检索结果-南通市图书馆

Experimental research of condensate blockage and mitigating effect of gas injection

Petroleum 2018年第3期4卷 292-299页

作者： Zhouhua Wang Shili Zhu Wei Zhou Huang Liu Yisheng Hu Ping Guo Jianfen Du Junjie Ren State Key Lab of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum UniversityChengduChina Experimental Test Research Institute of XinJiang Oilfield Company Petro ChinaKaramayChina

The condensate blockage causes a substantial decrease in well productivity for gas condensate *** on the previous studies,a novel experimental method was designed to evaluate condensate blockage and the mitigating effect of gas *** method considers the stacking effect in the near wellbore region and the gas flow in the far wellbore *** is an intermediate vessel containing condensate gas at the entrance of core holder in the experimental *** the process of pressure depletion experiment in a long core model,the vessel is connected to the core and the pressure of the vessel remains above the dew point *** seriousness of condensate blockage is investigated by this *** pressure drops to maximum retrograde condensation pressure,the gas permeability decreases by 80%compared with the initial gas *** experiments were conducted to study the removal effect of different injection fluids and different injection *** results show that CO2 injection is more effective than methanol in mitigating condensate blockage and the optimal CO2 injection volume is around 0.15 HCPV。

关键词： condensate blockage Experiment method CO2 injection Injection volume

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Effect of a synthesized anionic fluorinated surfactant on wettability alteration for chemical treatment of near-wellbore zone in carbonate gas condensate reservoirs

引用

Petroleum Science 2020年第6期17卷 1655-1668页

作者： Iman Nowrouzi Amir H.Mohammadi Abbas Khaksar Manshad Discipline of Chemical Engineering School of EngineeringUniversity of KwaZulu-NatalHoward College CampusKing George V AvenueDurban 4041South Africa Department of Petroleum Engineering Abadan Faculty of Petroleum EngineeringPetroleum University of Technology(PUT)AbadanIran Department of Petroleum Engineering Faculty of EngineeringSoran UniversitySoranKurdistan RegionIraq

The pressure drop during production in the near-wellbore zone of gas condensate reservoirs causes condensate formation in this *** blockage in this area causes an additional pressure drop that weakens the effective parameters of production,such as *** rock wettability alteration to gas-wet through chemical treatment is one of the solutions to produce these condensates and eliminate condensate blockage in the *** this study,an anionic fluorinated surfactant was synthesized and used for chemical treatment and carbonate rock wettability *** synthesized surfactant was characterized by Fourier transform infrared spectroscopy and thermogravimetric ***,using surface tension tests,its critical micelle concentration(CMC)was *** angle experiments on chemically treated sections with surfactant solutions and spontaneous imbibition were performed to investigate the wettability *** adsorption on porous media was calculated using ***,the surfactant foamability was investigated using a Ross-Miles foam *** to the results,the synthesized surfactant has suitable thermal stability for use in gas condensate reservoirs.A CMC of 3500 ppm was obtained for the surfactant based on the surface tension *** angle experiments show the ability of the surfactant to chemical treatment and wettability alteration of carbonate rocks to gas-wet so that at the constant concentration of CMC and at 373 K,the contact angles at treatment times of 30,60,120 and 240 min were obtained 87.94°,93.50°,99.79°and 106.03°,***,this ability varies at different surfactant concentrations and *** foamability test also shows the suitable stability of the foam generated by the surfactant,and a foam half-life time of 13 min was obtained for the surfactant at CMC.

关键词： condensate blockage Chemical treatment Wettability alteration Gas-wetting Fluorinated surfactant Surface tension

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：