K8/035Organic additives
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/58Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
    • C09K8/584Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific surfactants
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/60Compositions for stimulating production by acting on the underground formation
    • C09K8/62Compositions for forming crevices or fractures
    • C09K8/66Compositions based on water or polar solvents
    • C09K8/68Compositions based on water or polar solvents containing organic compounds
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/60Compositions for stimulating production by acting on the underground formation
    • C09K8/62Compositions for forming crevices or fractures
    • C09K8/72Eroding chemicals, e.g. acids
    • C09K8/74Eroding chemicals, e.g. acids combined with additives added for specific purposes
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2208/00Aspects relating to compositions of drilling or well treatment fluids
    • C09K2208/12Swell inhibition, i.e. using additives to drilling or well treatment fluids for inhibiting clay or shale swelling or disintegrating

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

本发明公开了一种携带密集电荷的星型化合物及其制备方法,该化合物通过以下步骤制备:在装有甲胺(或乙胺)水溶液和酸性催化剂的反应瓶中滴加定量的三羟甲基丙烷‑三(3‑吖丙啶基丙酸酯)反应液进行第一步氮丙啶开环反应;再向反应液中加入定量的3‑氯‑2‑羟丙基‑三甲基氯化铵进行第二步季胺化反应,所得产物为一种携带密集电荷的星型化合物。

Description

一种携带密集电荷的星型化合物及其制备方法
技术领域
本发明涉及多季铵盐阳离子表面活性剂制备技术领域,特别涉及一种携带密集电荷的星型化合物及其制备方法。
背景技术
氮丙啶类交联剂中的氮丙啶环结构存在较大的张力,活性较高,可与胺基、羧基及羟基反应形成具有星型结构或者网状结构的化合物,如何向该类化合物中引入多阳离子季铵盐基团,制备新的化合物应用在油气开采中,是现在研究的难点。
油气藏中存在着如蒙脱石、高岭土、绿泥石等粘土矿物,当他们与不配伍的外来流体接触时,会发生水化膨胀和分散运移而堵塞油气藏通道,使用黏土稳定剂可以防止和减轻粘土膨胀与分散对地层的伤害。目前粘土稳定剂的种类很多,有无机盐类、无机碱类、无机聚合物类、非离子聚合物和阳离子聚合物等,使用最多且效果最好的是阳离子聚合物,特别是季铵盐阳离子聚合物,季铵盐阳离子黏土稳定剂易被黏土优先吸附,会促使黏土晶层间脱水,减少膨胀力,有效抑制黏土水化,且可以嵌入黏土晶层间,阻止水分子进入,降低黏土的水化膨胀作用,由于其在黏土颗粒上吸附牢固,具有长期稳定效果。但是,现有季铵盐类黏土稳定剂存在用量大、防膨率低和对地层伤害大等问题,
发明内容
为了扩展多阳离子季铵盐表面活性剂的种类以及多阳离子季铵盐的数量,本发明以高活性的氮丙啶交联剂与活泼胺基反应形成携带活泼仲胺的星型表面活性剂,再引入携带季铵盐的季铵盐试剂反应,获得一种携带密集电荷的星型化合物。本发明的目的之一在于提供一种携带密集电荷的星型化合物,本发明的目的之二在于提供该化合物的制备方法。
为达到上述目的,本发明采用以下技术方案:
一种携带密集电荷的星型化合物,其结构式为:
Figure GDA0002521191010000021
其中,R1-为-CH3或者-CH2CH3
一种如权利要求1所述的携带密集电荷的星型化合物的制备方法,包括以下步骤:
向甲胺(或乙胺)水溶液和酸性催化剂的中加入三羟甲基丙烷-三(3-吖丙啶基丙酸酯)反应液进行氮丙啶开环反应,在40~70℃反应5~7h;
在弱碱性条件下,向上述反应物中加入3-氯-2-羟丙基-三甲基氯化铵水溶液进行季胺化反应,在50~70℃反应4~8h;反应结束后除去不溶物质,浓缩反应液,用甲苯柱层析法纯化分离出产物,真空干燥至恒重便得产物。
在氮丙啶开环反应中,三羟甲基丙烷-三(3-吖丙啶基丙酸酯)和甲胺(或乙胺)摩尔比为1:3。
在氮丙啶开环反应中,所述的酸性催化剂为质量分数为85%的磷酸水溶液,其用量为原料总质量的1%。
在季胺化反应中,弱碱性条件pH=9~10,反应液用K2CO3调至弱碱性。
在季胺化反应中,3-氯-2-羟丙基-三甲基氯化铵的物质的量是三羟甲基丙烷-三(3-吖丙啶基丙酸酯)的6倍。
一种携带密集电荷的星型化合物在油气开采中作为黏土稳定剂的应用。
作为黏土稳定剂的加入量为总质量的0.2~1%。
本发明相比于现有技术,具有以下优点:
氮丙啶类交联剂中的氮丙啶环结构存在较大的张力,活性较高,可与胺基、羧基及羟基反应形成具有星型结构或者网状结构的化合物,为了向该类化合物中引入多阳离子季铵盐基团,本发明以高活性的氮丙啶交联剂与活泼胺基反应形成具有独立的星型结构,再引入携带季铵盐基团的季胺化试剂反应,获得一种结构新颖的携带密集电荷的星型化合物。这类种携带密集电荷的星型化合物可被广泛应用于制备新材料、杀菌剂、抑制金属腐蚀、织物染整、石油开采等领域。
本发明以高活性的氮丙啶交联剂与活泼胺基反应形成携带活泼仲胺的星型表面活性剂,再引入携带季铵盐的季铵盐试剂反应,获得一种携带密集电荷的星型化合物,为了携带密集电荷的星型化合物的制备提供了一种简单的制备方法。
这种携带密集电荷的黏土稳定剂由于分子中含有十八个季铵盐基团,可以同时多点作用于带负电的黏土颗粒,吸附程度高,从而实现了低用量、高防膨率的目的。
附图说明
图1为本发明的化学结构式;
图2为本发明反应合成路线图。
具体实施方式
如图1和图2所示,本发明的反应方程式为:
Figure GDA0002521191010000041
其中,R1-为-CH3或者-CH2CH3
根据上述反应机理,本发明采用如下技术方案
一种携带密集电荷的星型化合物,该化合物的结构式为:
Figure GDA0002521191010000042
其中,R1-为-CH3或者-CH2CH3
制备上述的一种携带密集电荷的星型化合物,该方法的步骤为:
在装有质量分数为20~70%的甲胺(或乙胺)水溶液和酸性催化剂的反应瓶中滴加三羟甲基丙烷-三(3-吖丙啶基丙酸酯)反应液进行氮丙啶开环反应,其中羟甲基丙烷-三(3-吖丙啶基丙酸酯)和甲胺(或乙胺)的摩尔比为1:3,在40~70℃反应5~7h;再将上述反应液用K2CO3调至碱性(pH=9~10),加入3-氯-2-羟丙基-三甲基氯化铵进行第二步季胺化反应,其中3-氯-2-羟丙基-三甲基氯化铵的物质的量是三羟甲基丙烷-三(3-吖丙啶基丙酸酯)的6倍,在50~70℃反应4~8h;反应结束后除去不溶物质,浓缩反应液,用甲苯柱层析法纯化分离出产物,真空干燥至恒重便得产物。
实施例1
在装有质量分数为20%的甲胺水溶液(23.25g,其中含甲胺4.65g,0.15mol)和酸性催化剂(85%H3PO4,0.25g),升温至40℃,滴加质量分数为70%的三羟甲基丙烷-三(3-吖丙啶基丙酸酯)水溶液(35.42g,其中含三羟甲基丙烷-三(3-吖丙啶基丙酸酯)21.25g,0.05mol),滴加时间为40min。滴加完毕后,升温至50℃反应7h;将上述反应液用K2CO3调至弱碱性(pH=9~10),滴加质量分数为80%的3-氯-2-羟丙基-三甲基氯化铵水溶液(70.50g,其中含3-氯-2-羟丙基-三甲基氯化铵56.40g,0.30mol),滴加时间为60min,在50℃反应8h;反应结束后除去不溶物质,浓缩反应液,用甲苯柱层析法纯化分离出产物,真空干燥至恒重得产物。
实施例1所得产物的结构式为:
Figure GDA0002521191010000061
1H NMR(300MHz,DMSO):δ4.77~4.84(m,24H),3.94(s,6H),3.63~3.68(m,18H),3.25~3.51(m,48H),3.30(s,117H),2.70(t,6H),1.69(m,2H),0.84(t,3H)ppm。
13C NMR(300MHz,DMSO):δ173.2,68.1,65.7,58.4,55.1,50.7,35.7,27.3,22.9,7.1ppm。
实施例2
在装有质量分数为70%的乙胺水溶液(9.54g,其中含乙胺6.75g,0.15mol)和酸性催化剂(85%H3PO4,0.25g),升温至50℃,滴加质量分数为70%的三羟甲基丙烷-三(3-吖丙啶基丙酸酯)水溶液(35.42g,其中含三羟甲基丙烷-三(3-吖丙啶基丙酸酯)21.25g,0.05mol),滴加时间为40min。滴加完毕后,升温至70℃反应5h;将上述反应液用K2CO3调至弱碱性(pH=9~10),滴加质量分数为80%的3-氯-2-羟丙基-三甲基氯化铵水溶液(70.50g,其中含3-氯-2-羟丙基-三甲基氯化铵56.40g,0.30mol),滴加时间为60min,在70℃反应4h;反应结束后除去不溶物质,浓缩反应液,用甲苯柱层析法纯化分离出产物,真空干燥至恒重便得产物。
实施例2所得产物的结构式为:
Figure GDA0002521191010000071
1H NMR(300MHz,DMSO):δ4.84(m,12H),4.77(d,12H),3.63~3.68(m,18H),3.25~3.51(m,54H),3.30(s,108H),2.69(t,6H),1.69(m,2H),1.25(t,9H),0.84(t,3H)ppm。
13C NMR(300MHz,DMSO):δ173.1,72.5,65.6,58.4,55.6,35.7,27.3,22.9,7.7~8.3ppm。
黏土稳定剂的性能表征
(1)黏土稳定剂的防膨率和耐水洗率测试
参照标准SY/T 5971-2016《油气田压裂酸化及注水用粘土稳定剂性能评价方法》和Q/SH 0053-2010《粘土稳定剂技术要求》中离心法法,通过测定钠膨润土在黏土稳定剂溶液和蒸馏水中的膨胀增量评价防膨率。测定了实施例1和实施例2的黏土稳定剂在水中的防膨率和耐水洗率。结果如表1所示。
表1黏土稳定剂的防膨率和耐水洗率
Figure GDA0002521191010000072
Figure GDA0002521191010000081
由表可知,本发明的的黏土稳定剂在0.2%的加量下,在清水压裂液中的防膨率均高于85%,耐水洗率均超过90%;黏土稳定剂在0.5%的加量下,在清水压裂液中的防膨率均高于90%,耐水洗率均超过94%;对照无机盐类黏土稳定剂(氯化钾和氯化铵),在2.0%的加量下,其防膨率均低于70%。
(2)配伍性实验
对实施例1和实施例2的黏土稳定剂与压裂液基液以及酸液进行配伍性观察,结果如表2所示。
表2黏土稳定剂的配伍性实验
Figure GDA0002521191010000082
Figure GDA0002521191010000091
从表2可以看出,本发明的黏土稳定剂与压裂液基液以及酸液混合,无分层、沉淀和悬浮现象产生,配伍性良好。
以上内容是对本发明所作的进一步详细说明,不能认定本发明的具体实施方式仅限于此,对于本发明所属技术领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干简单的推演或替换,都应当视为属于本发明由所提交的权利要求书确定保护范围。

Claims (3)

1.一种携带密集电荷的星型化合物的制备方法,其特征在于,星型化合物的结构式为:
Figure FDA0002521191000000011
其中,R1-为-CH3或者-CH2CH3
所述星型化合物的制备方法,包括以下步骤:
向甲胺或乙胺水溶液和酸性催化剂中加入三羟甲基丙烷-三(3-吖丙啶基丙酸酯)反应液进行氮丙啶开环反应,在40~70℃反应5~7h;
在弱碱性条件下,向上述反应物中加入3-氯-2-羟丙基-三甲基氯化铵水溶液进行季胺化反应,在50~70℃反应4~8h;反应结束后除去不溶物质,浓缩反应液,用甲苯柱层析法纯化分离出产物,真空干燥至恒重便得产物;
在氮丙啶开环反应中,三羟甲基丙烷-三(3-吖丙啶基丙酸酯)和甲胺或乙胺摩尔比为1:3。
2.根据权利要求1所述的一种携带密集电荷的星型化合物的制备方法,其特征在于:在氮丙啶开环反应中,所述的酸性催化剂为质量分数为85%的磷酸水溶液,其用量为原料总质量的1%。
3.根据权利要求1所述的一种携带密集电荷的星型化合物的制备方法,其特征在于,在季胺化反应中,弱碱性条件pH=9~10,反应液用K2CO3调至弱碱性。
CN201810387407.2A 2018-04-26 2018-04-26 一种携带密集电荷的星型化合物及其制备方法 Active CN108558691B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810387407.2A CN108558691B (zh) 2018-04-26 2018-04-26 一种携带密集电荷的星型化合物及其制备方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810387407.2A CN108558691B (zh) 2018-04-26 2018-04-26 一种携带密集电荷的星型化合物及其制备方法

Publications (2)

Publication Number Publication Date
CN108558691A CN108558691A (zh) 2018-09-21
CN108558691B true CN108558691B (zh) 2020-12-25

Family

ID=63536997

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810387407.2A Active CN108558691B (zh) 2018-04-26 2018-04-26 一种携带密集电荷的星型化合物及其制备方法

Country Status (1)

Country Link
CN (1) CN108558691B (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111944509B (zh) * 2020-08-26 2022-05-03 肯特催化材料股份有限公司 一种页岩气压裂用防膨剂

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102942493A (zh) * 2012-11-09 2013-02-27 西南石油大学 一种三联季铵盐型阳离子表面活性剂及制备方法
WO2016172436A1 (en) * 2015-04-23 2016-10-27 Temple University-Of The Commonwealth System Of Higher Education Polycationic amphiphiles and polymers thereof as antimicrobial agents and methods using same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102942493A (zh) * 2012-11-09 2013-02-27 西南石油大学 一种三联季铵盐型阳离子表面活性剂及制备方法
WO2016172436A1 (en) * 2015-04-23 2016-10-27 Temple University-Of The Commonwealth System Of Higher Education Polycationic amphiphiles and polymers thereof as antimicrobial agents and methods using same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
含三个硬脂酰胺基的树枝状季铵盐的制备;徐冬梅 等;《化学研究与应用》;20060630;第18卷(第6期);第603-606页 *

Also Published As

Publication number Publication date
CN108558691A (zh) 2018-09-21

Similar Documents

Publication Publication Date Title
CN106519254B (zh) 一种树枝状季铵盐页岩抑制剂及其制备方法与应用
CN112457838B (zh) 一种新型耐酸耐盐缩膨剂及其制备方法
CN105670578B (zh) 一种硅胺基钻井液及其制备方法
CN103539902B (zh) 一种促进地层粘土改性的耐高温缩膨体系的制备方法
CN102838583A (zh) 一种功能化季鏻盐离子液体制备环状碳酸酯的方法
CN107312507B (zh) 一种黏土稳定剂及其应用
CN108558691B (zh) 一种携带密集电荷的星型化合物及其制备方法
CN106497528A (zh) 一种钻井液用页岩抑制剂及其制备方法
CN108543498B (zh) 一种携带密集电荷的阳离子表面活性剂及其制备方法和应用
CN106540631B (zh) 一种含酯基的阳离子双子表面活性剂及其制备方法和应用
US2768089A (en) Clay soil improved by an alkylene polyamine
US4040258A (en) Method of consolidating particles
CN108440323B (zh) 一种星型多阳离子基表面活性剂及其制备方法和应用
CN108485641B (zh) 一种星型磺酸基两性离子表面活性剂作为起泡剂的应用
CN108546235B (zh) 一种星型多阳离子基化合物及其制备方法和应用
CN109912428B (zh) N-烷基化三胺基星形超低分子抑制剂的制备方法
CN108977190B (zh) 一种小分子液体防膨剂、压裂用粘土防膨剂及制备方法
CN113845892B (zh) 一种长效保护储层和提高储层渗透率的方法
CN102851016B (zh) 一种驱油用羧基甜菜碱两性表面活性剂及其制备方法
CN110627746B (zh) 一种蓖麻油基季铵盐抗泥剂及其制备方法
CN113731297A (zh) 一种酰胺基磺酸盐双子表面活性剂及其制备方法和应用
CN117487041B (zh) 一种耐温粘土稳定剂及其制备方法
CN112812290B (zh) 耐碱性表面活性剂及其制备方法
CN108440450B (zh) 一种聚乙二醇二氮杂环化合物、制备方法及应用
CN102226079A (zh) 注水井用液体防膨驱油剂及其生产方法和使用方法

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant