公开(公告)号：US10850277B2

公开(公告)日：2020-12-01

申请号：US16047512

申请日：2018-07-27

Applicant: Schlumberger Technology Corporation

Inventor： Vincent Joseph Sieben ,  Cedric Floquet ,  Farshid Mostowfi

IPC: B01L3/00 ,  G01N21/03 ,  G01N21/77 ,  G01N21/07 ,  G01N21/82 ,  G01N35/00 ,  G01N21/25 ,  G01N21/64 ,  G01N21/65 ,  G01N33/28 ,  C09K8/524 ,  C10G75/04 ,  B01F15/02 ,  B01F13/00 ,  G01N35/02 ,  G01N33/22 ,  G01N35/04

Abstract: A microfluidic device for evaluation of an organic/inorganic scale inhibitor is provided. The device comprises a substrate mountable to a disc for rotation about an axis. The device further comprises a proximal end and a distal end. The substrate defines a sample reservoir, a solvent reservoir, an inhibitor reservoir, and a precipitant reservoir at the proximal end and an analysis chamber at the distal end in fluid communication with the sample, solvent, inhibitor, and precipitant reservoirs. The substrate is constructed to direct one or more of fluids in the sample reservoir, solvent reservoir, inhibitor reservoir, and precipitant reservoir radially outwardly towards the analysis chamber under the influence of centrifugal force when the microfluidic device rotates.

公开(公告)号：US20180333720A1

公开(公告)日：2018-11-22

申请号：US16047512

申请日：2018-07-27

Applicant: Schlumberger Technology Corporation

Inventor： Vincent Joseph Sieben ,  Cedric Floquet ,  Farshid Mostowfi

IPC: B01L3/00 ,  G01N21/82 ,  G01N33/22 ,  G01N33/28 ,  G01N35/00 ,  G01N21/25 ,  C10G75/04 ,  G01N21/07 ,  G01N21/65 ,  G01N21/64 ,  C09K8/524 ,  G01N21/03 ,  G01N21/77

CPC classification number: B01L3/50273 ,  B01F13/0059 ,  B01F15/0233 ,  B01L3/5027 ,  B01L2200/10 ,  B01L2300/0627 ,  B01L2300/0803 ,  B01L2300/0867 ,  B01L2300/087 ,  B01L2400/0409 ,  C09K8/524 ,  C09K2208/20 ,  C10G75/04 ,  G01N21/0332 ,  G01N21/07 ,  G01N21/253 ,  G01N21/645 ,  G01N21/65 ,  G01N21/82 ,  G01N33/22 ,  G01N33/2823 ,  G01N33/2835 ,  G01N35/00069 ,  G01N35/025 ,  G01N2021/0328 ,  G01N2021/0346 ,  G01N2021/7783 ,  G01N2021/7786 ,  G01N2035/0449

Abstract: A microfluidic device for evaluation of an organic/inorganic scale inhibitor is provided. The device comprises a substrate mountable to a disc for rotation about an axis. The device further comprises a proximal end and a distal end. The substrate defines a sample reservoir, a solvent reservoir, an inhibitor reservoir, and a precipitant reservoir at the proximal end and an analysis chamber at the distal end in fluid communication with the sample, solvent, inhibitor, and precipitant reservoirs. The substrate is constructed to direct one or more of fluids in the sample reservoir, solvent reservoir, inhibitor reservoir, and precipitant reservoir radially outwardly towards the analysis chamber under the influence of centrifugal force when the microfluidic device rotates.

公开(公告)号：US10031122B2

公开(公告)日：2018-07-24

申请号：US14893016

申请日：2014-05-28

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Vincent Joseph Sieben ,  Simon Ivar Andersen ,  Farshid Mostowfi ,  Abdel M. Kharrat

IPC: G01N31/00 ,  G01N33/28 ,  G01N1/28 ,  G01N33/24 ,  G01N33/42 ,  G01N21/31 ,  G01N1/40 ,  B01L3/00 ,  G01N21/82 ,  G01N1/38

Abstract: A method and apparatus for analyzing solubility of asphaltenes of a hydrocarbon fluid sample involves a sequence of operations including: i) performing microfluidic mixing operations that form a mixture that includes the hydrocarbon fluid sample, a solvent that dissolves asphaltenes and a precipitant that precipitates asphaltenes; ii) using microfluidic processes that result in precipitation of asphaltenes from the mixture resulting from i); iii) performing microfluidic filtering operations that remove precipitated asphaltenes resulting from ii) and passes permeate; and iv) performing optical spectroscopy on the permeate resulting from iii). The operations of i)-iv) can be repeated over iterations that vary the amount of solvent relative to the precipitant in the mixture. These iterations can cause varying fractional precipitation of asphaltenes in each given iteration.

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：US20170131204A1

公开(公告)日：2017-05-11

申请号：US15348721

申请日：2016-11-10

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Vincent Joseph Sieben ,  Kenneth John Chau ,  Shahnawaz Hossain Molla ,  Cailan Libby ,  Mohammed Al-Shakhs ,  Farshid Mostowfi ,  Simon Ivar Andersen ,  Elizabeth Jennings Smythe

IPC: G01N21/552 ,  G01N33/28

CPC classification number: G01N21/553 ,  G01N21/0332 ,  G01N25/02 ,  G01N33/28 ,  G01N33/2823 ,  G01N2021/1761

Abstract: An optical sensor and corresponding method of operation can detect a phase transition and/or related property of a hydrocarbon-based analyte. The optical sensor includes an optical element with a metallic film coupled or integral thereto, with a sample chamber holds the hydrocarbon-based analyte such that the hydrocarbon-based analyte is disposed adjacent the metallic layer. The optical sensor further includes a light source configured to direct light through the optical element such that the light is reflected by the metallic layer under conditions of surface plasmon resonance. The optical sensor analyzes the reflected light to detect a phase transition and/or related property of a hydrocarbon-based analyte.

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：US20150209781A1

公开(公告)日：2015-07-30

申请号：US14679377

申请日：2015-04-06

Applicant: Schlumberger Technology Corporation

Inventor： Farshid Mostowfi ,  Abdel M. Kharrat ,  Philip James Homewood ,  Joseph Samuel Baddeley ,  Marc Schneider

IPC: B01L3/00

CPC classification number: B01L3/502715 ,  B01L3/5027 ,  B01L3/502753 ,  B01L2300/0681 ,  B01L2300/0816 ,  B01L2300/0867 ,  B01L2300/0883 ,  B01L2300/12 ,  G01N21/05 ,  G01N21/59 ,  G01N21/82 ,  G01N33/2823

Abstract: A system for measuring asphaltene content of crude oil, includes a microfluidic chip, the microfluidic chip having a crude oil sample inlet port, a solvent port, a mixer and reactor section in fluid communication with the crude oil sample inlet port and the solvent port, and a filter in fluid communication with the mixer and reactor section, the filter having an inlet side and an outlet side, a waste port in fluid communication with the inlet side of the filter, and a product port in fluid communication with the outlet side of the filter. The system further includes an optical cell in fluid communication with the product port.

Abstract translation: 用于测量原油沥青质含量的系统包括微流体芯片，所述微流体芯片具有与原油样品入口和溶剂端口流体连通的原油样品入口端口，溶剂端口，混合器和反应器部分， 以及与所述混合器和反应器部分流体连通的过滤器，所述过滤器具有入口侧和出口侧，与所述过滤器的入口侧流体连通的废气口和与所述过滤器的出口侧流体连通的产品端口 过滤器。 该系统还包括与产品端口流体连通的光学单元。