CN106008804A - 一种后交联法制备油井水泥降失水剂的方法 - Google Patents

一种后交联法制备油井水泥降失水剂的方法 Download PDF

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CN106008804A
CN106008804A CN201610386592.4A CN201610386592A CN106008804A CN 106008804 A CN106008804 A CN 106008804A CN 201610386592 A CN201610386592 A CN 201610386592A CN 106008804 A CN106008804 A CN 106008804A
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王琪宇
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/52Amides or imides
    • C08F220/54Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
    • C08F220/58Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing oxygen in addition to the carbonamido oxygen, e.g. N-methylolacrylamide, N-(meth)acryloylmorpholine
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    • C09K8/00Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/42Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
    • C09K8/46Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement
    • C09K8/467Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement containing additives for specific purposes
    • C09K8/487Fluid loss control additives; Additives for reducing or preventing circulation loss
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C08F220/00Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/52Amides or imides
    • C08F220/54Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
    • C08F220/58Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing oxygen in addition to the carbonamido oxygen, e.g. N-methylolacrylamide, N-(meth)acryloylmorpholine
    • C08F220/585Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing oxygen in addition to the carbonamido oxygen, e.g. N-methylolacrylamide, N-(meth)acryloylmorpholine and containing other heteroatoms, e.g. 2-acrylamido-2-methylpropane sulfonic acid [AMPS]

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Abstract

本发明涉及一种后交联法制备油井水泥降失水剂的方法,2‑丙烯酰胺基‑2‑甲基丙磺酸(AMPS),二乙烯基苯、1‑乙烯基‑3‑乙基咪唑双三氟甲烷磺酰亚胺盐,双(三羰基环戊二烯钼)进行聚合,二乙烯基苯的悬挂双键进一步进行后交联反应,再经酰化得到产品。

Description

一种后交联法制备油井水泥降失水剂的方法
技术领域
本发明涉及一种油井助剂的制备方法,特别是一种后交联法制备油井水泥降失水剂的方法。
背景技术
油井水泥降失水剂是一种由高分子聚合物组成的复合材料,在水泥浆中吸附于水泥颗粒表面并互相交联,形成贯穿整个水泥浆体系的交联网络,在水泥浆与地层之间存在一定压差时,于界面处形成致密的高分子材料保护膜,保证水泥浆具有低滤失量。该产品可有效降低油井水泥浆的失水量,并使其流动性、防漏、防气窜能力得到很好的改善,保证了高质量的固井要求。
CN101698794A涉及一种耐高温抗盐油井水泥降失水剂,生产原料包括AMPS(2-丙烯酰胺-2-甲基丙磺酸)、丙烯酸、丙烯酰胺、氢氧化钠、过硫酸钾和水,其质量份数比为AMPS(2-丙烯酰胺-2-甲基丙磺酸)∶丙烯酸∶丙烯酰胺∶氢氧化钠∶过硫酸钾∶水=32-36∶2.5-3∶12-15∶4-6∶0.3-0.5∶120。按其配方生产的耐高温油井水泥降失剂适用于API标准的各级水泥,在210℃高温的泥浆体系下加量为总泥浆体积的5%-8%,固井时的失水量可有效控制在50ml以内。CN103881670A涉及一种抗高温油井水泥降失水剂,其原料包括丙烯酰胺(AM)、丙烯酸(AA)、和2-丙烯酰胺-2-甲基丙磺酸(AMPS),其特征在于原料还包括:甲基丙烯酸羟乙酯(PEMA)、苯乙烯磺酸钠(SS)。
以上公知技术将共聚物作为降失水剂应用于油井水泥。会出现抗剪切性差,泵送机械降解严重的缺点,影响了使用效果。
发明内容
针对现有技术的不足,本发明提供了一种后交联法制备油井水泥降失水剂的方法。
所述应用于一种后交联法制备油井水泥降失水剂的方法,包括以下步骤:
1)聚合
在反应釜中,按重量份计加入100份2-丙烯酰胺基-2-甲基丙磺酸(AMPS),50-100份二乙烯基苯、1-5份1-乙烯基-3-乙基咪唑双三氟甲烷磺酰亚胺盐,0.1-0.5份双(三羰基环戊二烯钼),1000-3000份水,1-4份聚乙烯醇,0.5-2份过氧化苯甲酰,在80℃-95℃反应5-12h,过滤,烘干后得到中间产物1,
2)后处理
按重量份计,将100份中间产物1溶胀于200-500份二氯乙烷溶剂中,加入5-20份氯化锌;80-120℃反应5-10h,然后加入1-10份4-氟苯甲酰甲基溴反应,加入5-20份三氯化铁,在20-50℃反应5-15h,过滤烘干,得到产品。
2-丙烯酰胺基-2-甲基丙磺酸(AMPS),双(三羰基环戊二烯钼)为市售产品。
4-氟苯甲酰甲基溴可使用市售产品,如北京偶合科技有限生产的产品。
1-乙烯基-3-乙基咪唑双三氟甲烷磺酰亚胺盐可使用市售产品,如中国科学院兰州化学物理研究所生产的产品。
本发明的有益效果:
本发明在聚合物骨架中引入1-乙烯基-3-乙基咪唑双三氟甲烷磺酰亚胺盐,含氟基团的引入,使树脂骨架耐腐蚀性增强,球体表面受到保护,悬挂双键后交联缓解了泵送机械降解的问题,磺酰亚胺基团提高了耐温性能;氟苯甲酰基团可以提高抗剪切性能。总之从指标上表现为降低了油井水泥浆吸水率,提高了抗压强度。
具体实施方式
以下实施例仅仅是进一步说明本发明,并不是限制本发明保护的范围。
实施例1
1)聚合
在3000L反应釜中,加入100Kg2-丙烯酰胺基-2-甲基丙磺酸(AMPS),70Kg二乙烯基苯、3Kg1-乙烯基-3-乙基咪唑双三氟甲烷磺酰亚胺盐,0.2Kg双(三羰基环戊二烯钼),2000Kg水,2Kg聚乙烯醇,1Kg过氧化苯甲酰,在90℃反应7h,过滤,烘干后得到中间产物1,
2)后处理
在1000L反应釜中,加入100Kg中间产物1,溶胀于300Kg二氯乙烷溶剂中,加入10Kg氯化锌; 90℃反应7h,加入5Kg4-氟苯甲酰甲基溴,加入12Kg三氯化铁,在40℃的温度下反应10h,过滤烘干,得到产品编号M-1。
实施例2
1)聚合
在3000L反应釜中,加入100Kg2-丙烯酰胺基-2-甲基丙磺酸(AMPS),50Kg二乙烯基苯、1Kg1-乙烯基-3-乙基咪唑双三氟甲烷磺酰亚胺盐,0.1Kg双(三羰基环戊二烯钼),1000Kg水,1Kg聚乙烯醇,0.5Kg过氧化苯甲酰,在80℃反应5h,过滤,烘干后得到中间产物1,
2)后处理
在1000L反应釜中,加入100Kg中间产物1,溶胀于200Kg二氯乙烷溶剂中,加入5Kg氯化锌; 80℃反应5h,加入1Kg4-氟苯甲酰甲基溴,加入5Kg三氯化铁,在20℃的温度下反应5h,过滤烘干,得到产品编号M-2。
实施例3
1)聚合
在3000L反应釜中,加入100Kg2-丙烯酰胺基-2-甲基丙磺酸(AMPS),100Kg二乙烯基苯、5Kg1-乙烯基-3-乙基咪唑双三氟甲烷磺酰亚胺盐,0.5Kg双(三羰基环戊二烯钼),3000Kg水,4Kg聚乙烯醇,2Kg过氧化苯甲酰,在95℃反应12h,过滤,烘干后得到中间产物1,
2)后处理
在1000L反应釜中,加入100Kg中间产物1,溶胀于500Kg二氯乙烷溶剂中,加入20Kg氯化锌;120℃反应10h,加入10Kg4-氟苯甲酰甲基溴,加入20Kg三氯化铁,在50℃的温度下反应15h,过滤烘干,得到产品编号M-3。
对比例1
步骤1不加入1-乙烯基-3-乙基咪唑双三氟甲烷磺酰亚胺盐,其它同实施例1。得到产品编号M-4。
对比例2
不加入双(三羰基环戊二烯钼),其它同实施例1。所得产品编号为M-5。
对比例3
不加入4-氟苯甲酰甲基溴,其它同实施例1。所得产品编号为M-6。
对比例4
不进行步骤2后处理,其它同实施例1。所得产品编号为M-7。
实施例4
按GB/T 19139-2012 油井水泥试验方法,将实施例1-3以及对比例1-4的降失水剂用于油井水泥浆吸水率,抗压强度的检测,结果见下表:
产品编号 吸水率% 24h抗压强度MPa
M-1 0.1 30
M-2 0.2 29
M-3 0.1 32
M-4 0.6 20
M-5 0.5 22
M-6 0.8 20
M-7 1.4 16
以上仅为本发明的具体实施例,但本发明的技术特征并不局限于此。任何以本发明为基础,为解决基本相同的技术问题,实现基本相同的技术效果,所作出的简单变化、等同替换或者修饰等,皆涵盖于本发明的保护范围之中。

Claims (2)

1.一种后交联法制备油井水泥降失水剂的方法,其特征在于包括以下步骤:
1)聚合
在反应釜中,按重量份计加入100份2-丙烯酰胺基-2-甲基丙磺酸(AMPS),50-100份二乙烯基苯、1-5份1-乙烯基-3-乙基咪唑双三氟甲烷磺酰亚胺盐,0.1-0.5份双(三羰基环戊二烯钼),1000-3000份水,1-4份聚乙烯醇,0.5-2份过氧化苯甲酰,在80℃-95℃反应5-12h,过滤,烘干后得到中间产物1;
2)后处理
按重量份计,将100份中间产物1溶胀于200-500份二氯乙烷溶剂中,加入5-20份氯化锌;80-120℃反应5-10h,然后加入1-10份酰化剂反应,加入5-20份三氯化铁,在20-50℃反应5-15h,过滤烘干,得到产品。
2.根据权利要求1所述的一种后交联法制备油井水泥降失水剂的方法,其特征在于所述的酰化剂为4-氟苯甲酰甲基溴。
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CN112279963A (zh) * 2020-12-30 2021-01-29 东营聚星石油科技有限公司 耐温抗盐多元共聚预交联凝胶颗粒及其制备方法和应用

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CN102229797A (zh) * 2011-05-09 2011-11-02 大庆石油管理局 一种耐温达200℃的降失水剂
CN104263331A (zh) * 2014-09-24 2015-01-07 中国石油大学(华东) 一种新型高温低密度水泥浆体系
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US5340860A (en) * 1992-10-30 1994-08-23 Halliburton Company Low fluid loss cement compositions, fluid loss reducing additives and methods
CN1803967A (zh) * 2005-12-02 2006-07-19 大庆石油管理局 深井低密度水泥浆
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Address after: 432000 Xiaogan province hi tech Zone, the sound of the village of Southern District convenience Road, building No. 5, building 91, No.

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