公开(公告)号：US20240418646A1

公开(公告)日：2024-12-19

申请号：US18725712

申请日：2023-06-23

Applicant: Schlumberger Technology Corporation

Inventor： Adriaan Gisolf ,  Oliver Mullins ,  Shahnawaz Hossain Molla ,  Francois Xavier Dubost ,  Hadrien Dumont ,  Vladislav Achourov

IPC: G01N21/53 ,  E21B49/10 ,  G01N21/85

Abstract: Systems and methods presented herein generally relate to a formation testing tool configured to determine whether a formation fluid being tested is a bubble point fluid or a dew point fluid. For example, in certain embodiments, a method includes depressurizing a flowline of a formation testing tool. The flowline contains a formation fluid having a gas-to-oil ratio (GOR) within a predetermined GOR range. The method also includes determining, using a fluid analysis module of the formation testing tool, whether the formation fluid is a bubble point fluid or a dew point fluid by analyzing distribution of bubbles in the formation fluid that are caused by the depressurization of the flowline.

公开(公告)号：US20240309760A1

公开(公告)日：2024-09-19

申请号：US18351676

申请日：2023-07-13

Applicant: Schlumberger Technology Corporation

Inventor： Miroslav Slapal ,  Christopher Albert Babin ,  Daniel Palmer ,  Kai Hsu ,  Anthony Robert Holmes Goodwin ,  Julian Pop ,  Nathan Mathew Landsiedel ,  Adriaan Gisolf

IPC: E21B49/08 ,  E21B21/10 ,  E21B34/10

CPC classification number: E21B49/088 ,  E21B21/10 ,  E21B34/10 ,  E21B49/081

Abstract: A method includes positioning a downhole acquisition tool in a wellbore in a geological formation. The method includes operating a pump module to gather information for a fluid outside of the downhole acquisition tool that enters the downhole acquisition tool from a first flowline, a second flowline, or both while the downhole acquisition tool is within the wellbore. Operating the pump module includes controlling a valve assembly to a first valve configuration that enables the fluid to flow into the downhole tool via the first flowline fluidly coupled to a first pump module. Operating the pump module includes controlling a valve assembly to a second valve configuration that enables the fluid to flow into the downhole tool via the second flowline fluidly coupled to a second pump module, and selectively using a turnaround module or a crossover portion disposed between the first flowline and the second flowline to permit discharging the fluid from one flowline to the other flowline by actuating a valve associated with the turnaround module when the first pump module or the second pump module is not in use.

公开(公告)号：US20240295153A1

公开(公告)日：2024-09-05

申请号：US18572225

申请日：2022-06-22

Applicant: Schlumberger Technology Corporation

Inventor： Hadrien Dumont ,  Morten Kristensen ,  Adriaan Gisolf

IPC: E21B21/08 ,  E21B33/124 ,  E21B43/12 ,  E21B47/00

CPC classification number: E21B21/08 ,  E21B33/124 ,  E21B43/12 ,  E21B47/00

Abstract: Processes for injection of fluids into a wellbore via drill pipe. In some embodiments, the process can include positioning a downhole apparatus on a drill pipe. The process can also include placing the downhole apparatus at a desired station depth within a wellbore. The process can also include attaching a cable to the downhole apparatus from an up-hole environment. The process can also include setting at least one packer to seal a space between at least a portion of the downhole apparatus and an inner surface of the wellbore. The process can also include introducing a fluid to the downhole apparatus through the drill pipe. The process can also include using a pump from the downhole apparatus or a pump located at a surface of the earth to inject at least a portion of the fluid from the downhole apparatus into a geological stratum at the desired station depth.

公开(公告)号：US11674372B2

公开(公告)日：2023-06-13

申请号：US17207871

申请日：2021-03-22

Applicant: Schlumberger Technology Corporation

Inventor： Hadrien Dumont ,  Francois Xavier Dubost ,  Bertrand Claude Theuveny ,  Adriaan Gisolf ,  Pierre-Yves Corre

IPC: E21B49/08 ,  E21B43/12

CPC classification number: E21B43/121 ,  E21B49/087 ,  E21B49/088

Abstract: A method can include flowing fluid from a formation from an inlet of a tool to an annulus; flowing spacer fluid from a conduit to the annulus; flowing the fluid and the spacer fluid in the annulus to a station; and collecting the fluid.

公开(公告)号：US10767472B2

公开(公告)日：2020-09-08

申请号：US16025191

申请日：2018-07-02

Applicant: Schlumberger Technology Corporation

Inventor： Thomas Pfeiffer ,  Adriaan Gisolf ,  Vladislav Achourov ,  Geir Thomas Glattetre ,  Kathryn Briggs ,  Jan Erik Tvedten

IPC: E21B49/00 ,  E21B49/08

Abstract: A downhole acquisition tool having a formation testing module is provided. The formation testing module includes a fluid chamber comprising a piston and configured to store a fluid and to receive a flowback fluid from a geological formation, wherein the fluid is substantially free of solids. Additionally, the formation testing tool has a first conduit fluidly coupled to the fluid chamber and extending from a flowback conduit and a first outlet of the formation testing module, wherein the flowback conduit is configured fluidly coupled to the geological formation. and configured to receive the flowback fluid from the geological formation, and wherein the first conduit is configured to receive the flowback fluid from the flowback conduit. Further, the formation testing module has a first flow control device positioned downstream from the fluid chamber, wherein the first flow control device is configured to control a flow of the fluid exiting the fluid chamber.

公开(公告)号：US10309885B2

公开(公告)日：2019-06-04

申请号：US14085550

申请日：2013-11-20

Applicant: Schlumberger Technology Corporation

Inventor： Youxiang Zuo ,  Adriaan Gisolf ,  Julian Pop ,  Oliver Mullins ,  Chetankumar Desai

IPC: G01N9/00 ,  E21B49/08 ,  G01N9/36 ,  G01N33/28

Abstract: A method for contamination monitoring includes measuring water based mud filtrate density and resistivity at downhole conditions, logging properties of a downhole fluid to find at least a resistivity and a density of a fluid sample at the downhole conditions, establishing a linear relationship between a water based mud filtrate conductivity at downhole conditions and the water based mud filtrate density at the downhole conditions, determining a density and a resistivity for native formation water, estimating a density for water based mud filtrate using the linear relationship between conductivity and density, and estimating a water based mud filtrate contamination.

公开(公告)号：US10295522B2

公开(公告)日：2019-05-21

申请号：US15419137

申请日：2017-01-30

Applicant: Schlumberger Technology Corporation

Inventor： Youxiang Zuo ,  Adriaan Gisolf ,  Li Chen

IPC: G01N33/28 ,  E21B41/00 ,  E21B49/10

Abstract: Methods and apparatus for operating a downhole tool within a wellbore adjacent a subterranean formation to pump contaminated fluid from the formation into the downhole tool while measuring first and second fluid properties of the contaminated fluid. The contaminated fluid comprises native fluid from the formation and a contaminant. The downhole tool is in communication with surface equipment located at surface. The downhole tool and/or surface equipment is operated to estimate a formation volume factor of the contaminated fluid based on at least one of the first and second fluid properties of the contaminated fluid. A linear relationship is then estimated between the first fluid property and a function that relates the first fluid property to the second fluid property and the estimated formation volume factor of the contaminated fluid. A fluid property of the contaminant is then estimated based on the estimated linear relationship.

公开(公告)号：US10012633B2

公开(公告)日：2018-07-03

申请号：US15599515

申请日：2017-05-19

Applicant: Schlumberger Technology Corporation

Inventor： Adriaan Gisolf ,  Youxiang Zuo ,  Ronald E. G. van Hal ,  Jeffrey Crank

IPC: G01N33/28 ,  G01N30/88 ,  B01L7/00 ,  E21B49/08 ,  E21B49/10

CPC classification number: G01N33/2823 ,  E21B49/087 ,  E21B49/10 ,  E21B2049/085 ,  G01N30/88 ,  G01N33/28 ,  G01N2030/8854

Abstract: Methods are provided for reservoir analysis. In some embodiments, a reservoir may be analyzed by obtaining abundance ratios at a first measurement station and a second measurement station and determining an abundance ratio trend. Abundance ratios at a third measurement station may be obtained and plotted versus depth with the previously obtained abundance ratios. A change in the abundance ratio trend may be identified and result in further investigation of the reservoir. If the abundance ratio is unchanged, additional abundance ratios may be obtained and plotted versus depth to further evaluate the abundance ratio trend. Methods for reservoir analysis using fluid predictions with and without offset well information are also provided.

公开(公告)号：US20170363077A1

公开(公告)日：2017-12-21

申请号：US15183432

申请日：2016-06-15

Applicant: Schlumberger Technology Corporation

Inventor： Adriaan Gisolf ,  Youxiang Zuo ,  Yi Chen

IPC: F04B49/06 ,  E21B43/12 ,  F04B49/22 ,  G05B19/416 ,  F04B47/02 ,  F04B53/14 ,  E21B49/08 ,  E21B47/00 ,  E21B47/18

CPC classification number: F04B49/065 ,  E21B47/0007 ,  E21B49/081 ,  F04B47/02 ,  F04B49/22 ,  F04B53/14

Abstract: First piston position data of a piston in a displacement unit is obtained based on an output signal from a sensor associated with the displacement unit, the output signal being dependent upon a physical position of the piston in the displacement unit. Second piston position data of the piston in the displacement unit is obtained based on data indicative of a number of revolutions of a hydraulic motor in a hydraulic system, the hydraulic system being operable to drive the piston of the displacement unit. Based on the second piston position data, a flow rate of a fluid pumped by the displacement unit is estimated. A system correction factor is generated based on the first piston position data and the second piston position data. The estimated flow rate is adjusted based on the system correction factor.

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.