Patents by Inventor Mehmet Parlar

Mehmet Parlar 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).

  • Publication number: 20100018709
    Abstract: A method of gravel packing a wellbore penetrating a subterranean formation is provided. The wellbore has a cased section and an uncased section and contains synthetic or oil-based drilling fluids containing drilled solids. To carry out the method, fresh synthetic or oil-based displacement fluid that is free of drilled solids is introduced into the wellbore to displace the synthetic or oil-based drilling fluids from the uncased section of the wellbore. A water-based displacement fluid is introduced into the wellbore to displace fluids within the cased section of the wellbore. A sand control screen assembly is run to a selected depth within the uncased section of the wellbore. A gravel pack slurry containing gravel and a water-based carrier fluid is then introduced into the wellbore.
    Type: Application
    Filed: July 9, 2009
    Publication date: January 28, 2010
    Inventors: Mehmet Parlar, Balkrishna Gadiyar, Geovannys Gonzalez
  • Publication number: 20090301722
    Abstract: A method for removing drilling damage from a formation in a wellbore that has not been produced includes injecting a chemical-acting cleanup fluid and contacting it with a filtercake on a face of a formation of interest for a period of time sufficient to loosen some of the solids embedded in the filtercake. The method further includes circulating a solids removal fluid at a high rate through the wellbore across the face of the formation of interest, the solids removal fluid including a viscosifier, and positioning a second treatment fluid having a fluid loss control pill in the wellbore at the formation of interest. The method further includes degrading particles of the fluid loss control pill and degrading remaining bridging agent from the drilling fluid.
    Type: Application
    Filed: June 26, 2009
    Publication date: December 10, 2009
    Inventors: Mehmet Parlar, Balkrishna Gadiyar
  • Publication number: 20090301718
    Abstract: A system includes a wellbore intersecting a subterranean formation and a treatment flowpath disposed in the wellbore including a fluid path from a surface location to the subterranean formation and returning to the surface location. The treatment flowpath has a delivery flowpath upstream of the subterranean formation and a pertinent flowpath at and downstream of the subterranean formation. The system further includes a gravel pack assembly having a first crossover port fluidly coupling the delivery flowpath to the pertinent flowpath, a screen, a washpipe, and a second crossover port fluidly coupling the washpipe to a return portion of the pertinent flowpath. The system further includes a friction reducing agent that is effective in at least part of the pertinent flowpath, but that is not a friction reducer in solution in the treatment fluid at the surface location.
    Type: Application
    Filed: April 30, 2009
    Publication date: December 10, 2009
    Inventors: Belgin Baser, Sudhir Shenoy, Balkrishan Gadiyar, Carlos Abad, Mehmet Parlar
  • Publication number: 20090139723
    Abstract: A treatment fluid and a method are disclosed for cleaning borehole filtercake using the treatment fluid, wherein the filtercake contains reservoir drilling fluid (RDF) solids. The method includes pumping the treatment fluid downhole in contact with the filtercake to be removed to establish a differential pressure between the treatment fluid and the formation adjacent the filtercake, and evenly propagating treatment of the filtercake during the differential pressure period to delay breakthrough by the treatment fluid for a period from 1 to 12 hours. The treatment fluid comprises a fluoride source providing a 1.2 to 5 molar fluoride concentration, and another acid or combination of acids to provide a pH between 1.8 and 5. The treatment fluid is balanced for a dissolving power high enough to have significant dissolution of the filtercake, but low enough for even propagation to avoid premature leak-off.
    Type: Application
    Filed: November 29, 2007
    Publication date: June 4, 2009
    Inventors: Laurent Pirolli, Mehmet Parlar
  • Publication number: 20090133875
    Abstract: Method and apparatus for gravel packing an open-hole wellbore are disclosed. The apparatus includes a sandscreen disposed in the wellbore thereby creating an annulus between the wellbore and the sandscreen for receiving a gravel slurry. The apparatus further comprises a tubular member or wash pipe which is concentrically disposed in the sandscreen for receiving carrier fluid which passes through the sandscreen and for returning the carrier fluid to the earth's surface. At least one diverter valve is installed in the tubular member for permitting flow of the carrier fluid into the tubular member.
    Type: Application
    Filed: January 25, 2008
    Publication date: May 28, 2009
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Raymond J. Tibbles, Tomaso U. Ceccarelli, Bryan Stamm, Mehmet Parlar
  • Publication number: 20090065207
    Abstract: A method of treating a formation with a well treatment fluid comprising a clay stabilizer comprising a polyamine ether before or during a well treatment such as cleanup, gravel packing, fracturing, or the like. The stabilizer can continue to inhibit fines migration in the treatment zone even after an aqueous fluid without the stabilizer, e.g. a production fluid or injection fluid, displaces the original treatment fluid. When the stabilizer is used in a viscoelastic system (VES) with an acid blend component, the viscosity of the VES is essentially unchanged relative to the VES alone without the stabilizer.
    Type: Application
    Filed: August 20, 2008
    Publication date: March 12, 2009
    Inventors: Sudhir Shenoy, Mehmet Parlar
  • Patent number: 7431087
    Abstract: Delayed breakers are given that break viscoelastic surfactant fluids inside the pores of formations into which the fluids have been injected. The breakers comprise proteins, proteins that contain breakers, or cells that contain breakers. Proteins become breakers, and proteins and cells release breakers, due to a triggering mechanism that may be, for example, a change in temperature, pH, or salinity.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: October 7, 2008
    Assignee: Schlumberger Technology Corporation
    Inventors: Philip F. Sullivan, Belgin Baser, Carlos Abad, Yiyan Chen, Mehmet Parlar, Gregory Kubala
  • Publication number: 20080139416
    Abstract: A method for removing preexisting filtercake from a portion of a subterranean formation penetarted by a wellbore is carried out by providing water-degradable particles formed from a solid polymeric acid precursor material that is capable of a degrading to acid for reacting with materials of the filtercake. A slurry is formed from the particles with a carrier fluid. The slurry of particles is introduced into the formation through the wellbore and allowed to degrade to form acid, whereby the formed acid facilitates decomposition of preexisting filtercake material. In certain applications, the water-degradable particles may also be used in combination with non-water-degradable particles, which may be used for forming a gravel pack. The water-degradable particles may also be used to reduce fluid loss temporarily to areas of the formation immediately surrounding the wellbore.
    Type: Application
    Filed: December 12, 2006
    Publication date: June 12, 2008
    Inventors: Shawn McCleskey Rimassa, Mehmet Parlar
  • Publication number: 20080070809
    Abstract: Delayed breakers are given that break viscoelastic surfactant fluids inside the pores of formations into which the fluids have been injected. The breakers comprise proteins, proteins that contain breakers, or cells that contain breakers. Proteins become breakers, and proteins and cells release breakers, due to a triggering mechanism that may be, for example, a change in temperature, pH, or salinity.
    Type: Application
    Filed: October 25, 2007
    Publication date: March 20, 2008
    Inventors: Philip Sullivan, Belgin Baser, Carlos Abad, Yiyan Chen, Mehmet Parlar, Gregory Kubala
  • Patent number: 7287590
    Abstract: Delayed breakers are given that break viscoelastic surfactant fluids inside the pores of formations into which the fluids have been injected. The breakers comprise proteins, proteins that contain breakers, or cells that contain breakers. Proteins become breakers, and proteins and cells release breakers, due to a triggering mechanism that may be, for example, a change in temperature, pH, or salinity.
    Type: Grant
    Filed: September 18, 2006
    Date of Patent: October 30, 2007
    Assignee: Schlumberger Technology Corporation
    Inventors: Philip F. Sullivan, Belgin Baser, Carlos Abad, Yiyan Chen, Mehmet Parlar, Gregory Kubala
  • Patent number: 7275595
    Abstract: The present invention provides for an apparatus and method to displace fluids and to prevent the mixing or bypassing of fluids used in gravel pack operations. A moveable plug is used to create a physical partition between fluids.
    Type: Grant
    Filed: May 13, 2004
    Date of Patent: October 2, 2007
    Assignee: Schlumberger Technology Corporation
    Inventors: Samuel Tocalino, Mehmet Parlar, Gerard Daccord, Jean Desroches
  • Patent number: 7152677
    Abstract: The present invention provides a method for gravel packing a open-hole wellbore having a filter cake, comprising pumping a gravel slurry into a first portion of an annulus between the wellbore and a screen, at a sufficient rate and pressure to form at least a first fracture and diverting the gravel slurry to a second portion of said annulus through alternate flowpaths while providing hydraulic isolation between the first and the second portion of said interval, thereby preventing flowback from said second portion to said first portion and resulting extension of the first fracture, and thereby forming a second fracture in said second portion of said interval.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: December 26, 2006
    Assignee: Schlumberger Technology Corporation
    Inventors: Mehmet Parlar, Colin Price-Smith, Raymond Tibbles, Gary Hurst
  • Patent number: 6978838
    Abstract: A method is given for completing an interval of an open-hole injection well penetrating a subterranean formation when the interface between the wellbore and the formation includes a zone invaded by a filter cake that includes bridging materials and other embedded solid materials. The method includes the steps of injecting a clean-up fluid and contacting it with the filtercake for a period of time sufficient to loosen some of the other solids embedded in the filter cake; removing the loosened solids by a high-rate displacement fluid containing suspending additives; and then injecting a dissolving fluid containing a diverter and an effective amount of a salt or acid capable of dissolving the bridging material.
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: December 27, 2005
    Assignee: Schlumberger Technology Corporation
    Inventors: Mehmet Parlar, Mark Brady, Liz Morris
  • Publication number: 20050252657
    Abstract: The present invention provides for an apparatus and method to displace fluids and to prevent the mixing or bypassing of fluids used in gravel pack operations. A moveable plug is used to create a physical partition between fluids.
    Type: Application
    Filed: May 13, 2004
    Publication date: November 17, 2005
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Samuel Tocalino, Mehmet Parlar, Gerard Daccord, Jean Desroches
  • Patent number: 6883608
    Abstract: A method is disclosed for using aqueous VES-based gravel carrier fluids in gravel packing operations using screens and shunt tubes that have been run into a well completed with an oil-based mud. With this method, the previously necessary but undesirable steps of first running in a perforated liner and then displacing the oil-based mud with an aqueous-based fluid in the region to be gravel packed are both avoided while the advantages of gravel packing with an aqueous-based fluid are retained.
    Type: Grant
    Filed: August 20, 2003
    Date of Patent: April 26, 2005
    Assignee: Schlumberger Technology Corporation
    Inventors: Mehmet Parlar, Liz Morris, Yiyan Chen, Paul A. Price
  • Publication number: 20050028978
    Abstract: A method is disclosed for using aqueous VES-based gravel carrier fluids in gravel packing operations using screens and shunt tubes that have been run into a well completed with an oil-based mud. With this method, the previously necessary but undesirable steps of first running in a perforated liner and then displacing the oil-based mud with an aqueous-based fluid in the region to be gravel packed are both avoided while the advantages of gravel packing with an aqueous-based fluid are retained.
    Type: Application
    Filed: August 20, 2003
    Publication date: February 10, 2005
    Inventors: Mehmet Parlar, Liz Morris, Yiyan Chen, Paul Price
  • Patent number: 6762154
    Abstract: Present invention relates to high brine carrier fluid, said carrier fluid selected from the group consisting of organic acids, organic acid salts, inorganic salts and combination of one or more organic acids or organic acid salts, a co-surfactant and an amount of a zwitterionic surfactant. The invention also relates to methods of treating a subterranean wellbore, including drilling, hydraulic fracturing, gravel placement, scale removing, mud cake removing, using said high brine carrier fluid.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: July 13, 2004
    Assignee: Schlumberger Technology Corporation
    Inventors: Bernhard Lungwitz, Mark E. Brady, Sylvie Daniel, Mehmet Parlar, Colin J. Price-Smith, Elizabeth Morris
  • Patent number: 6752206
    Abstract: The present invention discloses a system using a conduit run into a well on a service string. In one embodiment the conduit includes outlets along its length to permit a sand control treatment to exit the conduit along the length of the conduit and distribute the sand control treatment along the length of the conduit. The conduit can have a plurality of such outlets spaced to provide an even distribution of the sand control treatment. The conduit can be attached to the delivery tubing (such as coiled tubing or service string tubing) via a releasable connector. The conduit is deployed on the delivery tubing and connector (and is in fluid communication therewith) in the well adjacent to an area to be treated. The sand control treatment is pumped into the well. Once the sand control treatment is complete, the releasable connector is released to disconnect the conduit from the delivery tubing and the delivery tubing is removed from the well.
    Type: Grant
    Filed: July 20, 2001
    Date of Patent: June 22, 2004
    Assignee: Schlumberger Technology Corporation
    Inventors: Graham Watson, Geoffrey R. Kernick, Colin J. Price-Smith, Mehmet Parlar
  • Patent number: 6725929
    Abstract: A well completion method performed in a single trip into a well includes inserting a service tool into the well to a desired location; gravel packing the well; and circulating fluids within the wellbore through the service tool to dislodge and remove filter cake residue. A method of completing a subterranean well performed in a single trip into a wellbore includes running a service tool into the well, the service tool defining multiple, selectable flow paths; gravel packing the well; selecting a different flow path of the service tool; removing a filter cake from the wellbore by circulating a fluid through the service tool; spotting specially fluids within the wellbore at desired locations; and removing the service string from the well.
    Type: Grant
    Filed: May 7, 2003
    Date of Patent: April 27, 2004
    Assignee: Schlumberger Technology Corporation
    Inventors: Harold S. Bissonnette, Jake A. Danos, Mehmet Parlar, Colin J. Price-Smith
  • Publication number: 20040035579
    Abstract: The present invention provides a method for gravel packing an open-hole wellbore having a filter cake, comprising pumping a gravel slurry into a first portion of an annular between the wellbore and a screen, at a sufficient rate and pressure to form at least a first fracture and diverting the gravel slurry to a second portion of said annular through alternate flowpaths while providing hydraulic isolation between the first and the second portion of said interval thereby preventing flowback from said second portion to said first portion and resulting extension of the first fracture and forming a second fracture in said second portion of said interval.
    Type: Application
    Filed: August 11, 2003
    Publication date: February 26, 2004
    Inventors: Mehmet Parlar, Colin Price-Smith, Raymond Tibbles