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Progress in the application of graphene material in oilfield chemistry:A review

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Petroleum 2024年第2期10卷 175-190页

作者： Jinsheng Sun Yuanwei Sun Yong Lai Li Li Gang Yang kaihe lv Taifeng Zhang Xianfa Zhang Zonglun Wang Zhe Xu Zhiwen Dai Jingping Liu School of Petroleum Engineering China University of Petroleum(East China)Qingdao266580China CNPC Engineering Technology R&D Company Limited Changping10206China Nanchong Vocational and Technical College Nanchong637131China Oil&Gas Technology Research Institute of Changqing Oilfield Company Xi'an710000China CNPC Greatwall Drilling Fluids Company Panjin124000China

Graphene is a single atom thick crystal composed of carbon *** is the lightest,thinnest,strongest material that conducts heat and electricity well *** terms of application,by introducing oxygen-containing groups,graphene can be well dispersed in solvents,can be chemically modified and functionalized,or connected with other electroactive substances through covalent bond or non-covalent bond to form composite materials,which is conducive to further processing and *** application of graphene in oilfield chemistry started late,but developed *** has played an active role in drilling fluid,cementing fluid,fracturing fluid,displacement fluid and other oilfield working *** can enhance the temperature and salt resistance of working fluid and improve the effect of working *** this paper,several directions of graphene applications in oilfield chemistry,such as modified graphene,graphene copolymers and graphene nanoparticles,are reviewed in detail from the synthesis methods,action mechanisms and effects of graphene and its derivatives,and the frontier cases at this stage are *** the basis of the existing research,suggestions for the development direction of graphene materials in oilfield chemistry are given for a variety of graphene materials,aiming to provide guidance for the application of graphene in oilfield chemistry.

关键词： Oilfield chemistry Graphene Action mechanism Application Prospect

Fabrication of a Hydrophobic Hierarchical Surface on Shale Using Modified Nano-SiO_(2)for Strengthening the Wellbore Wall in Drilling Engineering

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Engineering 2022年第4期8卷 101-110页

作者： Xianbin Huang Jinsheng Sun He Li Ren Wang kaihe lv Haichao Li Key Laboratory of Unconventional Oil and Gas Development(China University of Petroleum(East China)) Ministry of EducationQingdao 266580China School of Petroleum Engineering China University of Petroleum(East China)Qingdao 266580China CNPC Engineering Technology R&D Co. Ltd.Beijing 102206China

Wellbore stability is essential for safe and efficient drilling during oil and gas exploration and *** paper introduces a hydrophobic nano-silica(HNS)for use in strengthening the wellbore wall when using a water-based drilling fluid(WBF).The wellbore-strengthening performance was studied using the linear swelling test,hot-rolling recovery test,and compressive strength *** mechanism of strengthening the wellbore wall was studied by means of experiments on the zeta potential,particle size,contact angle,and surface tension,and with the use of a scanning electron microscope(SEM).The surface free energy changes of the shale before and after HNS treatment were also calculated using the contact angle *** experimental results showed that HNS exhibited a good performance in inhibiting shale swelling and *** with the use of water,the use of HNS resulted in a 20%smaller linear swelling height of the bentonite pellets and an 11.53 times higher recovery of water-sensitive shale—a performance that exceeds those of the commonly used shale inhibitors KCl and *** importantly,the addition of HNS was effective in preventing a decrease in shale *** to the mechanism study,the good wellbore-strengthening performance of HNS can be attributed to three ***,the positively charged HNS balances parts of the negative charges of clay by means of electrostatic adsorption,thus inhibiting osmotic ***,HNS fabricates a lotus-leaf-like surface with a micro-nano hierarchical structure on shale after adsorption,which significantly increases the water contact angle of the shale surface and considerably reduces the surface free energy,thereby inhibiting surface ***,the decrease in capillary action and the effective plugging of the shale pores reduce the invasion of water and promote wellbore *** approach described herein may provide an avenue for inhibiting both the surface hydration and the os

关键词： Hydrophobic Nanoparticle Shale inhibitor Drilling fluid Wellbore stability

Development and performance evaluation of a high temperature resistant, internal rigid, and external flexible plugging agent for water-based drilling fluids

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Petroleum 2023年第1期9卷 33-40页

作者： Zhe Xu Jinsheng Sun Li Li kaihe lv Jingping Liu Zhiwen Dai Xianfa Zhang Zonglun Wang School of Petroleum Engineering China University of Petroleum(East China)Qingdao266580China CNPC Engineering Technology R&D Company Limited Changping10206China Oil&Gas Technology Research Institute of Changqing Oilfield Company Xi'an710000China

During the drilling process for oil and gas production,a larger number of drilling fluids invade the formation,causing severe formation damage and wellbore collapsing,which seriously hinders the efficient production of deep oil and *** several plugging agents have been developed for efficient fracture sealing in recent years,the development of high-performance plugging agents with self-adaptive ability and high-temperature resistance remain a ***,we report the synthesis of an internal rigid and external flexible plugging agent PANS by reversed-phase emulsion polymerization with nano-silica as the rigid core and poly(acrylamide-co-N-vinylpyrrolidone)as a flexible *** plugging agent has a median particle size of 10.5μm and can self-adapt to seal the microfractures and fractures in the formation,leading to an effective reduction in the filtration loss of bentonite water-based drilling fluid under both low temperature and low pressure(LTLP)and high temperature and high pressure(HTHP)*** addition,compared with the neat nano-silica(500 nm),the sealing efficiency of PANS toward 100–120 mesh sand bed was increased by 71.4%after hot rolling at 180°C.

关键词： Internal rigidity External flexibility Plugging agent Filter loss reduction Plugging performance

The construction of pseudo-Janus silica/surfactant assembly and their application to stabilize Pickering emulsions and enhance oil recovery

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Frontiers of Chemical Science and Engineering 2022年第7期16卷 1101-1113页

作者： Han Jia Jiajun Dai Tingyi Wang Yingbiao Xu Lingyu Zhang Jianan Wang Lin Song kaihe lv Dexin Liu Pan Huang Shandong Key Laboratory of Oilfield Chemistry School of Petroleum EngineeringChina University of Petroleum(East China)Qingdao 266580China Key Laboratory of Unconventional Oil&Gas Development(China University of Petroleum(East China)) Ministry of EducationQingdao 266580China Technology Inspection Center Shengli Oilfield CompanySINOPECDongying 257000China Department of Chemical and Materials Engineering University of Alberta EdmontonAB T6G 1H9Canada

Nanoparticles with high surface energy and chemical activity have drawn substantial attention in petroleum industry. Recently, Janus nanoparticles exhibited tremendous potential in enhanced oil recovery (EOR) due to their asymmetric structures and properties. In this study, a series of amphiphilic pseudo-Janus@OTAB (PJ@C18) nanoparticles with different concentrations of stearyltrimethylammoium bromide (OTAB) were successfully fabricated. The structures and properties of PJ@C18 were characterized by Fourier transform infrared spectroscopy and ζ-potential measurements. Based on the emulsification experimental results, the interaction models and the self-assembly behavior between hydrophilic nanoparticles (SiO_(2)@NH_(2)) and OTAB molecules at the oil/water interface were proposed, which was further confirmed via the measurements of the contact angle and dynamic interfacial tension. Interestingly, it was found that the change of pH value from 7.5 to 4.0 caused the type reversal of the PJ@C18-1000 stabilized Pickering emulsions. Furthermore, the PJ@C18-1000 stabilized Pickering emulsion system with excellent salt and temperature tolerances (10000 mg∙L^(–1), 90℃) significantly improved the oil recovery in the single-tube (more than 17%) and double-tube (more than 25%) sand pack model flooding tests. The findings of this study could help to better understand the construction mechanism of pseudo-Janus silica/surfactant assembly and the potential application of PJ@C18-1000 stabilized Pickering emulsions for EOR.

关键词： Janus nanoparticles surfactant double phase inversion self-assembly enhanced oil recovery

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保护油层自适应随钻堵漏钻井液技术研究

应用基础与工程科学学报 2009年第5期17卷 683-689页

作者：吕开河邱正松宋元森中国石油大学石油工程学院山东东营257061 辽河石油勘探局钻井一公司辽宁盘锦841400

为了避免钻井液漏入地层,钻遇漏失地层前需要向钻井液中加入随钻堵漏剂,将普通钻井液转化为随钻堵漏钻井液.本研究针对漏失地层非均质性强、漏失通道尺寸分布范围广且难以准确预知和常规复合随钻堵漏剂适应性差等特点,研制了自适应随钻... 详细信息

为了避免钻井液漏入地层,钻遇漏失地层前需要向钻井液中加入随钻堵漏剂,将普通钻井液转化为随钻堵漏钻井液.本研究针对漏失地层非均质性强、漏失通道尺寸分布范围广且难以准确预知和常规复合随钻堵漏剂适应性差等特点,研制了自适应随钻堵漏剂和自适应随钻堵漏钻井液技术.该技术能在无须明确预知漏失地层孔喉直径的情况下,自适应封堵岩石表面较大范围的孔喉,对较宽孔径分布的漏失地层具有很好的封堵作用,封堵速度快,封堵层浅,承压能力强,渗透率恢复率高,适合油层和非油层堵漏.室内实验及现场应用证明,自适应随钻堵漏钻井液封堵范围广,渗透率封堵率及渗透率恢复率达均在90%以上,具有良好的堵漏及保护油层效果.

关键词：井漏自适应随钻堵漏油层保护钻井液

聚乙二醇抑制岩屑水化分散作用的影响因素研究

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石油钻探技术 2005年第4期33卷 42-44页

作者：韩立国吕开河胜利石油管理局塔里木钻井公司山东东营257052 中国石油大学(华东)石油工程学院山东东营257061

通过滚动回收率试验,对聚乙二醇(PEG)抑制岩屑水化分散的影响因素进行了研究。结果表明,KCl与PEG具有很好的协同作用,加入少量的KCl就能大大增强PEG的抑制作用;NaCl主要通过调节PEG溶液的浊点温度来改变PEG的抑制作用,当加入NaCl导致PE... 详细信息

通过滚动回收率试验,对聚乙二醇(PEG)抑制岩屑水化分散的影响因素进行了研究。结果表明,KCl与PEG具有很好的协同作用,加入少量的KCl就能大大增强PEG的抑制作用;NaCl主要通过调节PEG溶液的浊点温度来改变PEG的抑制作用,当加入NaCl导致PEG溶液浊点温度低于试验温度时,可显著提高PEG溶液的抑制作用;温度对PEG/NaCl复配体系和PEG/CaCl2复配体系的抑制性影响很大,在高于浊点温度下使用可大幅度提高其抑制性能;PEG相对分子量在2000-20000时对其抑制性影响不显著。

关键词：聚乙二醇性能试验水化抑制剂

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自适应广谱屏蔽暂堵剂ZPJ研究

钻采工艺 2007年第3期30卷 111-112,114页

作者：李玉娇吕开河塔里木油田分公司勘探开发研究院中国石油大学石油工程学院

屏蔽暂堵技术要求所使用的暂堵剂颗粒尺寸分布与油层孔喉直径大小相匹配,否则将不能起到有效的暂堵作用。由于油层非均质性强,油层孔喉半径分布范围较宽,往往导致屏蔽暂堵效果并不理想。自适应广谱屏蔽暂堵剂ZPJ能在无须明确预知孔喉直... 详细信息

屏蔽暂堵技术要求所使用的暂堵剂颗粒尺寸分布与油层孔喉直径大小相匹配,否则将不能起到有效的暂堵作用。由于油层非均质性强,油层孔喉半径分布范围较宽,往往导致屏蔽暂堵效果并不理想。自适应广谱屏蔽暂堵剂ZPJ能在无须明确预知孔喉直径的情况下,自适应封堵岩石表面较大范围的孔喉,对较宽孔径分布的油层具有很好的暂堵作用,有利于反排和渗透率恢复。室内评价表明,自适应广谱屏蔽暂堵剂ZPJ渗透率堵塞率近100%,暂堵带强度大于9MPa,反排渗透率恢复率达90%以上。

关键词：自适应广谱屏蔽暂堵油层保护

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多元醇钻井液高温流变性研究

石油钻探技术 2000年第6期28卷 23-25页

作者：吕开河高锦屏孙明波石油大学(华东)石油工程系，山东东营 257062

用 Fan- 5 0型高温高压流变仪对聚醚多元醇钻井液高温流变性进行了实验研究 ,对描述该钻井液高温流变性的流变模式进行了优选。实验结果表明 ,幂律模式和赫 -巴模式是描述该钻井液流变性能的较佳模式 ;随温度的升高 ,该钻井液流型指数 ... 详细信息

用 Fan- 5 0型高温高压流变仪对聚醚多元醇钻井液高温流变性进行了实验研究 ,对描述该钻井液高温流变性的流变模式进行了优选。实验结果表明 ,幂律模式和赫 -巴模式是描述该钻井液流变性能的较佳模式 ;随温度的升高 ,该钻井液流型指数 n、稠度系数 K、高剪切粘度 ηH和赫 -巴模式的屈服值

关键词：多元醇钻井液流变模式流变性粘度切力

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环保型烷基糖苷季铵盐抑制剂制备及作用机制

中国石油大学学报（自然科学版） 2020年第4期44卷 128-134页

作者：黄熠李中颜帮川李贺吕开河孙金声戴彩丽蒋官澄中海石油(中国)有限公司湛江分公司广东湛江524057 中国石油大学(华东)石油工程学院山东青岛266580 中国石油大学(北京)石油工程学院北京102249

针对非离子表面活性剂烷基糖苷(APG)用作水基钻井液抑制剂时加量大、成本高等问题,通过醚化反应在APG分子中引入季铵阳离子,合成烷基糖苷季铵盐页岩抑制剂(APGS)。通过浸泡实验、线性膨胀实验、页岩滚动回收实验对其抑制性能进行评价,... 详细信息

针对非离子表面活性剂烷基糖苷(APG)用作水基钻井液抑制剂时加量大、成本高等问题,通过醚化反应在APG分子中引入季铵阳离子,合成烷基糖苷季铵盐页岩抑制剂(APGS)。通过浸泡实验、线性膨胀实验、页岩滚动回收实验对其抑制性能进行评价,通过发光细菌法和生物耗氧量法对其毒性及生物降解性进行评价,通过表面张力实验、粒度分析、吸附试验以及红外光谱分析对其抑制机制进行分析。结果表明:APGS抑制黏土水化分散性能优于聚胺和氯化钾;对于易分散钻屑,质量分数为2%APGS岩屑的滚动回收率达73.8%,抑制分散效果明显优于聚胺及APG;APGS与钻井液配伍性好,具有一定的降黏和降滤失作用,无毒,易生物降解。APGS通过中和黏土负电荷,压缩晶层间距,抑制黏土水化分散;通过静电引力和氢键的共同作用,吸附于黏土表面,形成致密的吸附层,阻止水与黏土作用;质量分数为1%APGS水溶液表面张力为29 mN/m,能有效降低毛细管作用力,阻止水侵入地层。

关键词：烷基糖苷季铵盐页岩抑制剂抑制机制井壁稳定