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    MICROFLUIDIC TECHNIQUE FOR DETECTION OF MULTI-CONTACT MISCIBILITY
    1.
    发明申请
    MICROFLUIDIC TECHNIQUE FOR DETECTION OF MULTI-CONTACT MISCIBILITY 审中-公开

    公开(公告)号：US20200290040A1

    公开(公告)日：2020-09-17

    申请号：US16651181

    申请日：2018-09-21

    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： Shahnawaz Hossain Molla ,  John Ratulowski ,  Farshid Mostowfi ,  Jinglin Gao

    IPC: B01L3/00 ,  G01N21/85 ,  B01F13/00 ,  B01F5/06 ,  B01F3/04 ,  B01F15/00

    Abstract: A microfluidic apparatus includes a substrate defining a microchannel having inlet and an outlet defining a length of the microchannel. The microchannel has a main channel extending from the inlet to the outlet, and a plurality of side cavities extending from the main channel. The cavities are in fluid communication with the main channel. A method includes introducing a sample into the microchannel through the inlet to fill the entire microchannel, and then introducing a solvent into the microchannel through the inlet at a controlled flow rate and inlet pressure. A developed solvent front then moves along the main channel from the inlet to the outlet while displacing the sample in the main channel. Images of the microchannel are acquired as the front moves, and a miscibility condition is determined based on the images.

    Digital core sensitivity analysis
    3.
    发明授权
    Digital core sensitivity analysis 有权

    公开(公告)号：US10465483B2

    公开(公告)日：2019-11-05

    申请号：US14911708

    申请日：2014-07-23

    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： Mark Andersen ,  Denis Klemin ,  Alexander Nikolaevich Nadeev ,  Omer M. Gurpinar ,  John Ratulowski

    IPC: E21B41/00 ,  E21B43/00 ,  E21B43/16 ,  G06F17/18

    Abstract: A method for performing simulation of a field having a subterranean formation, including: obtaining a three-dimensional (3D) porous solid image of a core sample, the core sample representing a portion of the field; generating a digital rock model from the solid image, the digital rock model describing a physical pore structure in the core sample; obtaining phase behavior data of fluids of the field; generating a digital fluid model of the fluids based on the phase behavior data, the digital fluid model describing a physical property of the fluid; performing, on a computer system and based on the digital rock model and the digital fluid model, simulations of the field by varying an input parameter for the simulations; and analyzing an output parameter generated by the simulations to determine an effect of varying the input parameter on the output parameter.

    Measurement of liquid parameters using a microfluidic device
    4.
    发明授权
    Measurement of liquid parameters using a microfluidic device 有权

    公开(公告)号：US10895544B2

    公开(公告)日：2021-01-19

    申请号：US15503569

    申请日：2015-06-22

    Applicant: Schlumberger Technology Corporation

    Inventor： Shahnawaz Hossain Molla ,  Farshid Mostowfi ,  John Ratulowski

    IPC: G01N33/28 ,  G01N25/02 ,  G01N21/25 ,  G01N21/05 ,  G01N21/03 ,  B81B1/00 ,  G01N25/66

    Abstract: A microfluidic apparatus has a microchannel that includes at least one vertically oriented segment with a top section having a relatively wide opening and a bottom section having a relatively narrow opening. The top section is larger in volume relative to the bottom sections, and the middle sections taper down in at least one dimension from the top section to the bottom section. One or tens or hundreds of vertically-oriented segments may be provided, and they are fluidly coupled to each other. Each segment acts as a pressure-volume-temperature (PVT) cell, and the microchannel apparatus may be used to determine a parameter of a fluid containing hydrocarbons such as the dew point of the fluid or the liquid drop-out as a function of pressure.

    Method and apparatus for characterizing interfacial tension between two immiscible or partially miscible fluids
    5.
    发明授权
    Method and apparatus for characterizing interfacial tension between two immiscible or partially miscible fluids 有权

    公开(公告)号：US09869624B2

    公开(公告)日：2018-01-16

    申请号：US14357573

    申请日：2012-12-14

    Applicant: Schlumberger Technology Corporation

    Inventor： Geza Horvath Szabo ,  John Ratulowski ,  Dmitry Eskin

    IPC: G01N13/00 ,  G01N13/02

    CPC classification number: G01N13/00 ,  G01N13/02 ,  G01N2013/0241

    Abstract: An apparatus (and method) for characterizing interfacial tension between a non-wetting phase fluid and a wetting phase fluid of a slug flow employs a capillary structure that is configured to contain a slug of the non-wetting phase fluid of the slug flow. The slug has a leading edge meniscus and a trailing edge meniscus, and the capillary structure has a venturi-like section. A pressure sensor is configured to measure differential pressure between first and second locations of the capillary structure. The first location is disposed upstream of the leading edge meniscus of the slug with the leading edge meniscus of the slug contained within the venturi-like section. The second location is disposed downstream of the trailing edge meniscus of the slug. Data processing means is configured to derive a measure of interfacial tension based upon the differential pressure measured by the pressure sensor and, optionally, geometry of the capillary structure.

    Construction Of Digital Representation Of Complex Compositional Fluids
    10.
    发明申请
    Construction Of Digital Representation Of Complex Compositional Fluids 审中-公开
    复杂组成流体数字表示的构建

    公开(公告)号：US20160319640A1

    公开(公告)日：2016-11-03

    申请号：US15102271

    申请日：2014-11-25

    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

    Inventor： John Ratulowski ,  Denis Klemin ,  Mark Andersen ,  Oleg Dinariev ,  Nikolay Vyacheslavovich Evseev ,  Evgeny Ivanov ,  Sergey Sergeevich Safonov ,  Dmitry Anatolievich Koroteev

    IPC: E21B41/00 ,  G06F17/50 ,  E21B49/02 ,  E21B43/26 ,  E21B49/00 ,  E21B43/20

    CPC classification number: E21B41/0092 ,  E21B41/00 ,  E21B43/20 ,  E21B43/26 ,  E21B49/00 ,  E21B49/02 ,  G06F17/5009 ,  G06F2217/16

    Abstract: A method for performing a simulation of a field having a subterranean formation is described. The method includes obtaining phase behavior data of subterranean fluids of the field, generating an equation of state (EOS) model of the fluids based on the phase behavior data, generating a Helmholtz free energy model that reproduces predictions of the EOS model over a pre-determined pressure and temperature range, and performing the simulation of the field using the Helmholtz free energy model. The method may further include reducing the EOS model to a reduced EOS model having a reduced number of components to represent the EOS model over a pre-determined pressure and temperature range, generating the Helmholtz free energy model based on the reduced EOS model, and obtaining and using phase behavior data of injection fluids used. A computer system data.

    Abstract translation: 描述了一种用于执行具有地层的场的模拟的方法。 该方法包括获得该场的地下流体的相位行为数据，基于相位行为数据产生流体的状态方程（EOS）模型，产生一个亥姆霍兹自由能模型，该模型在一预定时间内再现EOS模型的预测， 确定的压力和温度范围，并使用亥姆霍兹自由能模型进行场的模拟。 该方法可以进一步包括将EOS模型减少到具有减少的部件数量的减少的EOS模型，以在预定的压力和温度范围内表示EOS模型，基于减少的EOS模型产生亥姆霍兹自由能模型，并获得 并使用注射液的相位行为数据。 计算机系统数据。

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