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公开(公告)号：US20240144647A1
公开(公告)日：2024-05-02
申请号：US18050873
申请日：2022-10-28
Applicant: Schlumberger Technology Corporation
Inventor： Reda Karoum , Steven Young , Karim Bondabou , Maneesh Pisharat , Tetsushi Yamada
IPC: G06V10/764 , E21B21/06 , E21B49/00 , G06V10/26 , G06V10/54 , G06V10/56 , G06V10/774 , G06V10/776 , G06V10/82
CPC classification number: G06V10/764 , E21B21/065 , E21B49/003 , G06V10/26 , G06V10/54 , G06V10/56 , G06V10/774 , G06V10/776 , G06V10/82
Abstract: A method for evaluating solid drilling fluid additives such as lost cuttings materials (LCM) includes acquiring a calibrated digital image of solid particles separated from drilling fluid circulating in a wellbore. The calibrated digital image is processed to identify individual ones of the solid particles depicted in the image. Color features and/or texture features are extracted from the identified solid particles depicted in the image. The extracted color and/or texture features are processed to identify LCM particles among the identified solid particles and to classify each of the identified LCM particles into one of a plurality of LCM classes and thereby obtain an LCM particle classification.
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公开(公告)号：US20240059949A1
公开(公告)日：2024-02-22
申请号：US18491901
申请日：2023-10-23
Applicant: Schlumberger Technology Corporation
Inventor： Dimitri M. Khramov , Stephen Cliffe , Reda Karoum
Abstract: Wellbore fluids may include an oleaginous continuous phase; a non-oleaginous discontinuous phase; and a polymeric amidoamine emulsifier stabilizing the non-oleaginous discontinuous phase in the oleaginous continuous phase, wherein the polymeric amidoamine emulsifier has at least 5 repeating units. Wellbore fluids may include an oleaginous continuous phase; a non-oleaginous discontinuous phase; and a polymeric amidoamine emulsifier stabilizing the non-oleaginous discontinuous phase in the oleaginous continuous phase, wherein the polymeric amidoamine emulsifier includes at least 3 repeating units selected from allylamine, polyaminopolyamide, N-alkyl acrylamides, (meth)acrylic acid, alkyleneamine reacted with a dicarboxylic acid, alpha-olefin-alt-maleic anhydride, styrene maleic anhydride, alkylene oxide, wherein one or more amine or acid group on the repeating unit is amidized.
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公开(公告)号：US20220220356A1
公开(公告)日：2022-07-14
申请号：US17595244
申请日：2020-05-15
Applicant: Schlumberger Technology Corporation
Inventor： Dimitri M. Khramov , Stephen Cliffe , Reda Karoum
Abstract: Wellbore fluids may include an oleaginous continuous phase; a non-oleaginous discontinuous phase; and a polymeric amidoamine emulsifier stabilizing the non-oleaginous discontinuous phase in the oleaginous continuous phase, wherein the polymeric amidoamine emulsifier has at least 5 repeating units. Wellbore fluids may include an oleaginous continuous phase; a non-oleaginous discontinuous phase; and a polymeric amidoamine emulsifier stabilizing the non-oleaginous discontinuous phase in the oleaginous continuous phase, wherein the polymeric amidoamine emulsifier includes at least 3 repeating units selected from allylamine, polyaminopolyamide, N-alkyl acrylamides, (meth)acrylic acid, alkyleneamine reacted with a dicarboxylic acid, alpha-olefin-alt-maleic anhydride, styrene maleic anhydride, alkylene oxide, wherein one or more amine or acid group on the repeating unit is amidized.
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公开(公告)号：US11543556B2
公开(公告)日：2023-01-03
申请号：US16995325
申请日：2020-08-17
Applicant: Schlumberger Technology Corporation
Inventor： Yiqiao Tang , Reda Karoum , Yi-Qiao Song , Shin Utsuzawa , Stephen Cliffe
Abstract: A method for evaluating drilling fluid includes making an NMR measurement of a sample of the drilling fluid and inverting the measurements to compute a corresponding T1T2 plot. The T1T2 plot is in turn evaluated to characterize the drilling fluid. In one embodiment, a stability index of the fluid may be computed from multiple NMR measurements made while aging the sample.
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公开(公告)号：US11708518B2
公开(公告)日：2023-07-25
申请号：US16487830
申请日：2018-02-26
Applicant: Schlumberger Technology Corporation
Inventor： Dimitri M Khramov , Reda Karoum , Stephen Cliffe
CPC classification number: C09K8/36 , C09K8/035 , E21B21/00 , E21B21/001 , E21B21/062
Abstract: An additive composition includes a rheology modifier selected from alcohol ethoxylates, amine ethoxylates, or ethylene oxide/propylene oxide copolymers, wherein the rheology modifier has an HLB ranging from about 4 to 10; and a winterizing agent that is at least one aliphatic non-ionic surfactant that has a branched structure and/or includes at least one unsaturation, wherein the winterizing agent has an HLB value between about 8 and 10.5.
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Patent Agency Ranking
公开(公告)号：US11584876B2
公开(公告)日：2023-02-21
申请号：US15904897
申请日：2018-02-26
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Dimitri M. Khramov , Reda Karoum , Stephen Cliffe
Abstract: An additive composition includes a rheology modifier selected from alcohol ethoxylates, amine ethoxylates, or ethylene oxide/propylene oxide copolymers, wherein the rheology modifier has an HLB ranging from about 4 to 10; and a winterizing agent that is at least one aliphatic non-ionic surfactant that has a branched structure and/or includes at least one unsaturation, wherein the winterizing agent has an HLB value between about 8 and 10.5.
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公开(公告)号：US20240392682A1
公开(公告)日：2024-11-28
申请号：US18672601
申请日：2024-05-23
Applicant: Schlumberger Technology Corporation
Inventor： Reda Karoum , Steven Philip Young , Mahdi Ammar , Karim Bondabou
Abstract: A method for estimating a differential lag time while drilling includes introducing a multiphase tracer into drilling fluid circulating in a wellbore while drilling. The multiphase tracer includes a solid tracer and a fluid tracer in which the fluid tracer includes at least one of a liquid tracer or a gaseous tracer. A first arrival time of the solid tracer and a second arrival time of the fluid tracer are measured at a surface location and evaluated to estimate the differential lag time. The differential lag time includes at least one of a difference between a cuttings lag time and a gaseous lag time or a difference between the cuttings lag time and a liquid lag time.
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公开(公告)号：US11827838B2
公开(公告)日：2023-11-28
申请号：US17595244
申请日：2020-05-15
Applicant: Schlumberger Technology Corporation
Inventor： Dimitri M. Khramov , Stephen Cliffe , Reda Karoum
Abstract: Wellbore fluids may include an oleaginous continuous phase; a non-oleaginous discontinuous phase; and a polymeric amidoamine emulsifier stabilizing the non-oleaginous discontinuous phase in the oleaginous continuous phase, wherein the polymeric amidoamine emulsifier has at least 5 repeating units. Wellbore fluids may include an oleaginous continuous phase; a non-oleaginous discontinuous phase; and a polymeric amidoamine emulsifier stabilizing the non-oleaginous discontinuous phase in the oleaginous continuous phase, wherein the polymeric amidoamine emulsifier includes at least 3 repeating units selected from allylamine, polyaminopolyamide, N-alkyl acrylamides, (meth)acrylic acid, alkyleneamine reacted with a dicarboxylic acid, alpha-olefin-alt-maleic anhydride, styrene maleic anhydride, alkylene oxide, wherein one or more amine or acid group on the repeating unit is amidized.
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公开(公告)号：US11732580B2
公开(公告)日：2023-08-22
申请号：US17114575
申请日：2020-12-08
Applicant: Schlumberger Technology Corporation
Inventor： Reda Karoum , Yiqiao Tang , Shin Utsuzawa
CPC classification number: E21B49/0875 , E21B49/086 , G01N24/08 , G01N33/2823
Abstract: An NMR sensor is configured to make NMR measurements of a fluid and includes a housing defining a chamber. A nonmagnetic cap is deployed in the chamber and divides the chamber into first and second regions. The cap is sized and shaped to define a fluid collector in the first region. A magnet assembly is deployed in the second region and is configured to generate a static magnetic field in the fluid collector. A radio frequency (RF) coil is interposed between the magnet assembly and the cap and is configured to generate an RF magnetic field in the fluid collector. Methods include using the sensor to make NMR measurements of multi-phase fluids such as drilling fluid.
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公开(公告)号：US20250052705A1
公开(公告)日：2025-02-13
申请号：US18851167
申请日：2023-05-16
Applicant: Schlumberger Technology Corporation
Inventor： Reda Karoum , Adam Colbourne , Benjamin Merceron , Jerry Thomas Connaughton , Timothy Lesko , Brian Ligertwood , Chemsseddine Bouguetta
Abstract: A method for evaluating a multiphase drilling fluid includes receiving a sample of the multiphase drilling fluid and modifying the sample to enhance a separation of a first NMR peak corresponding to a first fluid phase component and a second NMR peak corresponding to a second fluid phase component. A nuclear magnetic resonance (NMR) measurement is made of the modified sample and evaluated to compute a property of the drilling fluid.
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