Patents by Inventor Alexander F. Zazovsky
Alexander F. Zazovsky has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9915137Abstract: A method of fracturing multiple zones within a wellbore formed in a subterranean formation is carried out by forming flow-through passages in two or more zones within the wellbore that are spaced apart from each other along the wellbore. The flow-through passages are arranged into clusters, where the directions of all flow-through passages, which belong to the same cluster, are aligned within a single plane (cluster plane). At least one cluster of flow-through passages is formed in each zone. The clusters within each zone have characteristics different from those of other zones provided by orienting the cluster planes at different angles relative to principal in-situ stresses and by placing them into different locations along the wellbore in each of the two or more zones. A propellant pre-fracturing treatment is then performed in the two or more zones to create initial fractures (pre-fractures) in each of the two or more zones.Type: GrantFiled: May 11, 2015Date of Patent: March 13, 2018Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Olga Petrovna Alekseenko, Alexander F. Zazovsky, Dmitriy Ivanovich Potapenko, Christopher N. Fredd
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Patent number: 9644478Abstract: A sampling assembly of a single packer assembly may have more guard drains than sampling drains. The single packer assembly having the sampling assembly may be deployed in a wellbore formed in a subterranean formation, and the single packer assembly may be deployed on a wireline cable or another deployment or conveyance. The number and the area of the sampling drains, the number and the area of the guard drains, and the positions of the sampling drains and the guard drains may be designed so that the guard drains which are operational may provide a fluid intake rate exceeding a predetermined threshold if one of the guard drains is congested and/or blocked.Type: GrantFiled: December 20, 2011Date of Patent: May 9, 2017Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Pierre-Yves Corre, Stephane Metayer, Alexander F. Zazovsky, Stephen Yeldell, Darya Mustafina
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Patent number: 9574938Abstract: An optical fluid analyzer tool may have an evaluation flowline which receives a flow of fluid from a geotechnical formation and may have a cleanup flowline which receives another flow of fluid from the geotechnical formation. A flow routing system may be connected to the evaluation flowline and may be connected to the cleanup flowline. The flow routing system may establish isolated flow or commingled flow for the evaluation flowline and may establish isolated flow or commingled flow for the cleanup flowline. A sample chamber may be connected to the evaluation flowline and may be connected to the cleanup flowline. A first pump module may draw the fluid from the geotechnical formation, and an optical fluid analyzer connected to the cleanup flowline and the evaluation flowline may analyze the fluid.Type: GrantFiled: December 22, 2011Date of Patent: February 21, 2017Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Alexander F. Zazovsky, Mark Milkovisch, Toru Terabayashi
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Patent number: 9371730Abstract: A technique involves collecting formation fluids through a single packer. The single packer comprises an outer bladder with drains positioned in the outer bladder to obtain formation fluid samples. Features also may be incorporated into the single packer to limit sealing in the circumferential spaces between the drains and to provide a larger sampling surface than provided simply via the drain surface area.Type: GrantFiled: October 21, 2011Date of Patent: June 21, 2016Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Pierre-Yves Corre, Stephane Metayer, Jean-Louis Pessin, Kathiravane Tingat Cody, Alexander F. Zazovsky
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Patent number: 9303509Abstract: An apparatus comprising first and second fluid intakes, a pump, and a sample chamber, may be positioned in a borehole penetrating a subterranean formation. A method of use thereof may comprise drawing fluid from the subterranean formation and into the first and second fluid intakes using the pump, discharging into the borehole at least a portion of the fluid drawn into the second fluid intake, and selectively diverting at least a portion of the fluid drawn into the first fluid intake to the sample chamber.Type: GrantFiled: January 13, 2011Date of Patent: April 5, 2016Assignee: Schlumberger Technology CorporationInventors: Mark Milkovisch, Alexander F. Zazovsky, Simon Ross
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Patent number: 9121263Abstract: The examples described herein relate to methods and apparatus for cleanup prediction and monitoring. A disclosed method of predicting cleanup of a sample fluid obtained by a downhole tool includes drawing the sample fluid into the downhole tool via a probe assembly; measuring optical densities of the sample fluid at a plurality of different respective times; selecting at least some of the measured optical densities as fitting points; identifying one or more inversion parameters; and performing, via a processor, an inversion using the fitting points, the inversion parameters and simulation data to generate data associated with a predicted cleanup of the sample fluid.Type: GrantFiled: October 6, 2010Date of Patent: September 1, 2015Assignee: Schlumberger Technology CorporationInventors: Alexander F. Zazovsky, Alexander Skibin, Darya Mustafina, Jaideva C. Goswami
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Publication number: 20150240613Abstract: A method of fracturing multiple zones within a wellbore formed in a subterranean formation is carried out by forming flow-through passages in two or more zones within the wellbore that are spaced apart from each other along the wellbore. The flow-through passages are arranged into clusters, where the directions of all flow-through passages, which belong to the same cluster, are aligned within a single plane (cluster plane). At least one cluster of flow-through passages is formed in each zone. The clusters within each zone have characteristics different from those of other zones provided by orienting the cluster planes at different angles relative to principal in-situ stresses and by placing them into different locations along the wellbore in each of the two or more zones. A propellant pre-fracturing treatment is then performed in the two or more zones to create initial fractures (pre-fractures) in each of the two or more zones.Type: ApplicationFiled: May 11, 2015Publication date: August 27, 2015Inventors: Olga Petrovna Alekseenko, Alexander F. Zazovsky, Dmitry Ivanovich Potapenko, Christopher N. Fredd
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Patent number: 9097107Abstract: A technique involves collecting formation fluids through a single packer having at least one drain located within the single packer. The single packer is designed with an outer structural layer that expands across an expansion zone to facilitate creation of a seal with a surrounding wellbore wall. An inflatable bladder can be used within the outer structural layer to cause expansion, and a seal can be disposed for cooperation with the outer structural layer to facilitate sealing engagement with the surrounding wellbore wall. One or more drain features are used to improve the sampling process and/or to facilitate flow through the drain over the life of the single packer.Type: GrantFiled: July 23, 2013Date of Patent: August 4, 2015Assignee: Schlumberger Technology CorporationInventors: Pierre-Yves Corre, Edward Harrigan, Alexander F. Zazovsky, Stephane Briquet, Stephen Yeldell, Carsten Sonne, Stephane Metayer
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Patent number: 9081121Abstract: The method of a mud cake thickness determination provides sending short high-frequency signals into a formation from at least two positions located at different distances from the mud cake and recording arrival times of reflected echo signals. The mud cake thickness is determined based on the time measured.Type: GrantFiled: December 6, 2011Date of Patent: July 14, 2015Assignee: Schlumberger Technology CorporationInventors: Timur Zharnikov, Masafumi Fukuhara, Alexander F. Zazovsky, Fernando Garcia-Osuna
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Patent number: 9057250Abstract: Methods and apparatuses for evaluating a fluid from a subterranean formation of a wellsite via a downhole tool positionable in a wellbore penetrating a subterranean formation are provided. The apparatus relates to a downhole tool having a probe with at least two intakes for receiving fluid from the subterranean formation. The downhole tool is configured according to a wellsite set up. The method involves positioning the downhole tool in the wellbore of the wellsite, drawing fluid into the downhole tool via the at least two intakes, monitoring at least one wellsite parameter via at least one sensor of the wellsite and automatically adjusting the wellsite setup based on the wellsite parameters.Type: GrantFiled: March 3, 2010Date of Patent: June 16, 2015Assignee: Schlumberger Technology CorporationInventors: Alexander F. Zazovsky, Ricardo Vasques, Christopher S. Del Campo, Grace Yue Qiu
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Patent number: 9027641Abstract: A method of fracturing multiple zones within a wellbore formed in a subterranean formation is carried out by forming flow-through passages in two or more zones within the wellbore that are spaced apart from each other along the wellbore. The flow-through passages are arranged into clusters, where the directions of all flow-through passages, which belong to the same cluster, are aligned within a single plane (cluster plane). At least one cluster of flow-through passages is formed in each zone. The clusters within each zone have characteristics different from those of other zones provided by orienting the cluster planes at different angles relative to principal in-situ stresses and by placing them into different locations along the wellbore in each of the two or more zones. A propellant pre-fracturing treatment is then performed in the two or more zones to create initial fractures (pre-fractures) in each of the two or more zones.Type: GrantFiled: August 5, 2011Date of Patent: May 12, 2015Assignee: Schlumberger Technology CorporationInventors: Olga Petrovna Alekseenko, Alexander F Zazovsky, Dmitry Ivanovich Potapenko, Christopher N Fredd
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Patent number: 9022105Abstract: An arrangement having a body with at least one drain provided in the body is disclosed. The drain is configured to receive fluid when the body is expanded from a first unexpanded condition to a second expanded condition. At least one flowline is connectable to the drain. A screen is positioned over the drain and is configurable to expand from the first unexpanded condition to the second expanded condition.Type: GrantFiled: June 25, 2012Date of Patent: May 5, 2015Assignee: Schlumberger Technology CorporationInventors: Pierre-Yves Corre, Stephane Metayer, Alexander F. Zazovsky, Stephen Yeldell, Jean-Louis Pessin
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Patent number: 8899324Abstract: A method for sampling fluid in a subterranean formation includes reducing a viscosity of the fluid, pressurizing a portion of the subterranean formation, and collecting a fluid sample. Specifically, a viscosity of the fluid in a portion of the subterranean formation is reduced and a portion of the subterranean formation is pressurized by injecting a displacement fluid into the subterranean formation. A sample of the fluid pressurized by the displacement fluid is then collected.Type: GrantFiled: July 23, 2013Date of Patent: December 2, 2014Assignee: Schlumberger Technology CorporationInventors: Alexander F. Zazovsky, Anthony Goodwin, Jacques R. Tabanou, Kambiz A. Safinya
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Patent number: 8899323Abstract: Modular pumpouts and flowline architecture are described. An example apparatus includes a downhole tool to sample fluid from a subterranean formation, and a plurality of fluidly coupled pump modules disposed on the downhole tool. Each of the pump modules includes: a pump having a pump inlet and a pump outlet, where the pump inlet is coupled to a first flowline; a first valve assembly having first, second and third ports, wherein the first port is coupled to the first flowline, the second port is coupled to the pump outlet, and the third port is coupled to the first flowline; and a second flowline not fluidly coupled to the first valve assembly or the pump.Type: GrantFiled: November 28, 2011Date of Patent: December 2, 2014Assignee: Schlumberger Technology CorporationInventors: Alexander F. Zazovsky, Mark Milkovisch
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Publication number: 20140151039Abstract: An arrangement having a body with at least one drain provided in the body is disclosed. The drain is configured to receive fluid when the body is expanded from a first unexpanded condition to a second expanded condition. At least one flowline is connectable to the drain. A screen is positioned over the drain and is configurable to expand from the first unexpanded condition to the second expanded condition.Type: ApplicationFiled: June 25, 2012Publication date: June 5, 2014Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Pierre-Yves Corre, Stephane Metayer, Alexander F. Zazovsky, Stephen Yeldell, Jean-Louis Pessin
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Publication number: 20140144625Abstract: A technique involves collecting formation fluids through a single packer. The single packer comprises an outer bladder with drains positioned in the outer bladder to obtain formation fluid samples. Features also may be incorporated into the single packer to limit sealing in the circumferential spaces between the drains and to provide a larger sampling surface than provided simply via the drain surface area.Type: ApplicationFiled: October 21, 2011Publication date: May 29, 2014Applicant: Schlumberger Technology CorporationInventors: Pierre-Yves Corre, Stephane Metayer, Jean-Louis Pessin, Kathiravane Tingat Cody, Alexander F. Zazovsky
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Publication number: 20140020890Abstract: A sampling assembly of a single packer assembly may have more guard drains than sampling drains. The single packer assembly having the sampling assembly may be deployed in a wellbore formed in a subterranean formation, and the single packer assembly may be deployed on a wireline cable or another deployment or conveyance. The number and the area of the sampling drains, the number and the area of the guard drains, and the positions of the sampling drains and the guard drains may be designed so that the guard drains which are operational may provide a fluid intake rate exceeding a predetermined threshold if one of the guard drains is congested and/or blocked.Type: ApplicationFiled: December 20, 2011Publication date: January 23, 2014Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Pierre-Yves Corre, Stephane Metayer, Alexander F. Zazovsky, Stephen Yeldell, Darya Mustafina
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Publication number: 20130306309Abstract: A technique involves collecting formation fluids through a single packer having at least one drain located within the single packer. The single packer is designed with an outer structural layer that expands across an expansion zone to facilitate creation of a seal with a surrounding wellbore wall. An inflatable bladder can be used within the outer structural layer to cause expansion, and a seal can be disposed for cooperation with the outer structural layer to facilitate sealing engagement with the surrounding wellbore wall. One or more drain features are used to improve the sampling process and/or to facilitate flow through the drain over the life of the single packer.Type: ApplicationFiled: July 23, 2013Publication date: November 21, 2013Applicant: Schlumberger Technology CorporationInventors: Pierre-Yves Corre, Edward Harrigan, Alexander F. Zazovsky, Stephane Briquet, Stephen Yeldell, Carsten Sonne, Stephane Metayer
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Publication number: 20130306307Abstract: A method for sampling fluid in a subterranean formation includes, reducing a viscosity a fluid, pressurizing a portion of the subterranean formation, and collecting a fluid sample. Specifically, a viscosity of a fluid in a portion of the subterranean formation is reduced and a portion of the subterranean formation is pressurizing by injecting a displacement fluid into the subterranean formation. A sample of the fluid pressurized by the displacement fluid is then collected.Type: ApplicationFiled: July 23, 2013Publication date: November 21, 2013Applicant: Schlumberger Technology CorporationInventors: Alexander F. Zazovsky, Anthony Goodwin, Jacques R. Tabanou, Kambiz A. Safinya
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Publication number: 20130293891Abstract: An optical fluid analyzer tool may have an evaluation flowline which receives a flow of fluid from a geotechnical formation and may have a cleanup flowline which receives another flow of fluid from the geotechnical formation. A flow routing system may be connected to the evaluation flowline and may be connected to the cleanup flowline. The flow routing system may establish isolated flow or commingled flow for the evaluation flowline and may establish isolated flow or commingled flow for the cleanup flowline. A sample chamber may be connected to the evaluation flowline and may be connected to the cleanup flowline. A first pump module may draw the fluid from the geotechnical formation, and an optical fluid analyzer connected to the cleanup flowline and the evaluation flowline may analyze the fluid.Type: ApplicationFiled: December 22, 2011Publication date: November 7, 2013Applicant: Schlumberger Technology CorporationInventors: Alexander F. Zazovsky, Mark Milkovisch, Toru Terabayashi