CN101974320B - 用于钻井液的润湿反转表面活性剂 - Google Patents

用于钻井液的润湿反转表面活性剂 Download PDF

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CN101974320B
CN101974320B CN 201010274110 CN201010274110A CN101974320B CN 101974320 B CN101974320 B CN 101974320B CN 201010274110 CN201010274110 CN 201010274110 CN 201010274110 A CN201010274110 A CN 201010274110A CN 101974320 B CN101974320 B CN 101974320B
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wetting reversal
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water
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CN101974320A (zh
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王刚毅
何纶
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Sichuan shangzhideng New Material Technology Co., Ltd
Sichuan Zhengrong Industrial Co.,Ltd.
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Abstract

一种用于钻井液的润湿反转表面活性剂,其特征在于:按重量百分比该润湿反转表面活性剂由以下成分制成:十二烷基三甲基溴化铵10%,重油15%,脂肪酸20%,水55%,本发明对钻井液性能没有影响,且本发明带有正电荷可以与带有负电荷的油井周围的亲水岩层相互吸引,通过阳离子表面活性剂粘接在岩芯上,在其表面覆盖一层憎水亲油基团,使岩层由亲水性的反转为亲油憎水岩层,达到增油阻水的目的。

Description

用于钻井液的润湿反转表面活性剂
技术领域
本发明涉及一种用于钻井液的润湿反转表面活性剂。
背景技术
随着钻井的进行,地层中的亲水性钻屑不断侵污油基钻井液,大量亲水性物质的存在,导致钻井液流变性控制困难,钻井液滤失量变大,破乳电压大幅度下降。同时,在油井的钻井、完井、生产和增产处理过程中,水在井壁聚集,造成水堵,即降低了原油的渗透率,也就是阻碍了原油从地层流向油井,降低油井产量,同时浸泡井壁,极易出现井壁失稳容易造成油井塌陷等事故。
发明内容
鉴于上述不足之处,本发明的目的在于提供一种与各类钻井液的配伍性、相容性好,对钻井液流变性无影响的能在油井壁憎水亲油,从而形成一种保护膜,增油降水用于用于钻井液的润湿反转表面活性剂。
为了达到上述目的,本发明采用了以下技术方案:
鉴于上述不足之处,本发明的目的在于提供一种来源广、价格低、高温下亲水性强,与各类水基钻井液的配伍性、相容性好,对钻井液流变性无影响的用于水基钻井液的润湿反转表面活性剂。
为了达到上述目的,本发明的采用了以下技术方案:一种用于钻井液的润湿反转表面活性剂,按重量百分比该润湿反转表面活性剂由以下成分制成:
十二烷基三甲基溴化铵  10%
重油   15%
脂肪酸 20%
水     55%
制备该用于钻井液的润湿反转表面活性剂的方法为:按上述配方量依次将水和十二烷基三甲基溴化铵加入转动的高速搅拌釜中,然后加入重油和脂肪酸,搅拌60分钟,出料。
本发明带有正电荷可以与带有负电荷的油井周围的亲水岩层相互吸引,通过阳离子表面活性剂粘接在岩芯上,在其表面覆盖一层憎水亲油基团,使岩层由亲水性的反转为亲油憎水岩层,达到增油阻水的目的。
本发明对钻进液性能的影响:
表1钻井液的组成:
  海水m3   0.72
  KOHkg/m3   5.4
  石灰kg/m3   7.4
  滤失控制1kg/m3   5.3
  滤失控制3kg/m3   14.8
  增粉/悬浮kg/m3   3.6
  Fe聚糖化合物kg/m3   7.7
  碱控制kg/m3   3.9
  分散剂kg/m3   1.3
  杀菌剂kg/m3   3.6
  重晶石kg/m3   920
表2本发明对钻井液性能的影响:
Figure BSA00000259350000021
注:钻井液经200℃陈化12h后,在50℃下测定性能。
实验结果表明:本发明加入钻井液中有利于钻井液性能的控制,使钻井液的稳定性提高,破乳电压明显增大,钻井液的滤失量进一步的下降。由表中数据可见,在钻井液中加入本发明使钻井液的表观粘度AV、塑性粘度PV及切力(YP和GeL10″)具有下降的趋势。因此,本发明与钻井液的配伍性良好有利于钻井液各种性能的调控。
本发明的有益效果在于:将本发明加人钻井液中后,本发明带有正电荷可以与带有负电荷的油井周围的亲水岩层相互吸引,通过阳离子表面活性剂粘接在岩芯上,在其表面覆盖一层憎水亲油基团,使岩层由亲水性的反转为亲油憎水岩层,达到增油阻水的目的。本发明与各类油基钻井液和水基钻井液的配伍性、相容性好,对钻井液流变性无影响,并具有一定的降滤失作用。本发明无荧光,对地质录井无干扰。
具体实施方式
下面将结合实施例对本发明作进一步的说明;
一种用于钻井液的润湿反转表面活性剂,按重量百分比该润湿反转表而活性剂由以下成分制成:
十二烷基三甲基溴化铵 10%
重油 15%
脂肪酸 20%
水 55%
制备该用于钻井液的润湿反转表面活性剂的方法为:按上述配方量依次将水和十二烷基三甲基溴化铵加入转动的高速搅拌釜中,然后加入重油和脂肪酸,搅拌60分钟,出料。

Claims (2)

1.一种用于钻井液的润湿反转表面活性剂,其特征在于:按重量百分比该润湿反转表面活性剂由以下成分制成:
十二烷基三甲基溴化铵10%
重油15%
脂肪酸20%
水55%。
2.制备权利要求1所述的用于钻井液的润湿反转表面活性剂方法,其特征在于该方法包括:按上述配方量依次将水和十二烷基三甲基溴化铵加入转动的高速搅拌釜中,然后加入重油和脂肪酸,搅拌60分钟,出料。
CN 201010274110 2010-09-07 2010-09-07 用于钻井液的润湿反转表面活性剂 Active CN101974320B (zh)

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CN103820085B (zh) * 2012-11-19 2016-07-06 北京宝沃石油技术有限责任公司 一种钻井液用油层保护剂及其生产方法
CN111073357B (zh) * 2019-12-10 2020-11-27 中国地质大学(武汉) 一种用于亲水性岩芯表面的透明超疏水涂层的制备方法
CN114426827A (zh) * 2020-09-09 2022-05-03 中国石油化工股份有限公司 一种润湿反转剂及其制备方法和应用

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5042580A (en) * 1990-07-11 1991-08-27 Mobil Oil Corporation Oil recovery process for use in fractured reservoirs
CN101215461A (zh) * 2008-01-04 2008-07-09 中国海洋石油总公司 全油合成基钻井液

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5042580A (en) * 1990-07-11 1991-08-27 Mobil Oil Corporation Oil recovery process for use in fractured reservoirs
CN101215461A (zh) * 2008-01-04 2008-07-09 中国海洋石油总公司 全油合成基钻井液

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