公开(公告)号：US12123864B2

公开(公告)日：2024-10-22

申请号：US18698885

申请日：2022-10-05

Applicant: Schlumberger Technology Corporation

Inventor： Tyler Stenstrom ,  Farshid Mostowfi ,  Christopher Harrison ,  Graham Drummond ,  Matthew Sullivan

IPC: G01N33/28 ,  G01N21/25 ,  G01N30/20 ,  G01N30/34

CPC classification number: G01N33/2835 ,  G01N21/25 ,  G01N30/20 ,  G01N30/34 ,  G01N33/2823

Abstract: Embodiments presented provide for a method and apparatus for testing a sample fluid for asphaltene deposition. The apparatus provides two testing cylinders and a transfer pump to transfer fluid from the first cylinder to the second cylinder and back again while pressure is varied on the testing fluid, while a spectrometer evaluates the fluid during the pressure variation.

公开(公告)号：US09689858B2

公开(公告)日：2017-06-27

申请号：US14919504

申请日：2015-10-21

Applicant: Schlumberger Technology Corporation

Inventor： John Ratulowski ,  Shahnawaz Molla ,  Vincent Sieben ,  Farshid Mostowfi ,  Shawn Taylor ,  Christopher Harrison ,  Shunsuke Fukagawa ,  Elizabeth Smythe ,  Matthew Sullivan ,  John Meier

IPC: G01N33/28 ,  G01V8/02

CPC classification number: G01N33/2823 ,  E21B49/003 ,  E21B49/10 ,  G01N21/31 ,  G01N21/85 ,  G01N33/2835

Abstract: A method for determining an asphaltene onset condition of a crude oil is provided. The method includes receiving a crude oil within a downhole tool inside a well and taking a first measurement of an optical property of the received crude oil. The method also includes lowering the pressure or temperature of the crude oil after taking the first measurement of the optical property to cause aggregation of asphaltenes in the crude oil, and then separating aggregated asphaltenes from the crude oil. Further, the method includes taking a second measurement of the optical property of the crude oil within the downhole tool after separating aggregated asphaltenes from the crude oil and determining an asphaltene onset condition of the crude oil through comparison of the first and second measurements of the optical property. Additional methods, systems, and devices are also disclosed.

公开(公告)号：US20170175522A1

公开(公告)日：2017-06-22

申请号：US14977018

申请日：2015-12-21

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Elizabeth Jennings Smythe ,  Christopher Harrison ,  John Meier ,  Matthew Sullivan ,  Shunsuke Fukagawa

IPC: E21B49/08 ,  G01N9/00 ,  G01N11/16 ,  B01L3/00

CPC classification number: E21B49/08 ,  B01L3/502738 ,  B01L2200/146 ,  B01L2300/0663 ,  B01L2300/14 ,  B01L2300/165 ,  B01L2400/0478 ,  B01L2400/0605 ,  B01L2400/0616 ,  E21B49/10 ,  G01N9/002 ,  G01N11/16 ,  G01N2009/006

Abstract: A method and an apparatus for characterizing a fluid provide for flowing a sample fluid through a microfluidic flow line in a first direction and into contact with a microfluidic sensor, measuring a property of the fluid sample using the microfluidic sensor; and after measuring the property of the fluid sample, flushing the microfluidic sensor by flowing a solvent through the microfluidic flow line in a second direction that is opposite the first direction.

公开(公告)号：US20170115266A1

公开(公告)日：2017-04-27

申请号：US14919504

申请日：2015-10-21

Applicant: Schlumberger Technology Corporation

Inventor： John Ratulowski ,  Shahnawaz Molla ,  Vincent Sieben ,  Farshid Mostowfi ,  Shawn Taylor ,  Christopher Harrison ,  Shunsuke Fukagawa ,  Elizabeth Smythe ,  Matthew Sullivan ,  John Meier

IPC: G01N33/28 ,  G01V8/02

CPC classification number: G01N33/2823 ,  E21B49/003 ,  E21B49/10 ,  G01N21/31 ,  G01N21/85 ,  G01N33/2835

Abstract: A method for determining an asphaltene onset condition of a crude oil is provided. The method includes receiving a crude oil within a downhole tool inside a well and taking a first measurement of an optical property of the received crude oil. The method also includes lowering the pressure or temperature of the crude oil after taking the first measurement of the optical property to cause aggregation of asphaltenes in the crude oil, and then separating aggregated asphaltenes from the crude oil. Further, the method includes taking a second measurement of the optical property of the crude oil within the downhole tool after separating aggregated asphaltenes from the crude oil and determining an asphaltene onset condition of the crude oil through comparison of the first and second measurements of the optical property. Additional methods, systems, and devices are also disclosed.

公开(公告)号：US11193373B2

公开(公告)日：2021-12-07

申请号：US15624735

申请日：2017-06-16

Applicant: Schlumberger Technology Corporation

Inventor： Kai Hsu ,  Elizabeth Jennings Smythe ,  Matthew Sullivan ,  Christopher Harrison ,  Hua Chen

IPC: E21B49/08 ,  E21B47/06 ,  E21B49/10 ,  E21B47/07

Abstract: Apparatus and methods for obtaining a data response of a fluid as a function of pressure of the fluid, and estimating a dew point pressure of the fluid by detecting an inflection pressure, a downward curve pressure, a characteristic change pressure, and an intersection pressure of the function representative of the data response. The estimated dew point pressure of the fluid based on at least one of the inflection pressure, the downward curve pressure, the characteristic change pressure, and the intersection pressure.

公开(公告)号：US20240319162A1

公开(公告)日：2024-09-26

申请号：US18698885

申请日：2022-10-05

Applicant: Schlumberger Technology Corporation

Inventor： Tyler Stenstrom ,  Farshid Mostowfi ,  Christopher Harrison ,  Graham Drummond ,  Matthew Sullivan

IPC: G01N33/28 ,  G01N21/25 ,  G01N30/20 ,  G01N30/34

CPC classification number: G01N33/2835 ,  G01N21/25 ,  G01N30/20 ,  G01N30/34 ,  G01N33/2823

Abstract: Embodiments presented provide for a method and apparatus for testing a sample fluid for asphaltene deposition. The apparatus provides two testing cylinders and a transfer pump to transfer fluid from the first cylinder to the second cylinder and back again while pressure is varied on the testing fluid, while a spectrometer evaluates the fluid during the pressure variation.

公开(公告)号：US20170370215A1

公开(公告)日：2017-12-28

申请号：US15624735

申请日：2017-06-16

Applicant: Schlumberger Technology Corporation

Inventor： Kai Hsu ,  Elizabeth Jennings Smythe ,  Matthew Sullivan ,  Christopher Harrison ,  Hua Chen

IPC: E21B49/08 ,  E21B47/06 ,  E21B49/10

CPC classification number: E21B49/088 ,  E21B47/06 ,  E21B47/065 ,  E21B49/082 ,  E21B49/10 ,  E21B2049/085

Abstract: Apparatus and methods for obtaining a data response of a fluid as a function of pressure of the fluid, and estimating a dew point pressure of the fluid by detecting an inflection pressure, a downward curve pressure, a characteristic change pressure, and an intersection pressure of the function representative of the data response. The estimated dew point pressure of the fluid based on at least one of the inflection pressure, the downward curve pressure, the characteristic change pressure, and the intersection pressure.

公开(公告)号：US10208591B2

公开(公告)日：2019-02-19

申请号：US14977018

申请日：2015-12-21

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Elizabeth Jennings Smythe ,  Christopher Harrison ,  John Meier ,  Matthew Sullivan ,  Shunsuke Fukagawa

IPC: E21B49/08 ,  B01L3/00 ,  G01N9/00 ,  G01N11/16 ,  E21B49/10

Abstract: A method and an apparatus for characterizing a fluid provide for flowing a sample fluid through a microfluidic flow line in a first direction and into contact with a microfluidic sensor, measuring a property of the fluid sample using the microfluidic sensor; and after measuring the property of the fluid sample, flushing the microfluidic sensor by flowing a solvent through the microfluidic flow line in a second direction that is opposite the first direction.