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1. 发明授权

US10228325B2 Downhole fluid analysis method and apparatus for determining viscosity 有权
公开(公告)号：US10228325B2
公开(公告)日：2019-03-12
申请号：US15027227
申请日：2014-10-03
申请人： Schlumberger Technology Corporation
发明人： Youxiang Zuo , Hadrien Dumont , Richard Jackson , Ilaria De Santo , Oliver C. Mullins , Cosan Ayan
IPC分类号： G01N21/59 , E21B49/08 , E21B49/10 , G01N11/00 , G01N11/02 , G01N30/88
摘要： The present disclosure relates to a downhole fluid analysis method that includes withdrawing formation fluid into a downhole tool at a plurality of stations within a wellbore, analyzing the formation fluid within a fluid analyzer of a downhole tool to determine properties of the formation fluid for the plurality of stations, and developing, based on the determined properties of the formation fluid, a relationship for predicting viscosity from a measured optical density.

2. 发明授权

US09772425B2 Distinguishing mud filtrate from formation water by multi-DOI NMR 有权
公开(公告)号：US09772425B2
公开(公告)日：2017-09-26
申请号：US13804333
申请日：2013-03-14
申请人： Schlumberger Technology Corporation
发明人： David Nanlung Dangfa , Ilaria De Santo , Iftikhar Khattak , Harish Baban Datir
IPC分类号： G01V3/00 , G01V3/32 , G01N24/08
CPC分类号： G01V3/32 , G01N24/081 , Y02A90/344
摘要： A nuclear magnetic resonance (NMR) measurement, at two or more depths of investigation, of a subsurface formation containing formation water and a mud filtrate from a water-base mud is obtained, and the mud filtrate is distinguished from the formation water. A NMR logging tool is disposed in a wellbore penetrating the formation containing the mud filtrate and the formation water and NMR measurements at different radial depths of investigation into the formation are made. The mud filtrate is distinguished from the formation water by determining the relative salinities of the mud filtrate and the formation water. The relative salinities are determined by comparing distribution relaxation times across different depths of investigation or by comparing logarithmic mean values across different depths of investigation.

3. 发明授权

US09784101B2 Estimation of mud filtrate spectra and use in fluid analysis 有权
公开(公告)号：US09784101B2
公开(公告)日：2017-10-10
申请号：US14248528
申请日：2014-04-09
申请人： Schlumberger Technology Corporation
发明人： Richard Jackson , Ankit Agarwal , Adriaan Gisolf , Ilaria De Santo , Youxiang Zuo
IPC分类号： E21B49/08 , E21B49/10
CPC分类号： E21B49/08 , E21B49/10
摘要： A method for using an optical spectrum of mud filtrate for analysis of fluid drawn from a formation is provided. The method includes performing downhole fluid analysis of formation fluid drawn at a wellbore measurement station and determining an optical spectrum of mud filtrate in the formation fluid drawn at the wellbore measurement station. The method also includes performing downhole fluid analysis of formation fluid drawn at an additional wellbore measurement station, and performing the downhole fluid analysis of formation fluid drawn at the additional wellbore measurement station includes using the determined optical spectrum of the mud filtrate in the formation fluid previously drawn at the wellbore measurement station. Additional methods, systems, and devices are also disclosed.

4. 发明申请

US20160252454A1 Downhole Fluid Analysis Method and Apparatus for Determining Viscosity 审中-公开
标题翻译：用于确定粘度的井下流体分析方法和装置
公开(公告)号：US20160252454A1
公开(公告)日：2016-09-01
申请号：US15027227
申请日：2014-10-03
申请人： SCHLUMBERGER TECHNOLOGY CORPORATION
发明人： Youxiang Zuo , Hadrien Dumont , Richard Jackson , Ilaria De Santo , Oliver C. Mullins , Cosan Ayan
IPC分类号： G01N21/59 , G01N11/02 , G01N30/88 , E21B49/08
CPC分类号： G01N21/5907 , E21B49/08 , E21B49/10 , E21B2049/085 , G01N11/00 , G01N11/02 , G01N30/88 , G01N2011/008
摘要： The present disclosure relates to a downhole fluid analysis method that includes withdrawing formation fluid into a downhole tool at a plurality of stations within a wellbore, analyzing the formation fluid within a fluid analyzer of a downhole tool to determine properties of the formation fluid for the plurality of stations, and developing, based on the determined properties of the formation fluid, a relationship for predicting viscosity from a measured optical density.
摘要翻译：本公开内容涉及一种井下流体分析方法，其包括将地层流体排入井筒内的多个站处的井下工具，分析井下工具的流体分析器内的地层流体，以确定多个地层流体的性质并且基于确定的地层流体的性质开发从测量的光密度预测粘度的关系。

5. 发明申请

US20150292324A1 Estimation of Mud Filtrate Spectra and Use in Fluid Analysis 有权
标题翻译：泥浆滤液的光谱估计和流体分析中的应用
公开(公告)号：US20150292324A1
公开(公告)日：2015-10-15
申请号：US14248528
申请日：2014-04-09
申请人： Schlumberger Technology Corporation
发明人： Richard Jackson , Ankit Agarwal , Adriaan Gisolf , Ilaria De Santo , Youxiang Zuo
IPC分类号： E21B49/08
CPC分类号： E21B49/08 , E21B49/10
摘要： A method for using an optical spectrum of mud filtrate for analysis of fluid drawn from a formation is provided. The method includes performing downhole fluid analysis of formation fluid drawn at a wellbore measurement station and determining an optical spectrum of mud filtrate in the formation fluid drawn at the wellbore measurement station. The method also includes performing downhole fluid analysis of formation fluid drawn at an additional wellbore measurement station, and performing the downhole fluid analysis of formation fluid drawn at the additional wellbore measurement station includes using the determined optical spectrum of the mud filtrate in the formation fluid previously drawn at the wellbore measurement station. Additional methods, systems, and devices are also disclosed.
摘要翻译：提供了一种使用泥浆滤液光谱分析从地层抽取的流体的方法。该方法包括对在井眼测量站处绘制的地层流体进行井下流体分析，并确定在井筒测量站处抽取的地层流体中泥浆滤液的光谱。该方法还包括对在另外的井眼测量站处绘制的地层流体进行井下流体分析，以及对在附加井眼测量站处绘制的地层流体进行井下流体分析包括使用先前在地层流体中确定的泥浆滤液的光谱在井眼测量站绘制。还公开了附加的方法，系统和装置。

6. 发明申请

US20130271127A1 Distinguishing Mud Filtrate From Formation Water By Multi-DOI NMR 有权
标题翻译：通过多DOI NMR鉴定地层水中的泥浆滤液
公开(公告)号：US20130271127A1
公开(公告)日：2013-10-17
申请号：US13804333
申请日：2013-03-14
申请人： SCHLUMBERGER TECHNOLOGY CORPORATION
发明人： David Nanlung Dangfa , Ilaria De Santo , Iftikhar Khattak , Harish Baban Datir
IPC分类号： G01V3/32
CPC分类号： G01V3/32 , G01N24/081 , Y02A90/344
摘要： A nuclear magnetic resonance (NMR) measurement, at two or more depths of investigation, of a subsurface formation containing formation water and a mud filtrate from a water-base mud is obtained, and the mud filtrate is distinguished from the formation water. A NMR logging tool is disposed in a wellbore penetrating the formation containing the mud filtrate and the formation water and NMR measurements at different radial depths of investigation into the formation are made. The mud filtrate is distinguished from the formation water by determining the relative salinities of the mud filtrate and the formation water. The relative salinities are determined by comparing distribution relaxation times across different depths of investigation or by comparing logarithmic mean values across different depths of investigation.
摘要翻译：获得含有地层水的地下地层和来自水基泥浆的泥浆滤液的两个或更多个勘探深度的核磁共振（NMR）测量，泥浆滤液与地层水不同。 NMR测井工具设置在渗透含有泥浆滤液的地层的井眼中，并且在不同径向深度的地层中进行地层水和NMR测量。通过确定泥浆滤液和地层水的相对盐度，泥浆滤液与地层水不同。相对盐度通过比较不同深度的调查分布松弛时间或通过比较不同深度的对数平均值来确定。

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