Patents by Inventor Nitin Y. Vaidya
Nitin Y. Vaidya 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: 8960313Abstract: A packer deployed well wall monitoring or transceiver assembly. The assembly may be particularly suited for use with swellable packers wherein the sensor or transceiver is delivered in a manner that substantially avoids damage thereto. Furthermore, the pre-deployment configuration of the assembly may enhance the deployment and reliability of the sensor in terms of formation monitoring over time. The deployment of the packer provides the energy required for the sensor or transceiver to contact the well wall. The packer elastomeric material provides or can be enhanced to provide isolation of the sensor or transceivers from extraneous borehole disturbances improving their signal to noise characteristics.Type: GrantFiled: March 9, 2011Date of Patent: February 24, 2015Assignee: Schlumberger Technology CorporationInventors: Stephen Dyer, Muhammad Shafiq, Michael Allen, Nitin Y. Vaidya
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Publication number: 20140251641Abstract: A hydraulic regulating mechanism for disposal in a well. The mechanism includes a degradable metal based element and a swellable component for hydraulic regulation. The mechanism is configured for ease of setting and removal by allowing degrading of the metal based element upon exposure of certain downhole conditions to trigger shrinking of the swellable component. Further, the swellable component may be initially set by exposure to downhole conditions as well. Ultimately, a mechanism is provided which may effectively regulate high pressure applications downhole and yet, as a practical matter, be removed via a displacement or drill out that may take less than 15 to 30 minutes to achieve.Type: ApplicationFiled: May 21, 2014Publication date: September 11, 2014Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Manuel Marya, Nitin Y. Vaidya
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Patent number: 8794310Abstract: Disclosed herein is a swellable packer having a support element. A portion of the support element is substantially adjacent to the base tubular. Another portion of the support element is separated from the base tubular and a portion of the area between the support element and the base tubular is filled with the swellable material. Also disclosed herein is a sealing system including a packer as described above and a method for sealing within a wellbore using a packer as describe above.Type: GrantFiled: November 6, 2009Date of Patent: August 5, 2014Assignee: Schlumberger Technology CorporationInventors: Michael Allen, Frederick Lemme, Nitin Y. Vaidya
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Patent number: 8696963Abstract: A swellable packer including a tubular member and a swellable element. The tubular member is disposable on a mandrel configured to be deployed into a wellbore. The swellable element is disposed around the tubular member, and has segments of different cross link densities, with the segments configured to provide a varying cross link density in the swellable element along a thickness of the swellable element, an azimuth of the swellable element, or both.Type: GrantFiled: July 10, 2012Date of Patent: April 15, 2014Assignee: Schlumberger Technology CorporationInventors: Nitin Y. Vaidya, Evgeny Barmatov
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Patent number: 8662172Abstract: A method for treating a subterranean formation penetrated by a wellbore comprising combining a carrier fluid, a first amount of particulates, and a second amount of particulates into a slurry, wherein the first amount of particulates have a first average size distribution and the second amount of particulates have a second average size distribution, wherein at least one of the first amount of particulates and the second amount of particulates comprise an expanding material, placing the slurry in the wellbore, and lowering a screen into the slurry.Type: GrantFiled: April 12, 2010Date of Patent: March 4, 2014Assignee: Schlumberger Technology CorporationInventors: Mohan K. R. Panga, Nitin Y. Vaidya, Bruno Drochon, Juan-Carlos Santamaria, Isabelle Couillet, Peter J. Photos, John W. Still, Balkrishna Gadiyar
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Patent number: 8651179Abstract: A swellable packer device upon exposure to brine in a well. The device may be swellable to a substantially constant profile in spite of significant fluctuations in brine concentrations. Thus, the likelihood of packer failure due to under-swelling or over-swelling is reduced. Indeed, the packer may be employed for long-term operations or isolations ranging from a couple of weeks to twenty years or more without undue concern over packer failure from under or over swelling.Type: GrantFiled: April 20, 2010Date of Patent: February 18, 2014Assignee: Schlumberger Technology CorporationInventors: Nitin Y. Vaidya, Frederick Lemme, Sr., Xiaohong Ren, John Whitsitt, Joseph K. Flowers, Rashmi Bhavsar
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Patent number: 8499843Abstract: The invention is a sealing system, such as a packer, that is used in a wellbore to seal against an exterior surface, such as a casing or open wellbore. The sealing system includes a swellable material that swells from an unexpanded state to an expanded state thereby creating a seal when the swellable material comes into contact with a triggering fluid.Type: GrantFiled: February 22, 2010Date of Patent: August 6, 2013Assignee: Schlumberger Technology CorporationInventors: Dinesh R. Patel, Y. Gill Hillsman, III, Herve Ohmer, Stephane Hiron, Philippe Gambier, Jonathan K. C. Whitehead, Randolph J. Sheffield, Rodney J. Wetzel, John R. Whitsitt, Thomas D. MacDougall, Nitin Y. Vaidya, James D. Hendrickson, John E. Edwards, Donald W. Ross, Rashmi B. Bhavsar
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Patent number: 8464581Abstract: A passive liquid flow monitoring system includes a monitoring device made of a liquid-soluble material in which coded transponders are releasably retained. The monitoring device may be deployed proximate a region of interest in a hydrocarbon-producing well. Characteristics of a liquid flow in the region of interest may be determined based upon detection of transponders that are released from the monitoring device when the monitoring device is exposed to the liquid flow.Type: GrantFiled: May 13, 2010Date of Patent: June 18, 2013Assignee: Schlumberger Technology CorporationInventors: Gary L. Rytlewski, Nitin Y. Vaidya
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Publication number: 20130133897Abstract: A valve device for restricting flow is provided that includes a degradable portion. A method of temporarily blocking flow is also provided which includes a degradable portion of an oilfield element.Type: ApplicationFiled: May 31, 2012Publication date: May 30, 2013Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Jason Baihly, Don Aldridge, Rashmi B. Bhavsar, Manuel P. Marya, Nitin Y. Vaidya
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Publication number: 20120318532Abstract: An elastomeric-based device configured for use in high temperature downhole environments exceeding about 400° F. The device includes a carbon nanotube mesh configured to dissipate heat relative elastomeric portions thereof so as to provide temperature resistance. Thus, a majority of modulus strength of the elastomeric portions may be maintained along with device functionality even upon exposure to such temperatures. Further, the mesh may also be configured to mimic the modulus character of elastomeric portions to allow a cohesive compliance to the device as a whole. Thus, isolation packers and other expansive downhole devices may particularly benefit from such combined material configurations as detailed herein.Type: ApplicationFiled: June 16, 2011Publication date: December 20, 2012Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Nitin Y. Vaidya, Iain Cooper, Kuo-Chiang Chen
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Publication number: 20120273119Abstract: A swellable packer including a tubular member and a swellable element. The tubular member is disposable on a mandrel configured to be deployed into a wellbore. The swellable element is disposed around the tubular member, and has segments of different cross link densities, with the segments configured to provide a varying cross link density in the swellable element along a thickness of the swellable element, an azimuth of the swellable element, or both.Type: ApplicationFiled: July 10, 2012Publication date: November 1, 2012Inventors: Nitin Y. Vaidya, Evgeny Barmatov
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Patent number: 8235108Abstract: A sealing member. The sealing member can include a support member having an inner bore and a plurality of apertures formed therethrough. An outer swellable element can be disposed about an outer diameter of the support member, and an inner swellable element can be disposed about an inner diameter of the support member. The swellable elements can be unitized with one another through each aperture. A retainer can be disposed at each end of the support member.Type: GrantFiled: March 2, 2009Date of Patent: August 7, 2012Assignee: Schlumberger Technology CorporationInventors: Frederick Lemme, Nitin Y. Vaidya
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Patent number: 8231947Abstract: Oilfield elements are described, one embodiment comprising a combination of a normally insoluble metal with an element selected from a second metal, a semi-metallic material, and non-metallic materials; and one or more solubility-modified high strength and/or high-toughness polymeric materials selected from polyamides, polyethers, and liquid crystal polymers. Methods of using the oilfield elements in oilfield operations are also described. This abstract allows a searcher or other reader to quickly ascertain the subject matter of the disclosure. It will not be used to interpret or limit the scope or meaning of the claims.Type: GrantFiled: June 30, 2006Date of Patent: July 31, 2012Assignee: Schlumberger Technology CorporationInventors: Nitin Y. Vaidya, Rashmi Bhavsar, Manuel Marya
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Patent number: 8225880Abstract: Disclosed herein is a completion device for a wellbore, that includes at least an elastomer circumferentially disposed around a tubular, the elastomer having a main sealing segment and at least one activation segment axially extending from the main sealing segment at opposing ends, wherein each activation segment has an exposed end; and an impermeable membrane circumferentially encasing the elastomer and configured to prevent an influx of wellbore fluids into the elastomer except at the exposed ends.Type: GrantFiled: December 1, 2009Date of Patent: July 24, 2012Assignee: Schlumberger Technology CorporationInventors: Gary L. Rytlewski, John Whitsitt, Nitin Y. Vaidya
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Publication number: 20120175135Abstract: A packer deployed well wall monitoring or transceiver assembly. The assembly may be particularly suited for use with swellable packers wherein the sensor or transceiver is delivered in a manner that substantially avoids damage thereto. Furthermore, the pre-deployment configuration of the assembly may enhance the deployment and reliability of the sensor in terms of formation monitoring over time. The deployment of the packer provides the energy required for the sensor or transceiver to contact the well wall. The packer elastomeric material provides or can be enhanced to provide isolation of the sensor or transceivers from extraneous borehole disturbances improving their signal to noise characteristics.Type: ApplicationFiled: March 9, 2011Publication date: July 12, 2012Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Stephen Dyer, Muhammad Shafiq, Michael Allen, Nitin Y. Vaidya
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Publication number: 20110277544Abstract: A passive liquid flow monitoring system includes a monitoring device made of a liquid-soluble material in which coded transponders are releasably retained. The monitoring device may be deployed proximate a region of interest in a hydrocarbon-producing well. Characteristics of a liquid flow in the region of interest may be determined based upon detection of transponders that are released from the monitoring device when the monitoring device is exposed to the liquid flow.Type: ApplicationFiled: May 13, 2010Publication date: November 17, 2011Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Gary L. Rytlewski, Nitin Y. Vaidya
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Publication number: 20110253393Abstract: A swellable packer device upon exposure to brine in a well. The device may be swellable to a substantially constant profile in spite of significant fluctuations in brine concentrations. Thus, the likelihood of packer failure due to under-swelling or over-swelling is reduced. Indeed, the packer may be employed for long-term operations or isolations ranging from a couple of weeks to twenty years or more without undue concern over packer failure from under or over swelling.Type: ApplicationFiled: April 20, 2010Publication date: October 20, 2011Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Nitin Y. Vaidya, Frederick Lemme, SR., Xiaohong Ren, John Whitsitt, Joseph K. Flowers, Rashmi Bhavsar
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Publication number: 20110247812Abstract: An apparatus and a method for treating a subterranean formation penetrated by a wellbore comprising combining a carrier fluid, a first amount of particulates, and a second amount of particulates into a slurry, wherein the first amount of particulates have a first average size distribution and the second amount of particulates have a second average size distribution, wherein the first amount of particulates comprise an expanding material, placing the slurry in the wellbore, and lowering a screen into the slurry.Type: ApplicationFiled: April 12, 2010Publication date: October 13, 2011Inventors: Mohan K.R. Panga, Nitin Y. Vaidya, Bruno Drochon, Juan-Carlos Santamaria, Isabelle Couillet, Peter J. Photos, John W. Still, Balkrishna Gadiyar
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Patent number: 8011438Abstract: An apparatus includes a base pipe and a fluid control material. The base pipe includes openings, and the fluid control material is mounted to the pipe to control fluid communication through the openings of the pipe. The fluid control material has a permeability that may be changed to selectively control the communication of well fluid through the openings.Type: GrantFiled: February 15, 2006Date of Patent: September 6, 2011Assignee: Schlumberger Technology CorporationInventors: John E. Edwards, Ronan Le Gloahec, Claude J. Vercaemer, Philippe Hocquet, Pierre-Yves Corre, Nitin Y. Vaidya
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Publication number: 20110120733Abstract: A swellable packer including a tubular member and a swellable element. The tubular member is disposable on a mandrel configured to be deployed into a wellbore. The swellable element is disposed around the tubular member, and has segments of different cross link densities, with the segments configured to provide a varying cross link density in the swelleable element along a thickness of the swellable element, an azimuth of the swellable element, or both.Type: ApplicationFiled: November 20, 2009Publication date: May 26, 2011Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Nitin Y. Vaidya, Evgeny Barmatov