聚丙烯酰胺类交联酸破胶新方法

李沁; 李根生; 伊向艺; 卢渊; 陈文玲

doi:10.11911/syztjs.201405018

聚丙烯酰胺类交联酸破胶新方法

1.
油气资源与探测国家重点实验室(中国石油大学(北京)), 北京 102249;
2.
油气藏地质及开发工程国家重点实验室(成都理工大学), 四川成都 610059

基金项目:

国家自然科学基金创新研究群体项目"复杂油气井钻井与完井基础研究"（编号：51221003）和国家自然科学基金"高粘度酸液酸岩反应动力学机理研究"（编号：51274050）资助。

详细信息

作者简介:
李沁（1985—），男，湖南浏阳人，2007年毕业于成都理工大学石油工程专业，2010年获成都理工大学油气田开发工程专业硕士学位，2013年获成都理工大学油气田开发工程专业博士学位，中国石油大学（北京）石油与天然气工程学科博士后流动站在站博士后。

中图分类号: TE357.1⁺2
计量
- 文章访问数: 2920
- HTML全文浏览量: 70
- PDF下载量: 3705
出版历程
- 收稿日期: 2014-02-17
- 修回日期: 2014-05-25
- 刊出日期: 1899-12-31

New Method of Polyacrylamide Crosslinked Acid Gel-Breaking

1.
State Key Laboratory of Petroleum Resources and Prospecting(China University of Petroleum(Beijing)), Beijing, 102249, China;
2.
State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation(Chengdu University of Technology), Chengdu, Sichuan, 610059, China

摘要

摘要: 聚丙烯酰胺类交联酸已广泛应用于高温深井地层酸压改造中，提高其破胶效率有利于降低地层伤害和提高增产效果。通过室内试验分析了交联酸中酸的加量、温度以及破胶剂加量对交联酸破胶效果的影响，利用螯合剂络合金属离子方法，对交联酸破胶效果进行了优化。结果表明，当温度小于60 ℃、酸的加量大于15%时，交联酸的黏度大于400 mPa·s，不发生破胶；当交联酸中酸的加量为20%时，过硫酸铵加量由0.1%增至0.6%对破胶效果影响不大；温度为90 ℃时，交联酸的黏度在10 min后降至5 mPa·s，残渣含量1 470 mg/L，破胶不均匀。对比不同破胶方式下的破胶效果可知，交联酸中加入0.1%EDTA和0.1%胶囊破胶剂，60 min后其黏度降至8 mPa·s，残渣含量387 mg/L，破胶效果好。这表明，应用胶囊破胶剂和EDTA（螯合剂）的组合破胶方式，可延缓破胶剂有效成分的释放速度和降低交联酸的黏度，达到改善交联酸破胶效果的目的。
- 聚丙烯酰胺 /
- 交联酸 /
- 破胶剂 /
- 螯合剂
Abstract: Polyacrylamide crosslinked acid has been widely used in the acid fracturing in deep high temperture wells.The gel-breaking is to reduce the strata damage and to improve the effects of stimulation.Through laboratory tests,acid amount,temperature and gel breaker amount were analyzed for their effects on crosslinked acid gel breaking.Using the method of complexing metal ion in chelating agent,the crosslinked acid gel breaking effect was optimized.The results showed that no gel breaking occurred when temperature was less than 60 ℃,the acid amount was greater than 15%,and crosslinked acid viscosity was higher than 400 mPa·s;gel-breaking performance was not affected significantly when the acid amount was 20% and the mass fraction of ammonium persulfate increased from 0.1% to 0.6%,gel-breaking was uneven when the temperature was 90 ℃,crosslinked acid viscosity dropped to 5 mPa·s after 10 min,and the residue content was 1,470 mg/L.It indicated that the viscosity of crosslinked acid fell to 8 mPa·s after 60 min when 0.1% EDTA and 0.1% capsule breaker were added and the residue content was 387 mg/L,which led to improved gel breaking effect.The results showed that the combination of capsule breaker and EDTA(chelating agent)in the crosslinked acid system could delay the release rate of effective components in the gel-breaker and reduce the crosslinked acid viscosity,and finally improve effect of crosslinked acid gel-breaking.
- polyacrylamide /
- crosslinked acid /
- gel-breaker /
- chelating agent

HTML全文

参考文献(12)

[1]	伊向艺,卢渊,宋毅,等.靖边气田白云岩储层交联酸酸压技术实践[J].油气地质与采收率,2008,15(6):92-94. Yi Xiangyi,Lu Yuan,Song Yi,et al.Acid fracturing technology practice of cross-linking acid fluid in dolomite reservoir of Jingbian Gasfield[J].Petroleum Geology and Recovery Efficiency,2008,15(6):92-94.
[2]	伊向艺.碳酸盐岩储层交联酸酸压技术研究与应用[D].成都:成都理工大学,2006. Yi Xiangyi.Research and application of acid fracturing technology of crosslinked acid fluid on carbonate reservoirs[D].Chengdu:Chengdu University of Technology,2006.
[3]	赵辉,戴彩丽,梁利,等.煤层气井用非离子聚丙烯酰胺锆冻胶压裂液优选[J].石油钻探技术,2012,40(1):64-68. Zhao Hui,Dai Caili,Liang Li,et al.Research on nonionic polyacrylamide zirconium gel fracturing fluids in coalbed methane gas wells[J].Petroleum Drilling Techniques,2012,40(1): 64-68.
[4]	王斌,张健强,郎建军,等.新疆油田石炭系油藏交联酸携砂压裂技术应用[J].钻采工艺,2010,33(6):56-60. Wang Bin,Zhang Jianqiang,Lang Jianjun,et al.Application of cross-linking acid solid-carrying fracturing technology in carboniferous reservoir of Xinjiang Oilfield[J].Drilling Produc- tion Technology,2010,33(6):56-60.
[5]	王海涛,伊向艺,卢渊,等.交联酸携砂酸压在白云岩气藏改造中的应用[J].油气井测试,2010,19(5):58-61. Wang Haitao,Yi Xiangyi,Lu Yuan,et al.Application of acidizing and fracturing with crosslinking acid carrying sand in stimulation treatment for dolomite gas reservoirs[J].Well Testing,2010,19(5):58-61.
[6]	白建文,胡子见,侯东红,等.交联酸携砂压裂工艺在碳酸盐岩储层的应用[J].石油钻采工艺,2009,31(5):116-118,128. Bai Jianwen,Hu Zijian,Hou Donghong,et al.Application of cross-linked acid-carrying sand fracturing technology to carbonate reservoirs[J].Oil Drilling Production Technology,2009,31(5):116-118,128.
[7]	丁云宏,程兴生,王永辉,等.深井超深井碳酸盐岩储层深度改造技术:以塔里木油田为例[J].天然气工业,2009,29(9):81-84,140-141. Ding Yunhong,Cheng Xingsheng,Wang Yonghui,et al.The intensive stimulation technologies of carbonate reservoirs in deep and ultra-deep wells:a case study of the Tarim Oilfield[J].Natural Gas Industry,2009,29(9):81-84,140-141.
[8]	杜宝中,任锰钢,宣雨.微胶囊缓释破胶剂MEB-1的制备及性能[J].油田化学,2009,26(2):142-144. Du Baozhong,Ren Menggang,Xuan Yu.Preparation and performance properties of microencapsulated slow release gel breaker MEB-1[J].Oilfield Chemistry,2009,26(2):142-144.
[9]	余渝,杨兵,何红梅.一种测定过硫酸铵胶囊破胶剂释放率的新方法[J].钻井液与完井液,2008,25(6):56-57. Yu Yu,Yang Bing,He Hongmei.A new method for testing the release rate of capsule ammonium persulphate gel breaker[J].Drilling Fluid Completion Fluid,2008,25(6):56-57.
[10]	涂云,牛亚斌,刘璞,等.微胶囊缓释破胶剂的室内研制[J].油田化学,1997,14(3):213-217. Tu Yun,Niu Yabin,Liu Pu,et al.Laboratory preparation of microencapsulated slow release gel breaker[J].Oilfield Chemistry,1997,14(3):213-217.
[11]	赵福麟.油田化学[M].东营:石油大学出版社,2000. Zhao Fulin.Oilfield chemistry[M].Dongying:Petroleum University Press,2000.
[12]	蔡宏伟,王志花.分析化学[M].北京:化学工业出版社,2010. Cai Hongwei,Wang Zhihua.Analytical chemistry[M].Beijing:Chemical Industry Press,2010.

施引文献(10)

期刊类型引用(4)

1.	沈园园，王在明，朱宽亮，吴艳. 溶胶-凝胶法制备核壳结构的延迟破胶剂. 钻井液与完井液. 2020(01): 121-126 . 百度学术
2.	巩锦程，王彦玲，罗明良，李强，汤龙皓，梁雷. 交联酸压裂液体系研究进展及展望. 应用化工. 2020(08): 2058-2062 . 百度学术
3.	王丽伟，石阳，高莹，韩秀玲，王燕. 我国油气藏增产酸液体系的发展历程及进展. 河南化工. 2019(07): 3-6 . 百度学术
4.	鲁晓华，程立，廖锐全，张慢来，李振. 新型冻胶封隔材料的制备及性能. 油田化学. 2017(04): 576-580+609 . 百度学术

其他类型引用(6)

资源附件(0)

计量

文章访问数: 2920
HTML全文浏览量: 70
PDF下载量: 3705
被引次数: 10

聚丙烯酰胺类交联酸破胶新方法

计量

出版历程

New Method of Polyacrylamide Crosslinked Acid Gel-Breaking

期刊类型引用(4)

其他类型引用(6)

计量

出版历程

目录