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公开(公告)号：US20200377778A1
公开(公告)日：2020-12-03
申请号：US16985490
申请日：2020-08-05
Applicant: Schlumberger Technology Corporation
Inventor： Andrey Yakovlev , Giselle Refunjol , Mei Ho , Bernhard Lungwitz
Abstract: Methods herein may include injecting a cement slurry having an aqueous base fluid, a cement, and a plurality of cellulose nanofibers dispersed in the aqueous base fluid. The plurality of cellulose nanofibers may be present in the slurry in an amount effective to provide a slurry density of not higher than 15 lb/gal.
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公开(公告)号：US20190309211A1
公开(公告)日：2019-10-10
申请号：US15947169
申请日：2018-04-06
Applicant: Schlumberger Technology Corporation
Inventor： Andrey Yakovlev , Giselle Refunjol , Mei Ho , Bernhard Lungwitz
Abstract: Methods herein may include injecting a cement slurry having an aqueous base fluid, a cement, and a plurality of cellulose nanofibers dispersed in the aqueous base fluid. The plurality of cellulose nanofibers may be present in the slurry in an amount effective to provide a slurry density of not higher than 15 lb/gal.
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公开(公告)号：US20170198191A1
公开(公告)日：2017-07-13
申请号：US15355684
申请日：2016-11-18
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Dmitriy Ivanovich Potapenko , Alexey Alexandrovich Sova , Svetlana Viktorovna Nesterova , Olga Petrovna Alekseenko , Bruno Lecerf , Marina Nikolaevna Bulova , John Daniels , Jose Alberto Ortega Andrade , Bernhard Lungwitz , Jiangshui Huang
IPC: C09K8/516 , E21B43/26 , E21B33/138 , E21B43/267 , C09K8/70 , C09K8/80
Abstract: Methods of treating a subterranean formation penetrated by a well bore, by providing a treatment fluid comprising a blend including a first amount of particulates having a first average particle size between about 3 mm and 2 cm and a second amount of particulates having a second average size between about 1.6 and 20 times smaller than the first average particle size or a second amount of flakes having a second average size up to 10 times smaller than the first average particle size; by introducing the treatment fluid into the well bore; and by creating a plug with the treatment fluid.
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公开(公告)号：US09611716B2
公开(公告)日：2017-04-04
申请号：US13630781
申请日：2012-09-28
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Fatma Daou , Bernhard Lungwitz , Olga Alexandrovna Minikh , Diankui Fu
IPC: E21B33/138 , C09K8/035 , C09K8/50 , E21B21/00
CPC classification number: E21B33/138 , C09K8/035 , C09K8/50 , E21B21/003
Abstract: The current application discloses compositions and methods for reducing fluid loss during subterranean operations. CO2 activated swellable elastomers can be used in subterranean operations to reduce fluid loss. In particular, the current application discloses compositions and methods for reducing lost circulation during drilling and drilling related subterranean operations.
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公开(公告)号：US20160102242A1
公开(公告)日：2016-04-14
申请号：US14969258
申请日：2015-12-15
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Andrey Fedorov , Bernhard Lungwitz , Olesya Levanyuk , Philippe Enkababian
IPC: C09K8/74
CPC classification number: C09K8/74 , C09K2208/30
Abstract: A treatment fluid made of mineral acid, viscoelastic surfactant, at least one of a fluoride source and a chelant, and optionally a corrosion inhibitor. A method of combining a mineral acid, viscoelastic surfactant, at least one of a fluoride source and a chelant, and optionally a corrosion inhibitor, in a fluid mixture. A method of contacting a low-temperature formation with a fluid mixture of mineral acid, viscoelastic surfactant, at least one of a fluoride source and a chelant, and optionally a corrosion inhibitor.
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Patent Agency Ranking
公开(公告)号：US20140110114A1
公开(公告)日：2014-04-24
申请号：US13657865
申请日：2012-10-23
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Fatma Daou , Bernhard Lungwitz
IPC: E21B33/13
CPC classification number: E21B33/14
Abstract: A cement for use in wells in which hydrogen sulfide is present, comprises elastomer particles. In the event of cement-matrix failure, or bonding failure between the cement/casing interface or the cement/borehole-wall interface, the elastomer particles swell when contacted by hydrogen sulfide. The swelling seals voids in the cement matrix, or along the bonding interfaces, thereby restoring zonal isolation.
Abstract translation: 用于存在硫化氢的井中的水泥包括弹性体颗粒。 在水泥基体破坏或水泥/套管界面或水泥/井壁界面之间的接合失效的情况下，当硫化氢接触时弹性体颗粒膨胀。 膨胀密封水泥基体中的空隙，或沿着粘合界面，由此恢复区带隔离。
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7.发明申请Additive to Fluid for The Treatment of Subterranean Formation and A Method for Treating Subterranean Formation 审中-公开用于处理地下地层的流体的添加剂和处理地下地层的方法公开(公告)号：US20130168096A1
公开(公告)日：2013-07-04
申请号：US13717411
申请日：2012-12-17
Applicant: Schlumberger Technology Corporation
CPC classification number: C09K8/62 , C09K8/665 , C09K8/68 , C09K8/70 , C09K2208/08 , C09K2208/30 , E21B43/16 , E21B43/26
Abstract: The composition includes a pH adjusting agent and a precipitation-control agent. The pH adjusting agent provides the hydrolysis of degradable fibers at a temperature of no more than 50° C. and comprises substances that may provide and maintain a high pH environment. The precipitation-control agent allows maximally delaying or completely suppressing the formation and deposition of precipitate during the hydrolysis of the degradable components in the treatment fluid A method of treating an subterranean formations penetrated by a wellbore with the additives described herein comprises providing a treatment fluid comprising a base mixture and a degradable substance, with additionally added degradable materials, and injecting the prepared treatment fluid into the subterranean formation.
Abstract translation: 该组合物包括pH调节剂和沉淀控制剂。 pH调节剂在不超过50℃的温度下提供可降解纤维的水解，并且包括可提供并保持高pH环境的物质。 沉淀控制剂允许最大限度地延迟或完全抑制处理流体中可降解组分水解期间沉淀物的形成和沉积。用本文所述的添加剂处理由井眼渗透的地下地层的方法包括提供处理流体，其包括 基础混合物和可降解物质，另外添加可降解材料，并将制备的处理流体注入地层中。
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公开(公告)号：US11319476B2
公开(公告)日：2022-05-03
申请号：US16985490
申请日：2020-08-05
Applicant: Schlumberger Technology Corporation
Inventor： Andrey Yakovlev , Giselle Refunjol , Mei Ho , Bernhard Lungwitz
IPC: C09K8/10 , C09K8/473 , C04B18/24 , C04B20/00 , C04B28/02 , C09K8/467 , C09K8/70 , B82Y30/00 , C04B103/00 , E21B33/14 , B82Y40/00
Abstract: Methods herein may include injecting a cement slurry having an aqueous base fluid, a cement, and a plurality of cellulose nanofibers dispersed in the aqueous base fluid. The plurality of cellulose nanofibers may be present in the slurry in an amount effective to provide a slurry density of not higher than 15 lb/gal.
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公开(公告)号：US10808497B2
公开(公告)日：2020-10-20
申请号：US15355684
申请日：2016-11-18
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Dmitriy Ivanovich Potapenko , Alexey Alexandrovich Sova , Svetlana Viktorovna Nesterova , Olga Petrovna Alekseenko , Bruno Lecerf , Marina Nikolaevna Bulova , John Daniels , Jose Alberto Ortega Andrade , Bernhard Lungwitz , Jiangshui Huang
IPC: E21B33/138 , C09K8/516 , C09K8/70 , C09K8/80 , E21B43/267 , E21B43/26 , E21B21/00
Abstract: Methods of treating a subterranean formation penetrated by a well bore, by providing a treatment fluid comprising a blend including a first amount of particulates having a first average particle size between about 3 mm and 2 cm and a second amount of particulates having a second average size between about 1.6 and 20 times smaller than the first average particle size or a second amount of flakes having a second average size up to 10 times smaller than the first average particle size; by introducing the treatment fluid into the well bore; and by creating a plug with the treatment fluid.
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公开(公告)号：US10040985B2
公开(公告)日：2018-08-07
申请号：US15300206
申请日：2014-03-31
Applicant: Schlumberger Technology Corporation
Inventor： Olga Alexandrovna Minikh , Diankui Fu , Fatma Daou , Bernhard Lungwitz
Abstract: Adding shapeable particles to drilling fluids may be useful for curing lost circulation. When the shapeable particles are pumped downhole through the drillpipe and the drillbit, they may deform when exposed to shear as they pass through the drillbit nozzles. While circulating back toward the surface they may relax at least partially and assume the shape of cracks or voids they encounter along the formation wall, thereby stopping losses.
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