公开(公告)号：US20170152743A1

公开(公告)日：2017-06-01

申请号：US14956338

申请日：2015-12-01

Applicant: Schlumberger Technology Corporation

Inventor： Adriaan Gisolf ,  Kai Hsu ,  Yong Chang ,  Youxiang Zuo ,  Ryan Sangjun Lee ,  Ashers Partouche

IPC: E21B49/08 ,  G01N1/14 ,  E21B49/10

CPC classification number: E21B49/081 ,  E21B47/12 ,  E21B49/10 ,  E21B2049/085 ,  G01N1/14

Abstract: A method includes operating a downhole acquisition tool including a guard probe and a sample probe in a wellbore that contains a fluid that includes a native reservoir fluid and a contaminant. The method also includes receiving a first portion of fluid into the guard probe and a second portion of fluid into the sample probe, estimating a contamination level of the first or second portions based on a fluid property of the respective first and second portions, determining an initial guard flow rate of the first portion, determining an initial sample flow rate of the second portion, using a processor to adjust a guard flow rate of the second portion over pump time after the contamination level of the first portion is at or below a contamination level threshold, and adjust a sample flow rate of the first portion based on the adjusted guard flow rate and total flowrate.

公开(公告)号：US20160090836A1

公开(公告)日：2016-03-31

申请号：US14867262

申请日：2015-09-28

Applicant: Schlumberger Technology Corporation

Inventor： Kang Wang ,  Youxiang Zuo ,  Ryan Sangjun Lee ,  Adriaan Gisolf

IPC: E21B49/08

Abstract: A method includes operating a downhole acquisition tool in a wellbore in a geological formation. The wellbore or the geological formation, or both contains a fluid that includes a native reservoir fluid of the geological formation and a contaminant. The method also includes receiving a portion of the fluid into the downhole acquisition tool, measuring a fluid property of the portion of the fluid using the downhole acquisition tool, and using the processor to estimate a fluid property of the native reservoir fluid based on the measured fluid property of the portion of the fluid and a regression model that may predict an asymptote of a growth curve. The asymptote corresponds to the estimated fluid property of the native formation fluid, and the regression model includes a geometric fitting model other than a power-law model.

Abstract translation: 一种方法包括在地质层中的井眼中操作井下采集工具。 井眼或地质构造，或两者都含有包括地质构造的天然储层流体和污染物的流体。 该方法还包括将一部分流体接收到井下采集工具中，使用井下采集工具测量流体部分的流体特性，并且使用处理器基于所测量的来估计天然储层流体的流体性质 流体部分的流体特性和可以预测生长曲线的渐近线的回归模型。 渐近线对应于天然地层流体的估计流体性质，回归模型包括除幂律模型以外的几何拟合模型。

公开(公告)号：US20150211361A1

公开(公告)日：2015-07-30

申请号：US14164991

申请日：2014-01-27

Applicant: Schlumberger Technology Corporation

Inventor： Adriaan Gisolf ,  Youxiang Zuo ,  Ryan Sangjun Lee ,  Jonathan Leonard

IPC: E21B49/08

CPC classification number: E21B49/08 ,  E21B2049/085

Abstract: Implementations of the present disclosure relate to apparatuses, systems, and methods for determining when a well cleanup process has established developed flow and then extrapolating out modeled fluid parameter values to determine parameter values for a formation fluid. The model fluid parameter values may be modeled using a power law function having a specified exponent value.

Abstract translation: 本公开的实施方式涉及用于确定井清理过程何时已建立开发流程，然后外推模拟流体参数值以确定地层流体的参数值的装置，系统和方法。 模型流体参数值可以使用具有指定指数值的幂律函数来建模。

公开(公告)号：US10184335B2

公开(公告)日：2019-01-22

申请号：US14106540

申请日：2013-12-13

Applicant: Schlumberger Technology Corporation

Inventor： Ryan Sangjun Lee ,  Yong Chang ,  Ashers Partouche ,  Sylvain Bedouet

IPC: E21B49/08 ,  E21B47/12

Abstract: A configuration for testing fluid with a single packer includes at least one sample inlet and at least one guard inlet surrounding a periphery of the at least one sample inlet, wherein the at least one sample inlet has at least one side that is parallel to another side of the at least one sample inlet and the at least one sample inlet has at least two rounded ends connecting each of the parallel sides, and the at least one guard inlet has at least one side that is parallel to another side of the at least one guard inlet and the at least one guard inlet has at least two rounded ends connecting each of the parallel side of the guard inlet.

公开(公告)号：US20160319662A1

公开(公告)日：2016-11-03

申请号：US15135411

申请日：2016-04-21

Applicant: Schlumberger Technology Corporation

Inventor： Youxiang Zuo ,  Kang Wang ,  Adriaan Gisolf ,  Ryan Sangjun Lee

IPC: E21B49/08 ,  G01F22/00

Abstract: A method includes operating a downhole acquisition tool in a wellbore in a geological formation. The wellbore or the geological formation, or both, contains first fluid that includes a native reservoir fluid of the geological formation and a contaminant. The method also includes receiving a portion of the first fluid into the downhole acquisition tool and determining a plurality of properties of the portion of the first fluid using the downhole acquisition tool. The plurality of properties includes a mass fraction of a component of the portion of the first fluid and a density of the portion of the first fluid. The method also includes using the processor to estimate a volume fraction of the contaminant in the portion of the first fluid based at least in part on a composition mass fraction function that depends at least on the mass fraction of the component in the portion of the first fluid and the density of the portion of the first fluid.

Abstract translation: 一种方法包括在地质层中的井眼中操作井下采集工具。 井眼或地质构造或两者都含有包含地质构造的天然储层流体和污染物的第一流体。 该方法还包括将第一流体的一部分接收到井下采集工具中，并使用井下采集工具确定第一流体的该部分的多个性质。 多个性质包括第一流体部分的组分的质量分数和第一流体的该部分的密度。 该方法还包括使用处理器至少部分地基于组成质量分数函数来估计第一流体部分中的污染物的体积分数，该组成质量分数函数至少取决于第一流体的部分中的组分的质量分数 流体和第一流体的部分的密度。

公开(公告)号：US20160216404A1

公开(公告)日：2016-07-28

申请号：US15005531

申请日：2016-01-25

Applicant: Schlumberger Technology Corporation

Inventor： Morten Kristensen ,  Cosan Ayan ,  Ryan Sangjun Lee ,  Nikita Chugunov

IPC: G01V99/00 ,  G06F17/10

CPC classification number: E21B49/10

Abstract: Methods and systems for generating and utilizing a proxy model that generates a pumping parameter as a function of contamination. The pumping parameter is descriptive of a pumpout time or volume of fluid to be obtained from a formation by a downhole sampling tool positioned in a wellbore extending into the formation. The contamination is a percentage of the fluid obtained by the downhole sampling tool that is not native to the formation. The proxy model is based on a true model that utilizes true model input parameters that include the pumping parameter, formation parameters descriptive of the formation, and a filtrate parameter descriptive of a drilling fluid utilized to form the wellbore. The output of the true model is the contamination as a function of the pumping parameter. The proxy model utilizes proxy model input parameters each related to one or more of the true model input parameters.

Abstract translation: 用于生成和利用生成作为污染函数的泵送参数的代理模型的方法和系统。 泵送参数描述了通过定位在延伸到地层中的井眼中的井下采样工具从地层获得的液体的抽出时间或体积。 污染物是由井下取样工具获得的不是地层天然的液体的百分比。 代理模型基于真实模型，其使用真实模型输入参数，其包括泵送参数，描述地层的形成参数以及描述用于形成井眼的钻井液的滤液参数。 真实模型的输出是作为泵送参数的函数的污染物。 代理模型使用代理模型输入参数，每个参数与一个或多个真实模型输入参数相关。

公开(公告)号：US20160186560A1

公开(公告)日：2016-06-30

申请号：US14975704

申请日：2015-12-18

Applicant: Schlumberger Technology Corporation

Inventor： Youxiang Zuo ,  Adriaan Gisolf ,  Kang Wang ,  Ryan Sangjun Lee

IPC: E21B49/08 ,  E21B47/00

CPC classification number: E21B49/10 ,  E21B2049/085

Abstract: A downhole tool operable to pump a volume of contaminated fluid from a subterranean formation during an elapsed pumping time while obtaining in-situ, real-time data associated with the contaminated fluid. The contaminated fluid includes native formation fluid and oil-based mud (OBM) filtrate. A shrinkage factor of the contaminated fluid is determined based on the in-situ, real-time data. The contaminated fluid shrinkage factor is fit relative to pumped volume or pumping time to obtain a function relating the shrinkage factor with pumped volume or elapsed pumping time. A shrinkage factor of the native formation fluid is determined based on the function. A shrinkage factor of the OBM filtrate is also determined. OBM filtrate volume percentage is determined based on the shrinkage factor of the native formation fluid and the shrinkage factor of the OBM filtrate.

Abstract translation: 一种井下工具，其可操作以在经过的抽吸时间期间从地下地层泵送一定体积的污染流体，同时获得与受污染流体相关的原位实时数据。 受污染的流体包括天然地层流体和油基泥浆（OBM）滤液。 基于原位实时数据确定受污染流体的收缩因子。 受污染的流体收缩因子相对于泵送体积或泵送时间是适合的，以获得与收缩因子与泵送体积或经过的抽吸时间相关的功能。 基于该功能确定天然地层流体的收缩因子。 还测定了OBM滤液的收缩因子。 基于天然地层流体的收缩因子和OBM滤液的收缩率确定OBM滤液体积百分比。

公开(公告)号：US10858935B2

公开(公告)日：2020-12-08

申请号：US14164991

申请日：2014-01-27

Applicant: Schlumberger Technology Corporation

Inventor： Adriaan Gisolf ,  Youxiang Zuo ,  Ryan Sangjun Lee ,  Jonathan Leonard

IPC: E21B49/08

Abstract: Implementations of the present disclosure relate to apparatuses, systems, and methods for determining when a well cleanup process has established developed flow and then extrapolating out modeled fluid parameter values to determine parameter values for a formation fluid. The model fluid parameter values may be modeled using a power law function having a specified exponent value.

公开(公告)号：US10738606B2

公开(公告)日：2020-08-11

申请号：US16411845

申请日：2019-05-14

Applicant: Schlumberger Technology Corporation

Inventor： Youxiang Zuo ,  Kang Wang ,  Adriaan Gisolf ,  Ryan Sangjun Lee ,  Oliver C. Mullins ,  Shu Pan

IPC: E21B49/08 ,  G01N33/28

Abstract: A method includes identifying linearly behaving data within obtained data associated with fluid obtained from a subterranean formation. Shrinkage factor is determined based on the linearly behaving data. A function relating GOR data of the obtained fluid with the determined shrinkage factor is determined. A first linear relationship between optical density (OD) data of the obtained fluid and the function is determined. A second linear relationship between density data of the obtained fluid and the function is determined. An oil-based mud (OBM) filtrate contamination property of OBM filtrate within the obtained fluid based on the first linear relationship is determined. A native formation property of native formation fluid within the obtained fluid based on the second linear relationship is determined. A volume fraction of OBM filtrate contamination within the obtained fluid based on the OBM filtrate contamination property and the native formation property is estimated.

公开(公告)号：US10577928B2

公开(公告)日：2020-03-03

申请号：US14867262

申请日：2015-09-28

Applicant: Schlumberger Technology Corporation

Inventor： Kang Wang ,  Youxiang Zuo ,  Ryan Sangjun Lee ,  Adriaan Gisolf

IPC: E21B49/08

Abstract: A method includes operating a downhole acquisition tool in a wellbore in a geological formation. The wellbore or the geological formation, or both contains a fluid that includes a native reservoir fluid of the geological formation and a contaminant. The method also includes receiving a portion of the fluid into the downhole acquisition tool, measuring a fluid property of the portion of the fluid using the downhole acquisition tool, and using the processor to estimate a fluid property of the native reservoir fluid based on the measured fluid property of the portion of the fluid and a regression model that may predict an asymptote of a growth curve. The asymptote corresponds to the estimated fluid property of the native formation fluid, and the regression model includes a geometric fitting model other than a power-law model.