Evaluation of sealing characteristics of nano materials CQ-NZC in oil based drilling fluids

doi:10.16085/j.issn.1000-6613.2015.05.035

Chemical Industry and Engineering Progree ›› 2015, Vol. 34 ›› Issue (05): 1395-1400.DOI: 10.16085/j.issn.1000-6613.2015.05.035

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Evaluation of sealing characteristics of nano materials CQ-NZC in oil based drilling fluids

LUO Mina^1,2, AI Jiawei^1,2, CHEN Fu^1,2, CHEN Junbin^1,3, LUO Taotao^1,3

1. Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Chengdu 610500, Sichuan, China;
2. College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, Sichuan, China;
3. Drilling & Production Technology Research Institute, CNPC Sichuan Petroleum, Guanghan 618300, Sichuan, China

Received:2014-12-22 Revised:2015-01-25 Online:2015-05-05 Published:2015-05-05

油基钻井液用纳米材料CQ-NZC的封堵性能评价

罗米娜^1,2, 艾加伟^1,2, 陈馥^1,2, 陈俊斌^1,3, 罗陶涛^1,3

1. 油气田应用化学四川省重点实验室, 四川成都 610500;
2. 西南石油大学化学化工学院, 四川成都 610500;
3. 中国石油川庆钻探工程有限公司钻采工程技术研究院, 四川广汉 618300

通讯作者: 罗米娜(1980—),女,博士,讲师,主要从事功能材料的合成及其在复杂体系中的应用研究.E-mailmnluo@swpu.edu.cn.
作者简介:罗米娜(1980—),女,博士,讲师,主要从事功能材料的合成及其在复杂体系中的应用研究.E-mailmnluo@swpu.edu.cn.

Abstract

Abstract: The sealing characteristics is an important evaluation index of oil-based drilling fluids. Improving the plugging ability of oil based drilling fluids favors hole stability and fast drilling safety. A new method has been established to evaluate the sealing characteristics by using sand core funnel simulating micro-fracture. Experiment results have shown that the addition of nano materials CQ-NZC can make permeability lower and have good performance on plugging. The micro morphology analysis has been used to study the mechanism. The experiment results indicated that CQ-NZC and asphalt plugging agent agglomerated together partly to form hole plugging particles which contributed to the improvement of plugging ability.

Key words: petroleum, oil-based drilling fluid, nanomaterials, emulsions, sealing, performance evaluation

摘要： 封堵性是油基钻井液的一个重要评价指标,提高油基钻井液的封堵性有助于井壁稳定,促进快速安全钻井.本文通过使用砂芯漏斗来模拟页岩的微裂缝,建立了一种新的评价油基钻井液封堵性能的方法,利用该方法对自制的纳米材料CQ-NZC在钻井液封堵性及其与氧化沥青封堵剂的复合作用开展了实验研究.结果表明,CQ-NZC在与沥青类封堵剂复配使用时,能够更好地降低滤失量、提高封堵性能.通过微观形态分析发现,CQ-NZC与沥青类封堵剂可以在一定程度上聚结,形成堵孔粒子,提升了钻井液体系的封堵性能.

关键词: 石油, 油基钻井液, 纳米材料, 乳液, 封堵, 性能评价

CLC Number:

TE254

LUO Mina, AI Jiawei, CHEN Fu, CHEN Junbin, LUO Taotao. Evaluation of sealing characteristics of nano materials CQ-NZC in oil based drilling fluids[J]. Chemical Industry and Engineering Progree, 2015, 34(05): 1395-1400.

罗米娜, 艾加伟, 陈馥, 陈俊斌, 罗陶涛. 油基钻井液用纳米材料CQ-NZC的封堵性能评价[J]. 化工进展, 2015, 34(05): 1395-1400.

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Evaluation of sealing characteristics of nano materials CQ-NZC in oil based drilling fluids

油基钻井液用纳米材料CQ-NZC的封堵性能评价

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