公开(公告)号：US12298242B2

公开(公告)日：2025-05-13

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：US20250025826A1

公开(公告)日：2025-01-23

申请号：US18775229

申请日：2024-07-17

Applicant: Schlumberger Technology Corporation

Inventor： Roman Alexandrovich Skachkov ,  Shahnawaz Hossain Molla ,  Davuluri Prahlada Rao ,  Sandeep Verma ,  Bruno Lecerf

IPC: B01D53/06 ,  B65G33/14 ,  B65G33/26

Abstract: Systems and methods presented herein provide for a screw conveyor adsorption moving bed that separates carbon dioxide from a gas mixture. Adsorbent particles are transported between an adsorption section of the reactor, which can be an outer column, and a desorption section, which can be an inner column. The particle transport is facilitated by the screw conveyor located inside the inner column. The screw conveyor is specially designed to have a hollow screw, shaped as a spiral surface, attached to a central shaft. The screw surface is also equipped with plurality of holes and a flexible edge attachment to seal against the cylindrical surface. The hollow shape allows the gas to flow from the inlet of the shaft to the particles through the holes on the screw, thus creating uniform gas distribution.

公开(公告)号：US20240392654A1

公开(公告)日：2024-11-28

申请号：US18676028

申请日：2024-05-28

Applicant: Schlumberger Technology Corporation

Inventor： Anna Beletskaya ,  Ryan Epp ,  Konstantin Viktorovich Vidma ,  Roman Alexandrovich Skachkov ,  Christopher S. Daeffler ,  Richard L. Christie ,  Shahnawaz Hossain Molla ,  Glen Andrew Hay

IPC: E21B41/00 ,  B01D53/04 ,  B01D53/14 ,  B01D53/26

Abstract: A system for capturing a target species from an exhaust gas stream generated by at least one engine at a surface of a wellbore utilized in reservoir stimulation for subsurface energy recovery. The system includes a heat exchanging system for cooling the exhaust gas stream to a predetermined temperature. The system includes a water separation unit for separating a liquid from the cooled exhaust gas stream. The system includes a target species capture module for capturing the target species from the cooled exhaust gas stream. The system includes a target species regeneration module to extract the captured target species. The system includes a target species compression module for liquefying the captured target species. The system includes a target species storage module for storing the liquified target species, wherein the system is mounted on a mobile platform for transportation to and from the surface of the wellbore.

公开(公告)号：US20210062650A1

公开(公告)日：2021-03-04

申请号：US17010368

申请日：2020-09-02

Applicant: Schlumberger Technology Corporation

Inventor： Shahnawaz Hossain Molla ,  Maneesh Pisharat ,  Yujian Wu ,  Farshid Mostowfi ,  Oscar Eduardo Torres Jaimes

IPC: E21B49/08

Abstract: Methods (and related apparatus) include obtaining data regarding a measured property. The measured property includes an amount of each of predetermined hydrocarbons in a gas sample extracted from drilling fluid exiting a wellbore having a hydrocarbon resource. An unknown characteristic of an investigated fluid property of the hydrocarbon resource is predicted utilizing the obtained input data and one or more predetermined models each built via statistical classification and regression analysis of a preexisting database containing records. Each record includes known characteristics of fluid properties of a different one of known reservoir fluids. The fluid properties include the investigated fluid property and the measured property. The investigated fluid property includes a fluid type of the hydrocarbon resource, an amount of at least one additional hydrocarbon, gas-oil ratio, or stock tank oil density.

公开(公告)号：US10281397B2

公开(公告)日：2019-05-07

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

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：US10254216B2

公开(公告)日：2019-04-09

申请号：US15638443

申请日：2017-06-30

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Vincent Joseph Sieben ,  Kenneth John Chau ,  Shahnawaz Hossain Molla ,  Farshid Mostowfi ,  Elizabeth Jennings Smythe

IPC: G01N21/05 ,  G01N21/25 ,  G01N21/27 ,  G01N33/28 ,  G01N21/552

Abstract: An optical sensor includes a flow cell permitting flow of a hydrocarbon-based analyte therethrough. A metallic film is disposed adjacent or within the flow cell. At least one optical element directs polychromatic light for supply to an interface of the metallic film under conditions of surface plasmon resonance (SPR) and directs polychromatic light reflected at the interface of the metallic film (which is sensitive to SPR at such interface and thus provides an SPR sensing region within the flow cell) for output to at least one spectrometer that measures spectral data of such polychromatic light. A computer processing system is configured to process the measured spectral data over time as the hydrocarbon-based analyte flows through the flow cell to determine SPR peak wavelength over time and to process the SPR peak wavelength over time to determine at least one property related to phase transition of the analyte.

公开(公告)号：US20250101867A1

公开(公告)日：2025-03-27

申请号：US18725452

申请日：2023-04-05

Applicant: Schlumberger Technology Corporation

Inventor： Shahnawaz Hossain Molla ,  Elham Mahmoodaghdam

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

Abstract: Systems and methods for identifying a likelihood of problematic reservoir fluid containing asphaltene and/or an asphaltene onset pressure (AOP) using downhole fluid analysis data are provided. A method may include retrieving downhole fluid analysis data corresponding to a reservoir fluid that was obtained by a downhole acquisition tool positioned in a wellbore. The method may also include using a statistical model trained using historical downhole fluid analysis data and laboratory measurements to identify, based on the downhole fluid analysis data corresponding to the reservoir fluid, a likelihood of whether the reservoir fluid contains asphaltenes or an asphaltene onset pressure (AOP) of the reservoir fluid.

公开(公告)号：US20240299896A1

公开(公告)日：2024-09-12

申请号：US18181176

申请日：2023-03-09

Applicant: Schlumberger Technology Corporation

Inventor： Roman Alexandrovich Skachkov ,  Shahnawaz Hossain Molla

IPC: B01J10/00 ,  B01J19/26

CPC classification number: B01J10/00 ,  B01J19/26

Abstract: Embodiments presented provide for a method and design of heat effective rotated packed beds wherein rotating packed bed technologies have heat transfer capabilities to enhance separation, absorbing and desorbing capabilities. Such beds are used in industries including heavy processing, chemical, petrochemical and pharmaceutical industries.

公开(公告)号：US20220349302A1

公开(公告)日：2022-11-03

申请号：US17755090

申请日：2020-10-22

Applicant: Schlumberger Technology Corporation

Inventor： Shahnawaz Hossain Molla ,  Farshid Mostowfi ,  John Nighswander ,  Adriaan Gisolf ,  Kai Hsu ,  Shunsuke Fukagawa ,  Thomas Pfeiffer

IPC: E21B49/08 ,  G01N21/31 ,  G01N33/28

Abstract: Embodiments present a method for fluid type identification from a downhole fluid analysis that uses machine learning techniques that are trained and derived from a computer model using pressure, temperature and downhole optical characteristics of sampled fluid. The method comprises collecting optical spectral data for a downhole fluid; providing the collected optical spectral data to a trained classification module; processing the collected optical spectral data with the trained classification module configured to determine a fluid type classification; and determining a fluid type based upon the classification based upon the trained classification module.

公开(公告)号：US11028690B2

公开(公告)日：2021-06-08

申请号：US16029683

申请日：2018-07-09

Applicant: Schlumberger Technology Corporation

Inventor： Farshid Mostowfi ,  Ronald E. G. van Hal ,  Shahnawaz Hossain Molla ,  Jane T. Lam ,  Amy Du ,  Neil William Bostrom ,  Michael Mallari Toribio

IPC: E21B49/08 ,  B01L3/00 ,  B01F13/00

Abstract: A technique facilitates detection and analysis of constituents, e.g. chemicals, which may be found in formation fluids and/or other types of fluids. The technique comprises intermittently introducing a first fluid and a second fluid into a channel in a manner which forms slugs of the first fluid separated by the second fluid. The intermittent fluids are flowed through the channel to create a mixing action which mixes the fluid in the slugs. The mixing increases the exchange, e.g. transfer, of the chemical constituent between the second fluid and the first fluid. The exchange aids in sensing an amount of the chemical or chemicals for analysis. In many applications, the intermittent introduction, mixing, and measuring can be performed in a subterranean environment.